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Donlin Creek Power Feasibility Study Volumes 3 & 4
Donlin Creek Mine Power Supply Feasibility Study Volume 3 Appendix B Volume 4 Appendix C-E Public Draft March 20,2004 Donlin Creek Mine Power Supply Feasibility Study Nuvista Light &Power,Co. 301 Calista Ct. .Anchorage,AK 99518-2038 Volume 3 Appendix B Public Draft March 20,2004 Bettine,LLC 1120 E.Huffman Rd.Pmb 343 Anchorage,AK 99501 907-336-2335 TABLE OF CONTENTS VOLUME I SECTION I -EXECUTIVE SUMMARY SECTION II -INTRODUCTION SECTION II -POWER SUPPLY ALTERNATIVES SECTION IV -138-kV TRANSMISSION LINE &SUBSTATIONS SECTIONV -PRELIMINARY ENVIRONMENTAL PLANNING SECTION VI-PROJECT COST ESTIMATES SECTION VII-©PROJECT MANAGMENT &SCHEDULING SECTION VII-PROJECT FINANCING SECTION IX -ECONOMIC ANALYSIS OF POWER SUPPLY ALTERNATIVES GLOSSARY OF TERMS VOLUME 2 _Appendix A -Coal Plant Feasibility Design and Report Prepared by PES VOLUME 3 Appendix B -Modular Plant Feasibility Design and Report Prepared by PES VOLUME 4 Appendix C -138 kV Transmission Line Feasibility Design Information Appendix D -Electric System Studies Prepared by EPS Appendix E -Foundation and Fuel Storage Feasibility Design Reports Prepared by -LCMF VOLUME 5 Appendix F -Preliminary Environmental Assessment Review Appendix G -Economic Analysis Appendix H -Miscellaneous Information Appendix I-Public Comments MODULAR POWER GENERATION PLANT FEASIBILITY STUDY BETHEL &CROOKED CREEK ALASKA FOR NUVISTA LIGHT &POWER,CO. June 30,2003 Prepared By: Precision Energy Services,Inc. Project Development Division PRECISION ENERGY i SERVICES INC. P.O.Box 1004 ¢Hayden,Idaho 83835 (208)772-4457 www.pes-world.com -TABLE OF CONTENTS I.INTRODUCTION II.DEFINITIONS II.DEFINITIONS HI.PROJECT SPECIFICATIONS V.FUEL SELECTION VI.DESCRIPTION OF THE POWER PLANT VII.RELIABILITY AND AVAILABILITY STUDY VIII.COST SUMMARY IX.OPERATION AND MAINTENANCE ATTACHMENTS: Schedule General Contractor Drawings Photos Maintenance &Repair Shops Alstom GE Diesel Conceptual Design Report 0.FuelsPeSINANawNe 55 60 JDE*PRECISIONENERGY SERVICES INC. I.INTRODUCTION This report is part of a feasibility study prepared by Bettine LLC for Nuvista Light&Power,Co.for the development of a Power Plant for the supply of electric power to the Placer Dome's Donlin Gold Mine Site and to the City of Bethel,Alaska and regional villages.The study evaluates two sites for the location of the Power Plant,one at Bethel and one at Crooked Creek.The positive and negative aspects of each location are being evaluated.In addition to evaluating power generation,the feasibility of providing district heating to the residents of Bethel,local institutions (schools, community college,hospital,local prison)and local businesses,is being evaluated.The goal of this report is to provide the project developers with sufficient information including specific recommendations to identify the most reliable and feasible,long-term power production options, which would result in generating electric and thermal energy at competitive pricing as well as facilitate reduction of State payments in the framework of the Power Cost Equalization Program. Permitting standards and expected performance related to the operation of the Power Plant have been included to make the developer aware of the possible requirements.The proposed Power Plant is termed "Modular”to reflect the design of the plant allowing a significant degree of its transportability. In the Feasibility Study,two technologies for power generation are assessed: --Generation of power by combined cycle with combustion turbines and cogeneration in a heat recovery steam generator and steam turbine generator. -Power generation by diesel engines. The costing information provided herein is based on actual cost proposals provided by five companies -two being suppliers of combined cycle (GE and Alstom)and three suppliers of diesel generation sets (MAN B&W,Wartsilla and RUMO).Following initial evaluation,it was decided to exclude from further assessment the Russian-made engines.These engines are of the same design as MAN (license),the price difference is practically non-existent and the manufacturer has no servicing capabilities in North America.Information and qualifications are included in the Appendix Vendor Data. This report includes one section which evaluates applicable fuels from various points of view such as properties (heating value,sulfur content,etc.)and cost determined in dollars per million Btu.Fuel properties impact both the capital cost (for example,whether or not a flue gas de-sulfurization system is needed)and the operating cost. Pertaining to the plant located in Bethel,the evaluations also include the supply of heat energy toa district heating system in the City of Bethel.The study does not evaluate the feasibility of the application of district heating for specific or individual recipients of thermal energy.Included, however,is sufficient information to conduct such evaluations for most of the potential customers of .the district heating system.The Application of heat pumps was considered for recovering low temperature latent heat of steam condensation in the steam cycle.The conclusion of the evaluation was that the cost of this recovery exceeds the possible savings. The Power Plant specifications are provided at the beginning of the study.Definitions of the terms used in the report are included.The two locations are shown on the following map. aes ee yankee ey inne SreeSnr"?a Smeousaas)Sy : wy nonaneore TES:aN wae ecacheORaieSa Poy payooly F Pwo |oMnsty .ONISIDIANIS AGUENE NOISID38d RES PRECISION ENERGY SERVICES INC. DEFINITIONS CHP Cogeneration Heat Plant CT Combustion Turbine CTG Combustion Turbine and Generator set ASL Elevation Above Sea Level DH District Heating -Gpm or gpm _US Gallon Per MinuteHRSGHeatRecoverySteam Generator MPP Modular Power Plant MWe Mega Watt electric PM Prime Mover STG Steam turbine and Generator set MM Btu Million Btu SCR Selective Catalytic Reduction (of NOx) BOP Balance of plant ACI American Concrete Institute AISC American Institute of Steel Construction ANSI American National Standards Institute ASME American Society of Mechanical Engineers ASME B31.1 Power PipingASTMAmericanSociety for Testing Materials AWS American Welding SocietyCTICoolingTowerInstituteHEIHeatExchangeInstituteHISHydraulicInstituteStandardsIEEEInstituteofElectrical&Electronic Engineers ISA Instrument Society of AmericaNECNationalElectricCode NFPA National Fire Protection AgencyNFPCNationalFireProtectionCode OSHA Occupation Safety &Health ActTEMATubularExchangersManufacturer's AssociationUBCUniformBuildingCodeUMCUniformMechanicalCodeUPCUniformPlumbingCode UL Underwriters Laboratory -industrial insurance company FM Factory Mutual -industrial insurance company PRECISION SERVICES INC. Til.PROJECT SPECIFICATIONS A.Requirement Specifications Plant location Units Bethel Crooked Creek Required electric power supply at Donlin Mine MWe :70.0 70.0 Transmission line losses MWe 5.0 0.5 Local usage (Bethel,villages)MWe 12.8 1.0 Parasitic power (Power Plant use) .MWe 2.3 2.3 Required electric power output,net at transformer MWe 90.1 73.8 Thermal energy supply to the District Heating (DH)system Yearly average heat supply million Btu/hr 134 1.6 Average winter supply ;million Btw/br ©177 2.2 Maximum winter supply million Btu/hr 230 3.0 Utility water for consumption lb/hr 161,200 2,000 Gpm 322 4.0 Assumed that all utility water is consumed,0 return. Heating water 20%losses,80%return. The DH system will use hot water as the energy carrier: fe)Water temperature,outgoing °F 170 -175 °Return ) °F 125 -130 °Water pressure,out psig 100 fe)Return,design psig 20 Heating of the hot water will be achieved primarily by utilization of waste heat including latent heat of condensation of the steam cycle. B.Local Conditions Power Plant location Bethel CrookedCreck Elevation above sea level ft ASL 100 200 Temperatures -see graph on the following page Average humidity range:60%(summer)to 85%(winter) PRECISION ENERGY SERVICES INC. The Crooked Creek site is 135 miles inland from Bethel in the N-E direction.The weather there will be slightly more of the continental type with colder winters.The elevation of the plant above sea level at Crooked Creek is 200 feet.At the time of preparation,there was no specific information relating to the weather conditions at Crooked Creek. Figure 2 Average Temperatures Average Temperatures and Records for Bethel,AKFC 90 32 5 2 ptr salaC60457_tLLLEN aerate Nes ghhas?aa OA VN Todi M Field AR ene aan eeSu4yAsewmoteB154pnfeyaaa6,hy na foa+tyEaraneVow,nf0-17 Benes %T4526 nit'crnaniktNaN30-34 a's ohare nw Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Average High Average Low : Record High/Low Month C.Other Design Requirements The Power Plant will be modularized to the highest possible degree,such that it can be shipped in major assemblies minimizing field installation work. Primary Fuel -see Fuel Specifications Summary and in Appendix Fuel Data. Diesel Fuel DF2 or Fuel Oil No.2 at LHV 18,421 Btuw/Ib and pour point not higher than minus 15°F. Job Conditions: .Electrical 460 V,4160 V,3 ®,60 Hz Equipment Location Indoors «Insurance Codes/Requirements UL,FM,NFPA PRECISION ENEROY SERVICES INC. Emission Standards The most likely standards that the Modular Power Plant will have to comply with are: SO,500 ppm molar fraction Remark:Tocomply with this standard,the sulfur content in the fuel should not exceed 0.5%by weight. co There is no State standard for CO emissions from liquid fuel fired power generation equipment;however,exceeding 100 tons per year may trigger the . requirement for a New Source Review and the setting of a performance standard for the plant. NOx The State of Alaska does not have a standard for NOx;however,the standard to be used here will most likely be 0.15 Ib/million Btu or 95 ppm vol.at 15%O2. PM The standard for particulate matter (PM)is 0.10 grain per cubic foot at standard | conditions (=0.22 lb/MM Buy)averaged overT 3 hours. The values for expected standards were obtained from the Alaska Department of Environmental Conservation as guidelines for plant design.The actual performance requirements will be determined based on application for the Permit to Construct and Permit to Operate. PRECISIONJDFE*ENERGYSERVICES INC. 'IV.DESIGN PHILOSOPHY The Power Plant design is based on the capability to erect the plant in a short time with little site preparation and,if required to move the plant easily to a different location with little financial burden.Because of this,the Study evaluates locating the plant at two sites (see map in Figure 1): *City of Bethel «Crooked Creek The requirement for modularity has limited the selection of the power generating technology.The field was limited practically to two technologies that are capable of delivering the required electric power and of being almost 100%reliable.The technologies are: «Generation of power in the combined cycle with combustion turbines and heat recovery steam generator with steam turbine and generator. «Power generation in diesel engines. Since in plants of this type the cost of fuel constitutes the greatest parts of the total operating cost including debt service and return on investment (up to 85%),fuel economy became the most important guidance for the design philosophy.As a result,combined cycle or other type of waste heat recovery is being evaluated herein. The MPP will not include large buildings enclosing the entire plant or parts thereof:rather it will have systems enclosed,as much as possible in modular structures.Control room(s),office and space for personnel needs (locker rooms,sanitary facilities,ect.)will also be provided in modular units. The location of the MPP also has a major impact on the plant size and required facilities.As shown in the Specifications,the plant located in Crooked Creek would supply about 14.5 MW less electric power.The plant will not have to supply thermal energy for district heating;only a small amount for oil tank heating.Supplying thermal energy for the Crooked Creek village will be marginal. The Bethel location presents more energy requirements,both in power and thermal energy.The fuel cost is lower by about 15%than that in Crooked Creek because it does not include the cost ofbargingtoCrookedCreek.The City has a commercial airport and the additional infrastructure isprovidedbytheCity. Crooked Creek requires less capital investment due to lower power and thermal energy demand, however,due to its remoteness,it is inaccessible during the winter and early spring season,which - may impact the cost of maintenance and the reliability of the system. PRECISIONDES:SERVICES INC.FUEL SELECTION A.Comparison of Various Fuels Table 1 summarizes the evaluation of various applicable fuels for the MPP.All of the listed fuels can be used for firing in combustion turbines.All fuels except Naphtha can be used to fire diesel engines.The list was put together as a result of evaluating various fuels.Some fuels with prices significantly above the indicated range were not included. Table 1 (Prices as of Jan 30",2003) Fuel cost per MM Btu gross Btu/lb $/pal $/MM Btu |$/gal incl $/MM Btu $/gal incl.5M BtuAllBtu/Ib or gallon values are Btu/gal Ib /gal t a excl.shipping to in Bethel shipping to hippi ;.NET LHV ar reamery shipping Bethel °CC s pn ° Diesel Fuel No.2 (TESORO)130936 7.07 0.85 6.53 1.04 7.99 1.25 9.60 Diesel Fuel No.1 gross ;ate 6.74 0.90 7.19 1.09 8.71 130]10.39 DP2%)|196679 6.86 0.87 6.87 1.06 8.37 1.27/10.03 Jet B |)yong 6.30 0.88 7.19 1.07 9.47 1.28 11.33 ALASKA)”FUEL (WILLIAMS at aos 715 0.87 6.58 1.06 8.03)1.265 9.63 17,973 ,JP-4 Ha 194 6.30 0.87 7.69 1.06 9.36 1.27]11.22 Naphtha 19,743 6.09 0.82 6.82 1.01 8.40 1.22/10.14120,277 Heating fuel Product Nr.43 pe e30 6.96 0.86 6.79 1.05 8.29 1.26 9.95 PRECISION BMERGY P SERVICES INC. Some fuels that seem to be good candidates for the project have not been included due to obvious reasons,such as very low availability and high cost.For example fuel oil No.4 could be a better fuel,however,its availability in Western Alaska is low,therefore,it is more expensive,expressed in $/MM Btu than DF2 that has a lower heating value. The evaluation presented in Table 1 is reduced to the common denominator of the fuels: delivered cost of 1 million Btu. As indicated in Table 1,Diesel Fuel No.2 and Fuel Oil No.2 are the most feasible fuels.In addition to excellent combustion properties (heating value,density,flash point),these fuels have good transport properties (low viscosity).The sulfur content of the fuels is limited to 0.5%;however,the sulfur content of the Tesoro DF2 has usually been in the range of 0.1%. The low percentage of sulfur results in low SO?concentration in the flue gas;thus,expensive flue gas desulfurization systems (FGD)are not needed.Emissions that are significantly below standard can be used as environmental credits to offset other pollution sources of the company or to trade with other companies. B.Fuel Shipping Transporting the fuel from Cook Inlet or West Coast USA/Canada to Bethel or Crooked Creek requires three steps:Linehaul barge transportation into the Kuskokwim River to Bethel,off-load,temporary storage and transfer of fuel to smaller barges,lighterage in smaller barges from Bethel to Crooked Creek.The shallow nature of the Kuskokwim above Aniak (between Bethel and Crooked Creek)provides the greatest challenge,both physically and financially,to this endeavor.The estimate of delivering,with specialized shallow-draft tugs and barges that can operate between Bethel and Crooked Creek,approximately 32,000,000 gallons to Crooked Creek will cost up to $12,800,000,not including fuel cost. Delivery of the same quantity of fuel to Bethel will cost approximately $6,720,000 less -a .large incentive for the Bethel location.There is currently enough ocean barge capacity to cover the offshore leg. Both Yukon Fuel Company and Crowley Marine each operate 10 million gallon tank farms in Bethel,which,with some alterations,could serve as a safety cushion in case ofa late start of fuel shipments due to weather conditions or other unforeseeable events and can supply the balance of the required fuel. The price structure of fuel to Crooked Creek is presented in Table 2 The price structure is based on the assumption that Cook Inlet would be the source of most of this product,but there are definitely other options.Depending on world and domestic market conditions,bringing tank ships into Dutch Harbor,discharging their cargo into shore- based storage,or lightering into shallow barges and shuttling the product into the Kuskokwim may be a viable alternative.That scenario may or may not save money. PRECISION EMESGY SERVICES INC. Table 2 Basic Fuel Price (Seattle Low Sulfur Diesel #2)as at 1/22/03 ._$0.85/gal Linehaul transportation from Cook Inlet to Bethel $0.19/gal Total Estimated Price at Bethel $1.04/gal Bethel storage expenses (seasonal throughput).$0.08/gal Shallow-draft transportation from Bethel to Crooked Creek $0.21/gal Total Estimated Price at Crooked Creek:$1.25/gal The $0.08/gallon storage expense is applicable to loads that are intermittently stored at the named company's facilities.It does not apply to shipments to Crooked Creek. While the marine operations companies believe that it is possible to move the required volume from Bethel to Crooked Creek,the operators are nevertheless nervous about the practicality of fitting all of the additional traffic onto the river.Fuel barges are much more efficient than freight barges because of their lack of need for deck strength and unloading equipment,and further,lend themselves more easily to rafting.The scenarios proposed by Yukon and Crowley assume that they can raft up to four barges per tug.Any freight operation will be hard pressed to handle more than two barges per tug.The fuel shippingoperationswillbeconductedannuallybetweenJune1**and September 30".The project owner may want to consider purchasing barges and tugs. The fuel shipping companies assume that all of the fuel will originate in Cook Inlet. Thereis a more feasible option to deliver fuel to Dutch Harbor by a tanker and shipinfuelbargestoBetheland/or Crooked Creek. C.Fuel Receiving and Storage System The Fuel Receiving and Storage System includes the following installations: .Fuel barge off-loading dock with a marine header located on the west bank of the Kuskokwim River at Bethel and the north bank of the river at Crooked Creek.The dock design was developed by Peratrovich,Nottingham and Drage,Inc.for the Donlin Creek Mine Late Stage FEvaluation Study andproposedbyLCMFLLC. .An 8-inch pipeline connecting at the dock site to a marine header and on the other side to a header for filling all tanks at the bulk fuel facility. .Bulk fuel tank farm facilitating storage of approximately 25 million gallons of fuel for Bethel and 22 million gallons at Crooked Creek.This equates to a nine-month supply of fuel at either Bethel or Crooked Creek.A fuel reserve of 3.2 gallons (1 tank)will be created in the first year of fuel shipping. .The tank farm will consist of eight insulated tanks,each 120 feet diameter and 40 feet high with a nominal storage capacity of 3.2 million gallons.The tanks will be heated with waste heat from the heat recovery system of the 10 PRECISION EMERY SERVICES INC. prime movers to keep the fuel above the specified minimum temperature of 20°F. .One 100,000 gallon insulated intermediate fuel tank located near the prime movers.The tank is heated to the temperature of 70°F to improve fuel handling and injection into the engines of the prime movers. .A transfer pump will deliver the fuel from the bulk fuel tank facility headers to the intermediate storage tank via a 4-inch delivery pipe insulated with removable panels.A standby transfer pump is also included. The fuel tanks will require 121,000 Btu/hr,averaged annually to maintain the minimum internal temperature of 20°F.The intermediate fuel tank will require 7,330 Btu/hr averaged annually to maintain the internal operating temperature of 70°F.The heat will be provided from the heat recovery system of the Power Plant. Specific information relating to tank design and construction is provided in the Report:Site Development,Earthworks Foundations and Bulk Fuel;Conceptual Design Report By LCMF,LLC. 11 JDE*PRECISIONEMERGY SERVICES INC. VI.DESCRIPTION OF THE POWER PLANT The major systems of the MPP located in Bethel are listed by systems in this Section.The Crooked Creek Power Plant location will include a less number of diesel engines and less fuel storage tankage.The district heating system for the Crooked Creek village,if decided to be developed,will consist only of two heat exchangers and piping to the houses.All drawings are attached at the end of this section. 1.Fuel Receiving and Storage described in Section V 2.Power Generation System described in Section VIB 3.District Heating System described in Section VIB 4,Environment Protection System described in Section VI C 5.Balance of Plant Systems described in Section VID 6.Drawings of Plant In Section following VIB A.Power Generation System The Power Generation System consists of: 1.Prime Movers -Combustion Turbine or Diesel Engine 2.Heat Recovery Steam Generator System 3.Steam Turbine System 4,Electric Generation System 5.Feedwater and Make-up Water Treatment System 6.Instrumentation and Controls including the DCS System B.Prime Movers As determined in the Section "Design Philosophy”,depending on the plant location, different outputs will be required of the Power Plant: *90.1 MW electric +up to 230 million Btu/br thermal energy for the Bethel. location Oo «73.8 MW electric +marginal amount of thermal energy for the Crooked Creek location The prime movers will provide all required power and 180 MM Btw/hr (in Bethel)thermal energy for the district heating system.For extremely cold temperatures (up to 50 MM Btu/hr additional heat demand),the plant with CT will activate firing of the duct burner. The diesel-based plant will have to start up the auxiliary boiler. Based on equipment capabilities,the following alternative arrangements of prime movers . has been selected: Table 3 Prime Movers 12 PRECISION ENEROY mn)SERVICES INC. Location:Bethel Nominal PM Output Number Power Prime mover MWe/unit ofunits Installed Required i.Alstom GTX100 CTG 42 2 84.0 65.6 Stand-by GTX100 42 .1 42.0 32.8 iii GELM6000 CTG 46.5 2°93.0 90.1 Stand-by LM6000 46.5 1 46.5 45.0 iii,MAN B&W 18V48/60 diesel gen set 18.4 5 82.0 90.1 iv.Stand-by 18.4 2 36.8 18.4* v. Wartsila 18V46/60 diesel gen set 16.5 6 99.0 90.1 vi.Stand-by 16.5 2 33.0 16.5* *Diesel engine stand-by quantities include:one engine hot stand-by (can operate at 100% output within 10 minutes of order) One engine in maintenance/repair Location:Crooked Creek Nominal PM Output Number Power Prime mover MWe/unit ofunits Installed Required i.Alstom GTX100 CTG 42.0 2 84.0 57.4 Stand-by GTX100 42.0 1 42.0 28.7 iii GELM6000 CTG 46.5 2 93.0 65.0 Stand-by LM6000 46.5 1 46.5 46.5 iii,MAN B&W 18V48/60 diesel gen set 18.4 4 92.0 75.6 iv.Stand-by -18.4 2 36.8 18.4* v..Wartsila 18V46/60 diesel gen set 16.5 5 82.5 75.6 vi.Stand-by 16.5 2 33.0 16.5* *See remark above Neither MAN B&W nor Wartsila included heat recovery options.Other companies specializing in heat recovery from diesel engines systems will provide those.Section VIprovidesadiscussionofwasteheatrecoveryoptions. The Alstom combustion turbine GTX100 showsa flat efficiency curve for loads between 65%and 100%.The turbines will work most of the time in this range.GE's CTG does not include the flat,horizontal line indicating constant fuel consumption rate at increasing load. _Unit fuel consumption of GE's aeroderivative turbines is strongly dependant on the load practically over the entire range of load.When the power demand decreases to below 60MWe,only one Alstom or GE CTG +STG set will be operating. Table 4 13 IDES PRECISIONERERGY SERVICES INC. Output of heat recovery system Total Plant output with PM MWe Installed Required i.Alstom 2 CTG,1 HRSG+1STG Bethel 152 MWe 90.1 MWe +1 CTG stand-by Crooked Creek 152 MWe =75.6 MWe In this STG both locations 26 MWe District heating Bethel +177 MM Btu/hr Crooked Creek +2.0 MM Btvhr ii.GE 2 CTG+1 HRSG+1 STG Bethel 150 MWe =90.1 MWe +1 CTG stand-by Crooked Creek 150 MWe 75.6 MWe In this STG 10.6 MWe District heating MM Btu/hr Bethel +177 MM Btu/hr Crooked Creek +2.0 MM Btuw/hr iii.MAN B&W Bethel 118.8MWe 90.1 MWe Crooked Creek -118.8 MWe 75.6 MWe Heat recovery system Bethel +125.7 MM Btu/hr (insufficient heat supply) Crooked Creek 2.0 MM Btu/hbr iv.Wartsila HRSG Bethel 132.0MWe 90.1 MWe Crooked Creek 115.5 MWe 75.6 MWe Heat recovery system Bethel +118.6 MM Btw/hr (insufficient heat supply) Crooked Creek +2.0 MM Btu/hr C.Comparison of Combustion Turbines with Diesel Engines applied in the Prime Moving duty. Combustion turbines have become a widely accepted technology for producing power,especially when there is a need for small efficient Power Plants working in the combined cycle.Diesel engines have been proven over numerous years and the application to be a reliable source of power in Alaska.Both technologies demonstrate advantages and disadvantages,as outlined below: 1.Combustion Turbine Advantages a.High Efficiency when applied in the combined cycle.The exhaust gas temperature in a combustion turbine is very high,in the range of 900°F to 1100°F,which makes recapturing the heat for cogeneration and production of additional power in a steam turbine relatively easy. In the case of the MPP,where there is need for recovering low temperature heat for tank and space heating,the thermal efficiency depends only on the minimum allowable stack temperature 14 IPE:PRECISION EREQGY SERVICES INC. determined by the SO.content in it.In the MPP a total thermal efficiency of 84%is not only possible but feasible. High Reliability -Combustion turbines are well known for their excellent reliability,approaching 100%(see attached charts for the GE LM2500 turbine,Appendix).The reliability of GE's LM6000 and Alstom's GTX100 is in the same range. Multi-Fuel Capability -Combustion turbines offer the ability to burn various fuels ranging from natural gas to Naphtha and diesel fuel. Relative efficiency remains comparatively consistent for all fuels and only varies with the heating value of the fuels.The multi-fuel capability makes the CT a reliable choice for Alaska,where during certain times some fuels may not be readily available. Low Weight -Combustion turbines exhibit low unit mass per MW output,especially when compared with diesel engines. 2.Combustion Turbine Disadvantages: a.Lower Efficiency in the simple cycle as compared to Diesel engines. Fora combustion turbine plant to operate at peak efficiency the steam loop must be included and operating. Requires well experienced and educated maintenance staff. Specialized parts -Combustion turbines require specialized parts, which are only obtainable from the manufacturer. 3.Advantages of Slow Speed Diesel Engines a.High Efficiency -Slow speed diesel engines,operating at 514 RPM offer the best simple cycle thermal efficiency of any technology readily available.This means that even when the heat recovery system is inoperable,the engines can operate with 48%efficiency. This is much higher than the combustion turbines,which have a simple cycle efficiency of 37%.This also leads to lower fuel consumption than combustion turbines in simple cycle. Multi Fuel Capability -Slow speed diesels are able to burn every fuel we have investigated except for Naphtha.Again,since fuel availability may change in a remote location like Bethel this is a benefit. . Drawbacks of Diesel Engines: 15 PES PRECISION BREREY SERVICES INC. Weight -The Diesel engines are extremely heavy,which means moving them on and offsite will require very large cranes.The 18 MW diesel engines evaluated in this study (18V46 or 18V48)weigh in excess of 260 tonnes (570,000 Ibs)-each,or roughly 16 tons of weight per MW of output,which makes moving them difficult.For comparison;a combustion turbine of twice the output weighs less than 40 tonnes or roughly one ton of weight per MW of output. Foundation construction cost is closely tied to the weight and vibrations generated by the engines.Due to their low rotational speed in the range of 514 RPM their low frequency vibrations are significantly closer to the natural frequency of the support structures and more likely to cause resonance.The foundations required for the diesels must be highly engineered;they are significantly larger and more complicated than those for CTs.There will also be a need for an increased number of piles to account for the additional weight and vibration loads. Lower Combined Cycle Efficiency -In combined cycle with district heating,the thermal efficiency of the diesels is lower than a combined cycle combustion turbine arrangement.This is due to the lower temperature exhaust heat available from the diesels and large losses in the lubricating oil and jacket water cooling systems.With the highest possible degree of waste heat recovery,the thermal efficiency of system with the diesel engine is up to 10%lower than the equivalent thermal efficiency of a combustion turbine applied in the combined cycle. Lubrication Oil Needs -Slow speed diesels require massive amounts of lubrication oil to operate.At full load the lubricating oil consumption is 0.8 gram/kWh (0.00176 Ib/kWh),which for the Bethel located plant operating at average 80%capacity will amount to 556 tons,over 3500 barrels of lubricating oil per year. Maintenance -Diesel engines require more maintenance than combustion turbines.This means that there is more downtime associated with each engine and more staff will be required. Diesel engines generate large amountsof NOx -in the range of 940 to over 1000 ppm vol.Even if costly,both in capital and operating cost SCR systems are applied,they cannot sufficiently reduce the NOx performance of the combustion turbines,which is in the rangeof35ppmvol.This performance is guaranteed by both GE and Alstom without an SCR system. 5.Comparison Summary 16 DF eenenaSERVIVICESINC, The lower thermal efficiency of the combustion turbine working in the simple cycle,as compared to the diesel engine,is most likely the primary reason why the CTGs have not found as wide a use in Alaska as diesel engines.Experience in other Northern countries,Sweden,Finland,and Iceland,show that combined cycle plants based on CT as prime movers are a viable technology capable of winning the market against diesel engines. Significantly lower weight makes them easier to transport and install at remote sites in Alaska.Both Chugach Electric Association and Anchorage Municipal Light and Power,the two major generating utilities in Alaska, generate their power using combined cycle generation. Experience shows that diesel engines require continuous supervision by mechanics and operators,whereas,combustion turbines can work with only once-a-week supervision. Nevertheless,diesel engine driven Power Plants are the most popular means of generating electricity in the remote locations of Alaska,primarily due to general familiarity with the diesel engine and very high reliability. D.The Power Generation system with CT drive consists of (see block diagram on next page,Figure 3): 1. 2. _Three combustion turbine-generator assemblies One dual-pressure-level,heat recovery steam generator with the option of being duct-fired (HRSG) One induction/condensing steam turbine-generator with condenser and cooling tower with saturated steam extraction for the district heating system Advanced distributed control system (DCS)with the capability of operating peripheral balance of plant (BOP)systems. Related ducting and piping including required valves,dampers and actuation equipment Figure 3,Block diagram of the Combustion Turbine -driven Modular Power Plant 17 PRECISION EMERGY ; 'SERVICES INC. aciscy i He -_AUXILLARY ||a greens tee ome ner oe seen a ae;3 DEMIN WATER ii cnn TS]rt DEMIN WATER a -e Pye porte ene738.Po ny i 2 |CHEMICAL TREATMENTii!Pieat]PR be we mee eex:PEN ieig!8 |:CTG (STAND-BY)haa |i |CHEMICAL TREATMENT Oey 'Le ne 1 7 pe ne al[S|:|FEEDWATER totes |AUXILLARY i |e WwWiPig!Tie 'COMPRESSORAIR,@,Q [6|i =8 brcrmee oF wn soucnanee om om ioomnctont wo a samt a {oi - 3 nee woe ae m4aee7[|g! :cts re °-alert H HRSG SKID CEMS)ppm ermipheeeeoooeeeisTG 7 QiIa|i 2|-s Lo |T°18-S oe an:9. The combustion turbine-based plant is a 2-on-1 non-reheat combined-cycle Power Plant designed to generate the required electrical power with one train (CT and HRSG)out of service.The normal plant operating configuration will consist of two combustion turbine generators,(CTG),one dual-pressure-level,heat recovery steam generator with the option of being duct-fired (HRSG),one induction/condensing steam turbine-generator (STG). The design fuel is #2 diesel fuel oil (DF2)with the pour point suppressed to -15°F (See attached specifications).All major components are modularized to the maximum extent possible for quick erection and commissioningwhile still being transportable. For the purposes of further discussions,the Alstom Power Model GTX-100 combustion turbine-generator system will be used.Information on GE LM6000 combustion turbine and auxiliary systems will be provided to stress the differences,advantages and disadvantages. Each combustion turbine will be fitted with a generator driven directly by the turbine's shaft through a gear reducer.Exhaust gases from each CT are directed via a collector duct to one HRSG for steam generation.The turbine exhaust gases can be discharged via a diverter damper to the atmosphere;this in case the steam turbine cannot receive the full design flow of steam or the STG and/or HRSG require shutting down,for instance for maintenance. Steam generation is as follows: 18 PRECISION ENERGY SERVICES INC. Table 5 The Alstom HRSG with GTX100 will generate HP steam |up to 234,000 Ib/hr |at 1150 psia,950°F LP steam |up to 19,200 lb/hr at 134 psia,407°F The GE HRSG with LM6000 will generate HP steam |up to 205,000 Ib/hr |at 615 psia,750°FLPsteam|Not included In the Alstom proposed system the generated steam is routed to a double steam turbine, which drives generator.The high-pressure steam supplies the HP turbine,and the low- pressure steam supplies the LP turbine.Up to 165,000 lb/hr (in winter)of steam is extracted for district heating.The HRSG has also a supplementary liquid fuel -fired duct burner section,with which the steam output will be increased if the DH demand increases above available. The Power Plant in Bethel is designed with the flexibility to operate in 2 modes: Normal:2 GTX100 or LM6000 combustion turbine generators +1 HRSG +1 Steam 'turbine generator to achieve nominal output with one stand-by GTX100/LM6000 system. Emergency:When the steam turbine is unavailable due to repair/maintenance all three GTX100/LM600 machines can operate in simple cycle configuration to achieve the nominal output. In the arrangement for the Crooked Creek location,two GTX100 or LM6000 turbines will provide the required power output.To obtain a high thermal efficiency the system will also include an HRSG and STG,however,the output of the HRSG will be lower due to marginal _demand for local heating. At both plant locations,for heating purposes in emergency situation,a stand-by,fuel oil fired boiler will be included. A detailed description of Alstom's GTX-100 and GE's LM6000 is provided in the attached literature. Comparison of GTX100 supplied by Alstom Power and LM6000 supplied by GE Power Systems Technical information about the two combustion turbines is provided in the attached Alstom _and GE literature., The turbines are comparable in size -the rated Alstom CT output is 42 to 43 MWe,the equivalent output of GE's LM6000 is 46.5 MWe., The net heat rates in Btu/kWh generated differ somewhat: -GTX100 7,683 Btu/kWh (at LHV), 19 PRECISIONDESSERVICESINC. .LM6000 8,323 BtwkWh (at LHV) The Alstom GTX100 machine has been engineered for the specific purpose:combined cycle power generation.The GE LM6000 machine is aero-derivative which means that the original design objective was an aircraft engine,where the weight and turbine shaft output are the predominant requirements.Ability to work in the combined cycle,was not even among the objectives during the design phase. Figure 4 GTX100 Combustion Turbine Efficiency (Heat Rate)as a function of Base Load Percentage ,Part Load Performance Combined Cycle 60 55+ 50+ 454 Efficiency,%4g -_ 354 r i +" 46 60 70 B80 So 100 Base Load Power,% At loads 73%and up the efficiency and heat rate remain practically constant. Figure 5 LM6000 Combustion Turbine Heat Rate (Efficiency)as a function of Base Load % 20 PES PRECISIONENERGY SERVICES INC.BtwkW-hr,LHVPES Alaska Project -LM6000 Performance Heat Rate vs.Power FHHHB14tritedte5PegareLperadLM6600,Liquid Fuel 45F,40%RH 500 ft.ElevationWaterInjectionto 42 ppm NOxTATETTTtrrrypytt odathby1Abedeb854=, pre RecSCenaepapenecracacrsbal a 7 a ot pa 2sf a 2 2 z -o wtSEEN As the graphs show,The LM6000 turbine reaches its highest efficiency /lowest heat rate at almost 100%of its output capability,whereas the GTX100 turbine maintains a steady heat rate /efficiency between 73%and 100%nominal capacity. The Alstom machine is built for stationary duty therefore it is heavier than the LM6000.On the other hand,the GTX100's are more efficient over a wider range of operating loads. Price wise,the LM6000 is about $680,000 ($16,000 /MWe)less expensive than the GTX100.The cost difference on 3 turbines,of $2,040,000 will be paid off by fuel savings within 6 months. Heat rate difference:(8,323 Btu/kWh (LM6000)-7,683 Btu/kWh (GTX100)=640 Btu/kWh Work-hours at 99%availability and 80%demand:24 x 365 x 99%x 80%=6938 hrs Fuel used on the heat rate difference:(A heat rate x hrs)4.44 million Btu /kWh,year Cost of fuel at $7.99 per million Btu delivered to Bethel $35.48 /kWh,year At 90 MW generation rate (power demand accounted above)$3,193,000 /year Fuel savings pay off period $2,040,000 /$3,193,000 =est.7 months and 20 days 21 PRECISION EMERY SERVICES INC. E.The Power Generation system with diesel engine drive consists of: 1.Diesel engines,including stand-by,each driving one generator 2.One intermediate pressure heat recovery steam generator,with the option of being duct-fired,for the district heating system. 3.Advanced distributed control system (DCS)with the capability of operating also peripheral,balance of plant (BOP)systems. 4.Related ducting and piping including required valves,dampers and actuation equipment The diesel-based Power Plant will include a series of engine +generator sets.The number of engines for the Bethel location is five (MAN B&W)or six (Wartsila)and,for the Crooked Creek location,four (MAN B&W)or five (Wartsila).The capacity of a single MAN B&W engine is 18,427 kW (five engines produce 92,135 MW net);the respective number for the Wartsila engine is 16,600 kW.Five Wartsila engines will not supply the required capacity for the Bethel location of 90,100 kW.Because of this,six Wartsila engines are required for base duty.Similarly,for the Crooked Creek location the number ofWartsila engines required for the base duty is higher by one in relation to that of MAN B&W engines (five versus four)., To establish the required availability of power from diesel engines,two engines will be added at each location;one as hot stand-by and one as a maintenance unit. To increase the plant's thermal efficiency a heat recovery steam generator,with or without a steam turbine,may be included.Neither MAN B&W nor Wartsila included heat recovery features in their documentation.Utilization of waste heat is included herein based on PES' own calculations and evaluations. Remark:Installation of the diesel engines will be a very difficult task.In order to increase the efficiency and reduce cost as well as the requirement for maintenance,17 to 18 MW engines should be applied.The weight of each engine is in the range of 300 tons.The engines will be supplied assembled.This requires heavy cranage and moving equipment, which might not be available for the project or difficult to operate in the Bethel or Crooked Creek conditions. F.Heat Recovery Options for the Diesel Plant 1.From exhaust gases Approximately 30%of heat supplied with the fuel leaves the engine with the exhaustgases.To obtain the numbers in Table 6 we have assumed that,due to low sulfur content (0.1 -0.2%)in the fuel,which translate into 100 to 200 ppm volume content in the exhaust,the flue gas temperature can be 235°F (with a 6°F safety margin).This allows larger heat recovery than if the sulfur content was 0.5%in the fuel (see V. Fuel Selection).The steam generated in a highly efficient HRSG can be used for 22 PES PRECISION ENERGY SERVICES INC. power generation and extraction for district heating,or it can be produced as saturated for district heating purposes only. Four engines (either MAN B&W or Wartsila)represent the case of the Crooked Creek plant location with Wartsila engines working at 88%of power demand (66.4MWevs.75.5 MWe) Table 6 shows that no matter which cogeneration method is chosen to fulfill the requirement for district heating in Bethel,both diesel-based plants will have to include,at average winter conditions,additional firing of 57 MM Btu/hr or 65 MM Btu/hr,respectively.The plant can supply district heating needs only when working at maximum capacity in mild spring or early fall conditions. Table6 Engine MAN B&W WARTSILA Number of engines 4 5 4 5 6 Heat content in exhaust MM Btv/hr 174.0 217.4 159.6 199.5 239.5 Energy available ”MM Btu/hr 128.4|160.4]120.9]151.2|181.5 Possible superheated steam |lb/hr 72,580 |90,725!63,730)79,660}95,600generation MWe generation, extraction at 120 psig MWe 1.57 1.96 1.38 1.72 2.06 Saturated,120 psig ?lb/hr 103,480 |129,360 |92,620]115,780 |138,940 )=Heat content in exhaust -(minus)heat content in flue gas at minimum allowable temperature 275°F. Superheated steam at 350 psig,550°F Production of saturated steam at 120 psig,if power generation is not required. 2.Heat recovery from lubricating oil and water jacket heat exchangers - Heat loss in cooling of lubricating oil and the engine water jacket is typical of diesel engines.The recoverable heat (above 180°F)amounts to a large percentage of the input fuel,5.9%in the lube oil cooling and 19%in the water cooling system.This amounts to a net loss equivalent to 165.4 MM Btu/hr or 1264 gallons of diesel fuel per hour;or 8.86 million gallon of fuel per year in the plant running at 80%capacity. The heat recovery challenge is related to the relatively low temperature heat energy, which excludes steam production.But this energy can be used for heating or pre- heating district heating circulating water and for local heating needs (tanks or space). After taking into account the heat from lubricating oil and water jacket heat 23 PRECISION EMERY SERVICES INC.IPE! exchangers Table 6 from the above section.From exhaust gases,can be amended as follows: The plant will operate with the basic number of engines all the time,as required by the demand.When one engine goes off line for unplanned repairs,the hot-stand-by unit is put on line within minutes and the maintenance unit is put into hot-stand-by duty,if possible. Table 7 Summary of Heat Recovery Options Engine Number of engines Exhaust heat recovery Heat content in exhaust Energy available Superheated steam generation Possible power generation in condensing cycle Available heatfrom Lube Oil &Jacket Water system to be usedfor district heating Heat required for DH average Average heat shortage Required additional steam, average Heat required for DH winter Winter heat shortage Required additional steam in winter Effective power generation,average * Effective power generation,winter ) MM Btu/hr MM Btu/hr Ib/hr MWe MM Btv/hr MM Btu/hr MM Btwhr lb/hr MM Btu/hr MM Btu/hr Ib/hr MWe MWe MAN B&W 4 5 174.0}217.4 128.4 160.4 72,580 |90,725 7.4 9.3 89.9 112.3 44.1 21.7 24,930 |12,270 87.1 64.7 49,235 |36,595 4.39 7.22 2.15 4.98 WARTSILA 4 5 159.6|199.5 120.9]151.2 63,730 |79,660 6.8 8.5 89.9}112.3 134.0 44.1 21.7 23,250}11,430 177.0 87.1 64.7 45,910|34,090 3.72 6.28 1.64 4.19 6.74 )=Heat content in exhaust -(minus)heat content in flue gas at minimum allowable temperature 275°F.2) steam in extraction cycle at 120 psig. 24 Effective power generation is the power that can be produced with the additional PRECISION ENERGY SERVICES INC. Heat Recovery Steam Generation System The Alstom HRSG will produce superheated steam,in unfired operation,at two pressure and temperature conditions:HP =1100 psia /950°F and LP =87 psia /386°F.The generated steam is routed to an arrangement of two steam turbines,which drives an electric generator through a gear.The high-pressure steam supplies the HP turbine,and the low-pressure steam supplies the LP turbine. GE proposed an unfired HRSG,single-pressure,two drum,natural circulation,top supported unit.Heat absorption surfaces will be mounted in factory-assembled modules to facilitate construction.The HRSG will produce superheated steam at 600 psig,750°F. The HRSG is also equipped with a supplementary liquid fuel -fired duct burner section. Some of the most important design features of the HRSG will include: -All tubes will be formed with extended surface arranged inline for ease of inspection, cleaning,and maintenance.In addition,access cavities will be provided betweenmodules. -The inlet ductwork will include a gas distribution system for uniform temperature and flow upon reaching the duct burners or superheater bank. »The inlet duct will include multiple layer insulation. «Two-drum design -steam and mud drums. +Modular construction with integral circulators to minimize field welding of interconnecting risers and downcomers.Modular construction also allows factory hydrostatic testing to assure ease of installation. =Maximized module size to reduce foundation cost and area requirements. -The HRSG will be top-supported to minimize upper drum movement and eliminateexpansionjointsinthecasingaroundtheupperdrum.Top support also simplifies upper_drum interconnecting piping. The HRSG is designed and fabricated in modules with modularized steam and water piping to simplify shipping and assembly in Bethel. The diesel powered plant (see Table 7)will include a heat recovery steam generator to generate superheated steam at 350 psig,550°F,a portion of which will be used for additional power generation and a portion will be used for providing heat for the district heating system.The unit will be constructed similar to the HRSG described in Section VI. At the Crooked Creek location,the entire superheated steam will be used for power generation in a condensing cycle. 25. PRECISION ENERGY SERVICES INC. A separate heat exchange system will recover heat from the lubrication oil (LO)cooling system and jacket water (JW)cooling system.This heat recovery system will be minimal at the Crooked Creek location and will provide the marginal amount of heat required for plant space heating,fuel heating and local community heating. H.Steam Turbine Module Factory assembled,complete with steam inlet valves and servo motors,piping, instrumentation and wiring to junction boxes. Exhaust direction:Axial Exhaust hood spray system Including: =Speed reduction gear;factory assembled,complete with instrumentation and wiring to junction boxes,quill shafts between turbine and gear and between gear and generator and electric turning gear +Steam admission and extraction -Main steam inlet with Emergency stop valve(s),hydraulic operated with integrated steam strainer Control valve(s),hydraulic operated Steam Inlet Pipes,downstream ESV -Induction steam inlet 1,with hydraulic operated Emergency Stop Valve,Steam Strainer and hydraulically operated control valve, «Gland steam system with interconnecting piping,gland steam system unit -assembled module,complete with instrumentation and wiring to junction boxes. «Lubrication Oil System with factory assembled,complete with piping,instrumentation and wiring to junction boxes lube oil supply unit,including: -Lube oil reservoir -Main oil pumpAC motor driven -Stand-by oil pump AC motor driven -Emergency oil pump DC motor driven -Hydraulically driven emergency coast-down oil pump -Oil Coolers (2 x 100%)with water cooled plate heat exchangers,provided with non-interupting switch-over valves _ -Duplex oil filters,provided with non-interupting switch-over valves -Oil temperature control valve -Oil vapour exhaust fan and demister -Oil heaters -Jacking oil pump 26 PRECISION BRERSY SERVICES INC. -Oil dehydration unit =Hydraulic Oil System And other support systems and equipment required for efficient operation of the turbine.The system also includes insulation consisting of: »Noise enclosure over turbine,gear and generator to reduce noise to less than 85 dB(A) at 1 m G3 ft)distance »Rain shelters for oil units and auxiliary systems «Turbine casing heat insulation I.Steam Condensing (cooling)System including «Tubular steam condenser that condenses steam at 1.5 inches of Hg column «Cooling tower with basin and foundation «Condensate circulating pumps,each with 100%of total circulation capacity -Settling pond with appropraite piping =Condensate Polishing Plant Water for the cooling towers will either be drawn from wells or the river.As an alternative to cooling towers,the cooling system may consist of once through water cooling from a nearby pond in Bethel.Although the once-through cooling system is attractive from the cost and operation point of view,it may have environmental drawbacks,which will need to be addressed in any environmental report.A once through cooling system could reduce construction costs and lessen plant parasitic power. A packaged water tube -type boiler,diesel fired,will be installed for use during startup and to provide steam,in the event that all the three CTGs are not available for service to provide freeze protection,building heating and district heating system.The boiler can also be used to supplement the district heating system J.Electric Generation System,consisting of: .Three medium-voltage three-phase synchronous generators,each driven by 'the 2 active and one stand-by combustion turbines,13.8 kV,60 Hz .One three-phase synchronous generator driven by the steam turbine,also 13.8 kV,60 Hz. .Generator neutral earthing equipment .Medium-voltage switchgear with all feeders and coupling panels K.Feedwater System 27 PES PRECISION EVERGY SERVICES INC. 1.Feedwater Pumps The system includes two 75%capacity feedwater pumps,which deliver deaerated feedwater from the deaerator through the condensate heater and economizer to the boiler drum.The pumps are provided with minimumflow re-circulation controlled by a system of diaphragm actuated flow control valves.A main flow control valve will maintain the proper water level in the steam drum.The pumps will be capable of delivering feedwater to the HRSG at a pressure at least 3%above the highest safety valve setting on the HRSG,as required by the ASME code.The pumps will be horizontal multi-stage centrifugal type.One pump will have a dual drive including electric motor and steam turbine;the latter will be used at system start-up and to maintain,for safety purposes,water flow to the steam drum in case of total plant blackout. 2.Demineralizing System Two (2)100%makeup water demineralizer systems with capacity of 50 USgpm each will be provided.The systems will include 100,000-gallon makeup water storage tank from where makeup is pumped to the deaerator.The system will also provide,if required,water for injection in the CTG to control NOx emissions. 3.Phosphate Feed System Phosphate feed to the HRSG steam drum will be controlled to maintain the desired phosphate residual and alkalinity in the boiler water. 4.Organic Feed System will be introduced to the deaerator to maintain the desired specific conductance in the condensate. 5.Oxygen Scavenger Feed System includes chemical feed into the deaerator to remove dissolved oxygen in the condensate. Instrumentation and Controls including the DCS System 1,The Plant DCS System The combustion turbine generators and steam turbine are controlled through an advanced distributed control system (DCS)consisting of an ABB Advant DCS equipment package.The Advant system is designed to provide automated start-up and shutdown of the CTGs and the STG from the control room.The DCS provides supervisory oversight,monitoring,and set point regulation for local controls devices.The supervisory function allows operation of major plant processes and equipment from the local contro!room.Processing units function independently,however,the exchange of signals across the communications network for controls purposes is avoided wherever possible. 28 IPE!PRECISION ENERGY SERVICES INC. Controls for the District Heating system and the BOP systems will be also integrated into the DCS system.The main functions of the DH system to be integrated into the DCS system are: Steam supply to the Central Heat Exchange Station based on ambient conditions and demand signals from local heat exchange stations. -System circulating water parameters,and so on. The system will allow a large degree of independence of the DH system within the framework of the Power Plant operation requirements. The Control Philosophy will be designed to the needs of the Modular Plant. 2.Process Controls Major plant systems to be controlled and monitored include: a.Combustion Turbine/Generator System b.Heat Recovery Steam Generator Systemc.Steam Turbine Generator Systemd.Condensate,Feedwater and Demineralizer System e.District Heating Systems 3..Combustion Turbine Generator Systems Each combustion turbine generator is supplied with a dedicated microprocessor -based control system.It contains the unit metering,protective relaying and controlswitches. The control system provides control functions including:fuel,air and emissions control;sequencing of turbine fuel and auxiliaries for start-up,shutdown and cooldown;monitoring of turbine control and auxiliary functions;protection againstunsafeandadverseoperatingconditions. The plant control system will interface with the combustion turbine control systemthroughadatalink. The CTG is designed for a "pushbutton”start locally or from the control room.Itsoperationisfullyautomatic.The remote control from the control room is accomplished from the plant control system CRTs via a digital link from the CTGcontrolsystem.The plant control system logs analog and digital data.UnderabnormalconditionstheCTGoutputmaybeloweredforshortdurationsduringthattime,the units will operate at a lower efficiency. 4,Steam Turbine Generator: The STG will be supplied with standard stand-alone control system handling all 29 PES PRECISION ENERGY SERVICES INC. closed and open loop turbine controls.The control system will include: Woodward Governor 505E based turbine loop controls Allen Bradley PLC module for turbine safety trip functions Allen Bradley PLC for turbine auxiliary control .Generator AVR Generator protection relays and synchronizing equipment.eneop5.Heat Recovery Steam Generator System Control of the HRSG will consist of the following loops integrated into the plantDCSsystemtosafelyandefficientlymaintainsteamheaderandfeedwaterpressuretomatchturbine-generator requirements during start-up,normal operation,upsets, and shutdowns The HRSG control system will be comprised of the following subsystems: HRSG Drum Level Control System Steam Temperature ControlPlantServiceSteamTemperature Control Deaerator Level ControlBoOP 6.HRSG Drum Level Control System The HRSG drum level control system will be a conventional three-element control system using main steam flow as the feed-forward signal;drum level and feedwaterflowasthefeedbacksignals.Based on demand,the system controls a feedwatercontrolvalvetoadjusttheflowtotheboiler.The system is designed to operate onsingleelementcontrolusingdrumlevelonlyduringstart-up. 7.Main Steam Temperature Control System The purpose of this system is to maintain the final superheater outlet temperature at amanuallysetvaluewithminimumfluctuation.This is a single station,Cascade-typecontrolsysteminwhichthefinalsuperheateroutletcontrolunitservesasthemasterorprimarycontrolunitandthedesuperheateroutletcontrolunitservesastheslaveorsecondarycontrolunit. 8.Plant Service Steam Temperature and Control Steam header temperature will be controlled through a desuperheater with atemperaturecontrollerthatwillregulatefeedwaterflowtomaintaintemperature. 9.Deaerator Level Control System The deaerator level will be controlled from the control room.If the level is low, make-up will be admitted from the demineralized water storage tank.Overflow willbedischargedtothecondensatetank.Level switches will be provided to alarm highandlowlevelsandtotripthefeedwaterpumpsonlow-low level. 10. Feedwater System 30 PES PRECISION ENERGY SERVICES INC. Boiler Feedwater systems will be provided with pump minimum flow control,which is furnished by the pump manufacturer.This normally consists of an automatic recirculation control valve,which will circulate water back to the deaerator during periods of low HRSG feedwater demand. 11.Demineralizers The Demineralizer system will be equipped with a programmable controller (PLC). The water conductivity will be monitored in the control room. 12.Plant Monitoring System All required plant parameters would be monitored and indicated,alarmed and/or recorded in the control room to facilitate the plant operator with control of the plant. The gas turbine will be interfaced to the plant control system for monitoring and trending. Local indicating devices,pressure gauges,thermometers,etc.,will be furnished for local monitoring of selected plant parameters.Grab sample ports will be provided on the condensate,feedwater and main steam lines for periodic analysis for other contaminants.Sample coolers,as required,will be provided. District Heating System 1.Bethel The Power Plant located in Bethel will include a district heating system,which will meet the diverse thermal energy needs of Bethel's residential,institutional, commercial and industrial customers.For the Crooked Creek location,it's proposed to include a small system for heating the local housing. Based on the heating oil usage records and projected city and surroundings growth, we estimate that Bethel will require the following heat supply: «=Summer supply:127 million Btu/hr averaged over for May -August =Winter supply:177 million Btu/hr averaged over January &December =Maximum winter supply:230 million Btu/hr for about -40°F «Yearly average supply:134 million Btu/br Since the numbers represent monthly averages,the actual minimums and maximums may differ significantly from the given amounts.It is planned that during a 2 to 3 week period in July or August,the system will be shut down for maintenance.The maximum winter demand of 230 million Btw/hr is estimated based on recorded low temperatures. The system has been engineered so that every reasonably accessible building in Bethel can be supplied with heat and hot water.This includes all residential housing, 31 PES PRECISION SERVICES INC. schools,the community college buildings,government buildings,city buildings,the hospital,the prison,the airport,and local businesses.The system can also provide heat to an existing or new swimming pool for the general population of Bethel. The development of the Bethel Power Plant will include the construction of trunk pipelines (see drawing BT20089-00-000-001)for supplying heat to one Central Heat Exchange Station.From there one main trunk line will serve the airport and one will serve the City.The pipeline to the City will branch out to the North and East.It is assumed that smaller distribution lines for buildings or groups of buildings will be constructed by the City or by private enterprise. Heating buildings is accomplished by hot water produced during electricity production and then piped to receivers around whole districts.Providing both heat and hot water is an extremely efficient use of fuel and demands co-ordination of energy supply with local physical planning.There are over 30,000 district heating systems in the USA.Hot water district heating meets the thermal energy needs of residential,commercial and industrial users from the same distribution line. In the combustion turbine driven MPP,applying waste heat to district heating allows increasing the thermal efficiency of the plant to as high as 83 or 84%.In the diesel engine driven MPP,the thermal efficiency can be as high as 69%. The Bethel district heating system will be based on using hot water instead of steam as the thermal energy carrier.Older district heating systems use steam for this purpose,however,there has been a general movement towards using hot water, which is recommended by the International Energy Agency -an international body with headquarters located in Europe that promotes energy efficiency by using district heating and heat pumps.The advantages of water heating over steam heating are several,the most important of which are: a.Safety.Water is used in district heating systems with temperatures in the range of 170 -194°F (77 -90°C),which is sufficiently below the water boiling temperature.A leak in the piping,whether outside or inside the heated space,will not result in rapid conversion of water to steam,which prevents the possibility of scalding or a steam explosion. b.At working pressures the volume of steam is 180 times larger than the volume of the same mass of water.This means that water requires smaller diameter piping and valves,as well as smaller size pumping and heat exchange equipment.Smaller diameter piping results in lower overall heat losses;hot water systems lose only a maximum of 10%of their energy before it is delivered to the desired location, whereas same duty steam -based systems lose as much as 30%of their energy to ambient air. 32 PES PRECISION EREREY SERVICES iNc. Due to safety considerations,pressurized steam systems must be built according to the ASME Code;as a result,they are significantly more expensive in both capital and operating cost terms.Steam systems are also more expensive due to larger pipe sizing and the requirement for higher horsepower of drives for pumping equipment.The maintenance cost of steam-based systems is also significantly higher than that of water-based systems. System Specifics a.Pipes &Pumps Sizing pipe for the district heating system was determined by the estimated heat usage of the Bethel community.The heat capacity of the Bethel district heating system was based on the average heating oil usage,accounting for 20%growth over 10 years.We estimated a heat delivery rate of 177 MM Btu/hr average load in winter,with a maximum momentary winter load of 230 MM Btu/hr.The heat load also accounts for utility hot water usage. Heating water delivery rate is based on the heat demand and the temperature difference between the delivery and return lines.At a AT.of 65°F the required pipe size to avoid incurring excessive pumping costs while balancing capital costs is 16”pipe.The attached Tables DH!and DH2 show calculation of the relative capital costs and yearly pumping costs based on heat demand.Calculated costs are for pipe sizes ranging from 10 inch to 24inch. For supplying pipe we have contacted several manufacturers that are familiar with district heating pipe.Prices for the pipe ranged from $25 per linear foot for 10-inch pipe to $83.00 per linear foot for 24-inch pipe. The pump size needed was also determined using the table DH1.The 16-inch -pipe seems to be the most economic.The required horsepower at 177 MM 'Btu/hr is 531 HP and 757 HP for 230 MM Btu/hr.This gave us the generalpumpsizeandrequiredoperatingenergy. b.Heat Exchangers The District Heating system will include main heat exchangers where the district heating water is heated with heat supplied from the Power Plant.The size of the heat exchanger was determined by the average winter heat rate of 177 MM Btu/hr.However,the system will have sufficient capacity to allow for heating demands during extreme low temperatures.The heat exchanger is a condensing type to make use of the latent heat of vaporization. After the main exchange station at the Power Plant,there will be several local exchange stations to deliver heat to individual or groups of houses.These 33 PES PRECISION ENERGY SERVICES INC. stations will have heat exchangers that transfer the heat to a lower pressure loop that delivers hot water below 15psi.The reason for the low-pressure loop is to meet the 15psi limit for ASME building codes.The size of the intermediate heat exchangers will be determined by the heat requirements of the surrounding structures. Using water directly from the District heating system should be avoided to 'prevent contamination of the water in the main trunk lines,and to extend the life of the system.Contaminated water increases maintenance costs and causes premature failure in the main distribution lines.Also,the pressure for delivery water needs to be kept low for safety reasons.Since the delivery pressure in the main lines will be above 70psi,an intermediate loop will allow the pressure to be dropped to a reasonable level for safety. At the final delivery point,radiant heaters will be installed in individual buildings for heating.These heaters will run off the intermediate exchangers that are linked to the main trunk lines.In some cases,forced air heating unitscanberetrofittedfordistrictheating. c.Backup System For the modular Power Plants,we will include a stand-by package oil-fired boiler used to supply heat for district heating.This boiler will only be operated when the plant is down for maintenance. 3.System Installation The scope of the feasibility study only covers the basics of main trunk piping, primary heat exchangers at the power plant and exchange stations.A more thorough investigation will be needed to obtain a better knowledge of the customer base and the engineering specifics of a complete district heating system. _The overall capital equipment cost includes the main trunk lines,the delivery pumps and the primary heat exchangers at the power plant and exchange stations. The install costs for a district heating system will be significant,as several miles of main trunk lines will have to be laid.With our current information,we estimate that laying the main trunk line,installing the central exchange station,and insulating pipe joints will take about 40,000 man-hours.Additional residence and hookup costs will depend on the size and demand on the district heating system. .The only needed regular maintenance for the district heating system will be on the primary feed pumps and heat exchangers at the Power Plant.Main trunk lines for district heating will have to be inspected yearly,as will intermediate heat exchangers. 4,Crooked Creek 34 RES N. The Environment Protection System of the combustion turbine-driven Modular Power Plant PRECISION ENERGY SERVICES INC. Because of the low population density and distances between houses,the cost of connecting to the system will be extremely high and was not investigated as part of this study. Environment Protection System is simple and requires little or none controlling systems to maintain highest performance in Alaska.The Modular Plant will not generate emissions above the best performance of other type power plants.As a matter of fact,the factual emissions will comply with the BACT philosophy (best available control technology).It will generate practically no hazardous liquid or solid waste. 1.Emissions to the Ambient Air Alstom Power as well as GE Power are ready to guarantee emissions.The following table is the performance guarantee issued by Alstom Power. GTX100 AEV Bumer System Load 50-100 %Fuel Fuel Diesel No 2 NOx ppm vol at 15%O2 35 35 25 Co ppm vol at 15%O2 5 5 5 UHC ppm vol at 15%O2 5 5 5 VOC ppm vol at 15%O2 4 4 4 PM10 mg/Nm®8 8 8 SO2 ppm vol at 15%O2 <200 .<200 <200 UHC -Unburned hydrocarbons;components are measured as C3Hg VOC -Non-methane,Volatile organic compounds;components are measured as C3Heg Ambient conditions: -Barometric pressure 950 -1050 mbar /13.7 -15.2 psia -Ambient temperature -35 --+50 C /-31 -122°F -Relative humidity 0-100% GE Power Systems'stated performance is as follows: NOx ppmdv 42 NOx -Ib/hr 53 CO ppmdv 6 CO lb/hr 5 HC ppmdv 2 35 RES PRECISION BMERaY SERVICES INC. HC Ib/hr 1 SO.ppm <200 The GE values are based on dry volume (commonly used in the USA),whereas Alstom is based on total volume (commonly used in Europe).The values arecomparable;practically the same. Neither NOx nor CO emissions need to be controlled.For comparison,the performance of diesel engines installed in Alaska without tail-end gas treatment systems is in the range of 900 to 1000 ppm vol.Diesel engines even with a tail end control system -Selective Catalytic Reduction (SCR)do not perform as well as the combustion turbines. Sulfur dioxide (SO2)emissions depend entirely on the sulfur content in the fuel to be used in the Plant.The selected fuel (DF2 supplied by Tesoro)has an average measured sulfur content of 0.1%-one fifth of the permitted value. Particulate matter is produced from the incomplete combustion of fuels,additives in fuels and lubricants,and worn material that accumulates in the engine lubricant. These additives and worn materials also contain trace amounts of various metals and their compounds,which may be released as exhaust emissions. As the Alstom performance guarantee shows,the PM emissions from a GTX100turbineisintherangeof8mg/Nm'.The most stringent PM emission standards (forhazardouswasteincineration)set the limit at 25 mg/Nm3 (for Environment Canada Standard).. 2.Liquid and Solid Waste The plant produces negligible amounts of liquid or solid waste: -Blow down water from the HRSG at the estimated rate of 420 gallons per hour. This stream can be normally discharged to the sewer system,settling pond or can be recirculated back into the make-up water demineralization system. -Blow down (bleed rate)from the cooling tower circulating cooling water at the - estimated rate of 10,000 gallons per hour.This stream is also not hazardous -it has a higher concentration of minerals in the water;it can be normally discharged to the sewer system or to a settling pond.Normally treatment of this stream is not required. -The plant will generate a very small amount of filtrate from filtering fuel beforeinjectingtothecombustionchamber.This waste will be placedin containers for disposal at a local landfill or for shipping to the mainland. 36 RES PRECISION ERERGY SERVICES INC. -Other waste generated at the plant will be sewage and average municipal garbage.Which will be disposed of at the City of Bethel disposal facilities. 3.Noise prediction Both Alstom and GE Power Systems guarantee low noise from their turbines.Below a short noise prediction has been performed by Alstom for a typical energy park plant. Sound pressure levels in dB(A)have been calculated for receiver points at 1000,1500 and 2000 feet's distance from plant center.A grid noise map showing the predicted sound pressure levels over the surrounding area has also been calculated. For the predictions,Soundplan 5.6 for Windows was used.The calculations in Soundplan are made by the "General Nordic prediction method”. -The acoustic model consists of all main buildings and major noise sources,which means that different screening effects are taken into account.The noise emission data_(sound power level dB relative to 107?W)is introduced. In this prediction the values of the sound power levels from the noise sources is standard values.Often there is a specific noise limit mentioned in the contract.From the limit an acoustical design of the plant regarding different silencers and less noisy equipment is performed.In the typical prediction,the values of the sound power levels from the noise sources are standard values.Therefore it is possible to reduce the sound pressure levels in the receiver points if the customer presents any particular noise limits. The results of the prediction can be seen in Table 8 below.All values are A-weightedsoundpressurelevelsrelativeto20°Pa. The following page showsa picture of the average decibel ratings of some activities. Figure 6 Typical Noise Levels 37 PRECISION SERVICES INC.PES "so00 10000 | bas 711THRESHOLDOF PA Wty eee mit 2 MOY: oO)-:1, oa7RLtH)BP.aA a.6Bund maud Bag ora pies a hots apultheseat and Table 8 Predicted sound pressure levels in dB(A) 38 PRECISION EMERGY SERVICES INC. Receiver No:|Sound pressure level dB(A) 1 (1000 Ft)52 4 (1000 Ft)49 5 (1500 Ft)47 2 (1000 Ft)47 3 (1000 Ft)47 8 (1500 Ft)45 9 (2000 Ft)44 6 (1500 Ft)44 7 (1500 Ft)43 12 (2000 Ft)42 10 (2000 Ft)41 11 (2000 Ft)40 As the noise grid map and the above table show,the plant will not be heard in Bethel and the airport. 39 OrLength scale 1:650 950 200 BING 2s B00 1208 :Sound=\oe!-pressure level.Lin HA ere Sid(V)aP[2A]oimssoidpunospayoiporg"demsstoupuHeyAgNOISIDZ4dDAISIOIATIS RES PRECISION ENERBY SERVICES INC. Balance of Plant Systems and installations include: "Compressed Air System,. .Auxiliary Boiler .Plant Utilities .Buildings and other Enclosures .Maintenance Division .Plant Waste Management described in Section Environment Protection System The Compressed Air System will provide air for actuation of various control valves and for power tools.It consists of: .Compressor,120 psig,air cooled,with electric motor .Starting air receiver,working pressure 110 psig .Condensate collector for compressor and starting air vessel :All necessary piping 2.Auxiliary Boiler Diesel fuel and used lube oil -fired boiler working in standby duty.The boiler is used during plant start up for steam line blowing and to provide heating of the fuel and plant. During normal operations of the Plant,the boiler will be used sporadically during periods with very low ambient temperatures,when the heat recovery system cannot provide sufficient heat for space heating and the district heating system. The paged,water-tube boiler will be equipped with all necessary controls and instrumentation. 3.Fire Protection System: The fire protection systems will include redundant water pumps including a diesel engine -driven unit.The 100,000-gallon raw water storage tank will serve as a source of fire-fighting water.As an alternative,water from the cooling pond or make-up water well will be used.Appropriate detection,alarms will be included in strategic locations and system actuation will be automatic when and where necessary. For the main electric systems,automatic release halon extinguishers will be used: .Control Room electric and electronic equipment *Distributed Control and Supervisory system processor .Motor Control Centers .Turbine /Engine monitoring and control system 41 PES PRECISION ENERGY SERVICES INC. .Station service transformer 13.8 kV /4160 V 60 Hz .Low-voltage distribution for auxiliary drives .DC supply system for monitoring and control systems .All other electrical equipment and installations requiring protection 4.Plant Utilities Plant utilities include: 5. Water system for other than process uses -drinking and sanitary water and supply to the fire-fighting system.The utility water system is closely correlated with the process water system. Electric utility system -lighting,Maintenance Shop power,various non- process alarms and operation of the fire protection system.For the last function the system will be connected to the alternative UPS (Un-interrupted Power Supply)system.The system is closely correlated with the electric system for the process. Compressed air -described above Sewage and spill collection system will collect and deliver sewage and spills to a tank,which will be services by the City of Bethel or a local contractor. The HVAC system will be provided for the control room and electrical room and the maintenance shop only.The electrical room will be ventilated and cooled to maintain less than 85°F temperature.Control rooms will be maintained at 68°F.Introduction of outside ambient air was assumed sufficient for this purpose,i.e.;no mechanical cooling equipment is necessary.The rooms will be heated with hot water,as required for operator's comfort.The process buildings will be heated sufficiently by the process equipment;for ventilation,fans will be installed where required. Civil Works,Buildings and other Enclosures To minimize the cost and promote modularization all equipment of the Modular Power Plant will be housed in modular structures that will allow easy access to the equipment and also relocation of the plant.The structures will thermally and sound insulated as needed.Control Room,office and utility space will also be provided in modular units. 42 PRECISION ERERGY SERVICES INC. As aresult of such development,the civil works will be simplified and will include only necessary works and structures such as: .Site preparation,earthworks .Limited piling and foundations for placing the modules .Tank farm Geotextile lining,thermal protection of the Permafrost with Thermo Siphon .Simplified tank foundations .Tanks and other tank farm related works For a listing and specification of site development,earthworks,foundations and tank farm please see the attached Conceptual Design Report by LCMF LLC of Anchorage,Alaska. 6.Maintenance Shop Due to the limited capabilities for local fabrication and repair,the plant will include a reasonably sized maintenance facility.This facility will be able to service both basic plant equipment and the rolling stock on the premises.See attachment Maintenance and Repair Shops. 43 PRECISION nee!'SERVICES INC. VII.RELIABILITY AND AVAILABILITY STUDY A.Introduction The Feasibility Study of the MPP to be located in Bethel or Crooked Creek,Alaska,includes as an important section,Determination of the Plant's Predicted Availability and Reliability. Reliability is defined as the probability that an item (component,equipment,system or even an entire plant)will operate without failure for a stated period under specified conditions. Availability is defined as the fraction of the total time that a device or system is able to perform its required function.The availability can be expressed as a fraction (or percentage) as follows: MITFAvailabilityA=--;MTTF +MTTR Where: MTTF =mean time to failure (mean time the items is working or available to do the work) MTTR =mean time to repair. MTTR+MTTF =total time Reliability is represented by:R =eee : Where: TT =total time in the period UPOT =unplanned outage time _ The reliability quotient includes planned outage (for instance,for planned maintenance or plant vacation shut down)in the time the system is ready to work.Only unplanned outages reduce the reliability factor. 44 PRECISION SERVICES INC. B.Basis of High Availability and Reliability Plant operating availability and reliability depends on the following major areas: .Engineering &Construction .System/Equipment Redundancy .Equipment and Manufacturers .Maintainability and Operability .Operating &Maintenance Practices .Safety 1.Engineering &Construction Desired plant availability and reliability starts at the drafting table and engagement of the design company of the project from the very beginning.This is done through contracting with a reputable engineering and construction company that have the characteristics outlined below.The desirable situation would be a construction company with a strong engineering division specialized in power generation projects. The characteristics of desirable engineering and construction contractors: .Extensive and recent experience on similar or comparable projects .Excellent track record and client references .High caliber staff of professional engineers and managers .Good Quality Assurance Program based on company's own experience .Use of good engineering and design practices including; constructability,operability,maintainability,and adherence to safety 2.System /Equipment Design and Redundancy System/Equipment Design and Redundancy should provide for most efficient and reliable technology and layout,as well as for sufficient redundancy.One important ingredient of an efficient system is that it is based on equipment design that has been used extensively and successfully in similar applications with as much redundancy as practical. .Systems or equipment,by their nature of service,require frequent maintenance or whose loss would cause unit or plant outage should be designed with inherent redundancy. .Use of system and equipment designs that have been applied and proven in similar applications exhibiting high availability and reliability ; , , 45 IPE! 4. 5. PRECISION ENERGY "SERVICES INC. 3.Equipment and Manufacturers The objective here is to procure reliable equipment and to shorten downtime with the availability of Service Representatives and proximity of service shops. Procure equipment from leading and quality manufacturers that have excellent track record in the industry or similar applications Proximity and responsiveness of manufacturer's Service Representatives when called to assist Proximity of manufacturer's repair or overhaul shop Maintainability and Operability The objective of plant maintainability and operability is to minimize the complexity and time required for maintenance and to operate the plant with minimum number of operator surveillance.This is generally accomplished by the following: Using equipment having features of low maintenance design Equipment designed to be maintained in-place with minimum disassembly and minimum usage of temporary scaffolding/rigging and handling tools. Installation of permanent maintenance platforms where required Accessibility and adequate space around equipment Permanent cranes and hoists where practical Environmental protection where necessary Equipment and system design selections based on minimizing operator attention Automatic startup and shutdown operation Manual intervention features of automatic processes Equipment capacity selection to provide maximum turndown,as may be required . Monitoring of systems and equipment to provide operators information for safety and indications for required maintenance Remotely located control panels properly positioned for operator's visual and physical access in the control room Local control panels properly positioned for operator's visual and physical access Adequate lighting,ventilation and acoustic softening on operational areas Accessible valves,switches and other instruments Operating &Maintenance Practices Perhaps this is the most significant factor affecting the reliability and availability of a plant.The objective here is to minimize unscheduled shutdowns of the plant by well planned operating and maintenance procedures or practices.Some of the 46 PRECISION ENERGY SERVICES INC. elements of good O&M practices are: 6. .Having operating staff with the right training and educational credentials .Concise,easy to follow maintenance and operating procedures' .Diligent monitoring and trending the systems and equipment performance :Preventive maintenance as recommended by equipment manufacturers :Adequate spare parts inventory .Membership in a spare engine pool =Good housekeeping practices Safety Prevention of accidents and resultant injuries contribute significantly to plant availability and reliability.Here are some key OSHA items to consider: .Any hazardous materials should be stored and handled as required by ,applicable codes and standards .Rotating equipment shall be provided with appropriate guards against accidental direct contact by operators and dropped tools that could ricochet to cause injuries or damage to sensitive equipment, instruments and devices. .Surfaces that are warmer than 120°F that are accessible to operators during routine maintenance and inspection procedures should be insulated. .Comfortable working environment .Operators free of prohibited drugs and alcohol .Adequate lighting and ventilation .Good housekeeping practices C.Objectives of the Study Phase 1. 1. 2. 3. Phase 2. Concept and Definition/Design and Development Identify major contributors to risk and significant factors involved; Provide input to the design process and to assess the adequacy of overall design; Provide input to the assessment of the acceptability of proposed potentially hazardous facilities or activities; Provide information to assist in developing procedures for normal and emergency conditions; Evaluate risk with respect to regulatory and other requirements. Construction,Production,Operation and Maintenance 47 PES PRECISION ENERGY SERVICES INC. 1.Monitor and evaluate experience for the purpose of comparing actual performance with relevant requirements; Provide input to the optimization of normal and emergency procedures; Update information on major contributors to risk and influencing factors; Provide information on plant risk status for operational decision-making; Evaluate the effects of changes in organizational structure,operational practices and procedures,and plant and equipment.wPwWhThe project is at the first phase,Concept,Project Definition,Development Decision; therefore,the study will concentrate on the predicted reliability and availability of the Power Plant from the standpoint of Project Concept,Input Design Specifications and Preliminary Selection of Equipment and Systems. D.Scope Definition Objectives: .To define the system being analyzed; .Describe the main concerns that originated the risk analysis; .State assumptions and constraints governing the analysis; .Identify the decisions that have to be made,criteria for these decisions, and the decision-makers; 1.Definition Of The System Summary Nuvista Light and Power is planning to construct and operate a new power plant in Western Alaska.The Plant will supply electric power to the Placer Dome's Donlin Mine,to the City of Bethel and the neighboring villages and will supply steam and hot water to a district heating system for the City of Bethel.The subject of this Reliability Study is the MPP option in which combustion turbines or diesel engines would be applied for power and heat generation working in the combined cycle. Plant Description For specifics of the Plant please refer to Section VI.The plant will be sited to the south west of the City of Bethel at an area sized at approximately 80 acres.The site is in the proximity of the Kuskokwim River.The site sub-surface conditions are silty ground on top of not fully stable Permafrost -the average temperature of the frozen ground is slightly below water freezing,around 30°F -31.5°F.Soil geotechnical conditions are generally known for preliminary design of foundations and support structures;however,more testing and evaluation is required to avoid errors in foundation design. 48 IPE icicleERLESERVICESINC. An alternative location for the plant is Crooked Creek,AK,about 150 miles up river from Bethel.There are no reliable ground condition data;as a result,full geotechnicalstudyofthegroundconditionswillhavetobecompleted.However,an onsite examination of the borrow pit located at Crooked Creek indicates the soils consist of fractured rock,sands and silts.Based on these examinations it is expected that the soil conditions at Crooked Creek will be substantially improved over those at Bethel. Cogeneration Plant The Plant will include as prime movers three (3)fuel oil (diesel DF2)-fired combustion turbines of which two will be in continuous service and one in stand-by duty.The plant also includes a heat recovery steam generator and a steam turbine with condenser and cooling tower.The capacity of the Plant is as follows: At the Bethel location 126 MW CTG +25 MW Steam Turbine +up to 230 million Btu/hr thermal energy At Crooked Creek location 126 MW CTG +25 MW Steam Turbine +up to 3 million Btu/hbr thermal energy Fuel System The diesel fuel (DF2)or equivalent fuel oil #2 will be stored in a farm of eight (8)3.2 million gallons tanks installed next to the Cogeneration Plant.The fuel will be brought into the tank farm,during the Kuskokwim navigable period,between June 1 and September 30,by means of fuel barges with a capacity of 2.3 million gallons (7500 tonnes).The barges will bring the fuel to a fuel dock where it will be pumped to the bulk fuel tank facility headers via an eight inch (8”)insulated pipeline by means of a transfer pump.A standby transfer pump is also included. There are two 10 million gallon tank farms between the City of Bethel and the Power Plant operated by fuel shipping companies and storing mostly diesel fuel. Other plant systems are described in Section VI.Description Of The Power Plant. The content of sulfur in fuel and resulting from this content of SO2 in flue gas is below Environmental Standards that will be imposed on the Plant,therefore,removal of SO2 from flue gas (FGD system)will not be required. Generation of nitrogen oxides in the combustion turbines is below requirements, therefore,special means for NOx reduction (SCR)will not be required. Plant Operation The MPP will be operated on a 24-hour,7 days /week basis with no planned shut downs.Since there is one CTG stand-by unit,there is no need to reduce the plant 49 IDES PRECISIONENERGY SERVICES INC. capacity for planned maintenance.If the HRSG or steam turbine needs to be taken off line for repairs or maintenance,the following operations procedures will be implemented: The two CTG may be mn at full capacity generating a total of 85 MW net.Taking into account that the gross plant output includes the assumed power contingency and parasitic power demand of the steam plant (please refer to III.Project Specifications, Subsection A.Requirement Specifications),this output is sufficient to supply 100% power demand of the customers. In a highly unlikely situation,when two CTGs and steam turbine are out of commission one CTG will supply 42 MW,all of the generated power will be sent to the Donlin Mine and the City of Bethel will start up their stand-by diesel generator. Heat for the district heating system will be supplied either from the HRSG with steam by-pass to the DH system,or from the stand-by boiler if the HRSG is also out of commission. 2.Main Concerns a.Power Supply Interruptions The Power Plant will produce electric power to be supplied to the City of Bethel (9.3 MWe),Donlin Mine (70 MWe +5 MWe transmission loss)and villages,and thermal energy to be supplied to Bethel and the villages. Interruption of power and heat supply may be harmful to both the residents and the mine operations.The related main concern is downstream of the process (supplying the customers). b.Ground Stability The plant will be built in the Kuskokwim delta where the ground is unstable permafrost with top layer being siltous material.Localized damage to the permafrost caused by heating and unnecessary penetrations may result in extensive losses of foundation stability and permanent damage to the plant. c.Fuel Supply As in any combustion power plant,fuel supply is critical for uninterrupted operation.This issue is described in full in Section V.Possible vulnerabilities are: 50 PES PRECISION ENERGY SERVICES INC. .Late start of fuel supply season due to navigating conditions on the Kuskokwim River .Shortage of fuel on the market due to international conditions. .Inadequate fuel quality Late start of the navigational season due to weather conditions may result in disruptions of power generation near the end of May and into June.Shortage of fuel on the market will also be most visible in May and the following months.Inadequate fuel quality may result in increased fuel consumption (due to lower heating value),which in turn will result in faster depletion of the fuel stored in the tank farm. d.Instrumentation and controls are extremely important to reliable operation of the system.The issue is flagged here to raise the awareness of the engineer during the design and system supplier selection process. e.Plant Operations Management and Control System (DCS) Even the smallest errors in process design including the distributed control system and in operating and maintenance procedures may result in extensive reduction of the system reliability and availability. f.Other Concerns Other concerns include factors whose impact on the plant reliability ispresentlyperceivedtobeminimalyetincertainconditionscouldbe detrimental to the availability.Included here are: .Make-up water supply and treatment;interruption of make-up water supply for a period longer than 48 hours will require shutting down the HRSG and,as a consequence,will eliminate power generation in the steam cycle. .Excessive snowfall would limit access to the equipment modules. The largest snow precipitation values are in the range of 3 to 5 feet over the winter period.Larger snowfalls,especially such that happen in a short time span may cause significant operating and maintenance problems. .Winds.The Bethel area has a very high proportion of strong winds. The Pressure Vessel design Code requires that structures be designed for winds up to 110 miles per hour. .Plant lighting and grounding .Fire prevention 31 PRECISION EXERGY ”SERVICES INC. 3.Estimation of Availability of Equipment and Systems;Addressing the Concerns. In this study the main concern is the Reliability(R)and the Availability (A)of the entire power plant,not just single equipment items or even systems. a.Power Supply Interruptions are the results of possible operating problems.As described above,the plant layout provides for various arrangement of equipment that result in high reliability.At normal operations and properly conducted planned maintenance the system will achieve a reliability factor approximating 100%.The main processing equipment -combustion turbines or diesel engines,all with generators,exhibit reliabilities in the range of 99.0%to 99.8% (see Attachment Reliability/Availability of GE LM6000 &Alstom GTX100 turbines).The plant has stand-by,redundant prime movers to eliminate any uncertainty of their operation. In light of this,the Availability of the prime movers,including generators can be assumed as 100%.The Reliability of the prime moving system with redundant equipment,whose time from start to full capacity does not exceed two minutes due to "hot stand-by”,can also be assumed as 100%.The percentages are not for single equipments but for the entire prime power generation system. Other process systems,the HRSG and the steam turbine generator have also very high R/A factors;however,as described above,their 'failure do not impact the overall plant R and A. b.Ground Stability In predicting the ground stability the most important step is selection of engineering and construction contractors with extensive and recent experience,excellent track record with high caliber staff of professional engineers and managers.Based on the predictions,the same team will design and build the foundations for the plant.Properly designed foundations should have a reliability and availability of 100%. c.Fuel Supply To prevent any process interruptions caused by fuel supply problems,someimportantmeasureswillbeundertaken,such as: .Enter into fuel supply agreements with a reputable company. 52 PRECISION EMERYf1)=SERVICES INC. .Acquire own fuel barges and tugs,which would be dedicated to bringing fuel to the plant. With all measures undertaken to assure fuel supply,the Reliability and Availability values are proposed to be assumed 100%.This does not include the factor relating to the situation on the international market.Taking into account that there is fuel obtained from local Alaska resources,this factor may impact only the cost of the fuel. d.Instrumentation and Controls and Plant Operations Management and Control. The Reliability and Availability of the Plant due to these factors will be controlled by high quality engineering of the process and the control system, including where required sufficient redundancy,as well as procuring the equipment from the most reliable suppliers (ABB,Honeywell,Allan- Bradley,Emerson). It is proposed to assume the R and A factors as 100%. e.Other factors Taking into account all auxiliary systems having impact on the Reliability and Availability of the plant and built in redundancy,it is proposed to assume the R and A factors as 100%.Some of the redundancies include: «Doubled water treatment and preparation system (100%redundancy) «Connection of all modules with covered passages -Fire alarming and fighting systems as well as stringent implementation of fire prevention means E.Estimation of Plant Availability and Power Supply Reliability The plant consists of several in-line (series)and parallel systems. In-line:fuel supply >storage >delivery to prime movers >combustion in prime movers >power generation >substation (transformer and breakers)>supply to clients. 53 BES FREHoNBOCER.SER VICES INC. Parallel:3 CTG lines;1 STG line (HRSG +STG) Auxiliary system. In practice,all systems of the Power Plant operate in parallel,which means that for each important system,sub-system or device there is a back-up system,sub-system or device.The availability of the plant will therefore be equal to the availability of the weakest point in the system. In line system reliability Fuel supply to battery limits (tanks)100% Fuel supply from battery limits to Prime Movers 100% Process (PM +generators +substation)99.4% Ground stability 100% All other factors combined 100% Total line reliability =100%x 100%x 99.4%x 100%x 100%=99.4% Forced Outage Rate (F.O.R.)=1-0.994 =.006 Hours per year unavailable to serve load =8760*.006 =52.56 hr/yr The plant availability will be reduced by planned maintenance of systems impacting the output of the entire plant.Since these systems include sufficient redundancy for maintenance work,it could be assumed that the Power Plant Availability =Power Plant Reliability =99.4% 54 PRECISION ENERGY r SERVICES INC. VII.COST SUMMARY The following Table provides a cost summary of the MPP based on the Combustion Turbine technology and plant location in Bethel.The system costs include: Equipment cost Installation cost Shipping cost Project engineering and management Cost of camp for workers including food allowance and travel to mainland Table 9 System System Cost Combustion Turbine Equipment ,51,300,000 Steam Co-Generating System 18,809,600 Combustion &Steam Turbine Additional Equipment 11,162,800 Civil &Structural,including LCMF scope 44,585,000 Plant Services . 3,470,650 Rolling Stock 585,000 Project Services and installations 14,771,113 Start up and commissioning ,_398,420 Total Plant 145,083,000 Contingency 10%14,508,000 Grand Total Plant 159,591,000 Cost per Megawatt @ 150 MW Gross Output 1,063,940 Not Included in the Modular Plant Price: Environmental Impact Study $3,000,000 District Heating System $12,209,500 Total Not Included in Modular Plant Price $15,209,500 The equipment cost of the diesel -based power plant is in the same order as the cost of the CT - based power plant,however,the installation cost,including bringing in cranes of sufficient lifting capacity,is significantly higher than that for the CT -based plant. 55 PRECISION EBMEAGY SERVICES INC. Table 9a shows the cost of the Modular Plant mounted on a barge.The fuel storage Tank Farm, the 100,000 gallon water tank,as well as the maintenance shop will be located on shore. Table 9a System :System Cost _ Combustion Turbine Equipment 49,117,500 Steam Co-Generating System 16,112,000 Combustion &Steam Turbine Additional Equipment 9,208,900 Civil &Structural,including LCMF scope -38,335,000 Plant Services 2,674,825 Rolling Stock 385,000 Project Services and installations 14,771,100 Start up and commissioning 398,425 Cost of barge . 4,500,000 Total Plant 135,502,750 - Contingency 10%13,450,250 Grand Total Plant 148,953,000 Cost per Megawatt @ 150 MW Gross Output 993,020 The capital cost of the barge mounted power plant is $10,638,000 lower than the cost of land- mounted plant. 56 beenaeeSERVIC,VICES INC.IPE Table 10 MODULAR POWER PLANT LOCATED IN BETHEL Comparison Of Turbine And Diesel Engine Driven Generators Full Or Partial Performance Information Provided By Vendors (Diesel Engine Waste Heat Recovery Calculated;Not Provided By Vendor) ALSTOM KAX100- Prime mover 2CE GE LM6000+|IMANB&W 18V48/60|WARTSILA 18V46 Combustion turbine (CT)Low-rpm Diesel Low-rpm Diesel 'Load demand NET OF PARASITIC POWER {kW 90,100 90,100 90,100 90,100 Heat demand for DH and local heating (tanks)_[Btu/hr 176,904,000 176,904,000 176,904,000 176,904,000 Single engine /turbine output,shaft-operating kW 32,810 32,327 18,900 17,024 Maximum Output of Engine /CT kW 42,000 46,000 18,900 17,024] Number of Operating Gensets working 2 2 5 6 Stand by CT or engine 1 1 2 -2 HRSG (no stand-by)1 1 l 1 Steam turbine (no stand-by)]1 1 ] Steam turbine output kW 24,980 23,040 9,630 8,589 Generator output on poles kW 88,270 87,694]92,135 99,600) Stand by steam turbine NA NA NA NA Total installed electric generating capacity kW 150,980 161,040,141,930 144,781 Over/under capacity excluding stand-by kW 500 (2,406)14,030 20,633Over/under capacity at 80%power demand kW 18,520,15,614 32,050 38,653 Fuel usage for 90 MW and thermal load IBtu/hr 678,200,000 715,934,600 649,489,394 664,433,139 Heat rate for electric power generation only Btu/k Wh 7,683 7,946]7,209 7,374 Energy for steam production used IBtu/hr 149,340,000 155,000,000 125,700,000 118,630,000 Energy for steam production still available IBtu/hr tb/kWh 0.409 0.431 0.391 0.400 Fuel usage at 100%power demand IBtu/hr 678,200,000 715,934,600 649,490,000 664,430,000 Diesel fuel No.2 (Williams specs)"LIIV)18,421 7.07 Ib/US gallon 57 [DFE PRECISIONERERSY SERVICES INC. Fuel demand [b/hr 36,820 38,870 35,260 36,070 At 99%availability gal/year 45,165,000 47,680,000 43,252,000 44,245,000 At 80%power demand gal/year 36,132,000 38,144,000 .34,601,600 35,396,000 Fuel cost delivered to BT at $1.05/gal at 80%power demand $37,938,600 $40,051,200 $36,331,680 $37,165,800} Energy efficiency Electric demand converted to thermal units.[Btu/hr 307,421,200 District heating demand,year average low T _|DH1 Btu/hr 134,000,000 District heating demand,average winter (most DH?Btw/hr 176,740,000representativecase) District heating demand,highest demand |IDH3 Btu/hr 230,000,000 Tank heating|IBtu/hr aver 164,000 Total energy demand TD1 441,585,200 This is the most representative case and is used below D2 484,325,200 TD3 537,585,200 eat Balance/recovery Prime duty KWh converted to Btu IBtu/hr 307,421,000 307,421,000 307,421,000 307,421,000} 45.3%42.9%47.3%46.3% Heat available for DH from prime mover exhaust IBtu/hr 243,780,000 201,600,000 125,700,000 118,630,000 Heat to be utilized IBtu/hr 176,740,000 176,740,000 176,740,000 176,740,000 .duction of input (90%effisiene,applic 3 piwx (60,336,000)(22,374,000)56,711,111 64,566,667 Total utilizable energy Btu/hr 484,161,000 484,161,000 484,161,000 484,161,000 Total input Btu/hr 617,864,000 693,560,600 706,201,111 728,996,667 Total plant energy efficiency (TD/Btu input)|PE2 78.4%69.8%68.6%66.4% Heat rate with cogeneration =Btu IN /(kWe + Btu/3412)4,354 4,888 4,977 5,137Btu/kWh kWe -net electric output;Btu/3412 =cogeneration heating expressed in kWh;in energy terms kWe =kWh 58 PRECISION EMERGY SERVICES INC. Remarks: Performance information relating to MAN B&W had been calculated and needs to be confirmed with MAN , Supply shortage from combustion turbines can be alleviated by duct firing Power supply shortage from Diesel engines can be alleviated by temporary exceeding design capacity : At 80%power demand it may be satisfied with 4 diesel engines The diesel plant exhaust heat can be utilized either for direct heating of the DH medium or for combined power and heat generation;the first option renders higher efficiency. 59 PRECISION ENERGY SERVICES INC. IX.OPERATION AND MAINTENANCE Personnel #Employees Management Plant Manager incl.Safety and Environmental 1 Production Manager 1 Shift Hourly Personnel Shift Supervisor 4 Auxiliary Operator 4 Equipment Operator 4 Hourly personnel Administrative Assistant,Purchasing &Records 1 Millwright Machinist 1 Journeyman Welder 1 Journeyman Electrician 1 I&C Technician (2)2 Total Personnel Full Time | 22 Total Direct payroll cost Burden Rate %32% Scheduled OT &Part Time Non-Scheduled OT Total Personnel Cost Equipment O&M Fuel and lube oil for rolling stock and boiler Technical Services and Outside Support Cost per Year 120,000 72,800 210,413 190,862 148,595 42,390 52,104 47,840 48,776 133,120 1,066,900 341,408 90,728 100,029 1,599,065 208,000 300,000 Testing,outside Lab Analysis,Inside water Lab and testing supplies 25,000 Travel,Training and Safety Contact services-Janitorial Consumables office Consumables plant including water treatment chemicals Replacement tools and equipment Phone,mail and express service Parts and Mat'l shipment to port,annual barging and misc.air Water-No cost included in Maint.&station power 50,000 6,000 4,000 150,000 15,000 12,000 150,000 0 Spare parts &maintenance cost +Reserve of $500,000 Annually 2,650,000 Waste removal &disposal Property lease Insurance fee (Fire,Accident) Total O&M Taxes (No taxes in Bethel) Miscellaneous contingency 5% 60 7,500 0 250,000 3,827,500 0 271,330 PRECISION EMERGY ”SERVICES INC. Total Annual O&M Cost including labor $5,697,895 O&M cost per kWh generated In Bethel $0.0073 In Crooked Creek $0.0089 61 ATTACHMENTS:BMENAANSYNESchedule General Contractor Drawings Photos Maintenance &Repair Shops Alstom GE Diesel Conceptual Design Report Fuels ATTACHMENT 1 Bethel CT Plant (Time For P [Year 2 Year3ilH $PasSSSERConstructionCamp&Uliites inc!water supply Fabricationincluding ShippingtoSite” Bhaiel tank Bang efsseegssInstrumentation&ControlsEnvironmenialSysiom&ControlsStand-by Generation&Steam SystemPiantUtittiesandServices”Glvil &StructuralWork&EquipmentRatBiock.Loe ConstructonCamp&Utiites inci water supplyDistrictHeatingSystem Diesel Tank Farm Combustion Turbines:::] Steam Turbine Generating Sysiem wWHRSG i : . :] ProjectConairsched2011 19 Modula}Task Ca)ig bate:1iN9 Spit smecnesuvvamensvane -Mbostone A Project Surmmary AEHAAMRGF Exiomat Miesions @ Paget ATTACHMENT 2 The.Industrial Companye May 15,2003 Rafal Berezowski Precision Energy Services 10780 N.Highway 95 Hayden Lake,ID 83835 Reference:Bethel Alaska Cogeneration Plant Construction Services Budget Mr.Berezowski: TIC -The Industrial Company welcomes this opportunity to provide Precision Energy Services with the enclosedbudgetproposal.This proposal represents the use of historical information to provide indicative cost for theinstallationoftheBethe!Cogeneration Plant.Our proposal encompasses our best effortsto providetheinformationrequested,however some items we were unable to price at this time. Once again,we appreciate the opportunity to provide Precision Energy Services with this proposal and look forwardtoworkingwithyou.If you have any questions,don't hesitate to contact me (503)692-6327 Ext:227. Respectfully, Dan Fontaine Dan Fontaine Estimating Manager Encl:Proposal Northwest Region:12705 SW Herman Roed -P.O.Box 889 Tualatin,OR 97062 -(503)602-6327-Fax (503)692-4760www.fic-inc.com H Al7 TheaIndustrial Companys 100 MW PC Plant Cost Basis of Pricing Basis and Assumptions Midwest USA location. EPC cost basis with no liability for performancewrap2identicalSOMWunitsindependentofeachother. 2 GE LM2500 combustion turbines included. Site is assumed to be flat,clear of trees,requiring only surface drainage.Pilingis assumed for major foundations. Plantis completely enclosed.Limited underground piping and electrical. Administration building and shop buildings are included.10.All site finishessuchas paving,fencing,stone coverareincluded.11.Natural Gasisfuel for ignition,standby boiler,LM2500.PRNAWAYL&Items not included 1.Freight for all equipment and materials from Seattle to the site2.Man camp cost or personnel per diem or subsistence3.Productivity factor for Alaska (weather or remote site) 4.Operations personnel for start-up and training 5.Purchase of land,easements,right of way6.Environmental permitting and permits 7.Handling of hazardous materials8.Bethel district heating steam line form building wall offsite9.138kV electrical transmission line from switchyard takeoff tower offsite 10.Supply of coal handling equipment. 11.Coal storage pile enclosure. 12.Utilities outside of site boundary (gas,makeup water,sewers,etc.) 13.Waterfront improvements,docks,barge moving equipment 14.Permanent spare parts 15.Shop tools and lab equipment 16.Fuel,water,electricity for start-up and testing Northwest Region:12705 SW Herman Road -P.O.Box 889 -Tualatin,OR 97062 =(503)6982-6327-Fax (503)692-4760www.tic-inc.com 100MWPC.xIs TIC The Industrial Company BETHEL ALASKA COGENERATION PLANT - PC Plant Cost -100 MW Coal -2 Unit -Greenfield Site Item Description Total Cost Total Piant Cost 172,435,000 Cost per kW 1,724 Major engineered equipment purchase 72,070,000 Plant Construction 65,405,000 Project Management &Indirect Costs 34,960,000 Status Date:5/14/2003Page1of1'Print Date:5/15/2003 9:13 AM TIC -The Industrial Company (TIC)(subsidiary of TIC Holdings,Inc.)is a management owned, general heavy industrial contractor.Established in 1974 and headquartered in Steamboat Springs, Colorado,the TIC family of companies has rapidly become one of the leading industrialcontractorsintheworld. TIC's dramatic success story had a modest beginning.Initially involved in municipal and light commercial work,TIC's "Can Do”attitude quickly caught the attention of the local coal industry.TIC's entrance into the industrial construction market began with the erection of the heavy equipment utilized for the mines in the area;draglines,shovels,etc.Our reputation within the mining industry grew and TIC took on larger and more complex projects for the coal producers and process facilities for the uranium producers in Colorado,New Mexico,Utah and Wyoming.In 1977 TIC formed TIC -The Industrial Company Wyoming,Inc.,establishing a permanent presence in the heart of the coal and uranium market.Additionally,TIC began diversifying into the oil,gas and chemical market through the oil shale boom in northwest Colorado and the few refineries in the region. In the early 1980's,TIC took a significant leap forward securing two major projects for molybdenum producers,one in Tonopah,Nevada and the other in the central mountains of Idaho near Challis.The successful completion of all disciplines:civil,structural,mechanical,piping and electrical/instrumentation enabled TIC to take on the next major opportunity,the largest open shop project in California at that time,the Homestake McLaughlin Project.These projects set the stage for TIC's involvementin the most prolific gold boomin this country's history - The Carlin Trendin Nevada. During the late 1980's TIC noticed a decreasein mining related activity and quickly realized thatwemustlookatalternativemarketsforcontinuedgrowth.Althoughin its infancy,the independent power market offered TIC some opportunities for diversification.TIC successfully entered the power industry by completing several geothermal and coal-fired,CFB,facilities inCalifornia.Since then,TIC has consistently been ranked among the top 10 contractors involved in power generation installations,including:simple and combined cycle gas turbine projects, cogeneration,coal-fired facilities as well as all types of renewable energy. As we expanded into other markets so did our geographical presence,establishing a foothold intotheSoutheastmarketthroughmarinecapabilitiesinSavannah,Georgia and later a significantindustrialpresenceoutofAtlanta,Georgia.Permanent operations were also establishedinCaliforniaandtheNorthwest,accepting opportunities offered by the pulp and paper,refining,food and beverage as well as maintenance work.In.1993 TIC Holdings,Inc.acquired Western Summit Constructors,Inc.(WSCD)as a wholly owned subsidiary.WSCTI is a nationally recognized contractor involved in water and wastewater treatment facilities.In 1994 TIC International,Inc.was also formed as a subsidiary,having completed projects worldwide. Through this subsidiary are also the companies of TIC Canada and MexTICa,located in Edmonton,Alberta and Mexico City,Mexico respectively.Additionally,TIC established a Gulf Coast Region headquarteredin Houston,Texas,a Pipeline Division,ERS Constructors,inSedalia,Colorado,a Northeast Region iin Stonington,Connecticut,and a Great Lakes Regionin -Ann Arbor,Michigan. Today,we continue to position ourselves toward the future,constantly looking for growth opportunities and never losing sight of what has made this company so successful -our Core Values:Powered by People,Operations Driven,Be The Best,Integrity,and Can Do Attitude. nd kN.fWigtpor ss ee,mf vebeeue i RT Pyeoh:ni Ba Ra eae BATRA SitaeagaytlatinPeeaeeetee: Today,the TIC companies are ranked 32"in revenues and 37"in new contract awards by Engineering News Record (ENR)with 2002 revenues of $1.221 billion and contract awards of $1.296 billion.Additionally,ENR classified the industrial construction market and has listed us among the top contractors in fifteen of the leading industries.They include: 5™in Fossil Fuel Power Plants 6"in Steel and Non-Ferrous Mining related construction6"in Wastewater Treatment Plant construction (Western Summit Constructors,Inc.)6"in Sewerage and Solid Waste Treatment Plant construction (Western Summit Constructors,Inc.)g™in Power Plant construction g"in Operations and Maintenance of Power Plants8™in Marine and Port Facilities 10"in Dams and Reservoir construction (Western Summit Constructors,Inc.)13"in Sanitary and Storm Sewers (Western Summit Constructors,Inc.)13™in Transmission Lines and Aqueducts construction (Western Summit Constructors, Inc.and TIC -The Industrial Company)13"in Refineries and Petrochemical Plant construction 14"in Maintenance Services 16"in Water Treatment and Desalination (Western Summit Constructors,Inc.) construction 17 in Food Processing Plant construction20"in Water Supply construction (Western Summit Constructors,Inc.and TIC -The Industrial Company)unminnnMWWnunwRev.05/03 THE reIndustrial Companye TIC Holdings Inc.is a management owned,general heavy industrial contractor headquartered in Steamboat Springs,Colorado.Established in 1974,TIC has rapidly become one of the leading industrial construction companies in the country with an excellent reputation as a general contractor involved in all phases of construction.TIC is one of the largest members of the Associated Builders and Contractors,Inc.(ABC),an association of merit shop contractors and a major contributor to the National Center for Construction Education and Research (NCCER). Today,the TIC companies are ranked 65th in revenues and 55"in new contract awards by Engineering News Record (ENR)with 1997 revenues of $421 million and contract awards of $550 million .Additionally,ENR has further classified the industrial construction market and has listed TIC among the Top 20 contractors in nine of the leading industries.They include: 1st in Non-Ferrous Mining related construction 2nd in overall Mining related construction 4thin Steel Mill construction , 5thin Sewage Treatment Plant construction (Western Summit Constructors,Inc 8thin Cogeneration Power Plant construction 20thin Industrial Process related construction 17th in both Refinery and Petrochemical Plant construction 15th in Power Plant construction In 1997 Forbes Magazine also ranked TIC among the largest privately held companies in the United States. TIC Holdings Inc.conducts business through its wholly owned companies:TIC -The Industrial Company and Western Summit Constructors,Inc.(WSCTI).WSC1 is headquartered in Denver, Colorado and focuses primarily on water and waste water treatment construction projects in various areas of the country.TIC -The Industrial Company is the largest of the two companies and provides industrial construction services to a diverse client base across the U.S.through seven regional operations:Rocky Mountain,Southwest,Western,Northwest,North Central,Gulf Coast and Southeast.Additionally,TIC owns and operates two subsidiaries,TIC -International,Inc.and TIC -Wyoming,Inc.TIC -Intemational,Inc.(TICI)was established in 1993 to expand ourconstructioncapabilitiesintotheinternationalmarketplace.This led to the company's first majorinternationalproject,a 120 Mw geothermal power plant on the Island of Leyte in the Philippines. Since then,TIC has completed several projects in other countries of the world.TIC's primary focusrelativetoitsinternationalplaniscenteredaroundpowergeneration,mining and petrochemicalindustriesinthedevelopingcountriesofLatinAmerica,Southeast Asia and the Commonwealth ofIndependentStates.TIC -Wyoming,Inc.was established in 1977 and is headquartered in Casper, Wyoming.This wholly owned subsidiary provides identical industrial construction services as TIC focusing predominantly on the North Central region of the United States. As illustrated above,TIC is a highly diversified industrial contractor,involved in all major industrial markets such as:Power,Mining,Oil,Gas,Chemicals,Pulp and Paper,food and beverage and other related industries.The company typically self-performs all major disciplines including civil, structural steel erection,heavy mechanical equipment installation,process piping as well as electrical,instrumentation and controls.TIC averages 7-8 million manhours annually and conducts business through a variety of contractual methods including full Tumkey/EPC,Design-Build, traditional general construction or through discipline packages.Regardless of any contractual relationship,TIC approaches each of its projects as a partnered relationship and is a firm believer in the benefits of the Partnering process.This is not a2 contractual relationship but a philosophical approach taken by all project shareholders for open communication,team building and a commitment to achieving project goals. COMMITMENT AND DEDICATION TIC is proud to have climbed the ranks of today's leading contractors.This achievement reflects the dedication of our employees and a commitment to providing clients with the highest quality project, in the safest manner and at the most competitive cost possible.TIC is not the largest,but it strives to be the best.To maintain its position as a preferred contractor now and in the future,we must continue to focus on what has made it so successful! TIC's Core Values are as Follows: Purpose Statement TIC builds on its unique culture,creating opportunities for people to excel Core Values Powered by People -Success is realized through our people Operations Driven -Focus on field operations,providing the necessary support, appropriate responsibility,and authority to succeed Be the Best -Strive for excellence,continuous improvement and innovation in everything we do Integrity-Be fair and ethical in all that we do Can do Attitude -Aggressively pursue challenges with a sense of urgency,a desire to succeed and a commitment to hard work and having fun SAFETY IS OUR NUMBER ONE PRIORITY TIC is committed to safety in every phase of its operations.This commitment begins with the President of TIC and extends to each employee and new hire.Everyone involved with the company, from craft level personnel and management to clients and subcontractors,is a key part of the team. The single most important goal is to Safely produce a top quality project every time. Having safety as our number one priority has resulted in one of the most impressive safety performances in our industry.TIC's Incident,Frequency and Severity Rates are among the best in our industry and a fraction of the national average.The company's clients and industry professionals continue to honor our achievements in the area of safety performance and our relentless commitment to a safe work environment. TIC has always felt that its Safety Program is among the best in the country.However,to ensure that the company's efforts truly meet the needs and expectations of its employees and clients,TIC felt it necessary to conduct an independent audit evaluating all aspects of the program.TIC solicited the expertise ofDupont's Safety and Environmental Management Services which is considered to be the leader in safety management.In short,their review confirmed that TIC truly has an outstanding program,committed to the health and safety of all our employees.The company scored highly in all major categories:Management Commitment,Organization for Safety,Policies and Procedures, Record Keeping,Accountability,Training,Qualified Safety Personnel,Motivation and Communications,Client Relations and Subcontractor Safety Administration. Additionally,the recommendationssetforthbytheir findings have been implemented,ensuring that as TIC continues to complete some of today's most complex and challenging projects the company's employees will benefit from a Safety Program that is second to none. TRAINING TIC is a company that is truly Powered by People.The company realizes that it must continue to promote excellence through continuous improvement and innovation by providing our people with the necessary skills and technology to achieve both personal and professional goals.TIC is very proud of our training program.Without question,TIC offers one of the finest and most comprehensive training programs in the industry.The company's commitment to training is in excess of $1 million annually,offering a state-of-the-art facility dedicated to craft and supervisory . training . Vocational/Technical Training To prepare a qualified workforce to meet the challenges ofTIC's industrial contracting business,the company has designed and implemented formal,fast-track,vocational/technical programs for entry level craft workers,as well as craft upgrading programs for currently employed craft persons. Through formalized three and four year programs,TIC prepares highly skilled,dedicated and motivated employees,realizing an immediate return on investment through increased productivity and safer work habits. Programs are developed in nearly all of TIC's major work disciplines.Each program has the following instructional components: 100 to 150 clock hours of formal,related and hands-on training at TIC's 14,300 sf training facility in Steamboat Springs,Colorado AMini@ self study related training assignments throughout the calendar yearOnthejobskillstrainingOnthejobexperience In addition,each craft program encompasses the following: Safety Math Skills TIC's Corporate Culture and Core Values Ethics and Stewardship Non discrimination and sexual harassment practices Productivity,Communications and Quality Construction Management/Leadership Training In order to increase project management efficiency and to keep management personnel informed about TIC policies,leadmen through project managers are provided training in communications,time - management,supervisory styles,humanrelations,productivity and ethics. Additionally,managers are continually provided training inscheduling,cost control and overallprojectmanagement. The National Center for Construction Education and Research (NCCER) In addition to the above mentioned programs that have been developed and implemented,TIC is an _original and on-going member of the National Center for Construction Education and Research (NCCER).The NCCER's primary mission is to carry out vital construction related research in the fields of safety,training and construction practices.Several of the largest merit shop contractors in the country pooled their company resources to help establish the NCCER andis annually supportedbytheABCandtheAssociatedGeneralContractors(AGC). FINANCIAL STRENGTH. In today's ever changing and uncertain marketplace,it has become increasingly important to note and communicate the financial stability of any organization.TIC is very proud to be one of the largest and most successful privately held companies in the country with the financial strength to support nearly any size project.TIC enjoys a very strong relationship with our banking institutions as well as its bonding company. Financial highlights include (as of 12/31/97): Annual revenue of $421 Million Three year average revenue of $446 Million Net worth of $59,305,000 Total assets of $148,806,000Bondingcapacityinexcessof $1 Billionin the aggregate and over $150 Million per project Revolving line of credit of $40 Million Dun &Bradstreet rating of SA2,account #15-178-4485HOWAWWYwD Bank Reference: Norwest Bank 1740 Broadway Denver,Colorado 80202 Attention:Darlene Evans Phone:(303)861-8811 Fax:(303)863-6670 Account #:1010-947-951 Bonding Reference: Fireman=s Fund Insurance Company One Market Plaza Spear Street Tower San Francisco,California 94105 Attention:|§Mark A.Mallonee Phone:(415)541-4256 Fax:(415)541-4248 COMMUNITY INVOLVEMENT Headquarteredin a small rural community of northwest Colorado,TICis well aware of the impact aprojectcanhaveonanarea. TIC's philosophy is to have a positive impact on the communities where it works and lives by becoming active and visible in local activities.Examples ofour participation may include donations to appropriate community betterment programs such as the DARE program,teen leadership,LittleLeague,local schools and other service organizations.TIC has also donated its services such as labor,equipment and materials for community projects.On numerous projects TIC has hosted open houses on site at appropriate times during construction for the project owners,local and state officials,service clubs and schools.Rev.06/98 ATTACHMENT 3 wae} ey wy ioe438KV ne a.. i ae fof :¢wt ¥at ' mba |node -_5.DENTRAL.HEAT26@%EXCHANGE STATION |'|etiuee!éME "s <{-/BIRTRICT HEATING tee")MAIN TRUNK ILINES VaNOS ae +ite +)\bistrigt HEATAINTRUNKLINES =%ee| .vow ° .Proposed Dacklecaeny:|ogSSfLeareactseteAOSORE:aeFaGL[Rawsrenearn Co riN "DOCK UNLOADING PIPELINE '_,aa ae +TACO STORAGE TANKS, + ao J : o .BiPaes7\pLaNte CILInies|ni.nan S Ae ay we4 if aaa yr:ys B)pe SEED ,©020090-4 LAR POWER » . ms)PRECISIONENERGY SERVICES INC.P.O 804 1004 HAYDEN LAKE 1D €2638Phone(208)772-4487 Fan (2081762-4113.E-mad:enengyeppes-workd.com.Wed Site:hate./new pasword com fara mr BETHEL ALASKA COGENERATION PLANT MODULAR CT FACILITYDISTRICTHEATING-TRUNCK LINES San Chased eee)wo REAR ose foot |om [iar scans POMP TE PPDITIY 54 OR CAINot:Teg |OOM oar 1.COPMA:C44 OFSREKEDTOUTHER,BLE TF PART HORST WATE ne OH CCZONRD 069-080-001 PonyPROPOSED a a ACCESS \OFFLOADINGNFUELLINE a a 4 4 4 ' \ ala Ney N 5)NG I I WT li I I I » INTERMEDIATE FUEL _/TANK SUPPLY LINE GLYCOL HEAT CIRCULATION PIPES yt i [Rccwramec|ucseranecfccsmanas|pbLt ta wt sd delhi Ged cha T T Y Y Y TY \\Lpawwarer INTERMEDIATE,FUEL TANK PRECISION ENERGY SERVICES INC, P.O.BOX 1004 HAYOEN LAKE,10 83635 Phone (208)772-4457 Fax (200)702-1119 E-mal:energy@pee-world.com Web Site:http:/Aeww.pes-world.com PYTLE:BETHEL ALASKA COGENERATION PLANT3]OMSTTED PLANT SUE.nore jel MODULAR CTFACILITY1|REMOVED (4)FUEL TANKS 611)XFL cannes |THO |Ro GENERAL ARRANGEMENT 'CONCEPTUAL DRAFT -O6Z7AD 627 TaD ra oRaverGY THEY PRONEOF A "DATE JUNE63.2003xO.REVISION DATE ud OK [SCKE eae POT RCAF 15908 'FEE CC20000-00-000-002-2 (OD DLL NOTE 408 MO.DRANG ND.eit:2(COPED OR 09 ORED TO OTHERS,BH WHOLE OF BU PART.WITHOUT CC20090 000-000-002 10F1 REV. J- 36-07 LONG.247160 spor /-/VAL4bp-')IEs2XO2TL260-0">bt8GENERAL NOTES eReBES PRECISIONENERGY SERVICES INC.P.O.BOX 1004 HAYDEN LAKE.10 83835Prone(208)772-4457 Fax (208)762-1913E-mel energy @pee-world.com 'Web Site:hiip:www pee-world.com2}OMTTED PLANT BE _J veg jo}we jm CROOKED CREEK COGENERATION PLANT1[beta tas et xn |owtses |tno]Ra.MODULARCTFACILITY0|concerTum orarT |owe700 |THO]Re GENERAL ARRANGEMENT60,'REVO cate |ay fos"Teeb DRAWRG 19 THE PROPERTY OF PES THE DESIGNAND(DEAR SHOWN ARE.HAL coPEDWITHOUTWRITTENPERLASBIONF DRAWeBY.TO.APPROVED BV:OATE_JUNE97,2003SCA1°eG PLOTSCNE tot FRE:CC79000-00-000-003-2'pacioecorogreenswee onetrART.[OPonSPNHOLEORPAT,routs cC20090 ORNATE NO..00-000-003 tors 4 267(S35"LONG Aen"Stealg:a Y 4 § =ggLINGTt Ld 13 Ne / -_aan a aesls a .7 SSE a GENERAL NOTES seENLARGED PLAN SHEET CC20090-40-000-001 '2 3 PRECISION :SERVICES INC.HAE Tome P.0.BOX 1004 HAYDEN LAKE,ID 3835,Phone (208)772-4457 =Fax (208)762-1113E-mail:energy @pee-world.com 'Web Site:hitp:/Avww pes-wordd.comETEATEpinre|nt CROOKED CREEK COGENERATION PLANT+Joe.2tamse6ixrwa foeraes |TNO]RA MODULARCTFACILITY©[CONCEPTUAL DRAFT _[osa7na|TNo|Ra GENERAL ARRANGEMENTno.REVISION oare [wy [con [omear two APPROVESBY.8 OATE JUNE27,2003ThanRAWNGIbTHPROPERTYOFPERTHEDESION0[SCNE_12 800"TotieNE tt FRE _cconase 000000007AADBALLWOT3COPIEDOROISCLOSEDTOOTHERS,IN WHOLE OR IN PART,AWTHOUTWA'TTEN PERRESION FAOM PES, [408 WO, Cc20090 DHAWAN NO. 00-000-003 waar 2or{24sortev. Aa OTe t =on r7amReanseemencose i,;Pegs|DODO§meeeeeeeeeeeeeiphngteretenpenyensionyon-_={!|et 1 sme -LH ee Oe ooBSARRRESTARaRiNRYSh11 19a ParentweYeerm>EZItA,Rtpapielbaedlébdunouatihebadinpbentdenteneulbad --200 19h 19 AL,WERE FOR POLAT Da,*w ¥a La ¥.a aX . 2 :MAJOR EQUIPMENT LIST :''GRESSIONtea|ary OeecrIP non weort |mdf ary PESCRP TION weer |tama |ory DERCRIPTION WeGHT SERVICES INC.a aes spittinROS+ADT tet OCR Ho.ceermNE LI a ROR METER 405 HoePPus BvES =COT 3 -Oh 2 mherenues vere Se ms.Tome 0.@0x 1008 MATER LAGE 10BAGTAUAE.DUST MOC tae GERD *'Thame CAO,WATER BORAGE BY CoA 0 Or i DE -CT ot EE,OO Cy Pox roesPaR-1933CURATORAETOePTE,a Eom Am 7 'Taoan =Rpeee WATER SCRE OF BA nan rane 3 COOLS TOON TBF Lees ay Satld 5 SPHERE "1 Cont 'Wer Ons.ims:ieees osceneledAtaed ental aan)sortie Teaneane 'bpaeann Katine SON Nae,SO a Pee BET A NIE OED =.CROOKED CREEK COGENERATION PLANTntsncathNaevmslencteieaernrcenctrlahd=Tekbedl-Covi.SvATEm Aaival cay 'Pease QOMnT in The YG 0 WF one ut |Gierem Psat ahaa oie Grete rm J TIMW -MODULARCTFACKITYtuet_]curves Oa names tone s Set _]sven -txresmi tree eat wee Ore :as re ad _&[ecnceoniai cnet Teves |tao]a GENERAL ARRANGEMENT-PLAN VIEWorane--f ena ren reneeNNNeraleter9=1 |Fem.Gax ae.stonnad fw Oe sins APO ord A RR 3 _|tn on tome OA oa eo ma tin areoe,on Tw fon 78,ome _ere)[camarostoww00t,ie =ie oe Coit kt 3 Tat]Race reve CavensTwns,nruar Con.6 ARGO,<_|Sauna@10EWEa ha pa mae rane oie ou 5 Ri naeRN Raathan ie noppdaomernlendeh Se nga]ters eet ae Ad OT OTA so Oe A380P|Pe ae -sTeve und mee 1 herd a t SDRALET BYETEM -SACO Oy a Conrngenes aan wee SPE)OR NTC 90 OTE,Wt NHR GREEN,4 Tet |Peeab Ramone EXTRACTION «|7 |foam tnd STCLAOE WO §A AP SOP ee STE <n OO HTT AROUND ON,C20060 440-000-001 sort RT a ATTACHMENT 4 ms Pye?;fhe rg S ATTACHMENT 5 Maintenance and Repair Shops Equipment and tool furnish of the rolling stock garage shop Garage shop modules;size to be determined.Include heating,appropriate lighting,spare parts and tire storage,lubricants storage and electrical welding plugs. Outside weather shed for mobile equipment with lights and extension cord connections for engine block heaters. Electric and gas welding equipment Steam "Jenny”cleaner Spare parts,V-belts,oil filters,tire chains,spark plugs,light bulbs and batteries Tires &Tubes,chains,tire breaker,compressor,lift &impact wrench Work benches,tool cabinets,floor jacks,dollies,shop vacuum,tire racks,shelf racks. Jack stands,creepers,trouble lights,flash lights,bench vises,arbor press,light bulbs, show shovels,miscellaneous hand tools,drain pans,parts washer,miscellaneous nuts and bolts bin Hard hats,gloves,cold weather clothing,safety glasses,safety shoes,personal hygiene supplies | Fuel pump covered island,pumps,readout and totalizers,lighting and infrared heating Equipment and too!furnish of the maintenance shop Welding and machine shop;size to be determined.Include heating,appropriate lighting,spare parts and tire storage,lubricants storage and electrical welding plugs.Rest room, locker room,tool room,foreman's office and fire suppression 10 ton bridge crane welding shop 16”engine lathe,10'bed 10”bench lathe,5'bed 10”post radial drill press Small 5/8 drill press Vertical milling machine Horizontal milling machine Horizontal cut-off bandsaw Vertical band saw (steel) Iron worker 300 amp portable welder engine driven Oxyacetylene welding equipment Steam "Jenny”cleaner 50 ton vertical press Miscellaneous shop items One year supply of welding wire,2 to 3 sizes One year supply of welding rod,various sizes and grades Bar steel storage rack: Steel rounds,square,alloy,etc. F:\projects\AK\rolling stock garage shop Plate steel 3/16,4,4,% Nuts &bolts,grade 5 &8 Set of 6”to 12”calipers Set of inside micrometers Safety glasses,hard hats Coveralls,welding leathers &gloves Steel work benches (4) Vises of several sizes Storage cabinets Milling machine attachments and milling cutters Various lathes attachments and carbide cutters Miscellaneous hand power tools Miscellaneous hand tools Miscellaneous instruments Spare parts and storage Miscellaneous shop furniture F:\projects\AK rolling stock garage shop ATTACHMENT 6 meas MTBF Target MTBF|Mean Time Between Failure excluding start failures GTX100 Period . 1-AF =FOF +POF (revision)+POF (maintenance)+POF (other) [MFOF MPOF (revision)IPOF(maintenance)BB POF(other | ecogsy-Zoeweouet-z70qyzocep-zouelZOAOU- |QOOpZOPIO-L OAOU Period ZOdas-L OPO zo6ne-| odes ZOIn-L one zounF- ontzZofew-poun{Zolde-, ofew poreif: GTX100 AvailabllityFactor Besage 400.0% - ALSTOM May 14,2003 Precision Energy Services,Inc. Corporate Headquarters P.O.Box 1004 Hayden,ID 83835 Attention:Rafal Berezowski,Project Manager Subject:Indicative Proposal for Bethel Modular Power Plant Reference:M092 Dear Sirs: Alstom Power,Inciss please to provide PES with an Indicative Proposal for a Modular Combined Cycle Plant utilizing our 43 MW GTX100 Gas Turbine. The proposalis based upon the attached documents detailed as Plant Summary,Scope ofWork,Emission Summary and Heat Balances. Our proposal is based upon Alstom's Standard Terms and Conditions.Typical delivery would be 10-12 months.Our Indicative Price for the Modular Combined Cycle PPlant as described above would be$59 Million USD FOB Alaskan Port. Please let us know what other information we can provide to help support your activities on this project. Sincerely, Kevin Hull Business Development Manager Alstom Power,Inc 10305 Viacha Drive San Diego,CA 92124 858-495-0085 858-495-0086 fax kevin.hull@power.alstom.com www.power.alstom.com Page 1ALSTOM Bethel -92 MW Modular Combined Cycle Power Plant Summary Description of the GTX100 Plant The plant is a 2-on-1 non-reheat combined-cycle power plant with a standby GTX100 CT designed to generate approximately 92 MW gross when 2 CT's are operating at 80%load.The plant nominal capacity is 116 MW of net electrical power with two CT's and HRSG operating at 100%load. The plant configuration consists of two Alstom GTX100 combustion turbine- generators,one dual-pressure,fired,heat recovery steam generator (HRSG),and one induction/condensing steam turbine-generator.A standby GTX100 will be provided as "standby ready”.The design fuel is #2 fuel oil:All major components are modularized to the maximum extent practical for quick erection and commissioning while still being transportable. The combustion turbines (CTs)are Alstom Power model GTX100 firing on liquid fuel.Each CT is connected to a generator driven by the turbine's shaft through a gear reducer.Exhaust gas from each CT passes through a diverter valve system in simple cycle mode and when in combined cycle it passes through an HRSG where the hot gas,which otherwise would be discharged to the atmosphere as waste,is used as heat input for steam generation. The HRSG produces steam at two pressure and temperature conditions -1100 psia/950°F and 87 psia/386°F.The steam produced is routed to a steam turbine generator.The high-pressure steam supplies the HP turbine,and the intermediate- pressure steam supplies the LP turbine.The HRSG also has a supplementary liquidfuelfiredductsection.The HRSG is connected to all 3 CT's andis designed tooperateutilizingtheexhaustenergyfromany2ofthe3GTX100's. The Alstom GTX100 Combined Cycle Power Plant proposed for the Bethel Project is a unique configuration with 3 CT's connected to one HRSG.Alstom's advanced high-efficiency combustion turbine,the GTX100,currently produced in ALSTOM's facilities in Finspong,Sweden. The 2-on-1 plant configuration has been designed by Alstom for the application of the GTX100 in a high-efficiency,high-availability base load and intermediate load plant for the North American utility and IPP market.The plant will provide power reliably and efficiently at 60Hz.The GTX100 turbine and plant configuration have a number of characteristics that are particularly well suited to efficient and reliable service in this market: e The GTX100 is an advanced combustion turbine that incorporates recent developments in turbine technology. Page 2ALSTOM The GTX100 combined-cycle plant,with recent developments in turbine, HRSG,and control systems development,is a notable addition to its market, because it offers a highly evolved and exceptionally efficient plant in its size range.(The nominal capacity of a GTX100 in simple cycle is 43 MW.) The 2-on-1 combined-cycle configuration -in which two combustion turbines drive generators independently and provide HP and LP steam generated with exhaust heat to drive a steam turbine-generator -is a familiar utility-scale plant configuration.The 2-on-1 combined-cycle plant strikes a typically profitable balance among a number of sometimes competing objectives:convenience of construction,equipment outlays,optimal plant efficiency,and flexibility of operations. The Plant is designed with the flexibility to operate in 3 possible modes. Normal:2 GTX100 @ 80%load +HRSG +Steam Turbine to achieve a nominal 92 MW output with a redundant GTX100 with net heat rates in the range of 7100 BTU/kW LHV (site conditions at 60 F). Maximum power:2 GTX100 @ 100%load +HRSG +Steam Turbine to achieve a nominal 116 MW output with a redundant GTX100 with net heat rates in the range of 6900 BTU/kW LHV (site conditions at 60 F). Emergency:When the steam turbine is unavailable 1,2,or 3 GTX100's may operate in simple cycle to achieve up to a nominal 124 MW output. The Plant DCS System The GTX100 and steam turbine is controlled through an advanced distributed control system (DCS)consisting of an ABB Advant OCS equipment package.The Advant system is designed to provide automated start-up and shutdown of the two GTs and the ST from the control room.The DCS provides supervisory oversight,monitoring, and set point regulation for local controls devices.This supervisory function allows operation of major plant processes and equipment from the local control room via the DCS.(Processing units function independently,however,the exchange of signals across the communications network for controls purposes is avoided wherever possible.) ALSTOM Scope of Work The scope that Alstom has considered includes the following: Three (3)43 MW GTX100 Gas Turbine Generator Packages single fuel #2 Three (3)by-pass stacks with silencer (for simple cycle operation only) One (1)40 MW steam turbine (common for both GT's)with generator and control system.One (1)supplementary-fired HRSG with Stack. Boiler Feedwater Pump Skid The following is optional equipment not included in the offer: e Any tailpipe emissions technology e Piping and valves e Electrical equipment with start up and step down transformers,relay cabinets, MCC's e Structural steel with pipe bridge,ST building,etc. 'e Continuous Emissions Monitoring System e Raw water storage tank e Demin.Storage tank e Cooling tower approximately 200 feet from the steam turbine e Demin water station suitability sized to support the steam turbine cycleeCondensatePolishingPlant e Fire Protection for GT's e Compressed air for instrument éair with compressor,filter,dryer,receiver andpiping e Civil foundations for GT,steam turbine,tanks,etc. e Underground piping to cooling tower e Steam turbine building e Mechanical erection including labor and tools e Main step up transformers and switchgear,and substations e Electrical installation including labor and tools e Insulation e Foundation support system (no piles or subsurface investigation) e Limited painting e Limited cathodic protection,based on soil conditions e Site supervision e Plant engineering e Project managementeStartupandcommissioning including lube oil flushing,cleaning &flushing,steam blows and startup support References__16 units sold (10 units started) Unig Nopceiy]OperatiNaine'BAP ae Ae G }1)¥:i :Helsingborg 1.|Hsisingborg Energi AB-Helsingborg,Sweden GIX10 August ,Arjo Wiggins .|SERETE Brasse sur Braye,France|GTX100 43 |CoGen Natural gas |AugustStated|fio)-a 1998 "Gradca |[Emin Leydier jEmin Leydier Saint Valllers,France GTX100 43 |CoGen Natural gas jAugust Cerastar Cofiva Lille,France GTA100 43 (CoGen Natural gas |MayStarted|[4 os ; 1999 eiegag |[MMPA Gity of Chaska Chaska,Minnesota,USA |GTX1c0 43 jsc Dual fue}|Dec'Started (5).ar :"a me 1999 Sta Michetin PowerGen CHP Lid Stoke on Trent,UK GTX100 43.[cc Dual fuel ' .farted (8),!ae :Blackburn Scottish Power UK Blackburn,UK GTX106 43.jcc Natural gas |Feb'Started (7)::ad 2000 "Started |[SO!vay EDP Cogeracaa.Povoa da Santa Iria GTX100 43 |CogGen [Natural gas JMarchrae18)GDP Energia (Lisbon),Portugal 2000 Sianed Gendorf infraServe-Bayernwerk:Gendorf,Germany GTX100 43 |CoGen Natural gas |Novrae1)Gendorf GmbH,Burgkirchen 2000 'wig 4 |[Redding City of Redding Redding,CA,USA GTX100 43 |CoGen Natural gas |Dec Stared!City of Vernon [Cityof Vernon City of Vernon,CA,USA [2x_43 jcc Natural gas |Nov-awaiting CG (14-42)GTX100 . 2001 ||Mascaw City {City Energo Moscow,Russia 4x 43 jcc Natural gas jMayManufacture:(13-16)tO GTX100 2004 UPDAE:4502002 REIERENES,1 XSC/6X GOGEN/9X GC,7COLNFES inedthereks.'withoutprotaowritenpertéssionofALSTOMPowerSwedanAB.@ALSTOMPowerSwedenASandinNopestofBusdocumentmeybereproducedinanyformorbyanymeans,WereserveatigttainthieALSTOM GTX100 -GENERAL &COMMERCIAL TC) Introduction GTinumber Edlion Dos.ndX100009E6BO Introduction,GTX100 -Light industrial gas turbine General The GTX100 has been developed to meet increasing customer demands for highly reliable,clean and efficient power generation equipment.Other Customer values,such as Low Life Cycle Cost,plant compactness and short delivery time,have also been addressed.; Designed for robust simplicity Reliability is a key customer requirement in this market segment.Customers are extremely dependent on the smooth and uninterrupted supply of power and heat for their businesses.In order to ensure reliability in the GTX100,its design philosophy has been based upon simplicity,robustness and the use of proven technology. The GTX100 has a typical ALSTOM frame design with a minimum number of parts in a single-shaft arrangement.The compressor rotor and the three-stage bolted turbine module forma single shaft,which rests in two standard hydrodynamic bearings of the tilting padtype.This is a commonly used configuration for ALSTOM's larger gas turbines.The generator is driven from the cold end of the gas turbine which allows for a simple and efficient exhaust arrangement.Modularization,few parts,long component life and easy inspection ensure long time between overhauls and low maintenance costs. GTX100 3-D Cross-section ALSTOMPowerSwedenAB Gesedan:£4.56Type(Appioaton}:GTX100 @GSTD) 'thousprtorandIntheInformationcontainedtherein.Noperafthledocumentmayhareproducedinanyformorbyanynoens,'AreMSTOMPsearopisibie@ALBTOMPowsrSweaenABALSTG IM_STX100-GENERAL &COMMERCIAL 27 Introduction GTerurmber Editon Doe.KindX100009E6BO Design particulars Compressor section The compressor is a scaled version from ALSTOM's latest compressor icdesign.It has 15 stages and uses Controlled Diffusion Airfoils (CDA)for high efficiency.The first three stages have variable geometry.To minimise leakage over the blade tips, abradable seals are applied to stages 4-15.The vane carrier of the high-pressure section, stages 11 to 15,where the blades are shortest,is made from a low-expansion material that helps keep clearances to a minimum. The compressor rotor is built up from discs which are welded together into a robust unit using Electron Beam Welding (EBW),a technology used for many years in the GT10 compressor rotor and proven to be a design giving minimum vibrations and very reliable in operation. Cooling air for the hot sections of the turbine is extracted from the compressor at stages 3,5,8,10 and 15. Combustor sectionThecombustorisof the annular type and is made from welded sheet metal.The innersurfaceofthecombustorhasathermalbarriercoatingwhichreducesthelevelofheat transfer and extends the life of the combustor.This design concept has been used for many years in ALSTOM gas turbines. Compliance with strict environmental regulations is already required on many markets and the awareness of environmental issues is spreading to new regions.ALSTOM has recognized the strategic importance of environmentalissuesandhastakenaleadinthe control of gas turbine emissions.In 1988,ALSTOM introduced the first so-called EV burner on the market.To date,the total accumulated experience with this dry,low- emission (DLE)technology amounts to more than 3 million operating hours (as per March 2001),including numerous installations in the GT10. With the GTX100,ALSTOM has taken another step in lowering emissions.The combustor has 30 burners of the new Advanced EV (AEV)design developed by ALSTOM.The AEV burner technology,as applied to the GTX100,has NOx and CO emissions capabilities below 15 ppm (15%QO)on natural gas and below 42 ppm (15% O2)on liquid fuel without the need for water or steam injection.Dual-fuel dry lowemissioncapabilityisabuilt-in feature. Turbine section The three-stage turbine is built as one module for ease of maintenance and bolted to the stub shaft of the compressor.It has an advanced aerodynamic design with a fully 3D- analysed flow path with cylindrical sections over the first,second and third stage blades. The airfoils of first and second stage vanes and blades are cooled,using the technology found in other ALSTOM gas turbines.The first blade is made of single-crystal material to ensure durability and long life.The turbine stator flanges are cooled by compressor air to reduce clearances and improve efficiency. The cold-end drive arrangement allows an optimized axial diffuser section to be fitted for better performance.Particular care has been taken in the design of the diffuser ALSTOMPoserSwacenAB Sesed on:Type (rpotentony:GTX100 (PGSTOI windpetsoawritenpermissionalALSTONPowstSwedenAS.WereserveallrightsintiiedocumentandintheinformationconteinedRrerett.GALSTONPowerSaracenAnNoparofhiedocumentmaybereproduced#1anyformaorbyanymeans,ALSTOM GTX100 -GENERAL &COMMERCIAL 30) Introduction GT-nurber Eaton Doc.KingX100009E6BO connection to the heat recovery steam generator (HRSG)to minimise losses in combined cycle and cogeneration applications. Speed Reduction Gear The gas turbine is connected to the generator via a speed reduction gear of the doublehelixparalleltype,which reduces the 6600-rpmofthe turbine shaft down to a generatorspeedof1500/1800 rpm.The variable speed electric starter motor is also connected to the speed reduction gear,via a self-synchronising and switching (SSS)clutch and a separate starting gear. Validation of design The first GTX100 was ordered in 1998 and has been in commercial operation since 1999. A number of units have been ordered by customers around the world and are in different stages of the delivery process,ie.manufacturing in the workshops to commercial operation.Please see Reference List for details. The first unit was delivered to Helsingborg in Sweden and has been used for prototype tests.The tests have included all aspects and components of the gas turbine core engine as well as the auxiliaries,including performance and emission measurements. It has been necessary to modify some components as a result of the prototype tests but the overall result is very positive.All necessary modifications have been introduced andverifiedinthefirstengines.The gas turbines in the manufacturing programme will continuously be updated to the latest design. The tests made on the prototype have shown that the design and performance are living up to the high expectations outlined in the original engine specification. Auxiliary systems Lubrication Since the two gas turbine bearings of thetiltingpadtypeuse mineral oil,a commonIbeoilsystemcanbeusedforthegasturbine,speed reduction gear and generator.Oil pressure is supplied by 3 x 50%AC-driven pumps (2 operating/1 stand-by),which arecontrolledbyStaticFrequencyConverters(SFC's).The pumps will increase theircapacitybyover50%in the event of lube oil pressure decrease,avoiding pressure "dips” at pump change. Fuel systems The GTX100 is capable of operation on a range of gaseous and liquid fuels.Two fuel systems are available,for gaseous and liquid fuels,and in dual-fuel operation automatic switchover between the fuels is possible,in any direction,at full and part load. The GTX100is equipped for operationongasfuel as standard but can,on request,be offered for operation on liquid fuel. ALSTOMPowerSwedenAB Type (Apelicationk:GTX100 (PGSTD) therets,wholprioror'wittienperrissionofALSTOMPowerSwedenAB.andOeintoNepadofthisdocumentmaybereproducedinanytureoFbyanymeans,Wurneerceafrightsinthis-ALST©'M GTX100-GENERAL &COMMERCIAL 4(7) Introduction GTheurow Edten Doe.iGndX100009E6BO Control system Optionat Sed Operator Stationperioral=Advert 500 08 ny ised BaGce7 pon nee nnn ee 1ao!crboaee-----&popsil\'4 =a awe -ot nae at a OS a eae ee " i Control system flow chart I The GTX100 control system is based on the Advant system and has four controllers,one 3 of the AC400-and three of the AC100-series.The AC400-series controller is used for 3 sequencing,interlocks,open loop control and as computer interface to the operatorstation.One of the AC100-series controlleris used as a remote vO for the turbine skid signals and as the first channelin the two-channel safety system.The secondis used for closed loop control for fuel valve positioning and as the second channel in the two-channel safety system.The thirdis a closed loop control for the generator voltage (AVR).The man-machine interface comprises an Advant 500-series OperatorStation with a fullgraphiccolormonitor.The Advant control system may also communicate with external systems via standardprotocols. .ALSTOM Power Sweden AB Based on:Hee Aocacesan):GTX100 (GSTO) Ihara.withapriorngwienpermissionofALSTOMPoweSwedenAB.OALSTOMPoweSwedenASandIntheintsNopadofthisdocumentmarybereproducedinsiyforiorbyanymeme,allrighteIntieALSTOM GTX100 -GENERAL &COMMERCIAL 5 (7) Introduction GTheurber Edition Doe,KindX10000SE6BO Installation with typical control room Ignition gas tank Signal treatment room Process control equipment ---n °1 it m = |it (i oe Generator Start motor ¥ =ae:SFC Start panel Break resi _Fruid fuel pane om a Batteries under floor a -McC a \ Chargers =Control roomLubeoiipanel.gi Standard Simple Cycle arrangement,top view The GTX100 installation meets stringent requirements for compactness,short erection and commissioning times and ease of maintenance.The gas turbine is skid-mounted, with the auxiliaries grouped in a self-contained module to one side of the main skid.The footprint is only 27x7m /89x23ft. The layout is basically the same for all applications,whether simple or combined cycle, indoor or outdoor installation. The gas turbine skid is built of steel beams and carries the gas turbine,speed reduction gear and starter motor.It rests on a concrete foundation together with the generator and the foundation may be fitted with spring mounts if necessary.The main and auxiliary skids are covered by a weatherproof enclosure extending from the gear to the gas turbine exhaust. The air intake and exhaust stack are supportedby separate external beam structures.A two-stage disposable air filter is supplied as standard,but other options are also available, depending on site requirements. Electrical and control equipment may either be installed in the customer's control room or in a separate enclosure containing an auxiliary power room,a batteryroomanda control room,see a typical example above. ALSTOM Power Sweden AB tee ntaiet Fecha OmmnndBasedon:Ec.3Type(Application):GTX100 (PGSTD) tainedherein,,WaopeorpepewillenporentusionufAlSTORPowerSwedenAB.-ALSTOMPowerSwedenABondinNapartofthuledocumentmeybesepraducedinenyformorbyanymeans,'WeteserveoflrightsinthsALSTOM GTX100-GENERAL &COMMERCIAL 877) Introduction GTiwwmber Ediion Doe.X100009E 6 BO Generator The gas turbine includes a 4-pole generator of type ABB GBA 1250,driven from the cold end of the gas turbine via the parallel speed reduction gear.It is of simple andruggeddesignwithasalientpolerotorwithsolidpoleplatesandarotatingbrushlessexciter.The GBA-generator design has been well proven in numerous installations withtheGT10. The generator is installed outside the main enclosure. Combined cycle and cogeneration applications In a combined cycle the GTX100 can be arranged together with a heat recovery steam generation (HRSG)unit utilising the heat in the exhaust gases.A dual-pressure HRSG feeds a single-cylinder steam turbine.This configuration has been well proven in many GT10 combined cycle plants and offers a compact solution with a small footprint. For greater power,two GTX100 units,each with its own HRSG,may be arranged to feedonecommonsteamturbine. The GTX100 is also an excellent alternative for cogeneration applications,i.e.when onlysteamproductionisrequired.Depending on customer requirement ¢either one or twopressurelevelHRSG's are possible. Erection and commissioning _In order to reduce erection time at site,the GTX100 comes in modules which have been assembled and tested in the workshop prior to shipment.Most of the piping and cabling work has also been carried out on the shop floor to minimise the time requiredforthis atsite. The gas turbine,gear and starter motor mounted on the main base frame make up the _biggest shipping module. Starting and operation The GTX100 is started by means ofan electric starter motor connected to the speedreductiongear.The compressor has two bleed valves at stages 5 and 10,which are open at the beginning of the starting procedure and close during the start-up sequence.The starting sequence takes approximately 13 minutes,plus time for ventilation,which varies according to the installation.During operation,the power output is controlled by manipulating the variable guide vanes (VGV's)and the firing temperature.Initially,the power output is reduced by closing the VGV's until the exhaust temperature reaches 600°C /1112°F.Further power output reduction is achieved by reducing the firing temperature and closing the VGV's while maintaining the exhaust temperature at 600°C/1112°F.When the VGV's are set to their minimum positions,the power output can be reduced further by lowering the firing temperature.This operation principle gives high part load efficiency.- The firing temperature and VGV's are also used to control power outputathigh ambienttemperatures. ALSTOMPowerSwedenAS Sesedon:84.8Type(Applicaton):GTX100 PGSTD) rere,withoutpriormandIntheNopatoftiledocurnentmneybeteprodunndinwryfamorbyanyincace,'wittienpermissinnolALSTOMPowe:SwedenAil.Wemearveollrightstytvs©SALSTOMPowerSwedenABALSTOG M__STX100 -GENERAL &COMMERCIAL 7M Introduction GTHnurber Edten Dos.King X100009E 6 BO Performance In order to achieve a high level of performance,the gas turbine designer has to pay dueattentiontotheintendedoperatingcycle.. In particular,the advanced aerodynamic design,the use of abradable seals and low- expansion materials in the compressor section,as well as features such as turbine stator clearance control and the axial diffuser,contribute to the high level of efficiency. Low life-cycle cost Two key elements of the life-cycle cost are the costs of fuel and maintenance.They have therefore been considered at the design stage of the GTX100 to achieve low costs for the operator without sacrificing basic reliability and availability. The basic robustness and simplicity of the GTX100 and an optimised maintenance schedule mean that the maintenance cost is very competitive. Designed for ease of maintenance The GTX100 has a number of features that simplify maintenance and inspection.One side of the gas turbine has been kept "clean”,avoiding unnecessary piping,cabling and connections to allow for easy inspection. .Borescope ports are available on the clean side for inspection of compressor stages.At the front of the inlet chamber,1 manhole with transparent and reinforced polycarbonate window provides for easy inspection of the compressor inlet bellmouth. The compressor casing is vertically split in the longitudinal direction,which allows halfofittoberemovedforeasyaccesstotherotorandstatorparts.The rotor centerline is 1.5m /5ft above the floor,making inspections very convenient. The burner section design allows each of the 30 AEV bumers to be removed individually without dismantling the machine.It also provides for easy inspection of the combustion chamber. An overhead crane is installed inside the gas turbine enclosure to facilitate maintenance and enough space is available to allow operating personnel to walk around the machine. For flexibility,the gas turbine can be removed from both sides of the installation.The walls of the enclosure may also be removed easily,if required. ALSTOMPraverSwedenAB Sevedon:Ed S'Type (Appecatonk:GTX 100 (PGSTO} . Combined Cycle Plants KAX 100-1 and KAX 100-2 Combined cycle power generation. With the innovacon of de combined cycle,gas aurbines "graduated”fromtypicalpeakingpowergencratorsto bothmediumandbaseloadapplications. ALSTOMgas aurbinesaredesignedforheavy-dury and Jong continuousoperation,making chem especially suitable_for base load poweroperation.Our com- bined cycle plans can atain netefficienciesover54%and they retain highefficienciesoverlongperiodsoftimeandatpartloads.Several of theALSTOMgasturbinemodelsusebothgaseousandliquidfuelsandcan,in the eae of dualfuel,automancallyswitch from one fueltoanotherduringoperation. The introduction of the GTX100 gasturbineincreasesdreindustrialcom-bined cycle output while further im-proving cfiiciencyandenvironmenaul performance. Whenever you need a low life-cycle cost,efficient and environmentally sound solution for your heat and power generation needs -a solucion that an also be used in denscly populacedsurroundings-anALSTOM combinedcycleplantwillbethebetterchoice. Combined cycle plants KAX100-1 and KAX100-2 ALSTOM combined cycle phnts consist of standardised modules prepared for cogeneration and combined cycle _ Econornical production of heat and power adapations,The KAX100-1 is based on one GTX100 gas turbine,a waste heat recovery steam generator and a steam turbine,whereas the KAX 100-2 includes wo gas turbines.Overview concol equipaient provides necessary functions KAX100-1 such as aucomatic scart-up,operation, safety functions etc. Civil works,auxiliary systems,switch- yards,transformers,coolers etc conmplete the supply. KAX 100-2 ce"3dCE”Power WIA Iww porrevrmanke mm cerbinedcycle GTX 100 is the laeest addition to ALSTOM'successtul family of indust- rial gas eurbines.[¢combines the relia- bility and robustness of an industrial design with the high efficiency and low emission levels of the lacest turbine technology. The GTX100 gas turbine is opcimised for combined cycle operation and ics inherent simplicity helps keep Maintenance costs at 2 minimum. With a rated ourput of 43 MWe ic will produce a total of 62 MWe together with a non-reheat condensing steam turbine.The resulting overall electrical efficiency will in this case be 54%. seen 80oeTaser x ."<TIS itepayssere KAB1N0=]Parformones sorwmery,{50 3977 Conditions *forked 100 rey HD 'auv\erderinna,sat ean pocawQrebetBeeZTOHS19aontatsratteperSekhywere.pres.GOs ented i foe sna ¢: «3 Fines}°3 $00 oS we oem 'shnaneeieed:Wrekin Peng See i3NweesLietNneewa”Sad ;H;:'at.t:$:4q4ete err SSDETEET feet TREE)Stremergeta ee GrweKAXK100-2.Sere pejormetc double putpat Print B)ALSTOEkeBwanaEteeS ALSTOM Power «SE-612 82 FinspongSweden©Tel:+46 122 91000©Fax:+46 122 165 80 ©www.powar.alsiom.comALSTOMPowerUKLid©P.O.Box1,Woterside South,LincolnUNS7FD,England©Tel +44 (0)1522 584000©Fax +44 (0}1522 584900 -www cower cistnm.com Bek,PWER/MPROS/KAX100/uke/1PPB/02.01/SWO/1SB8¢O45E+0104+3000+ALSTOMSendenAdvertisingSiudhe»MvetedlyNewhipingsTeychen'All,Perpecesoalyundbondojecibechongewihoulseks,fugheeberind@ALSTOM2001,ALBIOM,theALSTOMlageandnaysheinetvevereinefiercelareDademartsendsermenmussofALSTOM.Iheetherseonesmantened,ragivaredarsat,oretheprapenyofGait ATTACHMENT 7 GE Aero Energy A GE Power Systems Business e,Availability &ReliabilityLM6000Experienc LM6000 Experience PA**PB PC*PD*Total Engines Produced 140 20 406 -81 647 Engines in Service 140 20 -260 «58 478 Hours of Operation***4,204,362 650,435 1,826,876 954,156 7,635,830 High Time Engine Hours 78,612 54,287 36,282 41,174 *Includes 267 SPRINT®model units**97 -PA models have been converted to -PC confiiguration.Engine count & operating hours have not been added to -PC numbers_***Does not include lease engines | As ofJuly 17,2003 Notes:PA -Single Annular Combustor,Original Rating PB--Dry Low Emissions,Original Rating -PC-Single Annular Combustor,Uprated Power PD-Dry Low Emissions,Uprated Power GE Pkg'd on y LM6000 Gas Turbine Reliability and Availability 12 Month Rolling Average -GE Packages only Globalization &Technology 146 units 100 :_99.83 -ee en 98.92 98 :-a a i 96 5 b8 a 7)' Qo.i94 : -GG Reliability (%) -_ |--GG Availability (%) 92 ||- ol | |jf ft a a a ee ae ee&&oFTPFFSFTFFFFSYFFFFGFF Source:ORAP®.All rights reserved:SPS® 24 July 2003 G.E.Proprietary Information Subject To Restrictions on Front Page PAGE 3 GE Pkg'd only LM6000 Package only Reliability and Availability oo 12 Month Rolling Average -GE Packages only 100 |99.28 98 - ) : 96 5 2 @ oa 94 OF .|--Package only Reliability ;Package only Availability 92 .i ii i j :7 Zz 90 &£fo Source:ORAP®;All rights reserved:SPS® Nn &&S&S WV Wve Ye NHNPSEEEFEESSYFFYFSFFFFYYFFFBF 24 July 2003 G.E.Proprietary Information Subject To Restrictions on Front Page PAGE 4 146 units si oe WIA Engineering Design Center--Reliability Group ” Globalization &Technology 00 146 units GE Pkg'd only LM6000 Complete Package Reliability and Availability12MonthRollingAverage-GE Packages only 100 a :-=i :.ee 99.11 98 +oT 97.77A_--- 96 fpeesenenerenen <3 i) a. 94 ;7 '7 ---Package Reliability (%)ao -/=--=Package Availability (%): 92 LW oad. 90 |re -}- sess spss spEdFTPFF¥FY FY FF F FY F F $F$F¥ Source:ORAP®,All rights reserved:SPS® 24 July 2003 G.E.Proprietary Information Subject To Restrictions on Front Page PAGE 5 GE Power System. GE Aero Energy Products LM6000 Overview Jim Canon Wes rm Rugion Accoun Manager LM6000 Gas Turbine Generator Set -PC 43MW LPC +HPC Sprint™ 47.3MW :te aS'ih qiatEenfv Ie -PB Dry Low Emissions >wo 'a ooAwe\AY2 oefatAGsesear=Sues Gr-PA 40MWw 1985 1990 1992 1995 1997 1998 2000 Continuous Product Improvements to Grow with Customer CTQs Positi | | LM6000_ 65000 9200 ene te 3000 gm |--wef Fleet Experience Bsn |-i Units FleetHours High Time 20000 =_=ne oa ee Oe nS OY1,7.),HoursaonLab,-Se ee oe 559 5,795,000 77,900 20000 7800 Temperature (°F)sstiwiiSPRINTFleetExperience Tr *oye ;Unit Fleet H High TiProductCapability/Availability -eee ee en ours Output Efficlenc Emissions Delive(Mi @)(%)y _(NOx ppm ref 15%02)(Month.io)15 1,000,000+25,000+ Gas-DLE 41.9 41 |25 Inquire GE Sales Gas-Wtr 43.5 40.2 25 Inquire GE Sales Gas-Stm 43.5 43.4 25 Inquire GE Sales Liq-DLE 39.9 40.1 104 Inquire GE Sales Liq-Wtr 43.6 39.5 42 Inquire GE Sales Full Portfolio of Configuration Options to Enable Customer Specific Needs Sprint™Features Uses less than 5m*/hr of deionized water A rt 6 ]ys ieiae,ay,hh i 4 -¥o"Rare | . pair ig ae 8 .fy pe #Aeee '- | 5 -a i i oe'ay edaBe! K ee (Gi AgiRR;RUAN |Sues wl OAS .s LEP AGG A WANSisPaiseaeALRBSeeee1sAH¥« an'OePBead4 an AND a\atafePostatApeSOCAN ie AUG yr EY FNS Se : 'igs yey i '3 * i a, ibe,5 RS dn tt"Faas ay ' *<<Pie j \"*F often AEB ;Hf BE ane ,a J 9 ia Ka ti per!S iP *SERS Ee ©é ¢ s.Hee e 7 iP Malt . 3 water &AirrYYManifolds HPC SPRINT™ , ,Nozzles LPC SPRINT™Nozzles ee wat ore Performance -LM6000-PC vs.PC+Sprint™ 52000 50000 48000 46000 44000 42000 40000 Power(kWe)38000 |36000 34000 32000 30000 28000" Base LM6000-PC o 5 10 =15 ==6©20,S25 --30 5 °C .i,L i Sea Level 60%Relative Humidity 5 in.H,0 Inlet;6 In.H,.0 exhaust losses Natural Gas Fuel -LHV 19000 Btu/Ib Water Injection to achieve 25ppm NOx "SL No VIGVs,60Hz,13.8kV,0.9PF LAN . 20 30 40 50 60 70 80 90 inlet Temperature °F 100 Provides >$100/kW.Savings for our Customers! ATTACHMENT 8 .MMANB&W Diesel Canada Ltd Saw Our Ref:E1/9335 Precision Energy Services,Inc. 10780 N.Highway 95 Hayden ID 83835 Attn:Rafal Berezowski -Technical Director April 3,2003 Subject:Crooked Creek Diesel Power Plant,Alaska Dear Sir, In response to your recent request for a 70 MWe power plant and heat recovery system, we now have pleasure in attaching hereto our budgetary proposal.This includes both pricing and technical information on the equipment proposed. The engine we are offering is the MAN B&W Diesel,1848/60 that would be capable of producing 18,900 kWb continuously when operating at 514 r.p.m.Coupled to the engine would be an alternator which,when wound for a 13.8 kV,3 phase,60Hz supply, would be capable of delivering 18,427 kWe,23,033 kVA at 0.8PF.The proposed power scheme compiles of 4 units in operation,1 unit in hot standby &1 unit in cold standby. MAN B&W Diese!offers a complete range of appropriate generating systems.Our four- stroke engines are available for power plants with engine outputs of up to 23,850 kW. The Diesel engine provides the highest thermal efficiency and permits the most economical conversion of primary energy into electricity.The specific fuel consumption of the engine is 176 g/kWh at ISO conditions.Regarding emission,the Diese!engineproducesNOxemissionsinaconcentrationof1920mg/Nm3 at 15%O?which equals more or less 940 ppm. Power plants equipped with modern MAN B&W four-stroke Diesel engines offer the following principal advantages: -Lowcapital investment -Easy and cost effective installation -High thermal efficiency -Capability to burn arctic fuel oil -High reliability Easy to extend High flexibility to meet load demand Low maintenance requirements MAN B&W Diesel is a leader in the field of power generation with 'over 10,000 MW of installed capacity worldwide.Our Canadian organization,which has been in operation for over 45 years,has built more than 80 diesel power projects.More than 15 of these are mining companies,and most of them located near the Arctic,like the Kennecott - Greens Creek Mine in Alaska.This demonstrates we have vast experience in sub-zero temperature design aspect &equipment application. For your information,we are ISO 9001 registered on quality assurance,and engaged in power design,application engineering,project management and after-sales technical service &support. When reviewing our budgetary offer,kindly consider the following information about the relevant design,scope and services: 1.The engines will be transported completely assembled as shown in the transport drawing No.4 (engine assembled and placed on the frame)in PART 7 of this proposal.At Alaska harbour (e.g.Goodnews Bay)all the sets will be unloaded by the shipping crane in order to move them on a lowbed trailer onto a suitable barge and transport them to the site.Dismantling and re-assembling of the engines and /or placing the engine(s)onto the steel foundation frame(s)in the Alaska harbour or even at site are not included at this stage. 2.Six diesel fuel oil storage tanks with a capacity of approx.18,000 m®each are provided to fuifil the storage capacity of 27 million gallons requested in this proposal. The tank farm for the diesel fuel oil has a size of 177 x 126 m?,added by a size of 20 x 16 m?for the lube oil storage tank (387 m*)and two sludge tanks (each 10 m?).We assume,that the diesel fuel oil will be transported in the summer time to the site by suitable ships.The unloading dock at Kuskokwin River,and all facilities for fuel and lube oil is presently not included in the quoted scope. 3.With regards to the several diesel fuel oil specifications supplied and the estimated heat supply in hot water requested in the RFQ,we concluded that no exhaust gas boiler is necessary (i.e.all the heat can be supplied by the waste-heat of enginecoolingwater).For safety reasons a smail auxiliary boiler is included.Heating piping and accessories for heating purposes outside the power plant,such as central heating of Crooked Creek housing and public buildings is not included. 4.We assume the power pliant is feeding its electricity into the grid as in running in parallel to the grid.Island operation is not assumed. 5.The NOx-reduction plant is not included in this offer at this stage.As discussed previously,the SCR catalyst can convert the NOx to a value below 25ppm for 19,000 operation hours,then the first row of the three ceramic rows has to be exchanged to reach again the conversion figure.The urea consumption of a 40%solution is 434.5 Vh at 100%load,for pure urea the amount is 193.3 at full load.The budget price of the combined SCR and oxidation catalyst is EUR 667,000 per engine,delivery in 2003 CIF Alaska.The price does not include urea tanks for storage or mixing, installation,piping and an air compressor. As for the reduction of the NOx emissions with water emulsion we identified one company in Germany producing the additive "Span 80"(so called Sorbitanmonooleat).The price is approx.$3.5 US/kg,and approximately 0.5 to 1 % is required for the fuel-water emulsion as an additive,a mixing device has to be installed. Should you find a requirement for any further information,or clarification of this proposal, please do not hesitate to let us know. Your Contacts: Roger Noseworthy -Director,Sales &Marketing Tel:+1-905-842-2020,Ext 246 Fax:+1-905-842-2025 e-mail:moseworthy@manbw.ca Achilles Cheng -Tendering Manager Tel:+1-905-842-2020,Ext 244 Fax:+1-905-842-2025 e-mail:acheng@manbw.ca Josef Dorner -Technical Sales Support Tel:+49-821-322-3239 E-mail josef_dorner@manbw.de _Sincerely, é,oger Noseworthy jDirector,Sales &Marketing ' Able Gow<i'fia MAN B&W Diesel Canada Ltd c.c.Chris Walker Pricing Optional equipment Transport DDU BUDGETARY PRICE SCHEDULE We quote for the Diesel generating equipment stated under Section 4 "Scope of supply”of the enclosed Technical Specification,without the mentioned options,including complete erection,testing and commissioning. Budgetary Prices: Power Plant,without tank farm USD 65,600,000.00 Tank farm,incuding civil works USD 30,500,000.00 Some itemsin the above mentioned Section 4 "Scope of supply'_are quoted optionally:. Engine wear parts for the first 8,000 operating hours Budgetary Price:USD 302,700.00 Engine diagnosis system 'CoCoS EDS'and software. Budgetary Price:USD 124,500.00 The above stated prices are valid for delivery FOB European North Sea port,in accordance with INCOTERMS 2000,includingseaworthypacking.As an option we quote for delivery DDU to Crooked Creek Site, in accordance with INCOTERMS 2000.The equipment would be reloaded onto barges in a seaport at Alaska,for instance in the Goodnews Bay.The barges would be shipped on the river Kuskokwin to Crooked Creek. Budgetary Price:USD 5,81 8,000.00 This optional price for delivery DDU (Delivery Duty Unpaid),is calculated according to the freight rates which currently apply and is for guidance only.We suggest that in the event of an order being placed,you will settle the freight costs at the time of delivery,as they will incur. Price _conditions Terms of payment Warranty Delivery time MAN BxXw The budgetary price is in USD for delivery FOB European North Sea port,not stowed,in accordance with INCOTERMS 2000, including seaworthy packing. The budgetary price is calculated for delivery of equipment not later than May 31st,2004 and for completion of commissioning latest by December 30th,2004.Assuming an order is placed before the end of June 2003. The budgetary price is net.Public fees,such as taxes,customs duties,stamp fees etc.,which arise in connection with the signing of the contract or its execution,and which are to be paid outside Germany,are not included in our price and would have to be borne by the customer.Value added tax is not included and would be charged in addition as actually levied by law. All our submitted documents form an integral part of our quotation. Variations in quantities or technical modifications of the quoted extent may result in adjustments of price and delivery time. We have calculated our price on the assumption that payment shall be effected out of an irrevocable letter of credit,free of charge to us,confined by a German bank acceptable to us.The price is payable as follows: -20%down payment after placement of the order -80 %against usual pro-rata shipping documents,latest however 30 days after notification of readiness for despatch, in case shipment is delayed or becomes impossible for reasons beyond our control. The letter of credit is to be established in our favour immediately after signing the contract for the full contract amount minus down payment and must allow part shipments and the shipment on deck of IMDG goods (=dangerous goods)which,as a rule,are contained in our deliveries (for example sealing compound, 'paints).Shipment of such goods below deck is not permitted by the Seafreight Ordinance. We are quite prepared to discuss alternative payment conditions. The period of warranty shall be 1 year after the equipment is put into operation.In any case,it shall terminate 18 months after delivery FOB or after notification of readiness for shipment has been given. MAN B&W Diesel is presently able to offer the following delivery schedule:: 6 engines +6 alternators:approx,9 months Diesel auxiliaries:approx.8 months Control panels:approx.6-8months Conditions Export Control Exchange Rates MAN Baw The dates are to be understood as delivery ex-works.Delivery time to start with coming into force of contract,fuil clarification of the order,completion of possible financing arrangements and receipt of down payment,whichever is later. Amore detailed and binding delivery schedule and a time frame for project completion can be worked out when the project takes more concrete forms and the overall time frame is known. Our offer is subject to the General Conditions of Delivery AL 92e Conditions for Specialist Personnel Services BF84e ) General Conditions of Supply and Delivery for Products and Services of the Electrical Industry This proposal,respectively the fulfilment of the contractual obligations,are subject to the granting of any export permits ; necessary and that there will be no contradiction due to German or other regulations which have to be observed. The above price can be considered firm as far as material and labour costs are concemed.We have used a currency exchange rate of 1 EURO =1.0734 U.S.dollars and 1CDN dollar =0.6776 US dollar.Any change in these rates,either up or down,at the date of issuing a purchase order,would be for Client's account. AS2e MAN & Generai These Conditions shall apply unless otherwise agreed in writing by the contracting parties. il. 1. Quotations and Conclusion of Contract All quotations shail be subject to confirmation. 2.Technical particulars and data on weights,performance,operating costs,etc.shall not be binding 3. 4. unless expressly stated.MAN B&W Diesel Aktiengesellschaft (MBD)shail retain ownership of and copyright on quotations,drawings and other documents.Such quotations,drawings and documents shall not be disclosed to third parties and shail be returned immediately if so requested,or if no order is placed. These Conditions shail also be deemed to have been accepted by the Purchaser when he accepts deliveries and services of MBD or renders services himself. Other terms and conditions shail not become part of the contract without the written consent of MBD, even if they are cited as contrary to these Conditions. tll,Extent of Supply 1. 2. 3. 4. The written confirmation of order by MBD shall be conclusive for the extent of supply.Additional under- standings and changes shall be subject to the written confirmation of MBD. Electrotechnical material Shall be governed by the conditions issued by the Verband Deutscher Elektro-techniker. If the equipment supplied shall be used outside the Federal Republic of Germany,safety devices shallbesuppliedasagreedupon. in the event of commercial terms being agreed on the method of delivery they shall be construed in accordance with the Incoterms issued by the International Chamber of Commerce,Paris,in the word- ing as valid on the date of signature of the contract. 'Any taxes or other dues or charges payable in the Purchaser's country or in the country of destination in connection with the deliveries made shall be borne by the Purchaser. IV.Prices 1.-_.Uniess otherwise agreed,the prices shall be valid for delivery ex works inclusive of loading at the works,but exclusive of packing,freight,and installation,plus any percentage of value-added tax as fixed by law. The prices are calculated on the basis of the costs as prevailing on the date of the quotation.The rightofpriceadjustmentshallbereservedintheeventofchangesinthematerialprices,wages,freightcosts,or other cost factors. The prices are based on the fallowing mode of payment:One third on placing the order,one third after expiry of the first half of the delivery period and the balance when the equipment is ready for despatch. .Terms of Payment All payments shall be made in cash,without any deduction whatsoever and payment shall be effected on the agreed dates to the bank intimated by MBD.The value-added tax shall be payable upon receipt of invoice unless the advance payments are liable to tax,in which case it shall be payable pro rata on the dates of payment agreed upon.If payment by bills of exchange has been agreed upon,such bills of exchange will be received by way of fulfilment. .Counter-claims not recognized by MBD shall not entitle the Purchaser to withhold or offset payment. .Inthe event of the stipulated date of payment being exceeded,MED shall -without prejudice to any other legal claims -be entitled to charge annual interest at the rate of 5 per cent above the basis inter- est rate of the European Central Bank,plus any value-added tax,without any reminder being required. A92e -2-MLAIN Baw 4.lf the Purchaser defautts in his obligations of payment or his obligations arising out of the reservation oftitleorifthereisanysubstantialdeteriorationinhisfinancialsituationorifheshouldsuspendpay-ments,the entire balance shall become due immediately,inciusive of bills of exchange having a latermaturity. VI.Reservation of Title 1.The equipment shal!remain the property of MBD until all claims arising in connection with the contract have been fully settled.This shall also apply if such claims are included in a current account. a)Any processing or converting of equipment,the title of which is reserved or the combination of suchequipmentwiththirdpartymaterialperformedbythePurchaserorathirdparty,shall be performedonbehalfofMB8D.MBD shall be the co-owner of the new equipment arising out of such processingorconvertingorcombinationinproportiontothevalueoftheequipment. b)As a security for the claims of MBD the Purchaser shall assign to MBD his demands from the resaleoftheequipmentuptotheamountofsuchclaims. ¢)The Purchaser shall be authorized to collect his demands.The right of collection by MED shall be reserved. d)If the Purchaser fails to comply with the contract,particularty if he defaults in payment,MBD shallbeentitledtowithdrawandthePurchasershallbeliabletorestitutetheequipmentsupplied.The Purchaser shail be liable for any damage arising in connection with the retum of the equipment.In the event of the equipment having been used,MBD shall be entitled to charge the Purchaser a de- preciation of 25%for the first half year of use and 5%for any further half year commenced,without having to prove the damage sustained., If the law of the country to which the equipment is supplied does not permit a reservation of titie butallowsthesuppliertoreserveothercomparablerights,MBD shall be at libertyto exercise all suchrights.The Purchaser shall undertake at his cost,all such measures as are necessary to render effec- tive and maintain these rights to the equipment supplied. 2.During the period of reservation of title or any other right in accordance with subclause 1 above,the Purchaser shall insure the equipment against all relevant risks,with the proviso that MBD shall be enti- tied to all rights arising out of the insurance contract.The policy and the receipts for the premiums shall be presented to MBD upon request. 3.The Purchaser shall advise MED immediately of any distraintor other impairment of the owner's inter- ests. VIL.Delivery 1.The delivery period shall not begin before the receipt and clarification of the documents and approvals to be furnished by the Purchaser and not before the receipt of an agreed advance payment. The delivery period shall have been met whenever the advice of readiness for shipment is sent to thePurchaserpriortoitsexpiry.2.The delivery date shall be reasonably extended in cases of force majeure and unforeseen events aris- ing from circumstances beyond the control of MBD,such as strikes,lockouts,stoppages,rejections,delayed delivery on the part of subcontractors or other delays beyond the contro!of MBD,provided thatsucheventsaffectthetimelyperformanceofthecontractThisextensionshailalsoapplyifthereisal-ready defaultin delivery.in important cases MBO will notify the Purchaser of the beginning and pre-sumable duration of such events.The delivery date shall also be reasonably extended if the Purchaser is in arrears with his payments and other obligations,or if technical and commercial questions are not clarified within a reasonable period of time. 3.Ifa delay is proved to be due to reasons other than those specified in subciause 2 and the Purchaser has suffered a loss on account of such delay,he shail,to the exclusion of any other claims,be entitled to claim a compensation for the delay at a maximum rate of 1/2 per cent for each full week of delay, but not exceeding 5 per cant of the contract price of that portion of the total supply which by reason ofsuchdelaycannotbeusedintimeorputtotheuseintended.Any compensation payable by MBD un- der this clause shall be balanced at the time of final settlement. Ag92e -3-MAN Baw 4.Inthe event of despatch being delayed for reasons beyond the control of MBD,the costs arising fromthestorageoftheequipmentwillbechargedtothePurchaser.If stored at the works of MBD,a mini- mum of 1/2 per cent of the invoice amount will be charged for each month,beginning one month after notification of readiness for despatch. Vill.Passing of Risk The risk shall pass to the Purchaser when the consignment has left the supplier's works.If shipment is -delayed for reasons beyond MBD's control,the risk shall pass to the Purchaser upon notification of readi- ness for despatch.. 1X.Performance of Contract 1.Delivery shall be considered as having been completed when the risk passes to the Purchaser pursu-ant to Clause VIil. 2.Partial deliveries shall be permissible. 3.After the date of completion MBD shail be liable only in accordance with the provisions of Clause XI.oftheseConditions(Warranty). 4.All supplies,even those showing immaterial deficiencies,shall be accepted by the Purchaser,without prejudice to the rights under Clause XI. X.Installation If the equipment is to be installed at site by MBD,this shall be specially agreed.In such case MBD will carry out the Installation of the equipment in accordance with their General Conditions covering Installa- tion. XI.Warranty 1.a)MBD shail warrant expressly assured properties as well as faultiess design,manufacture and mate- rial.Parts which by reason of defects have become unserviceable or the serviceability of which has been substantially impaired shail,at the option of MBD,be reconditioned free of charge or MBD shall supply new parts.Such new parts shall be supplied at the cost of risk of MBD and delivered to the European destination or European port,customs duty unpaid.Extra costs for airfreight and ex- press deliveries shall in any case be bome by the Purchaser. b)Any failure of Diesel engines to meet the warranted performance and consumption ratings may onty be proved by an acceptance test carried out at the supplier's works.Unless otherwise agreed,such acceptance tests shall be carried out in accordance with applicable ISO regulations in force on the date of the tests. Classified marine engines are,in addition to be above provision,subject to the respective rules and regulations of the Classification Society agreed upon. Engines not normally subject to an acceptance test shail be tested at the Purchaser's request and expense. in the event of Diesel engines failing to meet the performance and consumption ratings during the acceptance test,MBD shall,to the exciusion of any further legal consequences,alter or replace attheiroptionsuchenginesattheirexpensewithinareasonableperiodoftime.if the warranted per-formance and consumption ratings are still not reached after such alteration and replacement in- cluding consideration of the usual tolerances,MBD shail pay for each per cent of reduction in per- formance or of increase in fuel consumption,as against the warranted ratings,a penalty amounting to 1/2 per cent of the value of the respective engine,but not exceeding a total of 5 per cent of the purchase price of the engine concemed. c)MBD shail warrant any subsequent adjustments and replacement parts installed to the same extent as the original equipment.Parts that have been replaced shall become the property of MBD. d)The liability of MBD for bought-out products that have not become an integral part of the manufac-tured object shall be limited to the assignment of the warranty claims that MBO may have towardsthesubcontractor.MBD shall,however,warrant such bought-out products if their selection or di- mensioning was incumbent on MBD and turned out to be faulty. AQ92e -4- 2.The period of warranty for machines shall commence on the date on which the equipmentis put intooperation.For marine engines it shall commence on the date of acceptance of the ship.In all othercasesitshallcommenceonthedateonwhichtheequipmentisreadyforhandingover.It shail termi-nate 6 months thereafter.In any case it shail terminate not later than 15 months after notification of readiness for shipment has been given.The warranty period for subsequent adjustments and replace-ment parts shall terminate at the same time as that of the original equipment. For the execution of necessary subsequent adjustments the Purchaser shall a)grant the required time and opportunity and b)furnish at his own expense auxiliary labour and equipment and perform any incidental work. The cost of any work carried out beyond regular working hours shall be borne by the Purchaser. The warranty shall not cover normal wear and parts which,owing to their inherent material propertiesortheusetheyareintendedfor,are subject to premature wear.Damage caused by improper storage,handling or treatment,overloading,the use of unsuitable fuels,oils etc.,faulty construction work or foundations,unsuitable building ground,chemical,electrochemical or electrical influences or any othercircumstanceswhichmayarisethroughnofaultofMBOalterthepassingoftheriskshallalsobeex- cluded from the warranty. .The Purchaser may only claim the MBD warranty if a)the equipment was installed and put into operation by MBD personnel,b)MBD have been advised in writing of the claimed defect immediately,but not later than two monthsafterexpiryofthewarrantyperiod, c)the Purchaser has observed the instructions issued by MBD in respect of the handling and mainte- nance of the equipment and,in particular,has duly carried out any specified checks. d)no subsequent adjustments have been carried out without the approval of MBD, e)no spare parts of outside make have been used. .Claims shall become barred at the end of six months from the date on which due notice of the defect has been given. .Moreover,see clause XIV. XI.Right of Purchaser to terminate the Contract The Purchaser may terminate the Contract by notice in writing provided that 1.the performance of the contract by MBD has become entirely impossible.In the event of partial impos- sibility the right of termination shall be subject to the Purchaser proving that the partial delivery is of nointeresttohim.If the impossibility occurs while there is default in accepting delivery or owing to a faultonthepartofthePurchaser,the Purchaser's obligations under the contract shall remain.If theimpos-sibilityis beyond the control of either of the contracting parties,MBD shall be entitled to remunerationcorrespondingtotheworkdone. .the Purchaseris entitled to claim penalty in accordance with Clause Vit subclause 3 in the full amountandhasthereaftergrantedinwritingareasonableperiodofgracetoMBDwiththeexpressstatement that he would terminate the contract after the fruitless expiry of this period and can prove that the set period of grace has been exceeded for reasons other than those mentioned in Clause VII subclause 2. the Purchaser has granted in writing a reasonable period of grace for remedying a defect recognized by MBD and for which MBD are at fault in accordance with Clause X!with the express statement that he would refuse to accept the delivery alfer the expiry of the set period of grace and MBD have de- faulted in observing this period. .Inthe case of subclauses 2 and 3 the Purchaser may terminate the contract only if he can prove that his interest in the delivery is substantially impaired as a result of the delay or defect.* .Moreover,See clause XIV. Ag2e .-5-MAN Raw Xill.Right of Contractor to terminate the Contract MBD may terminate the contract in part or in whole if unforeseeable events considerably change thecommercialimportanceorthescopeoftheservices,or materially affect the operations of MBD,or if the economic situation of the Purchaser should undergo substantial deterioration.This shall also apply whenanextensionofthedeliveryperiodhaspreviouslybeenagreedwiththePurchaser.In the event of MBD desiring to exercise the right of termination,MBD will notify the Purchaser immediately after the signifi-cance of the circumstances has been ascertained. XIV.Extent of Purchaser's Claims MED shail be liable for any damage caused by their officers and executive employees either intentionallyorbygrossnegligence.Furthermore MBD shall be liable if,either intentionally or by gross negligence,servants and agents violate principal contractual obligations.Additionally MBD shall be liable to the full extent under the provisions of the German Product Liability Act. Imespective thereof M8D shall be liable in all those cases covered by the manufacturer's liability insurance maintained by MBD,and to the extent indemnity is paid under this insurance.This manufacturer's liabilityinsuranceisgovernedbytheGeneralConditionsofLiabilityInsurance(AHB). In case MBD fail to comply with stipulated qualities they shall be liable for any damage caused to the goods supplied.For any damage not caused to the supplied goods themselves,however,MBD shall beliableonlyifthisstipulationwasmadefortheverypurposeofprotectingthepurchaserfromthedamageoccurred,Stipulated qualities are those expressly specified as such in the text of the contract. To the extent MBD are liable for gross negligence under subsection 1 clauses 1 and 2,the extent of thisliabilityshailbelimitedtoanydamagedirectlycausedtothesuppliedgoodsthemselves. Any further claims except those specifiedin these Conditions or covered by the text of the contract shall be excluded.This shall particularly apply to more extensive contractual or statutory claims for damages. XV.Contractual Rights not to be transferred or assigned The Purchaser shall not be entitled to transfer or assign his contractual rights to a third party without the express consent of MBD. XVI.Jurisdiction and Arbitration 1.The place of jurisdiction for all disputes arising out of the contract-including actions on negotiableinstrumentsanddocuments-shall be Augsburg.MBD may also bring an action at the place of thePurchaser's registered office. 2.in the event of arbitration proceedings being agreed with a Purchaser having his registered office out- side the Federal Republic of Germany,any disputes arising out of the contract or in respect of its valid- ity or the vaiidity of the arbitration agreement,shail be finally settled,to the exclusion of legal proceed- ings,under the Rules of Conciliation and Arbitration of the International Chamber of Commerce in Paris,by a court of arbitration composed of three arbitrators,appointed under such Rules,As long as no recourse to arbitration has been made,the contracting parties shall be free to bring an action at the competent court at the place of the defendant party's registered office. XVI.Law applicable and binding force of Contract _ 1.The Contract shall be governed by German Law.UN-Convention on contracts for the international saleofgoodsshallnotbeapplicabie. 2.In the event of part of the contract being ineffective,the validity of the remaining portion shall not be affected,provided such ineffectiveness is without prejudice to the essential features of the contract. BF 8&4e MAN I.General Baw These conditions shall apply for the secondment of specialist personnel,unless the contracting partieshaveagreedotherwiseinwriting. tl.Quotation and conclusion of contract 1.All quotations shail be subjectto confirmation. 2.These conditions shall aiso be deemed to have been accepted by the Purchaser if he accepts the services rendered by MAN B&W Diesel AG (MBD)or if he renders services himself. Ill,Extent of Services rendered 1.The written confirmation of order by MBD shall be conclusive for the secondment.Additional under- standings and changes shall be subject to the written confirmation of MBD. 2.MBD shall be responsible for the observation of legal or other regulations at the place where the ser-vices are rendered only as far as the Purchaser has appropriately informed MBD of such regulations. 3.All dues (taxes,fees,customs duties etc.)becoming payable outside the territory of the Federal Re- public of Germany in connection with the fulfilment or processing of the contract,shail be borne by the Purchaser. IV.Remuneration 1.Unless otherwise agreed,the services rendered by the specialist personne!shall be charged on the basis of the costs incurred andin accordance with the rates listed on the enclosed sheet. 2 The rates quoted in the enciosed sheet shall be understood exclusive of any VAT percentage fixed by law. 3.The remuneration is calculated on the basis of the costs as prevailing on the date of the quotation.The right of remuneration adjustment shall be reservedin the event of changes in the wages or othercostfactors. V.Board and lodging 1.On MBD's request the Purchaser shall undertake to arrange suitabie accommodation for the special- ist personnel and to lend assistance in procuring food.In the event of the Purchaser providing board and/or lodging for the specialist personnel,the costs thereof shail be agreed upon and settled directly with the specialist personnel,as these costs are included in the allowance rates. 2.If lodgings cannot be obtained in the neighbourhood of the site of work,the time for travelling be- tween the lodgings and place of work shall be charged as working time whenever the distance is greater than 3 km.In the event of the specialist personnel using public transport,the costs incurred thereby shall be bome by the Purchaser.The same shall apply to the transportation of equipment. Vi.liness 1.In the event of illness during employment,payment of the allowance shall be continued for the time during which the specialist personne!must remain at the place of work owing to iliness.During hospi- talisation at the piace of work the allowance shail be reduced to the rate mentioned on the enclosed sheet.!f it is necessary for the incapacitated specialist personnel to return home,the travelling costs including allowance and hourty rates for the travelling time shall be borne by the Purchaser. 2.For services rendered abroad,any costs arising in connection with illness or accidents,¢.g.costs of medical treatrnent,hospital care or similar treatment,and medicine,shail be borne by the Purchaser. Vil.Work sheets and invoices 4.The working time shall be arranged by the Purchaser with the specialist personnel,and the actualworkingtimeshailbecertifledbythePurchaser. 2.MBD will present monthly accounts based on the work sheets.The final accounts shail be submitted to the Purchaser within a reasonable period after the completion of the work. BF 84E -2-MAN Baw VU.Terms of payment 1.All payments shail be made,without any deduction whatsoever and free of any expenses,to MBD's bank account on the dates agreed upon.The value-added tax shall be payable upon receipt of in-voice unless the advance payments are liable to tax,in which case it shall be payable pro rata on the dates of payment agreed upon.If payment by bills of exchange has been agreed upon,such bills of exchange shail be received by way of fulfilment 2.MBD shall be entitled,upon request,to a reasonable advance payment to be effected by the Pur- chaser,or,for services rendered outside Germany,to an irrevocable,divisible free-of-charge letter ofcreditforareasonableamounttobeestablishedbythePurchaserintheFederalRepublicofGer-many,and confirmed by a German bank,prior to the departure of the specialist personnel. 3.Counter-claims not recognised by MBD shall not entitle the Purchaserto withhold or offset payment. 4.In the event of the stipulated date of payment being exceeded,MBD shall -without prejudice to anyotherlegalclaims-be entitled to charge annual interest at the rate of 5 per cent above the basis in-terest rate of the European Central Bank,plus value-added tax,without any reminder being required. 5.If the Purchaser defautts in his obligations of payment,or if there is any substantial deterioration in his financial situation,or if he suspends payment,the entire balance shall become due immediately, inclusive of bills of exchange having later maturity. 6.On MBO's request the Purchaser shall make advance payments to the specialist personnel:the amounts advanced shall be set off against the total remuneration. IX.Duties of the Purchaser 4.The Purchaser shall,at his own expense and in good time,meet all requirements enabling MBD's personnel to carry out the work without delay. 2.The Purchaser shail make available suitable rooms for storage of material,and rest rooms for the specialist personnel on site. 3.The Purchaser shall make the necessary arrangements for protection of individuals and goods on theerectionsite,and shall inform the specialist personnel about any safety regulations in force at thePurchaser's works to be observed by the specialist personnel. 4.In the event of work to be carried out outside Germany,any entry,work and other permits requiredshallbeobtainedbythePurchaserathisownexpense. X.Period of secondmentAnyinformationgivenbyMBD with respect to beginning,duration and completion of the secondment of the specialist personne!shail be non-binding.The specialist personnelis instructed to carry out the workasquicklyaspossible. XI.Completion The contractual services of MBD shall be considered completed when MBD have made available to the Purchaser for the specified period the appropriately qualified specialist personnel agreed upon. BF 84 E -3-MAR Saw XIl.Warranty The work of the specialist personnel will be carried out on used items or on items manufactured eise- where and under the responsibility of the Purchaser.To the exclusion of further claims,MBD shall as- sume warranty for the appropriate qualification of their specialist personnel,to the extent that they shall replace unsuitable specialist personnel. -XIIL.Liability 1.The Purchaser shall not be entitled to claim damages or raise any other contractual or iegal claims against MBO and their servants,unless such damages or claims have been confirmed in writing.This also applies to faulty advice. 2.Regardless of the above,MED shall be liable to pay damages to the Purchaser to such extent as the existing manufacturer's public liability insurance pays damages to MBD.The manufacturer's public I-ability insurance is governed by the General Conditions of Liability Insurance (AHB). XIV.DeliveriesIfiternssupplied by M&D are used during the work,then the conditions of delivery for spare parts shallapply,where these are not appended,they can be obtained from M&D on request. XV.Contractual rights not to be transferred or assigned The Purchaser shall notbe entitied to transfer or assign his contractual rights to a third party without the express consent of MBD. XVI.Offsetting clause MBD reserve the right to set off any debts,whether due or not yet due,and future debts owed by the Purchaser to MAN Aktiengesellschaft or to any company in which GHH AV has a minimum holding,di- rect or indirect,of 50%,against any debts owed to the Purchaser by MAN AG or any of the subsidiariesindicated(the Purchaser will be provided with details of the ownership structure of these subsidiaries onrequest).The Purchaser also agrees that all securities placed with MBD shall also serve as securities for those.debts owed by the Purchaser to companies described in the previous paragraph.Conversely,all securi-ties placed by the Purchaser with these companies shail aiso serve as securities for debts owed by thePurchasertoMBDirrespectiveofthelegalgroundsonwhichtheyhavearisen. XV.Jurisdiction and arbitration 1.The place of jurisdiction for all disputes arising out of the contract-including actions on negotiableinstrumentsanddocuments-shall be Augsburg.MBD may also bring an action at the place of thePurchaser's registered office. 2.In the event of arbitration proceedings being agreed with a Purchaser having his registered officeoutsidetheFederalRepublicofGermany,any disputes arising out of the contract,or in respect of its validity or the validity of the arbitration agreement,shall be finally settled,excluding legal proceedings, under the Rules of Conciliation and Arbitration of the Intemational.Chamber of Commerce in Paris by a court of arbitration composed of 3 arbitrators,appointed under such rules.The arbitrators specified by the parties will nominate the third arbitrator.As long as no recourse to arbitration has been made, the contracting parties shall be free to bring an action at the competent court of law at the place of the defendant party's registered office. XVII.Law applicable and binding force of contract _1,The contract shall be govemed by German law. 2.In the event of part of the contract being ineffective,the validity of the remaining portion shall not be affected,provided such ineffectivenessis without prejudice to the essential features of the contract. SCOPE OF SUPPLY MAN B&W Diesel Canada Ltd presents the following technical solution fortherequested70MWDIESELPOWERPLANT. 1 Principal advantages of Diesel power plants MAN B&W Diesel offers a complete range of appropriate generat- ing systems.Our four-stroke engines are available for power plants with engine outputs of up to 23,850 kW.The Diesel engine provides the highest thermal efficiency and permits the most eco- nomical conversion of primary energy into electricity. Power plants equipped with modern MAN B&W four-stroke Diesel engines offer the following principal advantages: -Low capital investment -_Easy and cost effective installation -High thermal efficiency -Capability to bum arctic fuel oil -High reliability -Easy to extend -High flexibility to meet load demand -Low maintenance requirements MAN B&W engine type 48/60 The quoted engine type belongs to the environment friendly,mod- ern MAN B&W family of medium-speed four-stroke Diesel engines comprising the types L 58/64 -L+V 48/60 -L 40/54 -L+V 32/40. All four engine types are designed with the same construction principles and are equipped with the same new and future- oriented design characteristics. Technical solution MAN B&W Diesel proposes a solution with 6 MAN B&W engines 18V48/60,four-stroke,18-cylinder,18V-design (4 engines will be in operation,1 in hot standby &1 in cold standby).This engine is equipped with exhaust-gas driven turbocharger (constant pressure . | system)and charge air-cooling system. 1of in 3.2 Baw Engine main data 48/60 Bore 320 mm Stroke 400 mm Speed .514 rpm - Mean effective pressure 22.6 bar Piston speed 10.3 m/s Design conditions Ambient air temperature 30 °C MAX Ambient air temperature -40 °C MIN Wet bulb temperature 20 °C Altitude above sea level 300 m Power output (per engine) Mode of operation ISO conditions -_Site conditions' Max.contin.rating (MCR)18,900 kKWinech 18900 kWnech Electrical output (At altema-18,427 kWa =18,427 kWa= tor terminals)23,034 kVA 23,034 kVA Frequency 60 Hz 60 Hz Power factor 4 0.8 0.8 Voltage 13.8 kV 13.8 kV The engine rating complies to 1SO 3046-1:2002.The overload matter is ruled in ISO 8528-1:1993,i.e.for engines for electrical power generation,the engine will be blocked at 110 %load of the MCR whereas the 10 %will only be used for short periods for re- covery and prevention of a frequency drop in case of application. It is necessary to provide additional engine power for governing purposes only.This additional engine power shall not be used for the supply of electrical consumers., The above-mentioned mechanical output can be achieved up to 36 °C ambient temperature.At higher ambient temperatures,the engine output will automatically be reduced. Depending on the power plant concept,approx.4-5 %of the elec- __trical power output has to be considered internally for auxiliaries. Based on this assumption the net output of the plant is at least 70 MW during the operation of 4 engines at full load. 'at site conditions as defined in section 3.2 2 of 10 3.4 5.1 Consumption rates (per engine) Mode of operation ISO conditions -_Site conditions? Specific fuel oil consump-176 gkWh (177.5 g/kWhtion(sfoc)*: , Lubricating oil consump-tlon™™0.8 gkWh 0.8 g/kWh '*-Tolerance of sfoc +5%related to mechanical output without attached pumps,according to ISO 3046/1:1995.Using fuel ofl with LHV =42,700 kJ/kg. *Tolerance of lube of consumption 20%related to mech.output at 100 %load. Space requirementsThespaceasperenclosed layout proposal C11 74500-0408 iis'required. The Diesel power plant is designed in a modular way and can easily be extended by adding new units to cope with rising load demand. Scope of supply MAN B&W Diesel to act as supplier of Diesel generating equip-ment and associated services as follows: Engines -6MAN B&W engines 18V 48/60,turbocharged,with two- stage charge-air cooler,suitable for operation on 700cSt/S0°C -Blowof valve for charge air system -For turbocharger:2 sets of spare parts and 1 set of tools -Standard engine spares -Standard and special tools for servicing and inspection of the engine -Hydraulic tools -Electric valve cone grinder -Electric valve seat grinder -Main engine special tools for maintenance procedure OPTIONAL EQUIPMENT: Engine wear parts for the first 8000 hour engine operation 2 at site conditions as defined in section 3.2 3 of 10 5.4 Foundation equipment (per engine) Engine rigidly mounted on a steel foundation frame.Mounting of the frame (elastically)and a two-bearing generator (rigidly)on a common steel-reinforced concrete foundation block.Generator coupled to the engine by means of a flexible coupling. -Steel foundation frame with integrated lubricating oil service tank -Spring-loaded isolators for resilient,vibration-isolated mount- ing of the steel foundation frame,with equipment for lining and . fixing the isolators -Calculation of the foundation block and drawing up of accompanying formwork and reinforcement plans -Flexible coupling between engine and alternator Engine control and monitoring equipment (per engine) -Scope of equipment for control,monitoring and operating the engine and the auxiliaries,to be accommodated in a controlcabinetwhichisprovidedbytheelectricalequipmentsupplier -Additional devices for monitoring and controlling of the com- mon auxiliaries -Resistance thermometer Pt 100 at each crankshaft bearing to be connected to the main bearing temperature monitoring unit which is provided by the electrical equipment supplier -Exhaust gas temperature mean value monitoring system for installation in monitoring cabinet. -Switch cabinet,completely wired,with automatic control for starting air compressor OPTIONAL EQUIPMENT: Engine diagnosis system 'CoCoS EDS' Common systems /Modular design in order to optimise space utilisation as well as installation,some systems like lubricating oil,cooling water,and leakage oil are in- stalled on one common module skid (auxiliary module).The auxil- iary module is installed adjacent to the counter-coupling side of theengine.The module contains equipment marked with "and is ready piped and electrically connected to a skid-mounted control box. 40f 10 5.5 Lubricating oil system (per engine) -Lubricating oil pump with electric motor” -Lubricating oif heat exchanger ° -Automatic backwash filter -Temperature regulating valve © -Compact unit for lubricating oil bypass cleaning -All necessary piping and accessories inside engine room,Ewithoutpipesupports: 5.6 Two-circuit radiator cooling system Two-circuit radiator cooling system for outside installation with separate circuits for high temperature (charge air stage 1 and cyl-inder cooling water)and low temperature (charge air stage 2 and lubricating oil)consisting of: -Two-circuit radiator cooler -Supporting steel structure for the radiator cooling plant om5.6.1 High temperature cooling system (HT) -Cooling water pump with electric motor * -Temperature regulating unit for cylinder cooling water ” Preheating system for cylinder cooling water and lubricating oil consisting of one common electrical preheater set and plate-type heat exchangers per engine including temperature regulator and piping. -Expansion tank -Rundown tank for excess glycol in summer -Piping inside engine room and to radiator cooling system (dis- tance cooling system to engine room max.8 m),without pipe supports 5.6.2 Low temperature cooling system (LT) -Cooling water pump with electric motor -Temperature regulating unit for charge air cooling water ° -Expansion tank -Piping inside engine room and to radiator cooling system (dis- tance cooling system to engine room max.8 m),without pipe supports §of 10 5.6.3 5.7 5.8 5.9 Waste-heat utilisation from the HT-circuit Piate-type heat exchanger per engine Temperature regulating unit for the heating circuit Piping inside the power plant to all consumers,for heating purposes of the relevant consumers by hot water* Fuel system Arctic fuel oil system (pressurised)with equipment for Diesel oil operation,consisting of: Diesel fuel oil supply pump with strainer,electrical motor (1x for service and 1x as standby)per plant Filter module for Diesel fuel oil (duplex filter)and for heavy fuel oil (automatic backwash filter),each with bypass,per plant Cooler for the dry fuel to keep it under 30 -35 deg C before entry to the engine ' Fuel oil module with change over vaive diesel fuel oil/AFO, flow meter,mixing vessel,circulating pump with motor, steam-heated final preheater,viscosity and control system, duplex filter,switch cubicle;per engine Leakage oil /sludge module with one tank for leakage fuel oil and one tank for leakage lube oil as well as lube oil sludge,with discharge pumps All necessary piping for Diesel fuel oil arctic fuel oil inside engine room Respective accessories Combustion air system (per engine) Intake air filter unit with weather hood,weather blind with bird wire grating,oil bath rotary filter with wetting agent,baffle type silencer with silencing effect of approx.30 dB(A),all neces- sary adaptor pieces and switch cabinet with control and power part Intake air pipe Exhaust gas system (per engine) Exhaust gas silencer,silencing effect approx.25 dB(A) Exhaust gas pipe Insulation material,loose,for heat insulation of the exhaust gas pipe inside power house Respective accessories 6 of 10 Compressed air system -Compressor,30 bar,air cooled,with electric motor -Starting air receiver,working pressure 30 bar -Condensate collector for compressor and starting air vessel -All necessary piping between starting air compressor,startingairreceiverandengine -Respective accessories Auxiliary Boiler -Oil fired boiler acting in standby.Also suitable for heating the charge-air cooler and thus heating the air before entering the engine. -Piping and valves for the boiler Electrical equipment -6 medium-voltage three-phase synchronous generators 13.8 kV -60 Hz -Generator neutral earthing equipment -Medium-voltage switchgear with all feeders and coupling pan- els -Switchboards for control,measuring and protection -Engine monitoring and control system -Station service transformer 13.8 kV/440 V -60 Hz -Low-voltage distribution for auxiliary drives -DC supply system for monitoring and control systems _-Power and control cables up to MV-switchboard -Earthing system inside powerhouse building -Standard spare parts ) 5.13.General services -Basic engineering of mechanical systems -Technical documentation (manuals,spare parts catalogues)in case of order -Delegation of specialists for supervision of installation work and commissioning -Training of customers'staff in manufacturer's workshop and at 'site during erection and commissioning 7 of 10 6.1 6.4 6.5 Turnkey portion Balance of plant,mechanical -Service compressed air system -Powerhouse ventilation and air conditioning -Powerhouse crane and lifting facilities for auxiliary rooms and buildings -Emergency or blackstart generating facility -All piping and respective accessories outside the powerhouse -Supporting structures for silencers,boilers,tanks,pipes etc. -Stacks including structures -Water treatment system -Fire detection and fire fighting system Balance of plant,electrical -HV substation including foundations -Step up transformers (13.8kV /60kV) Cables between the MV switchgear and the substation ". Extemal connections for power distribution,connection to the grid Transport -DDU to Crooked Creek Site -OPTIONAL EQUIPMENT: Delivery of the equipment detailed herein under MAN B&W Diesel scope of supply (Delivery Duty Unpaid to the site in A- laska,in accordance with INCOTERMS 2000) Installation -Installation of all supplied mechanical and electrical power generating equipment,including consumables,tools,handling facilities -Site mobilisation Tank farm -Tank farm comprising -6 Tanks for Diesel fuel oil,capacity approx.18,000 m?each -1 Tank for lubricating oil,capacity 387 m? 8 of 10 6.6 6.7 7A -2 Tanks for sludge,capacity 10 m*each heated by hot water,if necessary,including all relevant pipingandunloadingpumps Raw and treated water storage tank Tank foundations,retention walls,fire-fighting devices and instrumentation,etc. The tank farm will be designed according to the local regula- tions Civil scope -Civil engineering -Preparation of Site (assuming no complications and not taking into account 'Permafrost'),establishment of basic infrastruc- ture. -Soil preparation and reinforcement (Not taking into account the affects of 'Permafrost') -Calculation of the soleplate below the foundation block -Foundations -Construction of the power pliant buildings -LW power distribution-,lighting-systems,communication sys- tems,clock,siren system with respective accessories,inside and outside the power house building Lightning protection and earthing system of entire plant -Sanitary equipment -Steel gratings,supporting structures and steel stairs etc. -Elevated floor in the electrical annex -Cable ducts and covers,break-throughs,protective screens etc. -Water distribution system and connections Rain-,waste-,oily water-sewage-collection,separation,drai- nage and discharge system Miscellaneous -Site management List of exclusions Balance of piant,mechanical -Dismantling and re-assembling of the engines and/or placing 9 of 10 7.2 7.3 MAN Baw the engine(s)onto the steel foundation frame(s)in the Alaska harbour or even at site Unloading harbour at the site in the river Kuskowin,with allfacilitiesforfuelandJubeoiltankers Insulation material for the storage tanks,including erection Exhaust gas after treatment system Heating piping and accessories for heating purposes outside the power plant,such as central heating of Crooked Creek housing and public buildings NOx-reduction plant (quoted separately) Balance of plant,electrical -Transmission lines -Substation installation -=Lifting structure to place the engine on the foundation frame -Special cost's for transport and erection in Alaska -Water and electricity supply . Civil scope -Piles or other special foundation methods -Costs for special requests of works in arctic areas,such as 'PERMAFROST'. Miscellaneous -.Dismantling of existing installation parts and preparation for erection of the new material -Wear and insurance spare parts for all the quoted scope. -Customer witnessed acceptance tests in our resp.our subsuppliers'works -Permits,studies and approvals for the installation and opera- tion of the power plant -Custom clearance -Supply of consumables including fuel and lubricating oil for start up and commissioning of the power generating equip- ment -First filling of all operating media (like fuel oil,lubricating oil, grease,hydraulic oil,additives etc. 10 of 10 Germanischer Lloyd GicCertificationGmbH CERTIFICATE The Germanischer Lioyd Certification GmbH,20459 Hamburg, herewith certifies that the company MLALINI)MAN B&W Diesel AGBwStadrbachstraBe1,86224 Augsburg,Germany has established and maintains a Quality Management System relevant for Development,design,production,installation,servicing and licensing of Diesel engines and turbochargers for ships and power plants as well as casting of nodular cast iron and grey cast Iron components Germanischer ioyd Certification GmbH has audited the company.Evidence was providedthattheQualityManagement.System fulfills the requirements of the following standatd: DIN EN ISO 9001:1994 The validity of this certificate is subject to the company applying and maintaining its Quality Management System in accordance with the standard indicated.This will be monitored by Germanischer Lloyd Certification GmbH. The cartificate Is valid until 14.12.2003 Hamburg,29.05.2001 ” Certificate No.OQS-2306 HH (X%-P.Schroder} 3606/2 Hd and QS-2308/2 HH TGA-ZM-07-91-00'This cartificats is vaild only in connection with certificate QS-2306/1 HH, £8 NBLISS DAs Germanischer LloydCertificationGmbH Gic CERTIFICATE The Germanischer Uoyd Certification GmbH,20459 Hamburg. herewith certifies that the company MAN B&W Diesel AG IMLAINI }Diesel enginesE3EXVATIstactbachstrage1,86224 Augsburg,Germany has established and maintains a Quality Management System relevant for Develapment,design.production,installation,commissioning,servicing and licensing of Diesel engines for ships and power plants.including engineering,procurement and construction up to turnkey power plants,as well as the required project management Germanischer Lloyd Certification GmbH has audited the company.Evidence was provided that the.Quality.Menagement.System fulfills the requirements-of.the following standard; DIN EN !SO.9001:1994 The validity of this certificate is subject to the company applying and maintaining its Quality Management System in accordance with the standard indicated.This will be monitored byGermanischerLioydCertificationGmbH. The certificate is valid until 14.12.2003 Hamburg,29-05.2001 Certificate No.QS-2306/1 HH ” f s, TGA-ZM-G7-91-00 4 Dr..Weber)(KP.Schréder) This cartiheate a valid onty in connectiad with canificate 04-2306 HH -QMI issues this certificate to: MAN B&W DIESEL CANADA LTD355WyecroftRoad Oakville,OntarioL6K.2H2 Canada which has demonstrated that its quality system is in compliance with: ISO 9001-1994 The following scope of registration applies: Engincering design and life cycle support of diesel engine power systems. Certificate Number:011564 SIC Number:3519 Date of Original Registration:March 27,2001DateofCurrentRegistration:March 27,2001 Date Registration Expires:December 14,2003 Acmodindbyhe Q7ifqIwdIyQMI 90 Burnhanithorpe Roud West,Suite 300Mississuuga,Ontario,Canuda LSB 3C3Telephone:(905)272-3920 Facsimile:(905)272-3942 A Division of CSA luternational - -iNet = Robert KN fittin President sefdioeeemonnntans6EmeeEceeneeKemereeprone geen eeea Bo2dSreeullaneWickaclakua)iss l3 *. SS fected ELIScree¥ abt 8 ke 6 3)akTRYWalEEEERETTTSdotadesnate,oolTERE or z ; f fei1patedbrPoceaTERPRE:loteiaieesfai i "he t Got:tinaf $ t . $ : ces es @ a? ' a=6- : j fon ELS ey, fe Pre Himn nt onpaeeytaaALT i ' . ' 3 )x | Sort . preieaas tytiesotSosoxseatsos ' Lana idPoteet j ped ' Sil iusiaiabial oie * 4 é R@B "1 E S fied E - ® Cry ' : . " 3 (el= yp . ! :eeeChip} : en Hyhaltl - " i oe Ql it (> + eee 3) nal 2 tae i ¢ae "Ti sibeibe ani:ae E wet # * a >” nl & is fu . -i) | eedfae cee eee 7 are BGs me, 4 IC ! wo whe once pr | | af Sa at rH 4 ay :if 3 TT 2 uf 'a WO Leroi weeeae eee : ma 2RSooA See Reeese Cyu 9g 3N}009 so9s/Ra+ --Liewe9 ee nt kel4 C5 ,2 a Pe Pn Pon Pon Pon Gor Pn Dem Pon Pn Pn Pn'|*"|.r 1 aod \ 1 i |' 4 Burtceicgae ¢CONTROL ROOK OWITCHOEAR /CONTROL ROOM 6 =18V 68/608 RADIATOR COOLING Essmceaeseree bese e 04)|ied eae neve sented=Bideeee TeWITHOUTOBLIGATIONpenntonspote I ¥+4 eee 2 ersKoesa?=."od Lead iSaas: e: Transport-Anhingevorrichtung Suspension -Device 12500. he OY ;(0 } (_)f . - ;UW),Y C)oe ('ROSIN NSANSA ay _=Lptetoty=tot HeSinsinestetstctestntestntet: |Sa Ty so"v °.iy Fi)ttt Trt +t "yy |: 6 Schwerpunkt 2 -_7 Point of Gravity ;Medortyx Geswachits -Sdatag Type.18V 48/60 Weight:320 000 kgfelprenicanapedtmatTypthe Anschlagpunkte zum Verzurren 4-WateNe MDP 54193 Lending Wer 330 000 ky Lasch Points SWL wes ids cvuuWs awe s&h oF wh rw Che Ubihves 4105732 be WARTSILA 718 795 O04Telephone678-957-6211 201 Detense Highway,Suke 100FeaTT10-448-0570 Aarepols,Maryiend 2140) To :PES,Inc.Frorm :Wayne M.Elrnore Amn,:Rafal Berezowski Department >Sales 678-427-0125 Your ref.:Your email dated 4/2/03 Our ref.:Wantsila Offer Ne.O34AN04009 Copy ;Chris Whitney Date :April 41,2003 13 Subject :Donlin Creek Mine . Clurgent (C]For Review J For information 5 Please comment 7 Please Reply -ASAP Dear Rafal, We are pleased to provide budgetary pricing and performance information for Equipment and Services for a planned diesel fueled power plant at a site In Donlin,AK.The attached scope of supply listing is for #plant using 5 X 18V46 gensets (N+1 configuration).The 18V46 has the lowest fuel consumption of all Wartsila engines in a simple cycle arrangement.However,this arrangement will not provide your minimum net power cequirement of 70 MW with 4 units cunning.Therefore,we have also included a table below which summarizes power output and estimated net heat rate for simple cycle arrangements using 5 X 18V46,10 X 18V32,and for a combined cycle arrangementaddingasteamturbinegeneratortoeitherthe5X18V46or10X18V32enginepowerplant.Note that total plant outputs are shown with 1 genset not running (N+1). {Contiguraton |Grose kwiuntt |Steam trbine |GrovekWtotal]NetkWtotal Net Heat Rats t.-_¥output kW (4x480r9x32)|(4x46 or9x 32)|(TUAWhatLHV)5 x 16v06 SS 47,024 Not applicable |68,096 66,053 7240 5 X 18V48 CC 17,024 4800 72,898 70,853 7403 10X 18V32 SS _|7823 Not appicable |70.407 88 6148 VOX 18V32CC |7823 4,860 7a 73,155 7608 Maximum ambient temppratrg:77 °F Altitude:450 f{asiGeneratorvoltage13,800 V Frequency:80 Hz Power factor.9.80 Service voltage:480 V Date:April 11,2003 :Page:1 of 13 Fuel : Diesel Genset emissions for the 18V46 genset measured at generator terminals: Pollutant Uncontroited Downstream of emissions (gram/kWh)|aftertreatment (9/kWh)NOx 42.2 2.43 co 0.87 9.43 SOx 1.97°1.97 Particulates 0.21 0.21 *fuel sulfur assumed to be 0.5%by mass We estimate an 80%reduction efficiency will be required of the SCR system to reduce NOx emissions to "comfortably”under 450 mg/Nm3,which is what Red Dog indicated to us ae their target NOx level.Reduction of up to 90%ts possibile.Approximately 85 -90% reduction efficiency will be required of the Oxidation catalyst to reduce CO emissions to 100 tons per year.This is accounted for in our budgetary pricing for the SCR/Oxi catalyst system. 'Heat recovery capability: Any of the proposed plant configurations have the capability to provide substantially more hot water than the amounts for the heating systems described in your email request.As an example,4 X 18V48 gensets can produce over 58 MMBTU/nr of 170F hot water using the engine jacket water heat circuit alone.The combined cycle configuration may make the most sense here due to Its superior heat rate and its ability to provide the hot water as a "free”by-product of the steam turbine condenser system. Pricing: The attached Scope of Supply listing is for a simple cycle 5 X 18V46 plant built by Wartsila. The table below summarizes our budgetary equipment and services pricing for the various power plant configurations and our estimated EPC pricing.The EPC pricing is tor Indicative purposes only,and reflects current costs for a midwest USA rural site with non-union labor,Most of the risk and cost unknowns for this project would have to do with the civil works.The foundations for Wartsila plants are "slab on grade”type construction, without a basement.If the excavation coste are reasonable and if the cost of concrete is reasonable,the cost to construct the plant should not be greatly beyond typical costs.Ifyouhaveanyfiguresfortheseparamsterswecanadjustourpricingaccordingly.Thesamecommentappliestolaborcosts. |Date:Apel 11,2003 ;Page:2 of 13 OM Lif 4UU9 awe se Ct WwvavuwI YW Plant Budgetary Budgetary Budgetary Budgetary Budgetary EPCconfiguration;equipment cost |equipment cost |equipment cost EPC cost of |cost of simple cycie of STG and CC |of SCR/Oxi simple cycie |combined cycleequipmentcatalystsystem|plant (incl.plant (incl.SCR/Oxi)SCR/Ox!)5 X 18V46 $25,400,000 $5,500,000 $1,735,000 $42,450,000 _|$50,200,00010X18V32_|$21,520,000 $7,275,000 $1,990,000 $38,300,000 |$48,500,000 Equipment price conditions: The equipment pricing is for delivery of the equipment not later than Novernber 20,2003. For later delivery the price will be increased by 0.5 %for each month up to the date of delivery.The price does include customs duty,but does not include any taxes or any otherchargesoutsidethecountryoforigin. Payment terms: To be determined.Appropriate payment security to be provided by the Buyer. Delivery terms: ) CIP US Port,duty paid,according to Incoterms {atest edition.We have NOT included barge delivery to the Donlin Creek jobsite due to the lack of time to solicit bids from freight forwarding companies.: Delivery time: Equipment delivery time is within six months of technically and commercially clarified orderanddownpayment.Typical delivery time for an EPC power piant of this size is within 12 months or order. Validity: The equipment and services pricing in this offer is valid until May 20,2003. Availability guarantee: -Wartsila operates approximately 100 power plants around the world.It is our practice to make availability guarantees only when we have Wartsila personnel involved in the powerplantoperation.Once an equipment configuration (or two options)is chosen,Wartsiia willbehappytomakeaproposalforO&M which includes an availability guarantee. We trust our offer meets with your approval and look forward to further discussion.Should"you require further information,please do not hesitate to contact us. Page:3 of 13 wre eer www were -ew eemwww ee WARTSILA Scope of Supply Section Description QTY Supply by Supply by A POWER GENERATION Al GENERATING SET ENGINE Engine model:W18V46 operating on diesel oll;speed:514 rpm;outputPrelubricatingoilpump 5 x Engine instrumentation 5 x A1.2 GENERATOR Generator:13,800 Vor;60 Hz 5 BASE FRAME Common base frame 5 x ELASTIC MOUNTING Stee!springs (set)5 x COUPLING,FLYWHEEL Flexible coupling|CoverGeneratingset assernbly A16 FIXING EQUIPMENT Fixing equipment for auxiliaries (set)5 x FLEXIBLE CONNECTIONS Flexible hoses and bellows (set)5 x A1.8 PLATFORMS Engine maintenance platform prefabricated 5 x A2 MECHANICAL AUXILIARY SYSTEMS A2.1 FUEL SYSTEM A2.1.1 LIGHT FUEL OIL SYSTEM Light fuel oll unloading pump unitLightfuelollstoragetankLightfueloiltransferpumpunitLightfueloildaytankLightfueloi!day tank equipmentLFOfirelollunit Piping and vaives light fuel oil system (set) LUBRICATING OIL SYSTEM A2.2.1 ENGINE LUBRICATING OI SYSTEM Lubricating oif thermostatic three-way vaiveLubricatingofautomaticmainfitter onxAnxx UWNNWNMMMOM>AthMDate:Apri 41,20035 .Page 40713 Ut ssl U0 ave be ce wve VU '.oeae WARTSILA Section A222 A2.4 A2.4.1 A2 4.2 Description Lubricating oil heat exchangerPipingandvalvesenginelubricating oil system(set)Engine lubricating oil pipe insulation (set) PLANT LUBRICATING OIL SYSTEM Lubricating oil unloading pump unitLutricatingoi!storage tank:fresh oilLubricatingoiltransferpumpunitLubricatingoilmaintenancetankLubricatingoilstoragetank:used oilcoy”and valves plant lubncating oil systemse COMPRESSED AIR SYSTEM Starting air DottieStartingaircompressor unitControl!and working air compressor unitPipingandvalvescompressedairsystem (set) COOLING SYSTEM ENGINE COOLING SYSTEM Thermostatic valve low temperature systemThermostaticvalvehightemperaturesystemLowtemperatureexpansiontank High temperature expansion tank Preheating unitCoolingradiator Pipe module Piping and valves engine cooling system (set)Cooling system pipe insulation (set) PLANT COOLING SYSTEM Maintenance water tank unit (fresh water)foe and valves maintenance water systemset, CHARGE AIR SYSTEM Charge arr fitterChargeairsilencer Expansion betiows charge air systemDuctingchargeairsystem(set) EXHAUST SYSTEM Exhaust gas silencer Expansion bellows exhaust systemDuctingexhaustgassystem(set) Insulation exhaust gas ducting (set)Exhaust gas stack pipe Date:April 11,2003 QTY aakodnbohwdAmHNNNSAOUOUMEUT|Scope of Supply Supply by Supply byWartsilaOthers x? x x x x Xx x x x x x x x x x x x x x x x x x x x x x x x x x x x Page:5of13 wl oof UU aucew oc wwe Vuwiw WARTSILA Section A2.8.2 A2.8.4 A3.3 A3.4 Description STATION SUPPORT SYSTEM OILY WATER TREATMENT SYSTEM Oily water transter pump unitBoilerwashingwatertankOilywaterbuttertank Oily water treatment unitSiudgetankSiudgeloadingpumpunit(any and vaives oily water treatment systemsetStuagedisposal EMERGENCY DIESEL GENERATOR SETBiackstartunit STEEL STRUCTURES Steel structures for auxiliary equipment support cevse structures for charge air duct support (set)Steel structures for exhaust duct support (set)Steel structures outside buikding (set) ELECTRICAL SYSTEMS MAIN SWITCH GEAR Generator cubicie Neutral point cubicle Bustie cubicle Outgoing feeder cubicleGeneratorcubiclecables (set)Generator neutral port cabies (set)Out cubicle cables (set)Cable terminations and cable fittings STATION SERVICE SYSTEM Station auxiliary transformerLowvoltageswitchboardStationtransformercables(set)Engine auxiliary panelLowvoitagecables(set)Cable terminations and cable fittings DC SYSTEM OC system power plant control EARTHING SYSTEM Safety earthing systern CONNECTION WITH LOCAL INDUSTRY Local electrical study Data:Apel 11,2003 "AWNOUI AnUobabobwaouwsak>OU)aahScope of Supply Supply by Supply bywartsilaOthers x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page:6 of 13 wll ear awwe ees aw 2aRLe WARTSILA Section A4 44.6 81. B16 Description Local interconnect studyDistributioncable Physical connection with focal industry AUTOMATION SYSTEM (Extended type) INSTRUMENTATION Field instrumentation CONTROL PANELS Common section centralized control pane)Engine wise section centralized contro!pane! Local engine contro!panelLocal(auxiliary)control panels OPERATOR'S STATION Operator's stationReportstationUninterruntedpawer supply (UPS) CABLES AND ACCESSORIESContro!and instrumentation cables TOOLS Engine and turbo maintenance tools (set)General tools for workshop (set) CIVIL WORKS &STRUCTURES POWER PLANT BUILDINGS ENGINE HALL Superstructures,engine hallEarthworks&substructures,engine hallEarthworks&substructures,generating setsInletventilation,generator sideinletventilation,auxiliary sideOutietventilation,roof monitor Plumbing &sanitary instaliations,engine hallEtectrification,engine hallFiredetection,engine hallOverheadcrane,engine hallMonorailhoist,engine hall FIRE FIGHTING STRUCTURESFirefightingcontainerEarthworks&substructures,fire fightingcontainer: Earthworks&substructures,fir water tankfe)8 ructures,f}rtanFirewaterpumpmainunit”:* Dete:April 11,2003 QTY abadoAebohohokodobadobahohohhehehabofwuxMxxMmKMKKKKKxScope of Supply Supply by Supply byWartsilaOthers x x x xxPage:7 of 13 1Sa WARTSILA Scope of Supply Section Description QTY Supply by Supply by indoor hose rack station Exterior fire hydrantFoamunit Portable fire axtinguisher;CO2Pipingandvalvesfirefightingsystem (set) B2 ANCILLIARY SERVICE BUILDINGS B2.3 GUARD HOUSE Superstructures,guard houseEarthworks&substructures,guard houseVentilation,guard houseAirconditioning,guard housePiumbing&sanitary installations,guard houseElectrification,guard houseFirefighting,guard house B2.5 ADMINISTRATION BUILDING Superetructures,administration BulidingEarthworks&substructures,administration buildingVentilation,administration buildingAirconditioning,administration burdingPlumbing&sanitary installations,administrationbuildiPlectrification,administration buildingFirefighting,administration bullding B3 OIL STORAGE AND CONTAINMENT AREAS DAY TANK CONTAINMENT AREA Earthworks &substructures,fight fue!oi)daytan Earthworks &substructures,oily water bufferan Earthworks &substructures,sludge tankEarthworks&substructures,concentrated sludge tank'Earthworks &substructures,lubricating oilstoragetank:fresh oilEarthworks&substructures,lubricating olfstoragetank:esed oi!Earthworks &substructures,lubricating oil xmaintenancetank FUEL STORAGE CONTAINMENT AREA Eennwors &substructures,light fuel ol)storagetan Earthworks &substructures,dike bottom Earthworks &substructures,dike wall Earthworks &substructures,pipe support Date:April 11,2003 Page:Bof 13aNuaaan«KMMeayOeaeaeehohahanhodahoohxbadMdOEKEOMsas@&etwoodwDxMKxaanWDxxx WARTSILA Scope of Supply Section Description QTY Supe by Seppiyby B3.3 FUEL UNLOADING STATION Superstructures,fuel unloading station.Earthworks &substructures,fuel unloading station Plumbing &sanitary installations,fuel unloadingstationElectrification,fuel unloading stationFirefighting,fuel unloading stationEarthworks&substructures,pipe support B4 AUXILIARY STRUCTURES 64.1 COOLING SYSTEM STRUCTURES Superstructures,radiator(s)Earthworks &substructures,radiator(s)Earthworks &substructures,pipe suppart EXHAUST GAS DUCTING AND SUPPORTSTRUCTURES.Superstructures,exhaust gas stack 1 x Earthworks &substructures,exhaust gas 4 xstack(s) B4.4 OILIWATER COLLECTION AND SEPARATION °STRUCTURES Oily water collecting sumpSuperstructures,oily water transfer pump shelterEarthworks&substructures,oily water treatmentun Piumbing &sanitary installations,olty watertreatmentunit Electrification,oily water treatrnent unitFirefighting,oily water treatment unit BS POWER TRANSMISSION AREAS AUXILIARY TRANSFORMER AREAS Earthworks &substructures,station auxiliary 1 xtransformer. Fence,around station auxiliary transformerEarthworks&substructures,blackstart unitcontainer 86 SITE WORKS Earthworks,soil stabitrzation (piles,soilreinforcement,etc.)(if required)Existing elements on piotat (demolition,protection,cleaning,top soil removal,atc.)(if required)Earth excavation on pict (if required)Rock excavation on plot (if required)debed«3Bahodxxx«KMMannxeKeeSeeae?"x«K«MKuMKXhtahxxakohoh.Oeste:Apri 11,2003 Page:9 of 13 oO oe wi bet ewww &V¥s ae vewwsaAwuw -WARTSILA Section ci C5 CSs.1 Description Filling on plot (if required)Pavements,roads and parkinPowerplantsurfacecovering (gravel)Fence,around power plantPavements,curbs and rain water drainageRoadtoplantFuelpipetoplant Water pipe to plantSewagepipetoplantTelephonefinestoplant SERVICES ENGINEERING Preliminary engineering-Basic engineerinDetailedmechanical engineeringDetailedelectricalengineeringDetailedcivilengineeringDetailedheatrecoverysystemengineeringDetailedSCRsystemengiveeringEnvironmentalstudy/modelingSitesurveySoilpenetrationtest INSTALLATION installation of mechanical equipmentinstallationofheatrecoveryequiprnentInstallationofelectricalequipment Installation of civil superstructures,airconditioning,ventilation systems,electricalsystems,fire fighting sytems,plumbing andsanitaryinstallations,etc.installation of civil earthworks &substructures and siteworks TESTING AND COMMISSIONING WORKSHOP TESTS Test according to standard program TESTS AND COMPLETION AT SITE No load test On load test TRAINING TRAINING AT WARTSILA FACILITY Basic training (number of man weeks)Travel Board &lodging trainees Deta:April 11,2003 QTY solachwohohokwdahobohodahodahofobohobohohodoohnbohnan16 a=Scope of Supply Supply by Supply bWartsilaOthersy x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page:10 of 13 UT bat awww eweee Ce WARTSILA Section C5.2 Description TRAINING ON SITE Mechanica!instructor (number of days)Electrical instructor (number of days)TravelSova)&lodging training instructor (number ofaysTrainingmaterial(per person) DOCUMENTS PRELIMINARY DESIGN General site layoutsGeneralpowerhouse layoutsGenera!fiow diagram draftsGeneralelectricalsinglefine diagram drafts BASIC DESIGN General site layoutsGeneralipowerhouse layoutsFlowdiagramdraftsElectricalsinglelinediagramdrafts DETAILED DESIGN Drawings (set)Parts licts (set)P&ID's USER MANUALS Engine operation and maintenance manualsEnginesparepartscatalogue TAXES /DUTIES /PERMITS /INSURANCE import dutySalestaxand local taxes Construction permitting,approvals.stamps.etc.Local business permitWaterpermit.emission permit,etc.Permitting proceduresBuildersnskinsurance Freignt insurance EXW to FOBFreightinsuranceFOBupto(CPT US Port)Freight insurance from port to siteGeneralcommercialliabilityinsuranceWorkerscompensationandemployers liabilityinsurance Property and liability coverage TRANSPORTATION (CPT US Port)Packing and marking of equipmentExportclearance Cate:Apri 11,2008 QTY ,kehad8otokwdahwkokwhwkOWWWWWWoiobScope of Supply Supply by Supply byWartsilaOthers x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page:11 of 13 wwe ser awww WARTSILA Section Description Transportation of equipment from piace ofmanufacturingtoportofshipmentOceanfreightofequipmentfromportofshipmenttoportofdastinationUnloadingofequipmentatportofdestinationimportclearanceTransportationfromportofentrytowarenouse-Transportation from warehouse to project siteUnloadingofequipmentatplaceofdestination CONSUMABLES inidal fillings for fuel cilInitialfillingsforlubricating oll Initial chemicals for water treatment initial fillings fresh engine waterFuelforstart-up and testingElectricitysupplyduringconstructionWatersupplyduringconstruction Ovte:April 11,2003 QTY abdabubeafodwtokAahohohohScope of Supply Supply by Supply byWeartsilaOthers x x x x x x x x x x x x x x Page:(2 of 13 WARTSILA Section AS AS AG.1 Description HEAT RECOVERY SYSTEM STEAM GENERATION Feod water tank Blow down tank Feed water pump.Exhaust gas boilerCirculatingpumpunitSteamdrum Chemical dosing unitSteamheader Condensate return systemSteamturbinegeneratorand condenserPipingandvalvessteamsystem(set)Steam system pipe insulation (set) EMISSION CONTROL SYSTEMS DE-NOx SYSTEMSCRsystem.includes,reactor Jon fh,POTD muectionequipmenammoniaingpum:contr parre|interconnectionpipin 9 Romp veUreastoragesilotankBYOOTHa)Piping and valves SCR syste ryOXIDATIONCATALYSTSYSTEM Deve:April 11,2003 Exhibit A Scope of Supply Optional items QTy adorSAWNNUD-DDadPage:13 of 13 AxumonepHoe O6mectso "AHTEPSIHEPTOCEPBEC” 117630,Mocxsa, Boposupacanf mapx.3A van{095)120 8496,936 0029 éaxc:(095)936 0010,936 4146 Joint Stock Company "INTERENERGOSERVIS” 3A,Vorontsovakiy park, Moscow,117630 tel:(095)120 8496,936 0029 fax:(09S)936 0010,936 4146 E-mail:ies @spaceru Precision Energy Services,Inc. Mr.Rafal Berezowski Project Manager Pages:9. Sub:Diesel generator Dear Mr.Berezowski, sets. Me /2so«H%>OF 93 Please accept our excuses for the delay of several days.We tried our best 1o be ready with the proposal before April 7,but needed some more time. The present proposal is not a constant.Any issue can be discussed and that would be our pleasure and main task to comply with the requirements of the Client. Looking forward to receive your respond soon and further instructions. Best regards, A.V..Rybinsky Executive director 709853 TIHTIY INTERENERGOSERVICE has considered the documents telated to working out the feasibility study of the power supply project,installation of electric devices,and costs concerned withCrookedCreekpowerplantinAlaskaInthisconnectionourcompanypresentsthefollowing proposals: FO PE LY LE The main equipment includes a diese!low-speed engine manufactured by the MAN BQW DieselA/S's license (Germany -Denmark).Power is generated by means of ten diesel generators withheatrecoveryandauxiliarysystemsthatarerequiredforreliableplantoperation.Generators of SGD-7095-6.3-28 type manufactured by the Electrosila plant,Russia,are used.These diesels can operate using both heavy oil fuel of up to 700 Cts viscosity at 50°C and up to 5%of sulfur content,and diesel fuel DF 2 proposed by the Customer.A fuel heating and circulation system is providedforfuelpreparation.The Russian and European manufacturers will deliver the mechanical andelectricequipmentinaccordancewiththerequirementsoftheworldstandards.The designactivitiescanbeperformedeitherbytheRussiandesignersorbydesignersthattheCustomer proposes.The construction and installation works can be performed either by the General Contractor-the equipment Supplier,or by any other manufacturer as per the Customer request.To reduce terms of installation works of the power station the equipment will be delivered in modular configuration.If necessary,the Supplier will also render the services of supervisor-engineers that supervise over installation,start-up,commissioning,testing,and training of the plant operatingpersonnelAseparatecontractcanbeconcludedforafter-sales service of the plant for a period of 10 or more years,as per the Customer request. Characteristics of a single plant diesel unit of 11 L35MC-S type are given in the following table: Installed maximum continuous mechanical rating,MW 7,040 Electric power at base load.MW 6,78 lOverload electric power.MW Asabient air temperature,°C from -SQ to +40 | Air temperature rn the turbine house,°C .from +8 to +45 J Rated current fremuency .Hz Se 60 ; Rated vottzgs,Y__.Bv the Customer Temperature of external cooling water system,°C iLp to +32 Temperature of internal cooling water system.°C l+$0 (mimimum) Time of startup from the point of a startup signal generation to the [8 .;ing ¢| Discharged gas volume at maximum continuous rating,kg/h $5420 Number of sequential startups without makeup of starting air vessels |Not less than 6 Duration of continuous diesel no-load operation.h 5.».[Not less than ] Scope of automation,not lower wo.S|Third degree as per GOST R 50783-95 and diesel as per .14228-80 Number of working hours per a vear,b/vear Not less than 8500EnginefuelrateNumberofworkingboutsDst-a veath/veattypicalsonditionsoh kW pb)ee 176") |Cylinderoi]rate,g/(k Wh)0,8 -1.4 Pier anneal rate.Kelle h).0.1 ice life,vears _.45 C3 Note:*)calorific value ofliquid fuel 42 700 kJ/kg (10 200 kcal/kg). Environmental factors -The main factors that impact upon environment are noise,vibration,and gas exhaust taking into consideration for power plants with internal combustion engines. Noise . Noise produced by a powerunitis kept within the required normsto a greatér extent due to the wall panels of the building and minimum quantity of hatches,air ducts and other openings in the walls. An insulation degree of the building depends on local requirements.High requirements are notpresentedduetorelativelylownoiseproducedbydouble-contact engines.A standard noise level ofengines11L35MC-S does not exceed 103 dB(A)at a distance of 1 m from a noise source,while it reaches 110-115 dB(A)for four-contact engines. Vibration High frequency vibration created by low-speed engines makes a structure noise about 10-20 dB below that of medium-speed engines.Excitation sources of engine vibration are of cyclic nature and determined by rotating and forward-moving masses: °1-st external moments (in horizontal and vertical direction); *2-nd extemal moments (in vertical direction); »guide force moment of X-type and N-type; °axial oscillation; . *torsional oscillation. Vibration of the plant depends on interaction between the engine and foundation,as well as subsoil under foundation.Careful research of soil under the plant designed is carried out separately for each case to obtain the so-called damping effect of the subsoil.The concrete foundation of the engine and generator is designed in such a way that dynamic factor are compensated,and noise and vibration levels do not increase the preset values. Emission levels . Due to NOx,SOx,CO,particles and hydrocarbons the diesel engines impact upon environment.| Regardless of the fact that emission of low-speed engines is significantly lower in comparison withmedium-speed and motor engines,technologies are available to decrease emission that could be used to meet the highest future requirements if they are provided.The values of gas emission specified inthetablewillnotbeincreasedforenginesof11L35MC-S type at 2.5%sulfur content in the fuel. Effective power (on the engine shaft)se kW "(7805 17040 2S32h.=(3547.|ae Tey fate roa 7s Ys0 Fuel rate kg (1417:41249 930 634 Discharged gas rate kefn 164924.159420 47409 35580 .. Discharged gas rate am'h {51160 {46842 36894 (28016 Oxygen,02 |oe eee |e 1448 $153 [184 |16,7 - Carbon dioxide,COs 1%(4,43 414 5 14D.°I316 Water vapors,HsO 1%5,41 15,33°-.:{$26 .{$,13 .° Sutfurous anhydride,S02.°°":ppm ==510°-= PHAM PRICE AND INDICES OF THE PLANT DIESEL UNIT The price of the diesel power plant,including the stand-by unit amounts to USD 100 335 840 within the scope of supply and services related to this Proposal. Price structure The basic component prices of the plant _ Equipment,including: ®engine unit e electric generator e auxiliary mechanical and electrical optional equipment for the diesel unit °standard set of tolls and spares ®supervision over engine and generator - 1x}1L35MC-S 1 x SGD-7095-6,3-28 1 set 1 set 1 set Taking into account 70 MW power generation under conditions of maximum electric loads of the power plant it is required to install 10 diese]-gemerators and 1 stand-byunitwithinitialdatagiveninthetable. DESCRIPTION,Dimension Result YNITIAL DATA 1 MECHANICAL POWER OF THE UNIT.KW 7040 2EFFICIENCYFACTOROFTHE GENERATOR %264 3 POWER OF AUKLIARY MECHANISMS [Kha re4INTDDMBEROFDIESEL-GENERATORS =nes m§THERMAL POWER OUTPUT BY EACH OF THE ONTTS kWAmit 1916(Geal hfunit)-]1,65 6.THERMAL POWER OUTPUT OF THE PLANT UNDER (wiwiyear '(19160 'JOPERATION :(Teal/year)-..116,5 7 FUEL RATS OF THE ENGINE (SO cdiions)-es gkW h)176 2] [RULE RATE RIGREASE TOLERANCE =%3 9 CALORIFIC VALUE OFLiguip FUEL 003:Kealkg |9 500 OAM 10.[PERIOD FOR COMMISSIONING THE |-ST UNIT (FROM jmonths 15 |THE DATE OF PREPAYMENT) i PERIOD FOR COMMISSIONING THE SUBSEQUENT months 1,8 UNITS (FROM THE DATE OF COMMISSIONING THE 1-STUNIT)- 12 MINIMUM NUMBER OF HOURS OF ELECTRIC POWER jh/year [8500OUTPUT PRICE PRICE OF DIESEL WITHIN THE STANDARD SCOPE OF [USD/pes 3 445 100SUPPLY. 2 PRICE.OF GENERATOR IN COMPLETE SET.UiSDynes 122000i 3 PRICE OF HEAT-RECOVERY BOILER OF DISCGARGED jUSD/pcs ps 100 |GASES : 4 PRICE OF MECHANICAL AUXILIARY EQUIPMENT USD/pes 1 883 200 | 5 PRICE OF ELECTRICAL EQUIPMENT USEYpcs 733 290 i §SUPERVISORY INSTALLATION OF EQUIPMENT (BY USD {758 O70 i AGREEMENT OF THE PARTIES); if |7 CONSTRUCTION WORKS AND BUILDING STRUCTURES |ltso [Not supplied ' 8 CONSTRUCTION OF INFRASTRUCTURE AND ROADS .[USD Not supplied | 9 DESIGN WORKS (BY AGREEMENT OF THE PARTIES)%(USD)9 (782 680) 10 TOTAL PRICE OF THE UNIT USO 9 122 000 YH TOTAL PRICE OF THE PROJECT jUSD 100 335 840 ; 12.JPRICF OF RIN-IN KW USDAW 1.295 Notes; terms of delivery -FOB,port of St.Petersburg (additional agreement is possible); 2.term of after-commissioning warranty -18 months SCOPE OF SUPPLIES AND SERVICES It.Name Meas.unit Qty |a DIESEL ELECTRIC UNIT _va AUXILIARY MECHANICAL AND ELECTRICSYSTEMS © * 2.1.[Liquidfuelsystem =Rie 7 ee 2.2.|Lubricating oilsystem -_ 23.{Circulating oil system) 2.4.Sree air system 2.7.|Fire-extinguishet system of the diesel engine ow|petbomflopetoedootdlp2.8.iControl,monitoring,signaling,and protection system of diesel-electric port 2.9.|Toots and devices 2.10.[Standardsetofspares aEstellate3.SERVICES .3.1 Supervision work for Geel end pena3.2.iCommissionmg works _\3.3.(Guarentee testing 3.4.|Executive documentation ae 3.5.{Operating manual weCeNeerypresrer Sulfuric anhydride,SOs --7 Hydrocerbons,CH ppm =j13 24,8 27,3 «(27,0 Carbon oxide,CO ppra 10°20 40 60 Nitrogen oxide,NOx ppm 1150 1200 1100 ={790 Nitrogen oxide,NOx (mass content)kg/h 113 115 §3,7 152.6 Nitrogen oxide,NOx (specific content}GAWh [14,73 16,2 15,73 [14,84 Solid particles mg/nm?|-20 -- RON TD PAYMENT TERMS AS PER THE CONTRACT 1 20%down payment -not later than 30 days after signing the Contract; 2 80%-documentary confirmed irrevocable letter of credit; 3 letter of credit terms can provide hold of 20%from the letter of credit sumimposedontheSellertobepaidasperformancebondforProperexecutionoftheContractasfollows: e 15 %after delivery,installation and commissioning (in accordance with a schedule agreed by the Parties); e 5%0n the expiry of a warranty period. This Proposal is valid till 30.07.2003. etiwoenawowriet awr ITANNRALO TU on yy _'= ||¢ | 000000 |HhHAT Hn 95 MW ELECTRIC POWER &DISTRICT HEATING PLANT BETHEL SITE SCOPE DESCRIPTION AND BUDGETARY PRICE ESTIMATE NUVISTA LIGHT &POWER COMPANY DONLIN,ALASKA. JUNE 2003 penteen oe eedieeesaeet degSee SeeES SLeresimmesti iisscefeo ee anaes OSS Sink PREPARED BY: SI ESI,Engineering Services A Division of The Keith Companies 370 North Wiget Lane,Suite 210 Walnut Creek,CA 94598 REVISION|DESCRIPTION |DATE BY LEAD STAFF ES]PROPOSAL NO.:001878.00.009 INTRODUCTION. 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 TABLE OF CONTENTS PAGE PROJECT INFORMATION SITE DATA CODES AND STANDARDS MECHANICAL DESIGN BASIS CIVIL DESIGN BASIS NAANWwWwSTRUCTURAL DESIGN BASIS ELECTRICAL DESIGN BASIS INSTRUMENTS AND CONTROL SYSTEMS DESIGN BASIG...........ccsscsevesceee 18 EXHIBITS:HobPlant Availability and Reliability Heat Balance Diagrams General Arrangement Drawing EPC Price Estimate Budgetary Equipment Prices from Vendors 2 of 25 eTES INTRODUCTION This budgetary estimate has been prepared to provide technical and cost information for use ina Feasibility Study being performed by Precision Energy Services,Inc.(PES).The proposed project site is Bethel,Alaska. The project described herein represents a conceptual design and is based on the information provided by PES proposal request for a 95 MW (gross output)combined 'cycle power plant and subsequent discussions with PES personnel.The budgetary estimate can be refined after additional information is received regarding the project commercial operating date,site description,operating mode,load duration characteristics,and complete financial information necessary to evaluate and determine the best practical project to suit the intended purpose. The proposed project consists of three General Electric LM6000 aero-derivative combustion turbine generators (CTG)configured as follows:for normal operation,2-LM6000 CTG exhausting into a common unfired heat recovery steam generator (HRSG)and a auto-extraction, condensing steam turbine generator (STG);and for standby service,1-LM6000 CTG exhausting - to a dedicated unfired HRSG integrated to operate with the STG.The proposed configurationwillprovideduringnormaloperationtherequiredtotalgrossoutputof95,000 kW,measured attheterminalsofthegenerators,whileat the same time deliver up to 200 MMBTU/hr of thermal energy from steam extracted from the STG at 200 Psig for District Heating.Note,however,that the power block is capable of providing 98.7 MW during this winter peak district heating load(200 MMBTU/shr),and 103 MW at Summer time when district heat requirement is less at 130 MMBTU/str.District heating and plant heating loads will be provided by the Package Boiler during emergency condition. 1.0 .PROJECT INFORMATION The EPC budget estimate price provided in Exhibit D is limited to the work associated with the following description.Work excluded is also listed below. 1.1 GENERAL 1 Project Description The Project is an indoor combined cycle power plant with a nominaltotalgrossoutputof95,000 kW,measured at the terminals of the three generators. The project is illustrated in the General Arrangement Drawing No.878-G-201,Rev.A included in Exhibit C. The major equipment include Three (3)GE LM 6000 CTG sets fueled with Distillate Oil No.2 and equipped with water injection to reduce NOx emission.Two LM6000 is required to run during normal operation,and the third unit will be for standby service to provide high plant availability. 3 of25 e One (1)normally operating single pressure,unfired HRSG designed to accommodate the exhaust gas from 2-LM6000 and will generate high pressure steam at 600 Psig and 750 deg F steam conditions (SH outlet)and equipped with Selective Catalytic Reduction (SCR) system to reduce NOx emission from 42 ppmvd to 25 ppmvd. e One (1)single pressure,unfired HRSG designed and dedicated to accommodate the exhaust gas.from the standby LM6000 and will generate high pressure steam at 600 Psig and 750 deg F steam conditions (SH outlet)and equipped with Selective Catalytic Reduction (SCR)system to reduce NOx emission from 42 ppmvd to 25 ppmvd. e One (1)single admission,auto-extraction,condensing STG set equipped with Air-Cooled Condenser e Fuel oil No.2 skid,boiler feed pumps,air-cooled condenser, deaerator,water treatment,condensate &make up water storage tanks,condensate pumps and plant air compressors .¢Blackstart generator and startup &standby package boilerElectricalandcontrolequipment:main and auxiliary transformers,MCCs,Switchgear,and control system. Work Excluded The following is not included in the EPC price estimate: Fuel oil unloading systemTransportationanddockloading &unloading facilitiesFuelOilStorageTanksandforwardingpumpsClearing,grading and site excavationAllfoundationsandplatformstosuit the permafrost condition at thesite Electrical system beyond the generator breakers (main step-uptransformers&switchyard equipment not included)Raw water supply systemWastewaterdischarge/treatment systemInterestduringconstruction(IDC)No soft costs included;i.e.;s Project «development,Owner's Engineer,permitting,legal,financing 1.2 .SPECIAL CONDITIONS The foundations and required platform due to permafrost condition at thesitewillbebyothers. The power plant shall be designed with black start capability. 4 of 25 The Kerth Companes TKX<c 13 1.4 OPERATING MODE During normal operation,two of the LM6000 CTG will be in combined cycle mode while one of the CTGs is in standby service.The exhaust gas from the two normally operating CTG will discharge into a common HRSG to generate steam that is introduced to an auto-extraction,condensing STG where up to 165,000 #/hr (200 MMBTUshr)of steam is extracted at 200 Psig for District Heating.WhenoneofthetwoactiveCTGsistakenoutofservice,the third and standby CTGwithadedicatedandsmallerHRSGwillbeusedtomaintainfullplantelectricaloutput.. It was assumed that the plant operating permit will allow startup ofa CTG using the bypass stack without an SCR module to reduce Nox emissions.OperationsusingthebypassstackwillbelimitedtostartingaCTG.All other operationswillhavetheCTGexhaustpassthroughtheHRSGandSCR,maintaining a 25 ppmvdNoxemissionlevel. The power plant will be provided with a Blackstart Diesel Engine Generator and a package boiler for use during initial startup and testing of the plant,and on theeventthatthe2to3-CTGs were taken out ofservice at the same time. The performance of the plant at normal conditions during summer and winter seasons are depicted in the Heat Balance Diagrams includedin Exhibit B.The proposed project has the following performance characteristics with the 2-LM6000 CTG at full load condition: Summer Winter Gross Output (Gen.Terminal),MW 103 98.7 District Heating Load,MMBTU/br 130 200 (max.) Gross Plant Heat Rate,BTU/kWhr (LHV)7,777 8,115 Gross Plant Efficiency,%43.9 42 Thus,the plant will be normally operating from 92%load (summer)and 97%load (winter)for a 95 MW gross power requirement. BOUNDARY LIMITS The work was assumed limited to be within the site boundary limits or terminal points listed below. 4 Electrical equipment and materials up to the generator breakers (step-up transformers &switchyard by Others) 1.4.2 Raw water piping terminates three feet from the building wall 1.4.3 The following piping was assumed to terminate three feet from the building wall: 1.4.3.1 Industrial and domestic wastewater piping 1.4.3.2 Fuel oil piping 1.4.3.3 Raw water supply piping $of 25 Terence TEES 1.5 =$PLANT DESIGN GUARANTEES Gross power output produced by the plant will be 95,000 kW when using Fuel Oil No.2 and operating on a mode described above and at a design ambient temperature of 45 deg.F. Emissions from the HRSG stack during norma!operation will not exceed the emission concentrations listed below when burning the Fuel Oil No.2. NO,25 ppmvd at 15%Oxygen,corrected NH;Slip 5 ppmvd 2.0 SITE DATA 3.0 2.1 SITE ENVIRONMENT 2.1.1 Plant Elevation Above SeaLevel:5OO0ft 2.1.2 |Ambient Max/Min.Temperatures:50°F/minus 60°F 2.1.3 Design Air Temperature,45°F/40% Dry Bulb/*RH 2.1.4 Wind:-100 mph per UBC 2.1.5 Seismic: . Zone IV,per UBC CODES AND STANDARDS | The plant will be designed and constructedin accordance with the following list of codesandstandards.The codes and standards utilized will be the latest editionsin effect on thedateoftheengineeringserviceagreement. In the event these codes and standards are subsequently modified by theirissuing agency,and should Owner desire such modifications to be incorporated into the proposed plant,then any resulting additional cost,project delays,changesin performance guarantees,etc.,will be considered a changein the work scope. e American Concrete Institute ACI e American Institute of Steel Construction AISC e American National Standards Institute ANSI e American Society for Testing Materials ASTM e American Society of Mechanical Engineers ASME e American Welding Society AWS e Cooling Tower Institute CTI e Heat Exchange Institute HEI e Hydraulic Institute Standards HIS°Institute of Electrical &Electronic Engineers IEEE e Instrument Society of America ISA e National Electric Code NEC | e Occupation Safety &Health Act OSHA e National Fire Protection Agency NFPA 6 of 25 Power Plant Piping ASME B31.1 Tubular Exchangers Manufacturer's Association TEMA Uniform Building Code UBC National Fire Protection Code NFPA Uniform Mechanical Code UMC Uniform Plumbing Code UPC 4.0 MECHANICAL DESIGN BASIS 4.1 42 PLANT AVAILABILITY AND RELIABILITY To further enhance plant availability and reliability,auxiliary equipment will have redundancy,arranged either as 2 x 100%capacity or 3 x 50%capacity units,as practicable.In addition,only reputable manufacturers will be considered as suppliers to the project to ensure quality. See Exhibit A for discussions on plant availability and reliability GAS TURBINE GENERATOR (GTG) Three (3)GE LM6000 aero-derivative gas turbine generators will be used in theproject. Each unit is equipped with the basic GTG scope of supply: e Inlet screen and bellmouth seal e Fuel oil system complete and self-contained on the unit for connection with customer's supply piping. e Air-cooled generator -13.8 kV,60 Hz,3600 RPM,71 MVA,and 0.85 pf.Low maintenance brushless excitation system complete with neutral and line cubicles with CTs,surge protectors and lightning arrestors. e Acoustic and weather enclosure.AC internal lighting and redundantventilationsystems. e Multi stage air inlet filtration system including screening,pre-filter,finalbarrierfilter,intake silencer,and custom designed ducting to plenumchamber.Pre-engineered structural support hardware included. Combustion air heating coil. e Electro-hydraulic start system. Air-cooled lube oil system for gas turbine and generator each with duplexfiltersandallstainlesssteelpiping. Axial circular exhaust discharge flange 7 €25 The Keith Companies TKX<cC 43 e _Fire and gas detection and CO2 extinguishing system serving both turbineandgeneratorcompartments. e Unit control panel for control room mounting includes Woodward fuelmanagementsystem,programmable microprocessor for sequencing,generator metering,Bentley Nevada 7200 vibration monitoring,CRTannunciationofalarmsandshutdowns,and RS-232 link for data logging. e 24V DC battery and charger assembly e Custom designed filter house structural support and associated service ladders and platforms. e Generator factory testing to IEEE 115 standards.Full load string test of gasturbinegeneratorsetatassemblers'factory. e Ten (10)sets of drawings,data package and O&M manuals. e -_Training course for up to ten (10)customer personnel. HEAT RECOVERY STEAM GENERATOR (HRSG)AND STANDBY BOILER The unfired HRSG will be a single-pressure,two drum,natural circulation,topsupportedunit.Heat absorption surfaces will be mounted in factory-assembledmodulestofacilitateconstruction. Heat absorption modules will include a superheater,evaporator,economizers,and condensate heater. The HRSG will also include modules for the SCR Catalyst,a transition ductconnectingtheGTGandtheHRSG,and a free -standing 80 feet high stack. Some of the design features of the HRSG will include: e __All tubes will be formed with extended surface arranged inline for ease ofinspection,cleaning,and maintenance.In addition,access cavities will beprovidedbetweeneachmodule. The inlet ductwork will include a gas distribution system for uniform temperature and flow upon reaching the duct burners or superheater bank. e The inlet duct will include multiple layer insulation e Two-drum design -steam and mud drums. e Modular construction with integral circulators to minimize field welding ofinterconnectingrisersanddowncomers.Modular construction also allowsfactoryhydrostatictestingtoassureeaseofinstallation. ¢Maximized module size to reduce foundation cost and area requirements. _-e The HRSG will be top-supported to minimize upper drum movement and 8 of 25 Thre Keith Conpense:TK: 4.4 45 eliminate expansion joints in the casing around the upper drum.Top-supportalsosimplifiesupperdruminterconnectingpiping. A packaged type water tube boiler will be installed for use during startup and toprovidesteamforfreezeprotection,building heating on the event that all the threeCTGsarenotavailableforservice. STEAM TURBINE GENERATOR The steam turbine will be a single admission,auto-extraction,and condensingunit.The steam turbine steam exhaust flow will be upward and connected to an air-cooled condenser.The steam turbine will service both the normally operating HRSG and the standby HRSG,but sized to handle steam generation from only two LM6000 in operation while delivering 130 MMBTU/hr of thermal energy at 200 Psig steam for district heating. The auto-extraction port will be at 200 Psig and capable of delivering up to 200MMBTU/hr thermal energy for District Heating. The air-cooled STG is rated at 11 MW,13.8 kV,.85 pf and 13 MVA. The STG will be supplied complete with skid-mounted lube oil and control oil systems,local control panel,lineside and neutral cubicles. MECHANICAL SYSTEMS 4.5.1 Steam Systems The HP steam generated in the HRSG will be at around 600 Psig/750 deg. F at the superheater non-return valve outlet.The steam temperature will be set and controlled at this level by a spray attemperator before it is directed to the steam turbine generator. Appropriate steam turbine bypass lines and drain lines will be installed for start-up purposes and emergency operation. 4.5.2 Feedwater System The three (3)50%capacity feedwater pumps take suction from the deaerator and deliver deaerated feedwater through the condensate heater and economizer and then to the boiler drum.The pumps will service both HRSG.The pumps will be provided with minimum flow recirculation line _back to the deaerator.The flow control valve will maintain the water level in the steam drum to pre-determinedrange. The pumps will be capable of delivering feedwater to the HRSG at a pressure at least 3%above the highest safety valve setting on the HRSG, 9 of 2S TKS 4.5.3 4.5.4 4.5.5 as requiredbytheASME code. The pumps will be horizontal multi-stage centrifugal type.The pumps will feature dual volutes for radial balance and opposed impellers for axial balance. The pumps will be capable of withstanding severe load transients caused by steam turbine generator trip and the resulting full load rejection.The feedwater pumps are product lubricated. Condensate System The system includes the air-cooled condenser and three (3)50%capacity condensate pumps.The pumps will be vertical can-type to provide the necessary net positive suction head for unit having a vacuum suction pressure.The pumps take suction from the hotwell or condensate tank of the air-cooled condenser. The pumps transfer the condensed steam in the air-cooled condenser to the deaerator through the condensate heater.Excess inventory of condensate due to load changes is rejected to a condensate/makeup storage tank. The air-cooled condenser will include freeze protection,and comes complete with steam jet air ejectors for startup and removal of uncondensable gases during normal operation. The deaerator will be spray-tray type,and will service both the HRSG. The deaerator storage tank will be sized for a minimum 10-minute hold time,at design load and will be designed to operate at stable condition over the operating load range of the plant.The equipment will be installed on top of the normally operating HRSG. Makeup Water System Two (2)100%makeup water demineralizer systems will be provided.The systems will include makeup water storage tank from where makeup to the HRSG is then pumped from this tank to the condenser hotwell or to the deaerator.. The system will also provide water for injection in the CTG to control NOx emission. Auxiliary Cooling System The system will be air-cooled and is used for cooling miscellaneous equipment such as the lube oil of the steam turbine generator,sample coolers,and other miscellaneous equipment coolers.Two (2)100% 10of25 Tre Kaki:Compernise TK<C cooling water pumps will be provided. Plant Water Systems The plant water system includes the raw water supply system,firewaterandservicewatersystem,and HRSG makeup water system. 4.5.6. 4.5.6.2 Raw Water Raw water supply is by others,and is assumed delivered to thepiatdingwithpipinginterconnectionlocated3-feet from the Fire Protection Systems The fire protection ms will include redundant fire-waterpumpsincludingadieselenginedrivenunit.The source ofwaterisassumedcomingfromthesamesourcefortherawwatersupply. Appropriate detection,alarms will be included in strategiclocationsandsystemactuationwillbeautomaticwhere necessary. Chemical Feed Systems The chemical feed systems include 4.5.7.1 HRSG Chemical Feed Systems Phosphate Feed System . Phosphate feed to the HRSG steam drum will be controlled tomaintainthedesiredphosphateresidualandalkalinityintheboilerwater.The complete feed system will be skid-mountedconsistingof: e One (1)100-gallon stainless steel tank with hinged lid@One(1)electric motor driven tank mixereTwo(2)hosphate piston-diaphragm pumpseOne(1)Iving basket. OrganicFeedSystem Organic feed will be introducedto the deaeratortomaintainthecconductanceinthecondensate.The completefoodoysystemwillbeskid-mounted consisting of: e One (1)100-gallon stainless steel tank with hinged lideOne(1)electric motor driven tank mixereTwo(2)piston-diaphragm pumps. 11 of 25 4.5.8 4.5.9 Oxygen Scavenger Feed System This chemical is feed into the deaerator to remove dissolved oxygen in the condensate.The chemical type will bedeterminedlater.The complete feed system will be skid-mounted consisting of: ¢One (1)100-gallon stainless steel tank with hinged lid ©e One (1)electric motor driven tank mixer e Two (2)piston-diaphragm pumps. Solid &Liquid Waste Discharge Regeneration waste from the Demineralizers will be shipped to theequipmentsupplierfortreatmentanddisposal. HRSG blowdown will be discharge to an industrial liquid waste area.Costincludedforthisterminatesatapipingconnectionlocatedthreefeetfromthebuildingwall. Spent catalysts will be shipped to the supplier for handling. Potable Water The plant potable water system willbe from the raw water supply system.It is assumed that the raw water system when delivered to the plant by others (out of scope)is already treated suitable for human consumption. 4.5.10 Heating,Ventilating and Cooling 4.5.10.1 Building Freeze Protection Freeze protection for the building and various process systems,as applicable shall be provided with freeze protection by steam or electrical means. 4.5.10.2 Building Ventilation Wall mounted fans and intake louvers will be provided for thebuilding.Combustion air will be admitted through louvers located on the upper half of the building walls. 4.5.10.3 Operating &Personnel Areas HVAC systems will be provided for the control room and electrical room only.The electrical room will be ventilated and cooled to maintain less than 85°F temperature.Control rooms will be maintained at 68°F.Introduction of outside ambient air was assumed sufficient for this purpose,i.e.;no mechanical cooling equipment is necessary.The rooms will be heated with 12 of 25 The Kenn Companies TK 5.0 steam,as required for operator's comfort. 4.5.1 Compressed Air Systems Redundant compressed air system for instruments and for maintenance is included complete with dryers,filters and Air receivers. 4.5.12 Ammonia Injection System The system will provide the ammonia solution for injection to the SCR Catalyst for NOx emission reduction from 42 ppmvd to 25 ppmvd. The system consists of aqueous ammonia storage tank,2 x 100%capacity supply pumps,flue gas ducted from the HRSG to the injection skid,and an evaporator.The Ammonia is then introduced to the injection grid located upstream of the SCR Catalyst in the HRSG. The storage tank will be sized for optimum delivery of ammonia to the Site. CIVIL DESIGN BASIS Precision Energy Services,Inc.is handling this with another consultant familiar with thesiteandexpertonpermafrostconstruction. 5.1 §.2 5.3 5.4 5.6 SITE WORK Not Included. CUT,FILL,AND COMPACT Not Included. .DEWATERING Not Included SPOILS REMOVAL AND HANDLING Not Included SITE IMPROVEMENTS Not Included SURVEYING Not Included 13 of 25 uu TKS 5.7 5.9 STORM DRAINAGE Not Included LANDSCAPING Not Included FOUNDATIONS Not Included 6.0 STRUCTURAL DESIGN BASIS BUILDINGS The equipment will be located indoor.The building will be designed to conform to site conditions and architectural environment.The building will provide rooms for administration and control functions and will also mitigate the noise and visual impact.The building will be of prefabricated "sandwich”steel walls and roofing (steel-insulation-steel)and structural steel frame type. The building will be constructed on steel piles support and building platform floor will be poured concrete. The building floor or platform will be elevated,for permafrost considerations, with sufficient clearance with the ground to allow snow to blow through under and to prevent snow accumulation in and around the building to maintain ventilation.. The steel piles and platform are not included in the scope. STRUCTURAL STEEL SUPPORTS Structural steel supports will be designed and erected per the latest requirementsoftheAmericanInstituteofSteelConstructionandtherequirementsoftheOSHA. Major equipment and systems that requires structural steel design include elevatedsupportsforpipingandductworksupport. PLATFORMS Access platforms,with ladders and/or stairs conforming to the OccupationalSafetyandHealthAdministrationrequirementswillbeprovided.Access will be_provided for normal operation and maintenance of plant. 14 of 25 The Kath Corrpanes TKX<X:©sreemaaansagenernie, 7.0 6.4 6.5 EMBEDMENTS AND ANCHORS ; Miscellaneous embedments for support and anchorage of equipment andstructuresagainstconcretewillbeprovidedinsuchamannerastoprovideproperfieldalignment. PAINTING The building,equipment and structures will be painted in accordance withstandardindustrypracticeandappropriateforthelocationoftheproject. ELECTRICAL DESIGN BASIS The plant electrical systems are designed to supply power to auxiliary electrical equipmentandsystems,and deliver the generated power to the transmission/distribution system (yet tobeconstructed).The system incl herein is up to and including the main step-uptransformers,i.e.no electrical switchyard equipment is included. 71 72 POWER STEP-UP SYSTEM The generator step up transformers is not included in the scope of work. POWER GENERATION &DISTRIBUTION SYSTEMS The power generation system will consist of a three combustion turbinegeneratorsandasteamturbinegenerator.The generated power is connected toourstep-up power transformers located outside the building.Auxiliarytransformers,located near the main step-up transformers,will be installed for theplant's auxiliary loads.The generator breakers and transformer breaker will formanassemblyof15kVclassswitchgearlocatedinthebuilding.Connectionbetweentheseelementsandotherrelatedplantelectricalsystemswillbeprovidedbybusduct,conduit,or tray and cable.The generated power will be at 13.8 kV,3-phase,3-wire,60 Hertz. A diesel engine generator will be installed for blackstart and for use during thestartup&testing of the plant., The plant's distribution system will be at 13.8 kV,4.16 kV and 480 volts threephaseandwillconsistoftransformers,switchgear and motor controllers. Medium Voltage Switchgear The generator switchgear will be arranged in an indoor lineup in the building. Distribution Transformer(s) Distribution transformer types to be evaluated based on location.Indoortransformerswillbedrytype,and outdoor transformers will likely be oil "15of25 monen coro |TK 73 7.4 7.5 7.2.3.Motor Controllers Motor controllers are also included. MOTORS Integral horsepower motors will be 460 VAC,or 4,000 VAC 3 phase inductionmotors.Fractional horsepower motors will be single phase,or three phaseinductionmotors.Motors will normally be NEMA design B with Class B or ClassFinsulation.(If the load has unusual torque requirements,motors with otherNEMAdesigncharacteristicsmaybeused.) Generally,motors 250 HP and larger will be 4000 VAC.Motors through 200HPwillbe460VAC,3 phase.Motors less than 4 HP will be 115 VAC singlephase. Motors enclosure selection will normally be according to the following criteria:Outdoors or dusty/dirty environment -WPII or TEFC;indoors in generally cleanenvironment-ODP;covered in normally clean environment -WPI or ODP.SmallmotorsmaybeTEFCorODP. GROUNDING Grounding requirements to be established as part of detailed design.Thefollowingisaninitialguideline. Grounding will be provided to insure safety to personnel and equipment in case ofelectricalequipmentfailuresandtopreventfiresanddamagefromlightningand/or static electricity.Grounding will be in accordance with IEEE Standard Publications No.80 and 142. The generator neutral will be high resistance grounded.This will be through agroundingtransformer.The low voltage (480V)distribution system will besolidlygroundedthroughthedistributiontransformer's neutral.The mediumvoltage(4160V)distribution system will be low resistance grounded throughdistributiontransformer's neutral.Non-current carrying part of electricalequipmentwillbegroundedfromthesourcebyaseparatewiretotheequipment.Large power transformers and generators will have the neutral connected to theplantgroundloopwhereapplicable.Large equipment enclosures will beconnectedtotheplantgroundloop.The ground loop will consist of buried #4/0AWGgroundwirewithdrivengroundrodslocatedstrategicallythroughouttheplant.Taps from the ground loops to Individual equipment will be #2/0 AWG. Grounding design will be based on maximum soil resistivity.Foundation pileswillbeconnectedtothegroundingsystemtoformpartoftheearthconnection. LIGHTING SYSTEM High-pressure sodium (HPS)type fixtures will be used for outdoor areas.Alloutdoorlightingwillbeautomaticallycontrolledusingphotoelectriccells. In the offices,conference room,laboratories,rest rooms and electrical equipmentroom,fluorescent type fixtures will be used.The control room lighting will use 16of25 Trane Comer I 7.6 77 78 dimmable or switched arrangements for adjustable light levels.Other indoor areaswillusefluorescent,incandescent,metal halide or HPS,depending on the task. Emergency exit lighting will be provided in areas where such lighting may berequiredtoleavetheareaonfailureofthenormalpowersource.Emergency exitlightingwillbeincandescent.Emergency exit lighting fixtures will be provided inthecontrolroomandturbine/generator building. The installed illumination levels are tabulated below.The foot-candle valuesshownaretheaverageminimummaintainedlevelsasmeasuredatgroundlevelforoutdoorareasand30inchesabovethefloorforindoorfacilities.The maintenance factor used will be 0.80. Qutdoor Facilities Stairs and Platforms 5 fe Ground Level Areas 5 fe Switchyard 2 fc Storage Tanks 0.5 fc Roadway and Parking Areas $$0.5 fcWatertreatment2fc Interior Areas Control Room 5-50 fc (dimmable)Offices 30 fc Conference Room 30 fc Electrical Equipment Room 30 fc Rest Rooms 20 fe Other General Areas 10 fe COMMUNICATION SYSTEM In plant communication system is included in the estimate.Land telephone line tooutsideoftheplantisalsoallowed. CATHODIC PROTECTION There is no cathodic protection allowed in the estimate. D.C.SYSTEM The existence of a 125 VDC system will depend on the switchgear controlrequirementsandturbineauxiliaries. A 125 VDC system will be provided for the turbine emergency lube oil pump andcontrolfortheswitchgear.System capacity will include the switchgear load plusDClubeoilpumprequirementsasstatedbytheturbinegeneratormanufacturer.The charger will be sized for an 8-hour recharge cycle.Battery system will beExideorequal. 17of25 | Wf cine stom 7.9 UPS SYSTEM A reliable source of power to instruments and shutdown networks will befurnishedasdictatedbyprocesscontrolrequirements.This power supply will be astaticsolid-state UPS (uninterruptible power supply)system consisting of arectifierandinverterwithbatterybackup.The UPS system capacity will be atleast125%of the load for 20 minutes of running time after power failure.Theminimumsizewillbe15kVA.. Upon loss of power,the batteries will service the critical loads. CONDUITS &TRAYS Conduits and trays will be based on good engineering and industry practice and asappropriatetositeconditions. POWER WIRES AND CABLES Wire and cables will be based on good engineering and industry practice and asappropriatetositeconditions. INSTRUMENT WIRES &CABLES Wire and cables will be based on good engineering and industry practice and asappropriatetositeconditions. LIGHTING TRANSFORMERS &LIGHTING BOARDS Lighting transformers,where required,will be the indoor,dry type.Lighting anddistributionpanelboardswillbesuppliedforfeedinglighting,receptacles andsmallloadsasrequired. RECEPTACLES Sufficient 120 V receptacles will be located so equipment can be reached withextensioncordsnotover50feetinprobableworkareas.In all enclosed rooms,sufficient receptacles will be-placed to provide convenient access. 8.0 INSTRUMENTS AND CONTROL SYSTEMS DESIGN BASIS 8.1 8.2 GENERAL Instrument and control systems design will be engineered to provide for the safeandefficientstart-up,operation,and emergency shutdown of the power plant. TYPES OF CONTROLS The following design basis is assumed for purposes of the conceptual design orthisestimate. The plant control system will provide the following: =nenencmronsne ECCS ¢Major equipment and associated auxiliaries will be operated from centralcontrolroom. e Remote indication and group alarms are furnished for local controlpackages. Control System A Control System will include the following equipment:, Two (2)operator displays will be provided.These will be CRT based consoles with function keyboards.They will provide the=operator with aninteractive,visual display of all plant operations.They will include plantdatahighwayinterfacinganddatastoragedevices. 8.2.2 Local Control Panels Locally mounted panels may be utilized for the air compressors,turbine- generator,demineralizers and other miscellaneous systems. CONTROL SYSTEM LOOP COMPONENT DESIGN Major plant systems to be controlled and monitored are: Combustion Turbine/Generator Systems Heat Recovery Steam Generator SystemsSteamTurbineGeneratorSystemCondensate,Feedwater and District Heating SystemsDemineralizerSystem Plant Monitoring SystemAYVSYNE Gas Turbine Generator Systems The gas turbine generators are supplied with a dedicated microprocessorbasedcontrolsystem.It contains the unit metering,protective relaying andcontrolswitches. The control system provides control functions including:fuel,air andemissionscontrol;sequencing of turbine fuel and auxiliaries for start-up,shutdown and cooldown;monitoring of turbine control and auxiliaryfunctions;protection against unsafe and adverse operating conditions. The plant control system will interface to the combustion turbine controlsystemthroughadatalink. The GTG is designed for a "pushbutton”start locally or from the controlroom.Its operation is fully automatic.The remote control from the controlroomisaccomplishedfromtheplantcontrolsystemCRTsviaadigitallinkfromtheGTGcontrolsystem.The plant control system logs analoganddigitaldata.Under abnormal conditions the GT load will be loweredforshortdurationsandwilloperateinefficientlyatlowerloads. 19of25 -|KS iahely+oepectppne: 8.3.2 Steam Turbine Generator The STG will be supplied with standard complete with a stand alonecontrolhandlingallclosedandopenloopturbinecontrols.The control 8.33 system will include: 1.Woodward Governor 505E based turbine loop controls2.Allen Bradley PLC module for turbine safety trip functions3.Allen Bradley PLC for turbine auxiliary control 4.Generator AVR 5.Generator protection relays and synchronizing equipment. Heat Recovery Steam Generator (HRSG)Systems Control of the HRSG will consist of the following loops under control oftheplantcontrolsystemtosafelyandefficientlymaintainsteamheaderpressureandfeedwatertomatchturbine-generator requirements duringstart-up,normal operation,upsets,and shutdown. The HRSG control system will be comprised of the following subsystems: HRSG Drum Level Control System 2.Steam Temperature Control3.Plant Service Steam Temperature Control 4.Deaerator Level Control 833.1 8.3.3.2 83.3.3 8.3.3.4 HRSG Drum Level Control System The HRSG drum level control system will be a conventionalthree-element control system using main steam flow as thefeed-forward signal,drum level and feedwater flow as thefeedbacksignals.Based on demand,the system controls afeedwatercontrolvalvetoadjustfeedwaterflowtotheboiler.The system will be designed to operate on single elementcontrolusingdrumlevelonlyduringstart-up. Main Steam Temperature Control System The purpose of this system is to maintain the final superheateroutlettemperatureatamanuallysetvaluewithmimimumfluctuation.This is a single station,Cascade-type controlsysteminwhichthefinalsuperheateroutletcontrolunitservesasthemasterorprimarycontrolunitandthedesuperheateroutletcontrolunitservesastheslaveorsecondarycontrolunit. Plant Service Steam Temperature and Control Steam header temperature will be controlled through adesuperheaterwithatemperaturecontrollerthatwillregulatefeedwaterflowtomaintaintemperature. Deaerator Level Control SystemThedeaeratorlevelwillbecontrolled from the control room.If 20 of 25 'The Kenn Comperiss TKE 8.3.6 the level is low,make-up will be admitted from thedemineralizedwaterstoragetank.Overflow will be dischargedtothecondensatetank.Level switches will be provided toalarmhighandlowlevelsandtotripthefeedwaterpumpsonlow-low level. Feedwater System Boiler Feedwater systems will be provided with pump minimum flow control.. Boiler Feed Pump Minimum Flow Control Feedwater pump minimum flow control is furnished by the pump manufacturer.This normally consists of an automatic recirculation control valve,which will circulate water back to the deaerator during periods of low HRSG feedwater demand. Deminerali 'The Demineralizer system will be equipped with a programmablecontroller(PLC).The water conductivity will be monitored in the control room. Plant Monitoring System All required plant parameters would be monitored and indicated,alarmedand/or recorded in the control room to facilitate the plant operator withcontroloftheplant.The gas turbine will be interfaced to the plantcontrolsystemformonitoringandtrending. Local indicating devices,pressure gauges,thermometers,etc.,will befurnishedforlocalmonitoringofselectedplantparameters. Grab sample ports will be provided on the condensate,feedwater and mainsteamlinesforperiodicanalysisforothercontaminants.Sample coolers,as required,will be provided. Air Quality Monitoring Equipment Equipment and instrumentations will be provided to monitor continuouslytheairemissionsinaccordancewiththerequirementsoftheairpermit. Stack continuous emissions monitoring systems (CEMS)will be extractivetypeequipment.Continuous emissions monitoring stack gas sampling andinstrumentationequipmentforCO,O02,NOx,and SOx will be provided.The analyzers will be mounted at the base of the stack. The monitors will be EPA certified.A data acquisition system and EPAreportingwillbeprovided. 21 of25 'The Kath Caovpenss TK EXHIBIT A PLANT AVAILABILITY AND RELIABILITY Plant operating availability and reliability depends on the following major areas: Engineering &Construction Maintainability and Operability Equipment and Manufacturers System/Equipment Redundancy Operating &Maintenance Practices Safety Engineering &Construction High plant availability and reliability starts on the drawing board coupled with the construction company of the project.Thisis done through contracting with a reputable engineering andconstructioncompanyhavingthefollowingcharacteristics: Extensive and recent experience on similar project Excellent track record and client references High caliber staff of professional engineers and managers Good Quality Assurance and Quality Control Program Use of good engineering and design practices including;constructability,operability,maintainability,and adherence to safety -Maintainability and Operability The objective of plant maintainability and operabilityis to minimize the complexity and time required for maintenance and to operate the plant with minimum number of operator surveillance.Thisis generally accomplished by the following: Using equipment having features of low maintenance design Equipment designed to be maintained in-place with minimum disassembly and minimum usage of temporary scaffolding/rigging and handling tools. Installation of permanent maintenance platforms where requiredAccessibilityandadequatespacearoundequipment Permanent cranes and hoists where practical Environmental protection,where necessary Equipment and system design selections based on minimizing operator attention Automatic startup and shutdown operation .Manual intervention features of automatic processes Equipment capacity selection to provide maximum turndown,as may be required 22 of 25 Tra eat oom |me ¢Monitoring of systems and equipment to provide operators information for safety and indications for required maintenance e Remotely located control panels properly positioned for operator's visual and physical access in the control room Local control panels properly positioned for operator's visual and physical access Adequate lighting,ventilation and acoustic softening on operational areasAccessiblevalves,switches and other instruments Equipment and Manufacturers The objective here is to procure reliable equipment and to shorten downtime with the availability of Service Representatives and proximity of service shops. e Procure equipment from leading and quality manufacturers that has excellent track record in the industry or similar applicationseProximityandresponsivenessof manufacturer's Service Representatives when called to assist e Proximity of manufacturer's repair or overhaul shop System/Equipment Design and Redundancy The primary objective hereis to provide reliable operation by providing system and equipmentdesignthathasbeenusedextensively&successfully 3in similar application and redundancywherepractical. e Systems or equipment,by their nature of service,requires frequent maintenance or whose loss would cause unit or plant outage designed with redundant system or equipment. e Use of system and equipment design that have been applied in similar applications exhibiting high availability and reliability Operating &Maintenance Practices Perhaps this is the most significant factor affecting the reliability and availability of a plant.The objective here is to minimize unscheduled shutdown of the plant by a well planned operating and maintenance procedures or practices.Some of the elements of good O&M practices are: Having operating staff with the right training and educational credentials Concise,easy to follow maintenance and operating procedures Diligent monitoring and trending the systems and equipment performance Preventive maintenance as recommended by equipment manufacturers Adequate spare parts inventory Membership in a spare engine pool Good housekeeping practices nee Te Kann Comoerion |man Safety Prevention of accidents and resultant injuries contributes significantly to plant availability and reliability.Here are some key OSHA items to consider: e Any hazardous materials should be stored and handled as required by applicable codes and standards , e Rotating equipment shall be provided with appropriate guards against accidental direct contact by operators and dropped tools that could ricochet to cause injuries or damage to 'sensitive equipment,instruments and devices. e Surfaces that are warmer than 120 degrees F that are accessible to operators during routine maintenance and inspection procedures should be insulated. Comfortable working environment , Operators free of prohibited drugs and alcohol Adequate lighting and ventilation Good housekeeping practices 24of25 EXHIBITB HEAT BALANCE DIAGRAM EXHIBITC CONCEPTUAL GENERAL ARRANGEMENT DRAWINGS-COMBINED CYCLE EXHIBIT D BUDGETARY EPC PRICE ESTIMATE (with scope exclusions) EXHIBITE EQUIPMENT BUDGET PRICES FROM MANUFACTURERS 25of25 TURNKEY COST ESTIMATE ZOMBINED CYCLE POWER PROJECT 3ETHEL,ALASKA Jun-03 ENGINEERING AND DETAILED DESIGN EQUIPMENT PROCUREMENT COMBUSTION TURBINE GENERATORS 3 x LM6000 CTG Package HEAT RECOVERY STEAM GENERATOR 2-LM6000 EXHAUST-NORMAL OPERATION 1-LM6000 EXHAUST-STANDBY STEAM TURBINE GENERATOR AIR-COOLED CONDENSER BALANCEOFPLANTEQUIPMENT: BOP-MECHANICAL EQUIPMENT BOP-ELECTRICAL EQUIPMENT BOP-INSTRUMENTATION/CONTROL SPARE PARTS 'ONSTRUCTION MECHANICALPIPING ELECTRICAL INSTRUMENTATION/CONTROLS ARCHITECTURAL/CIVILUSTRUCTURAL STARTUP/COMMISSIONING MISCELLANEOUS BOND AND INSURANCE CONTINGENCY TOTAL EPC PRICE SiKw EPC Price qualifications (work excluded): 1.Site clearing,grading,excavation and paving of parking areas AlaskaEPC for LM6000June03.xds 6/17/2003 - 2.All foundations and platforms to suit the permafrost conditions at the site. GE PROPOSAL POWER CONFIGURATION: 2-LM6000 CTG x 1-HRSG x 1-STG STANDBY:1-LM6000 CTG X 1-HRSG COST $ 6,874,000 2,500,000 10,507,400 3.Transportation and dock loading/unloading facilities for equipment 4.Fuel oil unloading system,storage tanks,forwarding pumps 5.Main Step-up Transformers&Switchyard (electrical scope ends at the generator breakers)6.Raw water supply system7.Waste water discharge/treatmentsystem 8.Interest during construction REMARKS $ 6,874,000 See Exciusions noted below See Exclusions noted below price from GE Nooter-Eriksen price used ({Deitak also contacted) O-R price adjusted origina!Marley price See Exctusions noted below 74,400,000 See Exciusions noted below 23,800,000 13,007,400 118,081,400 See Exctusions noted below 797.85 9.Soft costi.e.:project development,Owner's Engineer,Owner's management cost,financing fees,legal fees,permitting and other consuttant's costs ATTACHMENT 9 Nuvista Light &Power Co. COMBUSTION TURBINE POWER PLANT BETHEL,ALASKA SITE DEVELOPMENT, EARTHWORKS,FOUNDATIONS AND BULK FUEL CONCEPTUAL DESIGN REPORT SEPTEMBER 2,2003 Prepared by: Mike Hendee,P.E. Anchorage,Alaska 98503 Fac $(907)273-1831 See Appendix E for LCMF Report ATTACHMENT 10 Willianamis.,a Williams Alaska Petroleum Inc. Product Specifications:#2 Blended (-15 °F)Heating Fuel Alternative Name:Product 43 PROPERTIES ASTM TEST METHOD Carbon Residue on 10 %BTMS,wt %D §24 coud Point,*F (°C)D 2500 D 1500ConnerstipCorrosion,3 hr @ 122°F (50*C)D 130 Distillation,°F (°C)D 86 Initial Boiling Point 10%Evaporated 50%Evaporated 90%Evaporated Final Boiling Point Residue,vol % Recovery,vol % Flash Point,°F (°C)D93 Gravity,AP]@ 60°F (15.6 *C)D 1208 Gravity,Specific @ 60 °F Density,ib/gal @ 60 *F (15.6 °C) Density,kg/m @ 15.6 °C Heating value,BTU/Gal (gross)D 2015 Pour Point,°F (°C)D9e7 Sulfur,(wt %)D 4294 Viscosity,cSt @ 104 °*F (40 °C)0 445 Water And Sediment,vol %D0 2709 1.)Based on ASTM 0396-88,Table 1,"Detailed Requirements for Fuel Ols”. 2)Typical product quality subject to change within specified limits. 3.)Typical product data based on pre 1999 results. - ey SPECIFICATION * 0.15 Max -58 Max (-50 Max)2.5 Max No3Max Report 419 Max (215 Max) .Report 550 Max (288 Max) Report Report Report 100 Min (38 Min) 35.0 Min 0.876 Max 7.296 Max Report -60 Max (-51 Max) 0.30 Max 1.3 -2.1 0.05 Max Current Revision: TYPICAL ? n 3 0.12 -12 <0.5 1a Previous Revision:April,1999 gDWilliams.Williams Alaska Petroleum Inc. |a Product Specifications:#2 Diesel Fuel Alternative Name:Product 46 PROPERTIES ASTM TEST SPECIFICATION 'TYPICAL ? METHOD .n=176 Ash,wt %D482 0.01 Max <0.001 Carbon Residue on 10 %BTMS,wt %D524 0.35 Max 0.08 Cetane Index,Calculated D 4737 40 Min 49.9 Cloud Point,°F (*C)D 2500 Report 8 Color D 1500 2.5 Max <0.5 Copper strip Corrosion,3 hr @ 122 °F (50 °C)D 130 No 3 Max 1 Distillation,°F (°C)D 86 . Initial Boiling Point Report 409 10%Evaporated Lo Report 497 50%Evaporated Report 551 90%Evaporated 540 -640 588 Final Boiling Point Report 609 Residue,vol %Report 0.8 Recovery,vol %Report 98.9 Flash Point,*F (°°C)D93 126 Min (52 Min)182 Gravity,API @ 60 °F (15.6 °C)D 1298 30.0 Min 33.2 Gravity,Specific @ 60 °F 0.8762 0.8589 Density,Ib/gal @ 60 °F (15.6 *C)7.298 7.153 Density,kg/m*@ 15.6 °C ;858.9 Pour Point,*F (°C)D97 +10 Max (-12 Max)5 Sulfur,(wt %). D 4294 0.50 Max 0.46 Viscosity,cSt@ 104 °F (40 °C)D445 1.9 -4.1 3.567 Water And Sediment,vol %D 2709 0.05 Max Nil 1.)Based on ASTM 0975-96b,Table 1,"Standard Spectficiation for Diesel Fuel Olle".The EPA has exempted the State of Alaska from the low sulfur and dye requirments through 2004 (reference CFR Volume 64,no.122). 2.)Typical product quailty subject to change within specified limits, Approved by: Current Revision:Jan,2001 Previous Revision:April,1999 CERTIFICATE OF QUALITY Tesoro Alaska Company -L,Groleske '.Lab Supervisor PRODUCI:=...|DF2 |TANK:|TK36 |ANALYZED:.-]05/31/02 ASTM SPECIFIED TEST PROPERTY RESULTS LIMIT METHOD Gravity,API @ 60 deg F 35.2 Report D1298 _Gravity,Specific,60 deg/60 deg F 0.849 Report Density,Ib/gal @ 60 deg F 7.07 Report Color-ASTM 0.5 2.0 Max D 156 Cloud Point,deg F VA +20 Max D5773 Pour Point,deg F -7.0 Report DS5949° Flash Point,deg F 169 125 Min D93 Viscosity,cSt@ 104 degF 3.1 4.1 Max D 445 Sulfur,Total,Wt %0.1 0.5 %Max D 4294 Copper Strip Corrosion, 3 hrs @ 122 deg F 1A No.1 Max D130 Net,BTU/Ib 18,421 Report Cetane Index,Calculated 52.8 40 Min D4737 Distillation Temperature,deg F D86 Initial Boiling Point 371 Report 10%Recovered 464 Report 20%Recovered 489 Report 50%Recovered 533 Report 90%Recovered 584 640 Max 95%Recovered 600 Report End Point 618 Report Distillation Residue,Vol %1.0 Report PRODUCT CERTIFICATE OF QUALITY Tesoro Alaska Company PRODUCT:|JetA |-TANK:]35 |ANALYZED:oe]05/28/02 )ASTM SPECIFIED TEST PROPERTY RESULTS LIMIT METHOD |Gravity,API@ 60 degF 437 |Report =DAOS2Gravity,Specific,60 deg/60 deg F 0.8076 ;Report Density,Ib/gal @ 60 deg F.6.74 Report Point,deg F 105 100 Min D 56 iscosity,cSt@l04degF 1.32 1.2 Min Viscosity,cSt @ -4 deg F 4.32 8.0 Max D 445. Sulfur,Total,Wt %0.03 0.3%Max D 4294 Copper Strip Corrosion, 3 hrs @ 122 degF 1A No.1 Max D130 BTU/#,net 18,568 18400 Min Particulate Contaminant,mg/l 0.25 1.0 max D5452 Distillation Temperature,deg F D&6 Initial Boiling Point 292 Report 10%Recovered 329 401 Max 20%Recovered 344 .Report 50%Recovered 390 'Report 90%Recovered 482 Report 95%Recovered ,504 Report End Point 522 $72 Max. Distillation Residue,Vol %0.6 Report E.Brail Lab.Supervisor Williams Alaska Petroleum Inc.WillETEjams.Product Specifications:Turbine Fuel Oil Alternative Name:Product 61,HAGO PROPERTIES _ASTMTEST SPECIFICATION'*TYPICAL? METHOD n=49 Acid Number,Totaling KOH/g D974 0.5 Max Ash,wt %°D 482 0.01 Max <0.002 Carbon Residue,on 10 %BTMS,wt %°D 524 0.30 Max 0.12 Cetane Index,Calculated -0 4737 45 Min 50.6ColorD15005Max<1.5 Copper Strip Corrosion,3 hr @ 122 F (50)C ©D 130 No.1 Max <1 Distillation,°F (°C)D86 Initial Boiling Point Report 479 5 %Evaporated 480 Min (249 Min)540 10%Evaporated Report 562 50%Evaporated Report *625 90%Evaporated 725 Max (385 Max)691 Flash Point,°F ¢C)Ds3 200 Min (93 Min)>206 Gravity,AP]@ 60°F (15.6°C)D 2015 25 -32 .28.9 Gravity,Specific @ 60 °F 0.8654 -0.8871-0.8823 Density,Ib/gal @ 60 °F (15.6 °C)7.206 -7.387 7.348 Pour Point,°F °C)*D 97 Report 40 Heat Ing Value,BTU/gallon (gross)®D 4809 Report 141,444 Heat ing Value,MJ/kg ©D 4809 Report 45 Sulfur,(wt %)D 4294 1.0 Max 0.78 Viscosity,cSt @ 104°F (40*C)D 445 2.0-8.5 7.373 Water and sediment,vol %©D 2709 0.1 Max Na 1.)Based on GVEA specifications. 2.)Typical product quality subject to change within specified imits. 3.)The recommended specifications for transported fuels complying with ADEC Standards for fuel transport (ADEC 18 AAC 75)are 50 %distilled at 645 °F at 50%and 95 %distilledat700°F.These Standards are pertinent to Kabilities for transportersintheclassificationofpersistantandnon-persistant hydrocarbons. 4.)Pour Point Depressant Additives may be used to provide fluidity at colder temperatures.Pour Point Depressed Products may not be compatable with §.)Results based on sample composite. aity Current Revision:February,2001 Abasha Poetroioumn Previous Revision:April,1999 ae Williams Alaska Petroleum Inc.Wyhams.Product Specifications:Gasoline Blendstock -- Alternative Names:Product 54,N+tA Naphtha for Export PROPERTIES ASTM TEST SPECIFICATION METHOD Color,Saybolt D 156 20 Min . Conductivity,CU @ 32°F (Oct-Mar)'D 2624 Report Conductivity,CU @ 60 *F (Apr-Sept)*D 2624 Report Distillation,°F ¢C)D868 Initial Boiling Point 122 Min (25 Max) 5%Evaporated 212 Max (100 Max) 90%Evaporated 392 Max (200 Max) Final Boiling Point 399 Max (185 Max) Distillation Residue,vol%1.5 Max Recovery,Volume %08 96 Min Elemental Composition Sulfur,ppm D 4294 500 Max Arsenic,ppb ICP 100 Max Lead,ppb AA (HGA)30 Max Gravity,API @ 60 °F (15.6 °C)D 1298 Report Gravity,Specific @ 60 *F 0.70-0.78 Hydrocarbon Types: Naphthalenes,vol %D514 Report Aromatics,vol %D514 Report N+A,vol%D 5134 40 Min Olefins,vol %D 5134 1 Max Benzene,vol %D §134 Report Reid Vapor Pres.@ 100 °F,psi D 5191 12.5 Max Kpa @ 37.8°C 86.2 Max 1.)Dupont Stadis 450 (as required) Approved by:oe fy,. Alenka Potroleurs Current Revision: Previous Revision: TYPICAL n=42 156 September5,2000 April 23,1999 Yukon Fuel Company Fuel and Transportation Proposal Donlin Creek For AMEC/NovaGold YFC Market Presence in Alaska ¢Yukon River - *Kuskokwim River ¢Norton Sound ¢Y K Delta *Kotzebue Sound ¢Bristol Bay ¢Tank Farm Operations in Twelve Locations Bethel ¥*¢ Established Operations LO Million Capacity Protected V fairly Deep Channel *Provided by Yutana Barge Lines LLC *10 Sets of Equipment *Decades of Experience with Shallow Dratt Vesse 8 *Specific Kuskokwim River Knowledge . Delivery Assumptions. Adequate Tank Farm in Crooked Creek Pipeline Booster Pumps in Bethel and Crooked Cr , 800 000 Gallon - Capacity Per Set of Equipment Use of Bethel as Terminal # * + Round-trip Times of 51/2 days - Load Time of 10 Hours Discharge Time of 10 Hours Operations From June |Through September 30 Kuskokwim Advantages *Inland River Operating Conditions +Accessible by Ocean Tu ss and Barges >Existing Infrastructure in Bethel *Relatively Long Operating Season ¢Short Trips Times Between Load Point and Destination | Kuskokwim Disadvantages *Lower-River Gravel Bars ¢«Annual Variations in Length of Season Scenario 1 2 Tugs/4 Barges 8,000,000: Excess Capacity Deliveredto Other YFC Customers or Locations -Scenario 2 Shown in Scenario |s+Duplicates Effort Schedule _ *Tug #2 Operates One Day Belund Tug #1 +Assumes total of 3 Tugs and 8 Barges ¢Additional Linehaul Bar ge Required + ¢ ¢*Barge Specifications Leigth =175 feet Width 44 feet Depth 7 teet Loaded Draft 5 feet Working Capac ty 210000 ga ons 6 neh pip ng and pump systems L ghtly framed and skinned to maximize snallow dratt suitab lity ? ¢ ¢ Tug Specifications Length 385 feet Width 38 feet Operating Draft 4 feet Horsepower 1,800 Engines 4 | Crew | Fuel 4,000 gallons Delivered Pricing to Jet DiWfererdal "Crooked Cr. btn ob od Linehaul._.'Bethel Terminal'Lintderane toc:rocked. Delivered Piosfoal.';128){3 EsteeAlothercharges included, Yukon Fuel and its carrier,Yutana Barge Lines,both havesuccessfulhistoriesofworkingiinwestemAlaska.Servingalargeprojectsuchas.what NovaGoldis considering at Donlin Creek would fit well withour other operations.We just.completed our largest season ever,delivering over 49 million gallons to our customers along Alaska's coasts and river systems,and ave very confident that we can meetNovaGold's needs as well.Please consider this proposal as suitableforplanning and budgeting purposes only,andtrustthatwearereadytomoveforwardonconstructionof an-appropriatefleetwhen:and ifthis-projectis approved. Donlin Creek Mine Power Supply Feasibility Study Nuvista Light &Power,Co. 301 Calista Ct. Anchorage,AK 99518-2038 Volume 4 Appendix C-E |Public Draft March 20,2004 Bettine,LLC 1120 E.Huffman Rd.Pmb 343 Anchorage,AK 99501 907-336-2335 TABLE OF CONTENTS VOLUME I SECTION I -EXECUTIVE SUMMARY SECTION 1 -INTRODUCTION SECTION IH -POWER SUPPLY ALTERNATIVES SECTION IV -138-kV TRANSMISSION LINE &SUBSTATIONS SECTIONV -PRELIMINARY ENVIRONMENTAL PLANNING SECTION VI-PROJECT COST ESTIMATES SECTION VI-PROJECTMANAGMENT &SCHEDULING SECTION VII-PROJECT FINANCING SECTION IX -ECONOMIC ANALYSIS OF POWER SUPPLY ALTERNATIVES GLOSSARY OF TERMS VOLUME 2 Appendix A-Coal Plant Feasibility Design and Report Prepared by PES VOLUME 3 | Appendix B -Modular Plant Feasibility Design and Report Prepared by PES VOLUME 4 Appendix C-138kV Transmission Line Feasibility Design Information Appendix D -Electric System Studies Prepared by EPS Appendix E-Foundation and Fuel Storage Feasibility Design Reports Prepared by LCMF-.-, VOLUME 5 Appendix F -Preliminary Environmental Assessment Review Appendix G -Economic Analysis Appendix H -Miscellaneous Information Appendix I-Public Comments APPENDIX C-E Appendix C -Preliminary Transmission Line Design Documents 1.Sample Transmission Line Design Calculations - 2.EMF Calculations 3.Transmission Line Alternatives,Pre-Design Cost Estimates by Dryden &LaRue,Inc. Appendix D -Power System Studies by EPS,Inc. Appendix E -Site Development,Earth Works,Foundations, Bulk Fuel and Coal Storage 1.Coal-Fired Plant at Bethel 2.Combustion Turbine Plant at Bethel Appendix C -Preliminary Transmission Line Design Documents 1.Sample Transmission Line Design Calculations 2.EMF Calculations 3.Transmission Line Alternatives,Pre-Design Cost Estimates by Dryden &LaRue 1.Sample Transmission Line Design Calculations Summary of Maximum Horizontal Span for Specified Pole Class and LengthStructureTypeB Conductor:954 ACSR -Cardinal Pole Height AGL=Pole Height Above Ground Line Wood Pole NESC Heavy Loading Extreme Wind Loading (100 mph) Pole Height AGL |Pole Height AGL C2 C1 Hi H2 C2 C1 H1 H2 {173 207 247 301 1 | 30 45'Pole 129 157 189 234 45'Pole"167 208 248 297}50'Pole 123 156 186 229 50'Pole"464 203 247 287)"55'Pole!S=!145 149 185 217 |"55'Pole 60'Pole 60'Pole 162 199 241 289,114 143 177 216 Steel Pole NESC Heavy Loading Extreme Wind Loading (100 mph) Pole Height AGL Pole Height AGL C2 ¢1 H1 H2 C2 C1 Hi H2 401 488 . 3728233840148845'Pole 209 253 302 370 45'Pole 276 341 401 484,50'Pole 201 252 299 364 50'PoleHS=)572 334 405 469."ss'Pole"S=156 943 209 349|"_-*55'Pole 60'Pole 60'Pole 270 329 397 474 .191 237 290 349 Bethel to Donlin Mine 138 kV HSLIMITS54-3SP.mced Transmission Line MAXIMUM HORIZONTAL SPAN UNDER NESC HEAVY LOADING Steel Pole -Structure Type B No Conductor Dampenin Zero Degree Line AngieNoEmbedment-Pipe Piie Foundation ASSUMPTIONS: 1)Wind -4.096 psf (40 mph)2)ce -0.5 inch radial 3)OCF -2.5 for transverse wind loads 4)Pole Embedment -0 ft.; 5)Modulus of Rupture -8000 psi 6)Length Davit Arm -72”So :7)OPGW on Upper Davit Arm a:=O-deg Line angle 8)OCF1-1.65 for tension and vertical loads ti :=4300-lb tension in OPGW 27AY/59ACS t2 :=9724-Ib_tension in 954 ACSR i=1.4 k:=1.4 PoleLength;:=TopCirg,:= 45 -ft C2 i25.-in 50.ft ht 27 -in55-ft HO 9 in60-ft 31 -in PoleHeight :=PoleLength, Circumference 6'from pole butt c2 Ci Hi -H2 "40.5-in 43-in 45.5-in 48.5-in 45'Pole 42-in 45-in 47.5in_-50.5-in 50'Pole 43.5-in 46.5-in 49.5-in 52-in 55'Pole 60'Pole _45-in 48-in 51-in-54-in 'Circ6 = 1 PoleLength,-6-ftTapeni.x =(Circ6),x--TopCire,)- 0.033 0.034 0.035 0.037 0.032 0.034 0.035 0.037 0.031 0.033 0.035 0.038 0.031 0.032 0.034 0.035 Taper = 1 HSLIMITS54-3SP.med Bethel to Donlin Mine 138 kV HSLIMIT954-3SP.mced Transmission Line Circumference of Pole at Groudiine: GmdCirc;,:=Taper,,-PoleHeight,+TopCirc, c2 Ci Hi ==H2 "42.885 45.462 48.038 51.192 45°PolOle -->44.318 47.455 50.023 53.159 55'PoleGmaCrs=in ' 45.765 48.888 52.01 54.571 60'Pole 65'Pole 47.222 50.333 53.444 56.556 Diameter at top and groundline: .GmdCrrc,,Topc i.TC , TopDia,:=ahs GmdDia;4 =. t7958 13.651 14.471 15.291 16.295 +soa]Gmube 14.107 15.105 15.923 16.921TopDia=9231 |"14.568 15.561 16.555 17.371 9.868 15.031 16.022 17.012 18.002 Section Modulus at Groundline "249.721 297.497 351.008 424.78 .3 1 .Si x:=-(GmdDia,,)>_275.611 338.364 396.326 475.645 3 303.5 369.956 445.467 514.572 .333.418 403.754 483.346 572.765 IModulusofRupture:Fy :=8000-2in Ultimate Moment Capacity at Groundline:M,:=FS 1.665x 10°1.983x 10°234x 10°2832x 10°) 1.837x10°2256x 10°2.642x10°3.171x 10°Mg =; 5 5 Ib-ft2.023x 10°2.468x 10°297x10°3.43x 10°| 2223 x 10°2.692%10°3.222x 10°3.818x 10°) .IMomentduetoWindonPoie:Find =4.096.ft ....\2 1Mep,a Fwind-(2-TopDia,+GmdDia,,)-(PoleHeight)3 2 HSUMIT854-3SP.mcd Bethel to Donlin Mine 138 kV HSLIMIT9$-4-3SP.med Transmission Line "3406.014 3647.185 3888.356 4150.683 4269.854 4592.922 4890.269 5213.337 5245.793 5635.944 6026.094 e385.502 °°n 6337.904 6801476 7265.048 7728.621 300 Foot Span Load Points 1)OHGW-14.5ft from top 2)Cardinal (138kV)-5',2 x2'from top 3)Cardinal (12.47kv),3 x 8.5',from top Height of centroid of moments on OPGW and 138 kV conductor. Distance of Load Points from Top of Pole:l=1.4 Ipdist := 14.5 ft OPGW +Telephone -5-tt Conductor 2-ft Conductor x2 8.5-tt Conductor x3 Heightofload points from ground: Ipht,)=PoleHeight-Ipaist,-(30.5 50 43 36.5 35.5 55 48 41.5 40.5 60 53 46.5: 45.5 65 58 51.5) "Ipht= Load on conductor at each point Diameter of Conductor.Weight of conductor: m:1.2 dm =wicond,y := oPGW s0.472.in 0.314-1b-ft| Cardinal 1.196-in 1.229-Ib a Weight of Ice on Conductor: Radus of ice:ri:=.5-in Density of Ice:id :=75 a HSLIMIT9S54-3SP.mcd Bethel to Donilin Mine 138 kV os HSLIMITS54-3SP.med Transmission Line ©oe -0.604 }\ibwtice== 1.055 }ft Total Weight of Conductor:Wiots =wtice,+wtcond,, -_0.918 )Ib wet (2.284)ft Force of windon conductor:Pe =Fwina-(mn +2-ri) >0.502 )tbPe0.75 )ft Total Transverse Load on OPGW,138 kV conductor an Underbuild: Pu =(2-r),+6-Pe, Moment arm of total transverse load on OPGW and 138 kV conductor: . . 1hy,==[(2 bn,Pe,+TIPHY),Pe,+(2-1BH9,,5 Pe,+(3:1Dh),Pe,J 39.014 44.014 49.014 54.014 Overload Capacity Factor.ocf=2.5 ocfl:=1.65 Moment arm on davit arms:$:=72-in {a , roundline moment doMyo=aft -Ipht,4+2-(Ipht,2 +Ipht,_3 +or}se(&e line angle Maximum Horizontal Spans: Mg -oc Mwp on M;;-0cfiak OCF Py hy,+ocfi "Weotal,SHS)k= C2 Ci H1 H2 "282 338 401 488 45°Pole 276 341 401 484 50'PoleHS=f 55 Pol272334405469ole 60'Pole 270 329 397 474 '4 HSLIMITS54-3SP.med Bethel to Donlin Mine 138 kV HSLIMIT ew954-3SP.med Transmission Line 7 MAXIMUM HORIZONTAL SPAN UNDER Extreme Wind LOADING Steel Pote -Structure Type B N n r Dampenin Zero Degree Line Angie No Embedment -Pipe Pile Foundation - ASSUMPTIONS: 1)Wind -25.6 psf (100 mph) 2)Ice -0.0 inch radial 3)OCF -1.0 for transverse wind loads4)Pole Embedment -0 ft. 5)Modulus of Rupture -8000 psi 6)Length Davit Arm -72" 7)OPGW on Upper Davit Arm ; 8)OCF1-1.0 for tension and vertical loads a:=O-deg Line angle tl :=4300-Ib tension in OPGW 27AY/59ACS Q :=9724-Ib tension in 954 ACSR min4@ ki=1.4 PoleLength,:=TopCirc,:= 45 -ft C2 5-in 50-ft Mt 27 -in55-ft H2 eg in60-ft 31 «in PoleHeight,:=PoleLength; Circumference 6&'from pole butt c2 C1 H1 H2 40.5-in 43-m 45.5-in 48.5-in 45'Pole 42-in 45-in.47.5in.50.5-in 50'Pole 43.5-in 46.5-in 495-in 52-in 55'Pole 60°Pole _45-in 48-in Stn 54-in Circ$:= Taper.°=(Circ;_TopCircy)-PoleLength,-6-t-6 '0.033 0.034 0.035 0.037 0.032 0.034 0.035 0.037 0.031 0.033 0.035 0.036: 0.031 0.032 0.034 0.035 Taper = 1 HSLIMITew954-3SP.med Bethel to Donlin Mine 138 kV HSLIMITew954-3SP.mced Transmission Line Circumference of Pole at Groudiine: GrndCirc,,=Taper;,-PoleHeight +TopCirc, 62 Ct Oso "42.885 45.462 48.038 51.192 44.318 47.455 23 53.159 a ole-->.;50.023 53.,GmdCirs =in re45.765 48.888 52.01 54.5741 OV FOS 65'Pole 47.222 50.333 53.444 56.556 Diameter at top and groundline: .GmdCirc,kTopCirc,iq.=e eeeTopDia,:-=--_-GmdDia;,:7 7958 13.651 14.471 15.291 16.295 --14.107 15.105 15.923 16.921-> -*8.594 |GmdDia =inTopDia=9.231 |"14.568 15.561 16.555 17.371} 9.868 15.031 16.022 17.012 18.002} Section ModulusatGroundline:249.721 297.497 351.008 424,78 Si,=m-(GmdDia,)-_275.611 338.364 396.326 475.645 | 303.5 369.956 445.467 514.572 333.418 403.754 483.346 572.765 Modulus of Rupture:Fy :=8000.in Ultimate Moment Capacity at Groundline:Mg :=Fy:S 1.665 x 10°1.983x 10°234 10°2.832 10°) 1.837 x 10°2.256x 10°2.42 10°3.171x 10° Ib-ft 2.023 x 10°2.466x 10°297x 10°3.43x 10° 2.223 x 10°2.692x 10°3.222x 10°3.818x 10°, IbMomentduetoWindonPole:Fung =25.6 <>ft Myp,-°=Fwind-(2-TopDiag +GmdDiay,.)(PoleHeignt)*.- 2 a HSLIMITew954-3SP.med Bethel to Donlin Mine 138 kV HSLIMITew954-3SP.medTransmissionLine 21287.586 22794.906 24302.225 25941.766 26686.586 28705.764 30564.18 32583.357 32788.207 35224.648 37663.09 39909.39 39611.897 42509.224 45406.552 48303.879 300 Foot Span lwp= Load Points1)OHGW-14.5ft from top 2)Cardinal (138kV)-5',2',8.5',from top Height of centroid of moments on OPGW and 138 kV conductor. Distance of Load Points from Top of Pole:=1.4 ipdist,:= 14.5 -ft oPGW 5 .ft Conductor 2.-ft Conductor 8.5 -ft Conductor Height of load points from ground: Ipht,,;:=PoleHeight-Ipdisy =30.5 50 43 36.5} 35.5 55 48 41.5: Ipht =ft 40.5 60 53 46.5 455 65 58 515) Load on conductor at each point . Weight of conductor:Diameter of Conductor. m=1.2 dn =wicondm := =4 OPGW 0.472 -in 10.314 -Ib-ft Cardinal |1-796-in 1.229-Ib-t| ”Weight of ce on Conductor: Radius of ice:ri =.0-in Density of Ice:id =67--ft HSLIMITew954-3SP.mcd Bethel to Donlin Mine 138 kV HSLIMITew954-3SP.mcd Transmission Line Total Weight of Conductor:io i=wtice,,+wicond, -_0.314 )\Ib wt”(4.229 |ft Force of wind on conductor.Po c=F wina-(Gm +2.-i) +(1.007)tp Pem\o ssi)ft Total Transverse Load on OPGW,138 kV conductor an Underbuid: Put =(2-p,),+8-Pe, IbPu=17.3234 Moment arm of total transverse load on OPGW and 138 kV conductor. 1by,=[(2-1phO,Pe,+(TAD,»-Pe,+(2:IPHD,5c,+(3p,4s} "39.706 } 44.706 . 49.706 3 54.706 J hy= Overload Capacity Factor.ocf=1.0 ocf1:=1.0 Moment arm on davit arms:8>=72.-in -fa roundline momentdoMjp=2ft1 dpht 4+12-(Ipht:9 +Ipht,3+inh)sn};vo to line angle.- Maximum Horizontal Spans: Mg -oct Mp |-Mj,oct#& oct-pyy-hy +ocfi "Wrotal,SHSx= 4 HSLIMITew954-3SP.med Bethel to Donlin Mine 138 kV HSLIMITew954-3SP.med Transmission Line C2 Ci Hi H2 209 253 302 370 45'Pole 201 252 299 364 50'PoleHS=f 55°Pol195243299349ole 60'Pole 184 237 290 349 5 , HSLIMITew954-3SP.mcd Bethel to Donlin Creek Mine 138 kV Transmission Line H-Frame StructureSummaryofMaximum Horizontal Span for Specified Pole Class and Length Conductor:954 ACSR-Cardinal Pole Height AGL=Pole Height Above Ground Line Wood Pole NESC Heavy Loading Extreme Wind Loading (100 mph) Pole Height AGL Pole Height AGL c2 ci Hi one C2 Ci Hi H2 (609 753 917 1067 ;"439 556 689 81255'Pole 55'Pol6057408921063]65'Pole 418 525 648 787 roeHS=ft 75'Pole HS =ft 65'Pole 589 740 857 1077 B5'Pole 386 505 598 776 75'Pole .582 725 888 1043 361 473 602 725 85'Pole Steel Pole NESC Heavy Loading Extreme Wind Loading (100 mph) Pole Height AGL Pole Height AGL C2 C1 Ht H2 |C2 C1 Hi H2 151101712501515 1758)729 909 1115 1304 55'Pole 1020 1238 1486 1764 65'Pole 712 879 1070 1284]65'PoleHS=75'Pole HS=ft 75'Pole100312481440179768086710121287 .85'Pole 85'Pole 1001 1235 1501 1755 659 835 1037 1230 10/3/2003 Summaryhframehor.span 1 Bethel to Donlin Creek Mine 138 kV Transmission Line H-Frame Structure -Maximum Horizontal Span Extreme Wind Loading © Steel Poles ASSUMPTIONS:Zero Degree Line Angie 1)Wind -25.6 psf (100 mph)Load Points 2)NESC Heavy Ice -0.inch radial 1)OHGW-1ft from top3)OCF -1.0 for transverse wind loads 2)Cardinal (138kV)-6',6',6',from top4)Pole Embedment -0 ft. 5)Modulus of Rupture -8000 psi 6)Length Unsupported CrossAmm -6°6"tt :=4300-Ib 7)OCF1-1.0 for tension loads a:=0-deg Line angle i=1.4 k=1.4 PoleLength,:=TopCirc,:= 70 -ft C1 «-27-in 75-ft Hi B9.in B0-ft yi Btin90-ft 35-in PoleHeight,:=PoleLength, Circumference 6'from pole butt C1 Hi H2 H4 51-in 54-in 57-in 63.5-in 52.5-in 55.5-in 59-in 65-in 54.in 57-in 60-in 66.5-in Circ := _55-in 58.5-in 61.5-in 68-in| 1 70'Pole 75'Pole 80°Pole 90'Pole Taper =(Circé;an TopCire,)- '0.031 0.033 0.034 0.037 0.031 0.032 0.034 0.036 0.03 0.032 0.033 0.035 0.028 0.029 0.03 0.033. Taper = 3/8/2003 PoleLength,-6-ft tension in OPGW 27AY/S9ACS 2 :=9724-ib tension in 795 ACSR HframeHSLIMITewSP.med Bethet to Donlin Creek Mine 138 kV Transmission Line Circumference of Pole at Groundline: GmdCirc,,:=Taper,,-PoleHeight,+TopCirc, C1 #1 H2 H4 "53.25 56.344 59.438 66.172 ---> $4.717 57.804 61.435 67.609 |GmdCirc= 57 60.607 63.679 70.357 Diameter at top and groundline: Ut) 56.189 59.27 62.351 69.054 TopCire,ia, i=TopDia,:=------Grd Dia,x:x zx 8.594 >9.231 GnniDn -17.417TopDia=in 9.868 11.141 Section Modulus at Groundline: 1Siacx-(GmdDia,,.)”-<5 Modulus of Rupture:F,:=8000.--in 18.4 70'Pole 75'Pole £0'Pole 90°Pole GrndCirc;, Ultimate Moment Capacity at Groundline:M,:=F,-S 3.187x10°3.776 10°4.432x 3.458x 10°4.077 10°4.894 x 3.745x 10°4.395 10°5.117% 3.909x 10°4.699 10°5.451x 10° 10° 10° 10° |,Ib 6.118x 10°} 6.523x 10°} 6.951 10° 7.352x 10°) Moment due fo Wind on Pole:Fwing =25.6--ft 1Mvp,=Fwina-(2-TopDia,+GrndDia;,)-(PoleHeight)"-< 16.95 17.935 18.92 21.063 19.555 21.521].17.886 18.866 19.847 21.981 ” 18.144 19.262 20.27 22.395 Ib-ft 478.089 566.353 664.863 917.425 518.712 611.55 734.164 978.494 |, 561.705 659.268 767.517 586.374 704.891 1042.6 817.58 1102.744 HframeHSLIMiTewSP.med Bethel to Donlin Creek Mine 138 kV Transmission Line 59477.263 6341122 67345.176 75516.388 69211.641 73723.338 78581.023 87604.417 Mvp =s |Ib-ft79813.537 84942589 90071642 1.007x 10 1.018x10°1.087x 10°1.152x 10°1.287x 10° Height of centroid of moments on OPGW and 138 kV conductor: Distance of Load Points from Top of Pole:f=1.4 Ipdist,:= at OPGW 2.7 |Conductor 2-ft Conductor 2m Conductor Height of load points from ground: Ipht,):=PoleHeight,-Ipdist,74 68 68 68 tpht 79 73 73 7384787878 94 88 88 88 Load on conductor at each point: Oiameter of Conductor:Weight of conductor. m:=1.2 dn i=Wicondy *= -4OPGW0.472-in 0.314-Ib-ft Cardinal 1.196-in 1.229.Ib-t Weight of Ice on Conductor: Radius ofice:ri:=0.0-in Density of Ice:id:=s7-ft 3/6/2003 3 HframeHSLIMiTewSP.med Bethel to Donlin Creek Mine 138 kV Transmission Line Total WeightofConductor:Wo!=wice,,+wicond,,m ->(0.314) wet”4229)ft Force of wind on conductor:Pe_?=Feind:(dm+2-11) +(1.007)1p Pe loss)Rt '74 68 68 68 loht 79 73 73 73 :84 78 78 78 94 88 88 88 Total Transverse Load on OPGW and 138 KV conductor: Py =Pe,+3-Pe, IbPa=8.661 rs Moment arm of total transverse load on OPGW and 138 kV conductor: '4ny=(!Pht,+Pe,+Iphtt,2-Pe,+Iphh Pe,+Ipht,4-Pe ve '68.698 73.698 78.698 88.698 Overload Capacity Factor:ocf:=1.0 ocfl :=1.0 {a roundiine moment doM)1:=2-[t1-Ipht,+#2-(Ipht +Ipht,5 +int,)}sin(2)to line angle 3/6/2003 4 HframeHSLIMiTewSP.med Bethel to Donlin Creek Mine 138 kV Transmission Line Maximum Horizontal Spans: Mg OCF Map,Mroctt (oot)HS,«= Ci H1 H2 H4 '871 1056 1263 1802 867 1046 1287 1769 865 1040 1237 1744 753 940 1119 1579 HS 3/8/2003 :5 70'Pole 75'Pole 80°Pole 90°Pole Maximum Horizontal Span HframeHSLiMiTewSP.med Bethel to Donlin Creek Mine 138 kV Transmission Line H-Frame Structure -Maximum Horizontal Span NESC Heavy Loading Steel Poles ASSUMPTIONS:Zero Degree Line Angie 1)Wind -4.096 psf (40 mph)Load Points 2)NESC Heavy Ice -0.5 inch radial 1)OHGW--4ft from top3)OCF -2.5 for transverse wind loads 2)Cardinal (138kV)-2',2',2',from top4)Pole Embedment -0 ft. 5)Modulus of Rupture -8000 psi 6)Length Unsupported CrossArm -6'6"tt :-=4300-Ib 7)OCF1-1.85 for tension load tension in OPGW 27AYS9ACS 2 :=9724-Ib tension in 795 ACSR a:=0.deg Line angle i=1.4 k=1.4 PoleLength,:=TopCirc,:= 70-ft Ci (27-in 75 -ft H1 229.in80-ft i Bin90-ft 35-in PoleHeight,:=PoleLength, Circumference 6 from pole butt C1 #H1 H2 Hé4 51-in 54-in 57-in 63.5-in 70'Pole 52.5-in 55.5-in 59-in 65.-in 75'Pole 54.in 57-in 60-in 66.5-in 80"Pole90'Pole 55-in 585-in 61.5-in 68-in Taper «c=(Circs,,-.TopCirc,)-PoleLength,66 '0.031 0.033 0.034 0.037 0.031 0.032 0.034 0.036 0.03 0.032 0.033 0.035 0.028 0.028 0.03 0.033. 3/6/2003 7 4 HframeHSLiMiTSP.med Bethel to Donlin Creek Mine 138 kV Transmission Line Circumference of Pole at Groundline: GmdCirc,,:=Taper,,-PoleHeight,+TopCirc, C1 Hi H2 H4 "53.25 56.344 59.438 66.172 70°Pole _---_S 54.717 57.804 61.435 67.609 75'PoleGmdCire=__ in 20 Pole56.189 5927 62.351 69.054 bedeliedied 90'Pole 57 60.607 63.679 70.357 Diameter at top and groundiine: :GmdCirc,,TopCirc,;-, TopDia,:=GmdDia,_==. x 16.95 17.935 1892 21.0638.594 ->17417 184 19.555 21.521:--_-9.231 |._GmdDia=inTopDia=9.868 in 17.888 18.866 19.847 21.981 14.441 18.144 19292 20.27 22.395 Section ModulusatGroundline:'478.089 566.353 664.863 917.425 |'S142 #-(GmdDia,)°-_518.712 611.55 734.164 978.494 3 561.705 659.266 767517 10426 586.374 704.891 817.58 1102.744 Modulus of Rupture:F,:=8000in Ultimate Moment Capacity at Groundline:Mg :=FyS 3.187x 10°3.776x 10°4.432x 10°6.116 10° a 3.458x 10°4.077x 10°4.894x 10°6.523x10°behog. 3.745x 10°4.395x 10°5.117x 10°6.951x10° 3.909x 10°4699x 10°5.451x 10°7.352x 10° Moment due to Wind on Pole:Find =4.098. . 7 ft 1Myp,=Fwine'(2-TopDia,+GmdDia,,,)-(PoleHeight)”.- 36/2003 ) 2 HframeHSLIMITSP.med Bethel to Donlin Creek Mine 138 kV Transmission Line -9516.362 10145.785 10775.228 12082.619 11073.863 11795.734 12572.964 14016.707 12770.166 13590.814 14411.463 16115.404 16281.169 17396.963 18434.18 20587.192 Height of centroid of moments on OPGW and 138 kV conductor: Distance of Load Points from Top of Pole:=1.4 Apdist,:= Cah OPGW 2-ft |Conductor 2-ft Conductor 2-ft Conductor Height of load points from ground: Ipht,;:=PoleHeight;-Ipdist 74 68 68 68 79.73 73 73 84 78 78 78 94 88 88 88 Load on conductor at each point: Diameter of Conductor:Weight of conductor: m:=1.2 dey :=wicondm = :.a -4OPGW0.472 .in 0.314-1b-ff." Cardinal -_(1-796-in 1.229-4b-#" Weight of Ice on Conductor: Radius of Ice:ri:=0.5-in Density of Ice:id =57-- 3/8/2003 .3 :HframeHSLIMITSP.med Bethel to Donlin Creek Mine 138 kV Transmission Line Total Weight of Conductor:Wioty >=Wiice,,+wtcond,, ->(0.918 \Ib net (2.284)ft Force of wind on conductor.Pe c=Fwind:(m +2-ti) >(0.502)b Pe lors Jt 74 68 68 68 Ipht 79 73 73 7384787878 94 88 88 88 Total Transverse Load on OPGW and 138 kV conductor. Pri =Pe,+3Pe, IbPa=2.751 - Moment arm of total transverse load on OPGW and 138 kV conductor: 1hy,==(IPH1 Pe,+IDhk 2:Pe,+Iphk,s-Pe,+IPH «Pe rv '69.096 74.096 79.096 89.096 1 Overload Capacity Factor:=ocf:=2.5 ocfi:=1.65 _{&roundline moment doM,=2[tt-Ipht_,+t2-(Ipht2 +Ipht,s+ott J}sin(line angle 3/8/2003 4 _HframeHSUMITSP.med Bethel to Donlin Creek Mine 138 kV Transmission Line 38/2003 Maximum Horizontal Spans: HS 1241 1482.1752 2447 1248 1484 1797 2423 1259 1491 1749 2407 1143 1392 1629 2231 70'Pole 75'Pole 80°Pole 90'Pole Maximum Horizontal Span HframeHSLIMITSP.med Bethel to Donlin Creek 138 kV Transmission Line SUMMARY -POLE EMBEDMENT DEPTH NESC LOADING H-FRAME STRUCTURE Soil Classification -Very Poor,Assumes Lateral Soil Bearing Pressure of 50 psf 13.138 12.711 12.322 11.965 12.779 12.322 11.965 11.637 d= 12.447 12.081 11.69 11.334 12.199 11.798 11.432 11.098 c2 C1 H1 H2 14.722 14239 138 13.397 d 14.316 13.8 13.397 13.027 13.942 13.528 13.087 12.685 13.662 13.209 12.796 1242. c1 H1 H2 14.977 14538 14.134 1468 14199 13.761 15.457 14977 14538 14.332 13.882 13.471. 600 Ft Span 70°(55)Pole 80°(65)Pole embedment depth in fee 90'(75)Pole 100'(85)Pole 800 Ft Span 70'(55)Pole 80'(65)Pole 90'(75)Pole 100°(85)Pole embedment depth in fee 1000 Ft Span 70'(55)Pole 80'(65)Pole 90'(75)Pole 100°(85)Pole embedment depth in fee Soil Classification -Poor,Assumes Lateral Soil Bearing Pressure of 100 psf C2 Ci H1 H2 10.546 10.208 99 9.617 10.262 9.9 9617 9.357 9.999 9.709 9.399 9.116 9.803 9.484 9.194 8.929 3/6/2003 hframe embedment 600 Ft Span 70 (55)Pole . 80'(65)Pole embedment depth in fee 90°(75)Pole 100°(85)Pole Bethel to Donlin Creek 138 kV Transmission Line C2 C1 H1 H2 11.637 11.262 10.919 10.606 11.322 10.919 10.606 10.317 d= 11.03 10.707 10.364 10.05 10.812 10.459 10.137 9.843| C2 C1 H1 H2 12.473 12.069 11.701 11.363 d 12.134 11.701 11.363 11.05311.82 11.472 11.103 10.766- 11.585 11.205 10.859 10.542© 800 Ft Span 70'(55)Pole 80"(65)Pole 90'(75)Pole 100'(85)Pole embedment depth in fee 1000 Ft Span 70°(55)Pole 80°(65)Pole 90°(75)Pole 100'(85)Pole embedment depth in f Soil Classification -Average,Assumes Lateral Soil Bearing Pressure of 200 psf C2 Ci H1 8.328 8.064 7.824 8.107 7.824 7.603 7.902 7.675 7.433 7.748 75 7.273 C2 C1 H1 9.04 8.753 8.49 8.799 8.49 825 8.575 8.328 8.064 8.408 8.137 7.89 C2 c1 H1 '9.563 9.258 8.98 | 9.307 8.98 8.725 9.07 8.808 8.528 8.893 8.606 8.344 3/6/2003 hframe embedment H2 7.603 7.4 7.212 7.065 H2 8.25 8.029 7.824 7.664 600Ft Span 70 (55)Pole 80"(65)Pole 90°(75)Pole 100'(85)Pole embedment depth in fee 800 Ft Span 70°(55)Pole 80'(65)Pole 90'(75)Pole embedment depth in fee 100°(85)Pole 1000 Ft Span 70'(55)Pole 80'(65)Pole 90'(75)Pole 100'(85)Pole embedment depth in fee Bethel to Donlin Creek 138 kV Transmission Line EXTREMEWINDLOADING Soil Classification -Very Poor,Assumes Soil Bearing Pressure of 50 psf C2 C1 H1 H2 {19.755 19.091 18.488 17.937 119.197 18.488 17.937 17.43 418.683 18.115 17.511 16.962 18.299 17.678 17.114 16.599: C2 cit Hi #2 21.905 21.163 20.488 19.872 21.282 20.488 19.872 19.305 d= 20.706 20.071 19.396 18.783 20.277 19.583 18.952 18.377. C2 C1 Hi H2 "23.565 22.761 22.031 21.363 g_22889 22.031 21.363 20.751 22.267 21.579 20.849 20.186 21.802 21.051 20.369 19.747. 600 Ft Span T7fY (EEX DalaCeeked 80°(65)Pole +embedment depth in fee 90°(75)Pole 100°(85)Pole 800 Ft Span 70°(55)Pole 80°(65)Pole 90°(75)Pole 100°(85)Pole embedment depth in fee 1000 Ft Span 70°(55)Pole 80°(65)Pole 90°(75)Pole 100°(85)Pole embedment depth in fee Soil Classification -Poor,Assumes Soil Bearing Pressure of 100 psf C2 C1 H1 H2 15.436 14.928 14.466 14.042 15.009 14.466 14.042 13.653 14.615 14.179 13.716 13.293 14.32 13.844 13.41 13.014 3/6/2003 hframe embedment 600 Ft Span 70°(55)Pole 80°(65)Pole embedment depth in fee 90°(75)Pole 7 ; 100°(85)Pole Bethel to Donlin Creek 138 kV Transmission Line 800 Ft Span C2 C1 Ht 'H2 £16814 16.257 15.75 15.286 70'(55)Pole 16.346 15.5 4.859 ft 80°(65)Pole embedment depth in feed= 7S 15.286 1 90'(75)Pole 15.914 15.436 14.928 14.466 100'(85)Pole 415.591 15.068 14.594 14.159 1000 Ft Span C2 C1 H1 H2 4 JT 6.18.412 17.797 17238 16.727 70'(55)Pole8961723816.727 16.25 ,d=7 Te te 7 ft 90"(75)Pole embedment depth in f17.419 16.892 16.15.8293333 100°(85)Pole17.063 16.487 15.964 15.486 Soil Classification -Average,Assumes Soil Bearing Pressure of 200 psf 600 Ft Span C2.sCt Hi H2 12.051 11.661 11.306 10.98 70'(55)Poleg_11724 11.306 10.98 10681 ff -80°(65)Pole embedment depth in fee49.421 11.086 10.729 10.404 90'(75)Pole400'(85)Pole 11.194 10.828 10494 10.189. 800 Ft Span C2 C1 H1 H2 - 13.444 13.006 12607 12241 .ro ce Pole embedrnent depth in fee ..1.905de13.076 12.607 12241 1 90'(75)Pole12.736 1236 11.959 11.594 100°(85)Pole 12.481 12.07 11695 11.353. 1000 Ft Span C2 C1 H1 H2 14.542 14.065 13.631 13.234 70'(55)Pole ga 14142 13.631 13234 12869 -80'(65)Pole ©embedment depth in fee_13.772 13.363 12.928 12531 _90°(75)Pole100°(85)Pole13.495 13.048 12.641 12269 - 3/6/2003 4 hframe embedment Bethel to Donlin Creek Mine 138 kV Transmission Line MAXIMUM HORIZONTAL SPAN LIMITED BY FOUNDATION STRENGTH H-Frame UNDER Extreme Wind LOADING Zero Degree Line Angle .Load PointsASSUMPTIONS:1)CHGW --4%from top 2)Ice-0.0 inch radial -44004bt OrG3)OCF-1.5 for transverse wind loads 11 =4400:Ib tension on OPGW 4)Pole Embedment :=10397-Ib tension in 8954 ACSR 5)Modulus of Rupture -8000 psi . ;6)Length Davit Arm -72"Line Angle a:=0 7)OPGW on lower Davit Arm 8)OCF 1-1.5 for tension and vertical loads PoleLength;:=TopCirc,:= 70-ft C2.25-in 80-ft nA 27 -in90-ft}Ho om 100-ft 1-in PoleHeight,:=PoleLength,-15ft Circumference 6'from pole butt c2 C1 Hi H2 48-in 51-in 54-in 57-in ©70°(55)Pole50.5-in'54-in 57m 60-in 80'(65)Pole 53in 56-in 595-in 63-in 90°(75)Pole 100°(85)Pole55.in 58.5-in 62-in 65.5-in, i.H 1Taperi,n >=(Ciro6),,-TopCirc,)-PoleLength,-6-ft Circ6 := 3/6/2003 .1 HSfondew/hframe.mcd Bethel to Donlin Creek Mine 138 kV Transmission Line 0.03 0.031 0.033 0.034 0.029 0.03 0.032 0.033 0.028 0.029 0.03 0.032 0.027 0.028 0.029 0.031. Taper = Circumference of Pole at Groudline: GmdCirc,,:=Taper,,-PoleHeight,+TopCirc, ci C2 Hi H2 44766 47.625 50.484 53.344 70°(55)PoleGmdCire4739950.716 53.595 56.473 |_80'(65)Polero=in .. "]§0 52893 56.232 59.571 90°(75)Pole 100°(85)Pole5212855.484 58.84 62.197 ; Diameter at top and groundline: .GmdCire,,TopCi ia.=---_--_--_TopDia c=ee GmdDia,aaax 7.958 14249 15.16 16.07 16.98 4 8.594 |GmndDia =15.087 16.143 17.06 17.976TopDia=9231 in 15.915 16.836 17.899 18.962 9.868 16.593 17.661 18.729 19.798. Section Modulus at Groundline:'284.043 342.023 407.4 480.619 _\3 1S)4 :=x-(GmdDia;,)3 _337.169 413.039 487.431 570.259 a '395.786 468.534 562.995 669.367 448.492 540.822 645.027 761.824 ModulusofRupture:F,:=8000.-in Ultimate Moment Capacity at Groundline:M,=F,-S 1,894 10°228%10°2.716x10°3:204x 10°) 2.248x10°2.754x 10°325x 10°3.802x 10°:M,=Ib-ft2.639x 10°3.124%10°3.753 10°4.462x 10° 2.99x 10°3.605x10°43x 10°5.078x 10°) 38/2003 2 HSfondewthframe.med Bethel to Donlin Creek Mine 138 kV Transmission Line Moment due to Wind on Pole:Find (=25.6--ft 1Muwp,.=Fwina-(2-TopDia,+GmdDia;,)(PoteHeight)”-i,k "32443.956 34792.332 37140.707 39489.082 } 46573.325 50072.382 53361.431 56650.48 {Mop =.63661.977 68050.106 72722.441 77394.775 on 83510.066 89525.4 95540.735 1.016x 10°} Height of centroid of moments on OPGW and 138 kV conductor: Distance of Load Points from Top of Pole:=1.4 Ipdist = aA OPGW 2-ft Conductor 2-f Conductor af Conductor Height of load points from ground: Ipht,,=PoleHeight;-Ipdist,'59 53 53 53 ipht =ft 79 73 73 73 89 83 83 8&3 Load on conductor at each point: Diameter of Conductor:Weight of conductor: m:=1.2 dm :=wtcond,,:= opcw_(0.472.in 0.314-Ib-ft Cardinat |1-796-in 1.229.Ib-f | Weight of Ice on Conductor: rauius orice:=o n:=U.U-in Density of Ice:id -=s7.-- ones (Go (5) 3/8/2003 . 3 )HSfondew1hframe.med Bethel to Donlin Creek Mine 138 kV Transmission Line -_-_0wice=||22a)ft Total WeightofConductor:Wiotes '=whice,,+wtcond,, -_0.314 )ib ae (4220)ft Force of wind on conductor:Pe =Fwina:(dm+2-13)m >1.007 )IbPe\oss1) $9 53 53 53 70'(55)PoleIpht=69 63 63 63 ht 80°(65)Pole -79 73 73 73 90°(75)Pole100°(85)Pole89838383 Total Transverse Load on OPGW and 138 kV conductor. Pu >=Pe +3-P., ibPr=8.664 R Moment arm of total transverse load on OPGW and 138 kV conductor: .1hy,==(lphb1 Pe,+IPht,2Pe,+IPht=Pe,+IPAE «Pe,z= '53.698 70°(55)Pole_53.698 p 80"(65)Pole 1”73.698 }90'(75)Pole 100°(85)Pole83.698}_-- 3/8/2003 4 HSfondew1hframe.med Bethel to Donlin Creek Mine 138 kV Transmission Line c2 Ci Hi =H2 4 425 45 475 4208 45 475 5 4.417 4667 4958 525 4.583 4.875 5.167 5.458 70°(55)Pole 80'(65)Pole 90'(75)Pole 100°(85)Pole Soil Classification -Very Poor,Assumes Soil Bearing Pressure of 50 psf 600 Foot Span d:=18ft estmated embedment depth pix 5p >soil bearing pressure2ft dSt=po S1 =300IbR" -600ft=(Px-6008)F =2598.4 1b 2 '5.067 4.769 4.504 4267 F 4.816 4504 4267 4.054A=2.34 A=$1-B,x 4589 4343 4.088 3.86 4422 4157 3.923 3.713 A.hydpe14+[4.36---2 Avett C2 C1 H1 H2 '19.755 19.091 18.488 17.937) 70°(55)Poled=19.197 18.488 17.937 17.43 ft 80'(65)Pole embedment depth in feet 18.683 18.115 17.511 16.962 90°(75)Pole 100°(85)Pole1829917.678 17.114 16.599. 800 Foot Span -B0O0ftF:s (rs >F =3464.5331b d:=20ft estimated embedment depth p:=592 soil bearing pressurefC 3/6/2003 §HSfondewhframe.med Bethel to Donlin Creek Mine 138 kV Transmission Line st:=ps=PS $1 =333.333 Ibft" | 6.08 5.723 5.405 5.12 2 5.779 5.405 5.12 4.864Ak=2.34 re = -(5507 5.212 4.905 4.633 5306 4.989 4.707 4.456 hy dha tas [436- 2 1 Arctft C2 ci H1 H2 21.905 21.163 20.488 19.872 70°(55)Pole 21.282 20.488 19.872 19.305]ft 80°(65)Pole embedment depth in feet d=90°(75)Pole20.706 20.071 19.396 18.783 100°(85)Pole 20.277 19.583 18.952 18.377 1000 Foot Span -1000ftF:=be F =4330.667 Ib d:=22ft estimated embedment depth p:=50-2 soil bearing pressure a a $1:d=P2 $1 =368.667 lb ft' 6.909 6.503 6.142 5.818 F 6.567 6.142 5.818 5.528At=2.34---A= 'oe 6.258 5.922 5.574 5.264 6.03 5.669 5.349 5.063 Ay,hydam1+|4 : 2 Ayft c2 ci Hf1 H2 '23.565 22.761 22.031 21.363 70°(55)Pole --embedment depth in feet22.889 22.031 21.363 20.751|80°(65)Poled=90°(75)Pol992672157920.849 20.186 ole 100'(85)Pole21.802 21.051 20.369 19.747 3/6/2003 6 HSfondewthframe.mcd Bethe!to Donlin Creek Mine 138 kV Transmission Line Soil Classification -Poor,Assumes Soil Bearing Pressure of 100 psf 600 Foot Span d:=14ft |estimated enbedment depth 09%soil bearing pressurep:=1 >nia st=pd=PS S1 =466.667 Ibft" -600ftFx{pS F =2598.4 1b "3.257 3.066 2.895 2.743 F 3.096 2.895 2743 2606 Ay i=2.34.A=$1.B,,2.95 2.792 2628 2.482 2.843 2.673 2522 2.387 . .de 1+/4.36.-ED A,itt C2 c1 H1 H2 15.436 14.928 14.466 14.042 70'(55)Pole15.009 14.466 14.042 13.653 80'(65)Pole |embedment depth in feet 14.615 14.179 13.716 13.293 90'(75)Pole100°(85)Pole14.32 13.844 13.41 13.014. 800 Foot Span -800ftF:s ine )F =3464.533Ib d:=16ft estimated embedment depth tb soi beerp:=100-soil bearing pressurefr Si:=p+=PZ $1 =533.333 Ibft' 38 3.577 3378 32 Aye?F 3.612 3.378 3.2 3.04 "S1-B,|3.442 3.257 3.066 2.895 | 3.317 3.118 2.942 2.785. 3/8/2003 7 HSfondew1hframe.med Bethel to Donlin Creek Mine 138 kV Transmission Line C2 C1 H1 H2 16.814 16.257 15.75 15.286 70'(55)Pole 16.348 15.75 15.286 14.859 ft 80'(65)Pole embedment depth in feet d=90'(75)Pola15.914 15.436 14.928 14.466 100'(85)Pole 15.591 15.068 14.594 14.159. 1000 Foot Span -4000ftFx{pete F =4330.667Ib d:=17%estimated embedment depth |b soil bearing pressurep:=100 vr si:=p=PS S1 =566.687 Ib ft' 4471 4208 3.974 3.765 F 4.249 3.974 3.765 3.577Ayy=2.34-A= ,S1-B,,4.049 3.832 3.607 3.406 3.902 3668 3.461 3.276 hyy=1+/4.36.- C2 Ci H1 H2 18.412 17.797 17.238 16.727 17.896 17.238 16.727 16.257 70'(S5)Pole,.ft 80°(65)Pole ;d=.embedment depth in ft17.419 16.892 16.333 15.823 90°(75)Pole 100°(85)Pole17.063 16.487 15.964 15.486 Soil Classification -Average,Assumes Soil Bearing Pressure of 200 psf 600 Foot Span d:=11ft estimated embedment depth p=2092.soil bearing pressurev 3/6/2003 8 HSfondewthframe.med Bethel to Donlin Creek Mine 138 kV Transmission Line St:=p S1 =733.333 Ib ft" r.-(Pr6008)F =2598.4Ib 2 2073 1.951 1843 1.746 F 197 1.843 1.748 1.658 Nn 24 SB A=\e77 1.777 1672 15791.809 1.701 1.605 tee) C2 C1 H1 H2 12.051 11.661 11.306 10.98 :70°(55)Pole_|11.724 11.306 10.98 10.681 80'(65)Pole |embedmentdepthinfeet 11.421 11.086 10.729 10.404 90°(75)Pole100°(85)Pole11.194 10.828 10.494 10.189, 800 Foot Span -BO00fF:=(Ps 5 F =3464.533\b d:=12f estimated embedment depth ib soil bearing pressurep:=200-ft dSI=pz $1 =800Ib ft' 2.533 2.384 2252 2.133 F 2.408 2252 2.133 2.027 A y=234----= -2.204 2.172 2.044 1.93 2211 2.079 1.961 1.857. A,hyd=14 [436--2 Aye itt "3/8/2003 , 9 HSfondewthframe.med Bethel to Donlin Creek Mine 138 kV Transmission Line C2 C1 H1 H2 '13.444 13.008 12.607 12.241 ,ih Ce)roe embedment depth in feet13.076 12607 12241 11905 ft (65)Pole d=90'(75)Pole12.736 1236 11959 11.594 100'(85)Pole 12.481 12.07 11.695 11.353. 1000 Foot Span (p1-10008)F:==F =4330.667 Ib d:=13f estimated embedment depth Ib soil bearing pressurep:=200 -fr 'Stix od=P ---§1-=866.667Ibft' "2.923 2.751 2598 2.462 F 2.778 2598 2.482 2.339 A,=234---A=-2.647 2.506 2358 2227 2.551 2.399 2.263 2.142 Av.;bychik=nel,+a C2 Ci Hi ==6H2 14.542 14.065 13.631 13.234 70'(55)Pole.: ga 14142 13.631 13.234 12.869/ff -80'(65)Pole embedment depth in feet13.772 13.383 12.928 12.531 90°(75)Pole100°(85)Pole13.495 13.048 12.641.12.269 38/2003 10 HSfondew'hframe.mcd Bethel to Doniin Creek 138 kV Transmission Line Single Loop Gallop Calculations 300,400,500,600 ft spans No-Dampening Assumptions: Conductor is at 32°F and is covered with 0.5"ice. 25 mph Wind Wind load on conductor is 1.6 Ibs per sq.foot:F,,=16DiameterofConductor: k:=1..2 d,:= Cardinal 1.196-in Weight of conductor: wtcond,= Mallard =14.235-1b-| Cardinal 1.229-Ib-' Weight of Ice on Conductor: Radius of ice:ri :=0.5-in Density ofice:id :=57-- Total Weight of Conductor:Wrota,[=wtice,+wicond, -(en)lb MallardWootal=2284 tt Cardinal - Force of wind on conductor:Pe =Fw-(ce +2-11)« Pe=|9593)R Cardinal GALLOPBethnd.med 2/25/2003 Bethel to Donlin Creek 138 kV GALLOPBethnd.med Transmission Line Pe,>(TATTSwingangle:$,:=atan|--o=deg Wyrotalk, Final sag of conductor at 32°F with 1/2"ice: Sag =,200R Span Sagi,:=,400R%Span Sag2,=,500 Span Seg3,:=,600ftSpan Mallard [4.0 6.4 92 h24 Cardinal {4-4 7 10 G34 1.300 FOOT SPAN Parameters of Lissajous Ellipses: M,:=1.25-Sag,+1 where M=Major Axis Lissajous ellipse in feet B,:=0.25-Sag,See Figure page 4 i D,:=0.4-M,where D=Minor Andis Lissajous ellipse in feet Conductor &o-1.5 TT Sag,=M,=By =D,=«= 4 8 1 2.4 deg degMallard7.177][10.765 Cardinat 44 6.5 11 26 7.307 10.98 2.400 FOOT SPAN Parameters of Lissajous Ellipses: M,:=1.25-Sag1,+1 where M=Major Axis Lissajous ellipse in feet B,:=0.25-Sag1,See Figure page 4 D,:=0.4-M,where D=Minor Ads Lissajous ellipse in feet $x $1.5ConductorSagt,=M,=By =Dy =-= 6.4 9 1.6 3.6)cea degMallard:7.177][10.765 7 9.75 1.75 3.9 . Cardinal 7.307} }10.96 Bethel to Donlin Creek 138 kV Transmission Line GALLOPBethnd.med 3.500 FOOT SPAN Parameters of Lissajous Ellipses: M,:=1.25-Sag2,+1 where M=Major Axis Lissajous ellipse in feet B,:=0.25 -Sag2,See Figure page 4 D,:=0.4-M,where D=Minor Axis Lissajous ellipse in feet Sagd,=My=Conductor +1.5B,=D,=- 9.2 12.5 23 §deg degMallard=TATT 10.765 Cardinal 1 13.5 25 5.4 7.307 10.96 2.600 FOOT SPAN Parameters of Lissajous Ellipses: M,:=1.25-Sag3,+1 where M=Major Aods Lissajous ellipse in feet B,:=0.25-Sag3,See Figure page 4 D,:=0.4-M,where D=Minor Aocs Lissajous ellipse in feet Conductor +15 Mallard 124 165][31 7)deg ava :-.7.177 10.765 Cardinal 13.4 17.75 3.35 7 7.307 10.96 3 2/25/2003 Bethel to Donlin Creek 138 kV Transmission Line Bulletin 17248-2006 Page 6-6 FICE 6-3:CUIDE POR PREPARATION OF LISSAJOUS ELLIPSES ES FF AAO PUNT SE CORDECHEE ATEALOERTee!ee f - Major |¥*1-23 5,+2008 Pia ar we soe YES FE Se te |a Bo $59 6 41 pnarars wet Aes re wes Py fs 5? Distance 0 25 5,Bq,S12]2 ue fq.6-16 tMinerooamBeeteecoe|meetpaleoatEq.a where: Pe wind load per unit length on iced conductor in B/m (lbe/fr). Assume a .0958 kPa (2 psf)wind,- .° Vo o weight per unit length of coaducter plus 12.7 am (.5 in.)of radial ice in W/e (lbs/ft)(fer atendard gravity 1 kg =9.81 K). Le span length in meters (feet).: N=sejor axis of Lissajous ellipses in meters (feet). 54 =final sag of conductor with 12.7 we (.5 in.)ef radial lee, no wind,at O°C (32°F). D«=minor axis of Lissajous ellipses in meters (feet). 8,¢-are as defined tn figure abeve, GALLOPBethnd.mcd 2/25/2003 Bethe!to Donlin Creek 138 kV Transmission Line Single Loop Gallop Caiculations 300,400,500,600 ft spans With-Dampening Assumptions: Conductor is at 32°F and is covered with 0.5"ice. 25 mph Wind Diameter of Cond uctor: k:=1.2 a,= Mallard ft-144-in Cardinal 4.196-in Weight of conductor: wtcond,= Mallard =4.235.1b-8t' Cardinal 4 229-1b.¢' Weight of Ice on Conductor: IbWindloadonconductoris1.6 Ibs per sq.foot:F,,:=1 ae Radius ofice:i:=0.5.in Density of Ice:=57.2ft 2 2{a (+wicea,=x $-+h] |-]|ion=x ($40)-(3 ->{1.004 )tbwice=_- 1.055 /ft Total Weight of Conductor:Mot 2=Wiice,+wtcond,& ->(2239)pb MallardMott=|5094)Cardinal Force of wind on conductor:Pe =Fw-(dy +2-ri) >(0282)tb Mallard Pe=|9293}Cardinal GALLOPBethwd.med Bethel to Donlin Creek 138 kV GALLOPBethwd.med Transmission Line Swing angle:$,:=ata is ;(ied)ng angie:«c=atan wa =7.307 deg Final sag of conductor at 32°F with 1/2"ice: ,2008Spen Sagi,=,400 ft Spen Sag?:=,500f%Span Seg3,:=,800ftSpan Mallard =2.8 4.6 6.8 9.3 Cardinal P-1 5.1 7.5 10.1 1.300 FOOT SPAN Parameters of Lissajous Ellipses: M,:=1.25-Sag,+1 where M=Major Axs Lissajous ellipse in feet B,:=0.25 -Sag,See Figure page 4 D,:=0.4-M,where D=Minor Axis Lissajous ellipse in feet Conductor ox $41.5Sag,=M,=By =D,=-2 28 a5][07 1 deg degMallard-8)a7 10.765 Cardinat =L3-1 4.875][0775)[4-95][7307 40.96 2.400 FOOT SPAN Parameters of Lissajous Ellipses: M,:=1.25-Sag1,+1 where M=Major Axis Lissajous ellipse in feet B,:=0.25-Sag1,See Figure page 4 D,:=0.4-M,where D=Minor Axis Lissajous ellipse in feet Conductor +&1.5-Sagi,=M,=By =D,=== Mallard 46 6.75 1.18 27 deg degala-::7.477 10.765 Cardinal =LS 7.375|[1.275)[2°][7307 10.96 2 2/25/2003 Bethel to Donlin Creek 138 kV Transmission Line 3.500 FOOT SPAN Parameters of Lissajous Ellipses: M,:=1.25-Sag2,+1 where M=Major Axis Lissajous ellipse in feet B,:=0.25 -Sag2,See Figure page 4 'D,:=0.4-M,'where D=Minor Axis Lissajous ellipse in feet Conductor oy $1.5reSag2,=M,=By =D,=deg ww = Mallard 6.8 9.5 1.7 3.8 Cardinal 7.5 10.375 ||1.875 4.15 2.600 FOOT SPAN Parameters of Lissajous Ellipses: M,=1.25-Sag3,+1 where M=Major Axis Lissajous ellipse in feet B,:=0.25-Sag3,.See Figure page 4 D,:=0.4-M,where O=Minor Avis Lissajous ellipse in feet Conductor.x 15-Sag3,,=My,=By =D,=deg =deg =Mallard 9.3 12.625 ||2.325 5.05 7477 10.765 Cardinal 10.1 13.625 }|2.525 5.45 7.307 10.96 GALLOPBethwd.med 2/25/2003 Bethal to Donlin Creek 138 kV Transmission Line Bulletin 17248-2060 Page 6-6 FICRE 6-3.CUIDE FOR PREPARATION OF LISSAJOUS ELLIPSES Rie -1 re"e ale ba.6 Single Loep Double Lonp : tetra)\fren oh =Otetric}Major }Be t.rs 5,¢sone Eq.6-80 |R=«3058 2]meee EG gigAnis(English)ts;(English)""Bo t.F sot Eq.€-hi rerio po Sq.tS _3 -vals pegtance Be 238,;Eq.6-12]8°ms Eq.6-16 UxetrMiner|o.Pee,ewe |Bq.6-17 Axis Eq.&'3 >.art Ciug lish)ES ad 7 im Eq.618 ' wbere Pe vind load per unit length on iced conductor in N/a (lbe/fc). ,Aseume a .0958 kPa (2 paf)wind. Wo +weight per unit length of conducter plus 12.7 mm (.5 in.)of radial fee in N/a (lde/ft)(fer standard gravity 1 kg =9.81 K). L spam length in meters (feet).. N-sajor axis ef Lissajous ellipses in meters (feet). S54 @ finel sag cf conductor with 12.7 am (.5 is.)of radial ice, no wind,at O°C (32°P). D=minor axis of Lissajous ellipses in meters (feet). B.@ -are an defined in Figure abeve. GALLOPBethwd.med 2/25/2003 Bethel to Donlin Creek Mine 138kv Transmission Line Double Loog Gallop Caiculations -No Dampening 800°and 1000°Spans Assumptions: Conductor is at 32°F and is covered with 0.5”ice. 25 mph Wind Wind load on conducior is 1.6 ibs per sq.foot F =1.5. Diameter of Conductor. k:=1..2 k= Mallard 1.114-in Cardinal 1.196-in Weight of conductor: wicond,:= Mallard =4235.1b-fr (Cardinal 1 299.1b-4' Weight of Ice on Conductor: Radius of ice:rj :=0.5-in Density ofice:id:=aa Total Weight of Conductor:"otal,=Whice,+wicond, Motel =2284 ry Cardinat 3/4/2003 .1 GALLOPnd.MCD Bethel to Donlin Creek Mine 138kv Transmission Line Force of wind on conductor:Po =Fw:(dk +2-ri) >0.282 \Ib MallardPc=0.293 ry Cardinal Final sag of conductor at 32°F with 1/2"ice: Sagi,:=,800ftSpan Sag2,:=,1000ffSpan 19.8 28.721.5 B12 1.800 FOOT SPAN Assmes Double Loop Gallop Parameters of Lissajous Ellipses: L:=800 where L=span length a=|(5)+(62019? 8 (Saat,)*2 A3-L "*|where M=Major Axis Lissajous ellipse in feet Rg L+FMy :=1+|3-a- B,:=2-M,See Figure page 4 Dy :=2,j M,-1 where D=Minor Axis Lissajous ellipse in feet Conductor ha 15 onductor -os =SOGTg =My =B,=Dy =deg degMallard19.8 8.011][1.602 5.206 7.177 10.765 Cardinal 21.8 8.615 1.723 5.519 7.307 10.96 3/4/2003 2 GALLOPnd.MCD Bethe!to Donlin Creek Mine 138kv Transmission Line 2.1000 FOOT SPANAssmes Double Loop Gallop Parameters of Lissajous Ellipses: L:=1000 where L=span length where M=Maijor Ads Lissajous ellipse in feet ,B,=2-M,See Figure page 4 Dy 2/M,-1 where D=Minor Ads Lissajous ellipse in feet x 1.5Conductor-=--=-=Sag =My =By ==deg deg Mallard 28.7 11.168 2.234 6.377 L477 10.765 Cardinal 31.2 12.058 2412 6.651 7307 10.96 34/2003 3 GALLOPnd.MCO Bethel to Donlin Creek Mine 138kv Transmission Line 3/4/2003 Bulletin 1724£-200 Page 6-6 a>al vant 2a}Be.6-9SiagieLoopDesbleLeopPajor|¥*3-28 8;+2008 tg nts ee san Yo Se er | B*Lash!Senapare set df hes *Goa Pistencd pees,Eq.Getz]be tq.6-16 Siner |ae waa By.6-13 aiaeatliiend pad"p"po =T Req.6-18 where Pe =Wind losd per unit length on iced conductor in N/a (lbe/fe). Asoume «@ .O958 kPa (2 psf)wind. We =weight per umit length of conducter plus 12.7 am (.35 in.)of radial ice im B/e (lbe/ft)(fer standard gravity 1 kg =9.81 BH) Le span length in meters (feet).| Ne major axis of Lissajous ellipses in esters (feet). 34 -fine]seg of conductor with 12.7 ms (.5 in.)of radial ice,----MO wind,at-Of (32°F)-eeDeminoraxisofLisssjousellipsesinesters(feet). 5.@->are as defined in figure abeve.>GALLOPnd.MCD Bethe!to Donlin Creek Mine 138 kV Transmission Line Doub og Gallop Calculations -h Dampenin 800"and 1000°Spans Assumptions: Conductor is at 32°F and is covered with 0.5”ice. 25 mph Wind Wind load on conductor is 1.6 Ibs per sq.foot:Fy :=16.2 Diameter of Conductor.us k=1.2 d= Mallard fi144-in Cardinal 1.196-in Weight of conductor: wicond,= Mallard 4.235.b-# Cardinal 1 279.1p.7' Weight of Ice on Conductor: Radius of Ice:ri:=0.5-in Density of Ice:id :=57 L ft Total Weight of Conductor:Whoa =Wiica,+wtcond,, Mista=|5 84)ff Cardinal 3/4/2003 1 GALLOPwd.med Bethai to Donlin Creek Mine 138 kV Transmission Line Force of wind on conductor:Pe =Fw-(cy +2-ri) Pe=\9203)R Cardinal Swi angle =ata {--(A }0falngie:>={o=g kk ;=, Final sag of conductor at 32°F with 1/2"ice: Sagi,:=,800ftSpan Sag2,:=,1000 ftSpan 21.8 24.1 15.1 16.4 1.800 FOOT SPAN Assmes Double Loop Gallop Parameters of Lissajous Ellipses: L:=800 where L=span length ax =|(5)+(seat)? 2Sag11HO 20,oa pe:oo.3-L where M=Major Axis Lissajous ellipse in feetM,:=1+3-&: B,:=.2-M,See Figure page 4 D,=2,/M,-1 where D=Minor Ais Lissajous ellipse in feet .61.5Conductor.3g.lopeti(eC ESagi,=Mc =B,=k=deg degMallard15.1 6.343 1.268 [4623 7.177 10.765 Cardinal 16.4 6.804 1.361 4.818 7.307 10.96 GALLOPwd.med34/2003 Bethel to Donlin Creek Mine 138 kV Transmission Line 2.1000 FOOT SPANAssmes Double Loop Gallop Parameters of Lissajous Ellipses: L =1000 where L=span length Ly?a=IQ +(Sag2,)° M,:=1 +3-a&--=where M=Major Avis Lissajous ellipse in feet B,:=.2-M,See Figure page 4 D,:=2,/M,-1 where D=Minor Axts Lissajous ellipse in feet . o%1.5Conductor-==Saga,=M,.==D,=deg degMallard21.8 B77]=[t743 5.556 7177 10.765 Cj 24.1 9.533 1.907 §.842 7.307 10.96 3/4/2003 3 GALLOPwd.med Bethel to Donlin Creek Mine 138 kV Transmission Line Belletin 17242-2006 Page 6-6 FIGCRE 6-3:GUIDE FOR PREPARATION OF LISSAJOUS ELLIPSES 1+"Eq.9 Sizgie Loop Double Lecp (metric)fate Si.ar «=Cetric)Major |¥°1.23 8,+2008 Bq.6-10)Reo oe Wee 6-14 mis (Baglish)(Englist)er petesger ||Bq.EE]eotdf=to zo 8.é15 e y's a2 raat Le 23%Bq.IZ >Bo om Iq.16 .Udsetric Minor 0 am my.+13 De t.leA-See Be.6-17 axis *lish)">"o-a-T eis where: c Pe @ wind loed per unit length on iced conductor in N/a (ibe/fe). Asoume «.0938 kPa (2 psf)wind. Ve =veight per wait length of conductor ples 12.7 am (.5 in.)ofracialiceimH/e (lbs/ft)(fer standard gravity 1 kg =9.81 K) Le span length in meters (feet). N=wajor axis of Lissajous ellipses in meters (feet). 54 ©final sag of conductor with 12.7 am (.5 in.)of radial fice, no wind,at O°C (32°F). D = ainor axis of Lissajous ellipses in meters (feat). B.@ -are as defined in figure above. 3/4/2003 4 GALLOPwd.med Bethel!to Donlin Creek Mine 138 kV Transmission Line Conductor Blowout and R.O.W.Width Calculations Conductor -954 ACSR (Cardinal) Diameter Conductor d:=196m Weight Conductor =wtcond:=2292 100 Mph Extreme Wind)Fw:=256 pig p:=dFw p=262ft x=a P }'x=643 deg sin(x)=0.9 Single Pole Structure Types 1,2,3 &3A Distance from Centerline to Outer Conductor dist :=5ft Required NESC clearance to structures -nese :=12.1f 1:=0..6 NO DAMPENING Span '=Sagi ==Blowout;:=Sag;-sin(x) 2.5ft BOOft 4.8ft 623) MOC 7.5K 43 Soom |10.6ft 68: BOUL 14.2fFOOR18.2f Blowout;=|9.5 ift x oft 2.5%128: 16.4 \20.3, Required R.O.W.width Row;:=(Blowout;+dist +nesc)-2 Span;= 38.7)38.7 DOOR 1428 4477:4 00F Row=|53.3 {ft mszrc (598f - 4 67 KIA M749} 3/11/2003 .1 Condbiowout854.med Bethel to Donlin Creek Mine 138 kV Transmission Line H-Fame and X-Frame Structures Distance from Centerline to Outer Conductor =dist =15ft Required NESC clearance to structures nese :=12.1ft insulator String Length Isl :=5ft 1:=0..6 Span;:=Sagi Blowout;:=Sag;-sin(x) GOO 14.2h 7700818.2 (12.8R008_bose 1644 00R 738 0310008B58 12008 44.18 29.34 34.3 \39.7 3 Required R.O.W.width Row;:=(Blowout;+dist +nesc +Ist)-2 Span;= /$9.8 >So0R 7 700ft 104.7 sane | Row=|113.4 {ft ait128)=fTioon132.9 12008(143.7): 3/11/2003 2 Condblowout@54.med Bethel to Donlin Creek Mine 138 kV Transmission Line WITH DAMPENING ingte Pol r Distance from Centerline to Outer Conductor Required NESC clearance to structures Span;:=Sag;= ORE L7R BiH 3.58 5.78% }RAn. GOGH.aa POOR 14.38 OE 78H Required R.O.W.width Row,:=(Blowout;+dist +nesc)-2 44.5. Row =|49.2| 37.3) 40.5 | 6.33 HF:a Fra Span;= DGOH BOOT pan Soon ODE POOH suas dist=S5ft nese :=12.1ft Blowout;:=Sag;-sin(x) (15% Distance from Centerline to Outer Conductor =dist :=15ft Required NESC clearance to structures Insulator String Length Isl :=5ft i=0.6 Span;:= 600K FOO SOOR 800i OOD 12008 1200f 3/11/2003 nese =12.1ft Condblowout@54.med Bethel to Donlin Creek Mine 138 kV Transmission Line Required R.O.W.width Row,:=(Blowout;+dist +nesc +Is})-2 3/11/2003 {$4.4ua" Row=|103.3 {1 110.7} 118.67 Span;:= 600f 96.3 127.19, CondblowoutS54.med ALUMINUM COMPANY OF AMERICA SAG AND TENSION DATA Bethel 138 kV Transmission Line 954 ACSR Northern &Southern Zone With Dampening CONDUCTOR CARDINAL 954.0 KCMIL 54/7 STRANDING ACSR AREA=-8462 SQ.IN. DATA FROM CHART NO.1-838 ENGLISH UNITS SPAN=200.0 FEET HEAVY LOADING CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS FINAL INITIAL TEMP ICE WIND K WEIGHT SAG TENSION SAG TENSION FE IN PSF LB/F LB/F FT LB FT .LB 0.-50 4.00 30 2.698 1.31 10270.1.25 10813. 32.1.00.00 00 3.961 2.17 9120.1.99 9954. 32.-50 00 .00 2.284 1.47 7747.1.26 9054. 32.-00 25.60 00 2.832 1.73 8188.1.52 9327. -70.-00 -00 00 1.229 44 13828. 44 13628,-15,-00 00 200 1.229 57 10809.55 11153.* 0.-00 00 00 1.229 64 9562.59 10372. 30.G0 -00 -00 1.229 86 7147.«79 8746. 60.-00 #.00 -00 -1.229 .1.23 4978.87 7063. 90.-90 00 -00 1.229 31.83 3364.3.14 5392. 122. 00 .00 90 1.229 2.40 2557.1.61 3818, SPAN=300.0 FEET HEAVY LOADING CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS FINAL INITIAL TEMP ICE WIND K WEIGHT SAG TENSION SAG TENSION F IN PSF LB/F LB/F FT LB _ET LB 0.-50 4.00 -30 2.698 2.83 10749.2.69 11277. 32.1.00 00 -00 3.961 4.27 10442.4.04 11035.° .32.50 =.00 00 2.284 3.08 8345.2.70 |9535.-32...°.00 25.60 «90 2.832 3.52 9047.3-18.10015. -70..-00 -00 00 1.229 1.00 13785.1.00 (13785.15.0 -00 -00 60 1.223 -1.31 10544.1.2€.321154.*.0.00 -60 -00;1.229 1.48 9360.1,33.10392. '30.«00 -00 00 1,229 1.94 7143.1.57 6830. 60.«00 -00 -90 1.229 2.61 3291.1.91 -7257..90.-00 -00 00 1.229 3.48 .3970.2.46 5764. 122.-00 00 00 1.229 4.48 3093.3.13 4422... SPAN=400.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP F '0. SPAN= ICE WIND IN PSF 50 4.00 1.00 -00 50 60 -00 25.60 -00 -00 -00 .00 -00 00 -00 -00 -00 -00 -00 00 00 -00 500.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP F SPAN= ICE WIND IN PSF -50 4.00 1.00 .00 -50 00 .00 25.60 00 00 00 00 00 -00 00 .00 00 00 00 00 00 00 600.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS| TEMP F 0. 32. ICE IN -50 WIND PSF 4.00 -00 00 25.60- _-00-00.- -60 .00° -00 -90 -60 HEAVY LOADING K WEIGHT LB/F LB/F -30 2.698 -00 3.961 -00 2.204 «00 2.832 00 1.229 00 1,229 -00 1.223 -00 1.229 -00 1.229 -00 1.229 00 1.229 HEAVY LOADING K WEIGHT LB/F LB/F -30 2.698 .00 «3.961 -00 2.284 .00 2.832-00 =15229-00 «=1.229-00 1.229 -00 1.229 -00 1.229 -00 1.22900=:1.229 HEAVY LOADING K WEIGHT» LB/F LB/F -30 2.698 00 3.961 -00 2.284 .00 2.832 -00 1.229 -00 1.229 00 1.229 -00 1.229 -00 1.229 00 1.229 .00 1.229 FINAL SAG TENSION FT LB 4.78 11304. 6.79 11679. 5.10 8967. 5.73 9891. 1.79 13728. 2.39 10294; 2.67 9194. 3.41 7207. 4.37 5623. 5.48 4493. 6.67 .3688. FINAL SAG TENSION FT LB 7.10 11887. 9.67 12829. 7.46 9576. 8.29 10695. 2.81 13657. 3.81 10088. 4.23 9084. 5.25 7324. 6.46 5953. 7.76 4956. 9.14 4207. FINAL SAG TEK3ION FT LB 9.75 22471. 12.85 13900. 10.13 193160. 11015-11453. "4.08 13572. 5.57 3935. 6.13 9030. '7.41 7474. 8.83 5268. 10.31 5371. 4670.11.87 INITIAL SAG TENSION FT LB 4.58 11803. 6.56 12097. 4.54 10061. 5.28 10735. 1.79 13728. 2.20 11154.* 2.36 10419. 2.75 8935. 3.29 7480. 4.00 6146. 4.95 4966. INITIAL SAG TENSION FT LB 6.84 12349. 9.46 13105. 6.74 10594. 7.755 (12442. 2.81 13657. 3.44 1115¢.* 3.68 10451. 4.24 9052. 4.98 7714. 5.90 6514. 7.05 5453. INITIAL SAG TENSION FT LB 9.43 12891. 12.72 14051. 9.26 11113. 10.53 12118.4,08 =13572.|4.96 11154.* 5.28 10486. 6.03 9176. 6.96 7947. 8.07 6858. 9.40 5891 SPAN=700.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP ICE WIND F IN PSF 0.-50 4.00 32.1.00 00 32.-50 -00 32.-00 25.60 -70.-00 -00 -15.-00 00 0.-00 -.00 30.-00 .00 60.-00 ..00 90. 00 -00 122.-00 00 SPAN=800.0 FEET CREEP IS NOT A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP ICE WIND F IN PSFOo.-50 4.00 32.1.00 -00 32.-50 ..00-32.-00 25.60 70.-00 .00 --18.-00 00 0.-00 .00 30.-00 -00 60.00 -00 90.-00 .00 122.-00 .00 SPAN=900.0 FEET CREEP IS NOT A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP ICE WIND F IN PSF 0...50 4.00 32.1.00 00 32. 50 00 32..00 25,60 -70.00 00 15.-00 .06 .00 -0030.°°00 -0060.-00 -00 90.-00 -00 122,-00 .00 HEAVY LOADING K WEIGHT LB/F LB/F - -30 2.698 -00 3.961 -00 2.284 -00 2.832 00 1.229 00 1.229 -00 1.229 00 1.229 00 1.229 -090 1.229 .00 1.229 HEAVY LOADING K WEIGHT LB/F -LB/F -30 2.698. -00°3.961 -00 2,284 -00 2.832 60 «1,229 -00 1.229 -00 1.229 .00 1,229 -00 1.229 00 1.229 -00 1.229 HEAVY LOADING K WEIGHT LB/F LB/F -30.2.698 00 3.961 -00 2.284 -00 2.832 00 1.229 00 §=©1.229 -00 1,229 -00 1.229 -00 1.229 00 1.229 00 =1.229. FINAL SAG TENSION FT LB 12.70 13042. 16.33 14903. 13.08 10713.14.29 =12166.5.62 13393. 7.66 9832. 8.35 9022. 9.86 7641, 11.48 6566. 13.12 5748. 14.83 5087. FINAL SAG TENSION FT LB 16.03 :.3497. 20.17 -.5766. 16.42 '1156. 17.81 1.2757. 7.64 '2867. 10.20 9650. 11.01 8936. 12.74 7726. 14.53 6777, 16.32 6038. 18.27 5425. FINAL SAG TENSION FT LB 19.71 13899. 24.33 16544, 20.09 11540. 21.66.13279. 10.10 12333. 13.15 9471. 14.08 8848. 16.00 7790. 17.94 6950. 19.86 6283, 21.84 5715. INITIAL SAG TENSION FT LB 12.34 13418. 16.29 14937. 12.07 11609. 13.62 12759. 5.59 13479. 6.75 11154.* 7.16 10523. 8.10 $300. 9.22 8171. 10.50 7176. 11.99 6286. INITIAL SAG TENSION fT LB 15.53:13924. 20.17 15766. 15.15 12080.16.99 |13363.7.35 13377. 8.82 11154.* 9.32 .-"10561.10.44 *>9422. 11.74 8382. 13.19 7468. 14583 6644. INITIAL SAG TENSION FT LB 19.01 14405. 24.33 16544. 18.51.12524. 20.64 |13932. 9.38 13270. 11.17.-:11154.*11.75 |10598.13.06 9540. 14.52 8580. 16.11 7736. 17.89 6969. SPAN=1000.0 FEET CREEP IS NOT A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP SPAN= CREEP IS NOT A FACTOR ICE WIND IN PSF -50 4.00 1.00 -00.50 =-.00500.25.60: 00 00 -00 00 00 60 (00 00"100.80 -590 60 _,00 -00 1100.0 FEET *DESIGN CONDITION DESIGN POINTS TEMP F 0. 32. SPAN= CREEP IS NOT A FACTOR ICE WIND IN PSF -50 4.00 1.00 .00 -50 .00 -00.25.60-00 =.00..00 =.00 .00 .00 .00 00.00 =.0000=.00.00 00 1200.0 FEET *DESIGN CONDITION DESIGN POINTS TEMP _F 0. 32. 32. 32.. ICE IN 501.00-50. ",00 400 £00 "£00 -00 60 90 200 WIND PSF HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT LB .«30 2.698 23.68 14284. -00 3.961 28.79 17275. -00 2.284 24.06 11903. 00 2.832 25.80 13770. -00 1.229 12.95 11870. -00 1.229 16.47 |5344. 00 1.229 17.49 8797. -00 1.229 19.57 7865. -60 1.229 21.65 7115. -600 1.229 23.68 6507. 00 1.229 25.78 5979. HEAVY LOADING FINAL _K WEIGHT SAG TENSION LB/F LB/E FT LB 30 2.698 27.95 14652. 90 3.961 33.52 17963. -00 2.284 28.31 12246. -00 382.832 30.22 14232. -00 1.229 16.21 11480. -00 1.229 20.12 9256. -00 1.229 21.23 8775. -00 1.229 23.45 ©7947: -00 1.229 25.64 7270. -00 1.229 27.78 6713..00.1.229 30.00 -6221, HEAVY LOADING FINAL K WEIGHT SAG TENSION. LB/F LB/F 'EY LB -30 2.698 32.50 15002. -00 3.961 38.52 18611. 60 .2.284 32.84 12568. 00 2.832 34.92 14666. -00 1.229 19.86.11158. .00 1.229 24.10°9198. -00 1.229 25.28 8771. -00 1.229 27.62 -8031. .00 1.229 29.92 7417. -00 1.5229 32.17 6904. -00 1.229 34.48 -6444. INITIAL SAG TENSION FT LB 22.76 14863. 28.79 17275. 22.12 12942. 24.55 14468. 11.68 13159. 13.79 11154. 14.46 10634. 15.94 9651. 17.56 8763. 19.29 7981. 21.20 7264. INITIAL SAG TENSION FT LB 26.77 15296. 33.52 17963. 25.98 13335. 28.72 14971. 14.26 13047. 16.69 11154.17.45 -10669.19.08 9756, -20.85 6933. 22.71 8205. 24.74 =.7533. INITIAL SAG TENSION ET LB 31.03 15707. 38.52 18611. 30.10 13704. 33.14 15446. 17.12 12936.19.86 |11154.-20.70 10701. 22.49.9853. 24.39 9089. 26.37 e411. 28.52 7780. ALUMINUM COMPANY OF AMERICA SAG AND TENSION DATA Bethel 138 kV Transmission Line Northern &Southern Zone No Dampening CONDUCTOR CARDINAL AREA=.8462 SQ. DATA FROM CHART NO. ENGLISH UNITS SPAN=200.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP ICE WIND F IN PSF .0.-50 4.00 32.1.00 .00 32...50 .00 32. .00 25.60 -70..00 .00 -15..00 .00 0..00 .00 30..00 -.00 60..00 .00 90..-.60 .00 122,..00 00. SPAN=-300.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP ICE WIND F IN PSF 0.-50 4.00 32.1.00 .00 32.-50 00 32..00 25.60-70.-00 =.00+15.00 §=.00.0...600 =).0030..00 .00 60.-.00 .00 90..00 .00 122.-60 .00 IN. 1-838 954.0 KCMIL HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT LB 30 2.6398 1.93 6978. 00 3.961 2.92 6790. .00 2.284 2.28 5005. 00 2.832 2.52 5621. -00 1.229 ',63 9708. -00 1.229 92 6709. .00 1.229 1.10 5608. 00 1.229 1.62 3789. 00 1.229 2.31 2659. 00 1.229 3.00 2048. .00 1.229 3.56 1731. _HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F ET 'LB .30 2.698 3.96 7665. .00 3.961 5.44 8211. 00 2.284 4,42 5818. 00..2.832 4.80 .6649. 00 1.229 1.45 9528. .00 1.229,2.18 6339. 00 1.229 2.54 5447. .00 1.229 3.40 4074. 00 1.229 4.33 3200. 00.1.229 §.22 2652. -00.1.229 6.10 2271. 954 ACSR 54/7 STRANDING ACSR INITIAL SAG TENSION PT LB 1.93 7007. 2.88 6895. 2.13 5368. 2.41 5889. -63 9708. 91 6760.* 1.03 5947. 1.39 4414. 1.93 3190. 2.57 2397. 3.24 1901. INITIAL SAG TENSION FT LB 3.90 7795. 5.38 8301. 4.14 .6213. 4.60 6935.- 1.45 9528. 2.05 _€6760.* 2.29 .6040. 2.91 .4749, 3.69 3752. 4.53 3058. 5.40 2563. SPAN=400.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP ICE WIND FE IN PSF 0.50 4.00 32.1.00 -00 32.-50 -00 32.-00 25.60 70._-00 00 -15.00 00 0.00 -90 30.-00 00 60. 00 -00 90.-00 -60 122.-00 00 SPAN=500.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP ICE WIND F IN PSF 0.50 4.00 32.1.00 -00 32.-50 -00 32.°.00 25.60 -70.-00 00 -15.00 -00 0.-00 -00 30.00 -00 60.-00 -00 '90.-00 -00 122.00 «00 SPAN=600.0 FEET CREEP IS NOT A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP IcE WIND FE IN PSF oO.-50 4.00 32.1.00 00 32.50 .«00 32.-00 25.60 -70.-00 +=.00 -15.-00 -00 0.-00 -00 30.-00 -00 60.90 -00 90.G0 -60 122..60 00 HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT LB -30 2.698 6.47 8347. -00 3.961 8.40 9447. 00 2.284 7.00 6536. -00 2.832 7.52 7548. -00 1.229 2.65 9295. -00 1.229 4.00 6152. -00 1.229 4.51 5449, .00 1.229 5.63 4374. 00 1.229 6.75 3649. -00 1.229 7.82 3151. -00 1.229 8.88 2776. HEAVY LOADING FINAL K WEIGHT 'SAG TENSIONLB/F =LB/F FT LB -30 2.698 9.41 8977. «00 3.961 11.78 10536. -00 2.264 9.98 7165. -00 2.832 10.64 8336. -00 1.229 4.28 8973. «00 1.229 6.32 6083. -00 1.229 6.96 5523. -00 1.229 8.27 4650. -00 1.229 9.55 4028. -00 1.229 10.78 3573. -00 1.229 12.00 3210. HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F ET LB -30 2.698 12.78 9523. -00 3.961 15.57 11486. -00 2.286 13.38 7700. -00 2.832 14.18 9013. -00.1,229 6.59 8397. -00 1.229 9.15 6053. 00 1.229 9.89 5601. -00 1.229 11.36 4878. -00 1.229 12.78 4338. -00 1.229 14.13 3924. .00 1.229 15,50 3580. INITIAL SAG TENSION Fr LB 6.35 8517. 8.35 9507. 6.59 6940. 7.24 7835. 2.65 9295. 3.64 6760.* 4.01 6136. 4.87 5048. 5.85 4207.6.86 3589.|7.91 3112. INITIAL SAG TENSION FT LB 9.22 9158. 11.76 10559. 9.45 7565. 10.30 8613. 4.25 9031. 5.69 6760.* 6.17 6225. 7.25.5303. 8.40 4579. 9.56 4024. 10.77 3574. INITIAL SAG TENSION FT LB 12.52 9724. 15.57 11486. 12.71 8106. 13.75 9292. 6.32 8758. 8.19 6760.* 8.78 6303. 10.04 5515. 11.34 4685. 12.64 4386. 13.99 3966. SPAN=700.0 FEET HEAVY LOADING CREEP IS NOT A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP F SPAN= ICE WIND IN PSF .50 4.00 1.00 00 50 00 -00 25.60 00 .00- -00 .00 00 00 00 00 00 00 00 00 -.00 00 800.0 FEET CREEP IS NOT A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP F SPAN= ICE WIND -IN PSF -50 4.00 1.00 -00 -50 00 -00 25.60 -00 00 .00 -00 00 -00 -00 |00. -00 -00 -,00 60 "00 .00 900.0 FEET CREEP IS NOT A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP F ICE IN 50 1.00 -50 00 -00 00 -00 -00 .00 00 -90 WIND PSF 4.00 -00 -00 25.60 -00 -00 -00 00 -00 -00 00 FINAL K WEIGHT SAG TENSIONLB/F LB/F FT LB 2 .30 2.698 16.60 9985. .00 3.961 19.79 12311. .00 2.284 17.23 8147. -00 2.832 18.15 9589. .00 1.229 9.52 7911. .00.1.229 12.50 6035. -00 1.229 13.31 5665. .00 1.229 14.91 5059. .00 1.229 16.45 4568. -00 1.229 17.92 4214. .00 1.229 19.42 3893. HEAVY LOADING FINAL K WEIGHT SAG TEK3ION LB/F LB/F FT LB .30 2.698 20.84 10397. -00 3.961 24.40 13049. 00 2.204 21.48 3540. '.00 2.832 22.53 19098.-60 1.229 13.03 7556. .00 1.229 16.31 6041. -00 1.229 417.19 5734. -00 1.229 18.90 5218. .00-1.229 20.54 4803. .00 1.229 22.11 (464. .00 1.229 23.72 4165. HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT LB .30 2.698 25.49 10764. -00 3.961 29.41 13712. .00 2.284 26.14 8887. .00 2.832 27.31 10551. 00 1,229 17.07 7302, .00 1.229 20.58 6062. -00 -1.229 21.51 5802. .00 1.229 23.31 5356. .00 1.229 25.05 4988. .00 1.229 26.71 4680. 00°1.229 28.41 4403. INITIAL SAG TENSION FT LB 16.21 10224. 19.79 12311. 16.36 8574. 17.60 9887. 8.87 8493. 11.15 6760.* 11.84 6369. 13.25 5692. 14,68 -5139. 16.10 46839. 17.587 4299. INITIAL SAG TENSION FT LB 20.31 10665. 24.40 13049. 20.41 8983. 21.85 10412. 11.93 8251. 14.57 "6760.* 15.33 6425. 16.88 5838. 18.43 5351. 19.95 4945. 21.53 4584. INITIAL SAG'TENSION FT LB 24.81 11055. 29.41 13712. 24.86 9340. 26.48 10877. 15.50 6039. 18.45 6760.* 19.28 6471. 20.94 5960. 22.59 5528. 24.20 5161. 25.88 4828. SPAN=1000.0 FEET CREEP IS NOT A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP ICE wIND F IN PSF 0.-50 4.00 32.1.00 .00 32.50 00 32..00 25.60 -70.00 .00 15..00 -00° 0.-00 .00 30.-00 -00 60.-00 .00 90. 00 00 122.-00 00 SPAN=1100.0 FEET CREEP IS NOT A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP ICE.WIND F IN PSF 0.-50 4.00 32.1.00 -00 32.-50 .00 32..00 25.60 -70..00 00 15.90 .00 6. 00 00 30.00 90 60..00 .00 90..*,00 -00 122.-acle)99 SPAN=1200.0 FEET CREEP IS:NOT A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP ICE WIND F IN PSF 0.-50 4.00 32.1.00 .00 32.+50 .00 32.-00 25.60. 70. 90 .00 -15. 90 .00 "9.00 .00 -.30..00 .00 '60..00 .00 90..00 .00 122..00 .00 HEAVY LOADING 1.229 FIN?K WEIGHT §SAG INSIONLB/F -LB/F FT LB -30 2.698 30.56 11092. .00 3.961 34.82 14310. 00 2.284 31.21 9194, .00 2.832 32.50 10954. .00 1.229 21.63 7121, 00 1.229 25.31 6090. .00 1.229 26.28 5867. 00 1.229 28.16 5478. 00 1.229 29.97 5150. 00 1.229 31.72 4869. .00 1.229 33.51 4612. HEAVY LOADING :FINAL K WEIGHT SAG TENSION LB/F _-LB/F FT _LB.-30 2.698 36.05 .11387.00 3.961 40.63 14852. 00 2.284 36.70 9468..00 2.832 .38.10 12316..00 1.229 26.67 6992. 00 1.229 30.49 6121. -00 1.229 31.49 5928. 00°1.229 33.44 5586.00 08=6-1.229 35,33 5291. :00 «41.229 «=37.14 5035. ,00 «91.229 «=39.01:4797. HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT LB 30 2.698 41.96 11652. .00 3.961 46.84 15344. -00 2.284 42.61 9712. 200 2.832 44.11 11642. 00 1.229 32.19 6899. .00 1.229 36.12 6154. 00 1.229 37,15 5965. 00 1.229 39.16 5681. 00 1.229 41.11 5415.00 «62.229 =42.99 5181. .00 44.93 4960. INITIAL SAG TENSION ET LB 29.72 11401. 34.82 14310. 29.71 9654. 31.52 11290. 19.59 7858. 22.79 6760.* 23.67 6509. 25.43 6062. 27.17 5677. 26.87 5346. 30.64 5039. INITIAL SAG TENSION .ET LB 35.05 11708. 40.63 14852. 34.98 9929. 36.96 11658. 24.19 7705. 27.59 6760.* 28.52 6541. 30.36 6148. 32.17°5804. 33.95 5503. 35.80.5221. INITIAL SAG TENSION ET LB 40.79 11982. 46.84 15344. 40.66 10172. 42.82 11986. 29.28 7578. 32.86 6760.* 33.82 6568. 35.73 6220. 37.62 5912.. 39.46 5639. 41.38 -5380. ALUMINUM COMPANY OF AMERICA SAG AND TENSION DATA Bethel 138 kV Transmission Line 795 ACSR Northern Zone With Dampening CONDUCTOR MALLARD 795.0 KCMIL AREA=.7669 SQ.IN.- DATA FROM CHART NO.1-757 ENGLISH UNITS SPAN=200.0 FEET CREEP IS A FACTOR *DESIGN CONDITION HEAVY LOADING 'DESIGN POINTS FINAL TEMP ICE WIND K WEIGRT SAG TENSION F IN PSF LB/F LB/F FT LB 0.-50 4.00 .30 2.665 1.19 11204. 32.1.00 00 -00 3.897 1.96 9928. 32.50 -00 .00 2.255 1.29 8718. 32.-00 25.60 00 2.728 1.51 9050.-70.00 -00 +.00 1.235 41 15246. -15.00 00 -00 1.235 52 11804. 'O.90 -00 .00 1.235 58.10608. 30.00 -00 .00 1.235 -75 8265. 60.00 -00 .90 81.235 1.902 6065. 90. 90 -00 -00 1.235 1.22 5051. 122.00 -00 .00 1.235 1.41 4396. SPAN=300.0 FEET HEAVY LOADING CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS FINAL TEMP ICE WIND K WEIGHT SAG TENSION Fr IN PSF LB/F LB/E |ET LB 0.650 4.00 .30 2.665 2.58 11647. 32.1.00 .00 .00 3.897 3.93 11179. 32..50 .06 .00 2.255 2.75 9242. 32.--.00 25.60 .00 2.728 3.13 9801."70.400 .00 .00 8 =©1..235 -91 15213. "15..00 .00 .00 1.235.1.20 11599. 0..00 .00 .00 1.235 1.33 10448, 30.-,00 ,00 .00 1.235 1.68 8247. 60..00 .00 .00 1.235 2.21.6287. 90..00 .00 .00.1.235 2.61 5327. (122..00 .00 .1.235 2.93 4749, 30/19 STRANDING ACSR INITIAL SAG TENSIONFTLB 1.08 12296. 1.71 11398. 1.05 10720. 1.25 10892. 41:15246. -.49 =12672.* -52 11959. 59 10531. 68 $110. -80 7718. °98 6299. INITIAL SAG TENSION ET LB 2.37 12672. 3.57 12300. 2.29 11068. 2.69 11399..91 0 -15213.1.10 12672. 1.16 11973. 1.31 10579. 1.51 9207. 1.76 7885. 2.11 6571. SPAN=400.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP F 0. 32. SPAN= ICE WIND IN PSF -50 4.00 1.90 .00° -50 00 -00 25.60 .00 00 .00 .00[00 =.00-00 =.00200=-.00-00 .00.00 --.00 500.0 FEET CREEP IS A FACTOR. *DESIGN CONDITION DESIGN POINTS TEMP F 0. 32. 32. BR. -=70. -15.. oO. 30. 60. 90. 122. SPAN= ICE WIND IN PSF -50 4.00 1.00 -00 -50 .00 -00 25.60-00 =.00.00 .00 .00 00 -00 .00 00 -00 -00 00 -00 ---.00 600.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP ICE IN -50 1.00 50 00 -00 90 -00 00 -00 00 -00 WIND PSF 4.00 00 -00 25.60 90 90 -00 -00 -00 00 00 HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT .LB -30 2.665 4.38 12165. -00 3.897 6.31 12378. 00 2.255 4.60 9806. «00 2.728 §.17 10569. .00 1.235 1.63 15169. -00 1.235 2.17 11386. 00 1.235 2.40 10299. -00 1.235 2.99 8272. 00 1.235 3.78 6546. -00 1.235.4.39 5632. 60 1.235 4.83 5114. HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/P FT LB -30 2.665 6.55 12718. 00 3.897 9.03 13509. .00 2.255 6.80 16377. -00 2.728 7.54 11319. 00 1.235 2.55 15114. -00 1.235 3.45 13196. -00 1.235 3.79 10184. 90 1.235 4.63 8344. 00 1.235 §.66 6822. 00 1.235 6.50 5941, -90 1.235 7.06 5472. HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT LB «30 2.665 9.04 13282. -00 3.897 12.06 14572. 00 2.255 9.29 10935. 00 2.728 10.21 12039. 00 1.235 3.74 14863. 00 1.235 5.03 11043. 00 1.235 §.50 -10112. 00 1.235 6.58 8451. -00 -1.235 7.83 7100. 00 1.235 -8.91 6246. 00 1.235 9.57 5814. INITIAL SAG TENSION - ET LB 4.06 13122. 5.89 13253. 3.93 11481. 4.56 11976. 1.63 15169. 1.95 12671.* 2.06 11990. 2.32 10640. 2.65 9330. 3.06 8087. 3.59 6879. INITIAL SAG TENSION ET LB 6.12.13611. 8.59 14200. 5.91 11926. 6.78 12579. 2.55 15114. 3.05 12672.* 3.21 12011. 3.60 10713.4.08 ©9469. 4.65 |8309. 5.37 7196. INITIAL SAG TENSION ET LB 8.51 14115. 11.62 15117. 8.20 12381. 9.32 13182. 3.69 15049. 4.39 12672. 4.62 12035. 5.15 10794. 5.78 9619. 6.51 8536. 7.41 7508. SPAN=700.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP SPAN= ICE WIND IN PSF -50 4.00 1.00 .00 -50 .00 .00 25.60:00 =.00-00 .00 .00 00 .00 .00 -00 .00 .00 00 -00 §=.00 800.0 FEET CREEP IS AFACTOR: *DESIGN CONDITION DESIGN POINTS TEMP FE 0. 32. 32. 32. -70. -15. QO. 30. 60.. 90. 122. SPAN= ICE WIND IN PSF _-50 4,00 1.00 .00 -50 .00 -00 25.60 -00 .00 -00 .00 -00 .00 00 00 00 00 00 .00 -00 §=©.00 900.0 FEET 'CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP FE QO. ICE 'IN -50 1.00 50 +00 -00 -00 .00 -90 -Q0 -00 00 WIND PSF 4.00 -00 00 25.60 00 -00 -00 -00 -00 60 .060 HEAVY LOADING FINAL _K WEIGHT SAG TENSION LB/F LB/F ET LB 30 2.665 11.81 13841. -00 3.897 15.37 15575. -00 2.255 12.06 11475. -00 2.728 13.15 12725. -00 =1.235 5:22 14513. -00 1.235 6.92 10932. -00 1.235 7.51 10082. 00 1.235 8.82 8585..0O 8 8=61.235 0 =10.27 7373. -00 2.235 11.58 6540. 00 1.235 12.34 6138. HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT LB 30 2.665 .14.85 14388. -00 3.897 18.93 16523. 00°2.255 15.07 11992. .00 2.728 16.35 13378, -00 1.235 6.97 14190. -00 1.235 9.10 10861. -00 1.235 9.80 10086. -00 1.235 11.32 8734. -00 1.235 12.95 7638. -00 1.235 14.51 '6821. 00 1.235 15.36 .6445. HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F ET LB -30 2.665 18.13 14919, -00 3.897 22.73 17421. -00 2.255 18.33 12487. «90 2.728 19.78 13999. -00°1.235 9.00 13900. 00 1.235 11.56 10823. 00 1.235 12.37 10118. -00 15235 14.08 8891. -00 1.235 15.87.7892. -00 1.235 17.67 7089. -00°1.235 18.61 6735. INITIAL SAG TENS ION FT LB 11.18 14619. 14.96 15996. 10.78 12833. 12.15 13772. 5.05 14976. 5.97)12672.* 6.27 12061. 6.96 10880. 7.74 S774. 8.64 8763. 9.70 7809. INITIAL SAG TENSION ET -LB 14.13 15113. 18.57 16836. 13.61 13275. 15.24 14343. 6.64 14895. 7.80 12672.*8.18 =:12088.9.01 10968. 9.96 9928. 11.01 8984. 12.22 8094. INITIAL 'SAG TENSION ET LB 17.34 15595. 22.45 17635. 16.69 13702. 18.59 .148692. 8.45 14809. 9.87 12672.* 19.33 12117. 12.32 11057. 12.42 10079. 13.61 9196. 14.37 -8364. SPAN=1000.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP F 0. SPAN= ICE WIND IN PSF 50 4.00 1.00 -00 -50 00 -00 25.60 00 00 -00 -00 00 -00 00 -00 .00 60 -00 -60 -00 -60. 1100.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP Fr 90. 122. SPAN= CREEP IS NOT A FACTOR ICE WIND IN PSF -50 4.00 1.00 -00 -50 .00 -00 25.60 -00 .00 00 00 00 00 -00 -00 -00 .00 «00 -06. 200 00 1200.0 FEET *DESIGN CONDITION DESIGN POINTS TEMP ICE IN -50 1.00 -50 .00 -00 06 .60 -00. ..00 WIND PSF 4.00 00 -00 25.60. 00 00 00 (00 60 .00 260 HEAVY LOADING FINAL K WEIGHT SAG TEX SION LB/F LB/F FT LB -30.2.665 21.65 15430. -00 3.897 26.76 13275. -00 2.255 21.81 12958. -00 2.728.23.44 14589. -00 1.235 11.32 13644. -00 1.235 14,29 13812. -00 1.235 15.20 10170. -00 1.235 17.08 5052. -00 1.235 19.02 3134. -00 1.235 20.96 7384. -00 1.235 22.08 7009. HEAVY LOADING FINAL K WEIGHT SAG TEIISION LB/F LB/F FT LB -30.2.665 25.39 7.8921. -00 3.897 31.01 7.9087. 60 2.255 25.51 1.3406. 00 2.728 27.32 °.5150. 00 1.235 13.93 1.3424. «09 -1.235 17.28 1.0823. 60 3.235 -18.28 70236. 00 1.235 20.32 9211. -00 4.235 22.38 8363. 00 1.235 24.44 7662. 00 1.235 25.78 7267. HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT LB .30 2.665 29.45 16340. -00 3.897 35.57 19815. 00 2.255 29.54 13787. -00 2.728 31.51 15638. .00 1.235 16.92 13155. 60.1.235 20.64 10787. -00 1.235 21.72 10255. -00.1.235 23.90 .9321. -00 1.235 26.09 8541. 60 1.235 28.26 7889, 06 1.235 29.59 7538. INITIAL SAG TENSION FT LB IN]TIAL SAG TENSION FT LB 24.49 16507. 30.95 |19123.23.57 14505. 25.99.15918. 12.78 14627. 14.75 |'.12672.* 15.36 .©12173. 16.66 11229,18.05| 10366.19.51 9589. 22.14 8855. INITIAL SAG TENSION ET LB 28.41 16936. 35.87 19815. .27,36 14880. 30.04 16397. 15.31 14533. 17.56 12672.* 18.24 12200. 19.68 21310. 21.21 10499. 22.80 -9769. 24.55 -9076. ALUMINUM COMPANY OF AMERICA SAG AND TENSION DATA Bethel 138 kV Transmission Line 795 ACSR Northern Zone No Dampening CONDUCTOR MALLARD 795.0 KCMIL 30/19 STRANDING ACSR AREA=-7669 SQ.IN.-DATA FROM CHART NO.1-757 ENGLISH UNITS SPAN=200.0 FEET HEAVY LOADING CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS FINAL INI TLAL TEMP ICE WIND K WEIGET SAG TENSION SAG TENSION F IN PSF LB/F LB/F FT LB FT LB 0.-50 4.00 .30 2.665 1.72 77159.1.71 7807. 32.1.00 -00 38.00 3.897 2.65 7372.2.56 7619. 32.-50 -00 .00 2.255 1.99 5680.1.78 6332. -32.|.00 25.60 .00 2.728.2.21 6189.2,06 6702. '70,..00 -00 .00 1.235 -60 10283. 60 10283. =15,.00 -00 .00 1.235 89 7680.-80 7680. o..00 -00 .00 1.235 93 6607.86°6992. 30.-90 -00 =.00 1.235 1.33 4640.1.09 5672. 60.-00 .00 3.00 1.235 1.92 3226.1.38 4486. *90.-90 -00 8.00 1.235,2.22 2782.1.76 3510. 122.-00 -00 =.00 1.235 -2.56 2415,2.25 2747. SPAN=300.0 FEET HEAVY LOADING CREEP IS A FACTOR . *DESIGN CONDITION DESIGN POINTS FIX AL INITIAL TEMP ICE WIND K WEIGHT SAG TENSION SAG TENSION F IN PSF LB/F LB/¥FT LB FT LB 0.-50 4.00 .30 2.665:3.61 8320.3.53 8499. 32.1.00 -00 .00 3.897 -§.03 8724.4,93 8915. 32s..50 .00 =.00 2.255)3.98 6383.3.61 '7026. 32.-00 25.60 .00 2.728 4.33 7098.4.05 7588. -70.-00 -00 .00 1.235 4.37 10156.1.37 10156. 15.200 .00 .00 1.235 1.92 7253.1.81 7680. Oo..00 -00 .00 1.235 2.20 6310.1:97 "7044. 30..00 -00 =.00 1.235 2.92 4755.2.37 5864. 60..00 -00 .00 1.235 3.77 3688.2.87 846. 50..00 -00 .00 15235 4.22 3298.3.45 £029. 122,.00 .00 .00 1.235 4.67 2977.4.12 3372. SPAN=400.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP SPAN= ICE WIND IN PSF -50 4.00 1.00 -00 -50 -00 -60 25.60 00 -00 00 -00 -00 -00 -00 00 -00 00 -00 00 -00 00 500.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP F 0. 32. '32. 32. 70. 15. ",0. 30. 6G. 90. 122. SPAN= ICE WIND IN PSF -50 4.00 1.00 .00 -50 .00 -00 25.60 -00 .00 -00 .00 500 =..00 .00 60 700 ",00. .00 .00 - .00 .00 600.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP F oO. 32. 32. 32. 70. 15. 0. 30. 60. 90. 122. ICE IN -50 1.00 -50 -00 »00 00 -00 -00 -00 00 -00 WIND PSF 4.00 -00 -60 25.60 -00 -00 -00 -00 -00 00 00 HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT LB -30 2.665 5.97 8936. -00 3.897 7.86 9931. 00 2.255 6.41 7050. 00 2.728 6.89 7935. 00 1.235 2.47 9991. -00 1.235,3.55 6970. 00 1.235 -3.99 6199. 00 1.235 4.98 4965. 00 1.235 ©6.03 4102. -00 1.235 6.61 -3741. .00 1.235 7.17 3450. HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT LB -30 2.665 6.74 9540. .00 3.897 11.08 11017. -00 2.255 9.22 |7661. 00 2.728 9.83 9692. -00 1.235 |3.94 9800, 00 1.235 5.65 6830. -00 1.235 6.23 6202. -00 1.235 7.43,5198. 00 1.235 8.65 4468. 00 1.235.9.37 4125. 00 1.235 10.02 3858. HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT LB -30 2.665 11.89 10107. .00 3.897 14.66 11999. 00 2.255 12.38 8213. -00.2.728 13.13 9375. -00 .1.235 $.95 9333. 00 1.235 8.20 6781. -00 1.235 8.88 6263. -00 1.235 10.26 5423. -00 1.233 11.62 4791. -00 1.235 12.48 4462. 00 1.235 13.22 4215. INITIAL SAG TENSION ET LB 5.82 9176. 7.75 10080. 5.88 7677. 6.50 8404. 2.47 9991. 3.22 7680.* 3.48 7106. 4.08 6063. 4.77 5185. 5.52 4477. 6.36 3891. INITIAL SAG TENSION FT LB 8.51.9806. 10.97 11127. 8.54 8267. 9.34 9140. 3.94 9800. 5.03 7680.* 5.39 7168. 6.18 6252. 7.04 .5486. 7.95 4862. 8.93 4332. INITIAL SAG TENSION FT LB 11.56 8797, 12.55 |9802. $279 9597. 7.24 7680.* 7.70 7228. 8.66 6423. 9.68 5749. 10.72 5193. 11.83:4708. SPAN=700.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP F SPAN= ICE WIND IN PSF -50 4.60 1.00 -00 50 00 -00 25.60.00-.0000-00 00 -00 -00 -00 00 -00 00 00 00 90 800.0 FEET CREEP IS A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP SPAN= CREEP IS NOT A FACTOR ICE WIND IN PSF .50 4.00 1,00 -00 °50 °00 ,00 25.60 00 -00 00 -00 00 -00 00 -00 00 -00 00 -00 00 -00 900.0 FEET *DESIGN CONDITION DESIGN POINTS TEMP F ICE IN 290. 1.00 .50 -00 WIND PSF 4.00 -00 -00 25.60 /00 -00 -00 00 60 -00 -00 HEAVY LOADING K WEIGHT LB/F LB/F -30 2.665 .00 3.897 -00 2.255 .00 2.728 .00 1.235 -00°1.235 -00 1.235 -00 1.235 -00 1.235 -00 1.235 .00 1.235 HEAVY LOADING _K WEIGHT LB/F LB/F =30 2.665 00 3.897 00 2.255 -00 2.728 -00 1.235 -00 1.235 00 1.235 -00 1.235 -00 1.235 »00 1.235 00°1.235 HEAVY LOADING K WEIGHT LB/F LB/F 30 2.665 90 3.897 .00 2.255 .00 2.728 -00 1.235 00 1.235 -00 1.235 00 1.235 00 1.235 00 1.235 90 1.235 FINAL SAG TENSION FT LB 15.40 10630. 18.59 12892. 15.90 8711. 16.77 9993. 8.49 8922. 11.17 6784. 11.93 6350. 13.45 5633. 14.94 5075. 15.94 4758. 16.75 4529. FINAL SAG TENSION ET LB 19.25 11109. 22.85 13706. 19.76 9160. 20.75 10552. 11.49 9607. 14.52 6815. 15.36 6446. 17.00.5624. 18.60 5327.- 19.74 5021. 20.63 4807. FINAL SAG TENSION FT L8 23.53 11512. 27.50 14418. 24.03 9537. 25.14 11029: 15.05 323. 18.36 6827. 19.25 6512. 21.00 5972. 22.69 5529. 23.84 5266. 24.79 5065. INITIAL SAG TENSION FT LB 15.01 10903. 18.53 12928. 14.94 9270. 16.12 10395. 8.06 9392. 9.86 7680.* 10.40 7282. 11.52 6573. 12.68 5976. 13.84 5477. 15.07 5033. INITIAL SAG TENSION FT LB 18.80 11374. 22.84 13707. 18.66.9696. 20.03 10931. 10.75 9197. 12.88 |7680.* 13.50 7329. 14.76 6704. 16.04 6173. 17,31 5722. 18.64 5315. INITIAL SAG TENSION FT LB 22.95 11800. 27.50 14418. 22.75 10073. 24.29 11413. 13.88 9018. 1631 7680.* 17.00 7371. 18.38 6818. 19.77 6342. 21.14 5934, 22.57 5560. SPAN=1000.0 FEET CREEP IS NOT A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP SPAN=- CREEP I NOT A FACTOR ICE WIND IN PSF -50 4.00 1.00 .00 -50 00 .00 25.60 -.00 .00 _.00 00 -00 .00 -00 .00 -00 .00 -.00 .00 00 00 1100.0 FEET *DESIGN CONDITION DESIGN POINTS TEMP SPAN= CREEP IS. ICE WIND IN PSF -50°4.00 1.00 00 -50 .00 -00 25.60 .00 00 .00 .00 .00 -00 .00 00 -00 .00 .00 00- Qa 00 °1200.0 FEET NOT A FACTOR *DESIGN CONDITION DESIGN POINTS TEMP EF 0. 32. _32. 32. ICE IN -50 1.00 -290 00 -00 -90 -00 -00 -00 -00 -00 WIND PSF 4.00 .00 .200.-- 25.60 -90 90 00 -00 -90 -00 .00 HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT LB -30 2.665 28.17 11877. -00 3.897 32.51 ©15069. -00.2.255 28.67 9876. -00 2.728 29.89 11460. 00°1.235-19.06 6114. -60-1.235 22.59 6851. .00 1.235 23.53 -6579. 00 1.235 25.37 6105. -00 1.235 27.15 5707. -00.1.235 28.34 5470, 00 1.235 29.36 5283 HEAVY LOADING FINAL K WEIGHT SAG TENSION LB/F LB/F FT LB 30 2.665 33.17 |12211. -00 3.897 37.86 15666. 00 2.255 33.66 10183. 00 2.728 35.00 11852, -00 1.235 23.52 7362. 00 1.235 27.23 6883. -00 1.235 28.21 6645. 00 -1.235.30.13 6225. 90.1.235 31.98 5867. 00 1.235 33.21 5652. -00 1.235 34.28 5477. HEAVY LOADING FIN? K WEIGHT SAG INS ION LB/F ssLB/F FT LB 06 1.235 28.40 7850. 00 1.235 32.25 6919, -00 1.235 33.27 6709. 00 1.235 35.26 6334. 00 1.235 37.18 6009. 00 1.235 38.44 3815. INITIAL SAG TENSION FT LB 27.45 12185. 32.51 15069. 27.18 10412. 28.90 11849. 17.46 8857. 20.14 7680.* 20.89 7407. 22.38 6916. 23.86 6489. 25.32 6118. 26.84 5773 INITIAL SAG TENSION ET LB 32.31 12533. 37.86 15666. 31.97 10715. 33.87 12243. 21.48 8715. 24.39 7680.*25.18.7438.26.77 7000. 28.34 6616. 29.87 |6277. 31.48 5960. IN TIAL SAG TENSION 'T LB 25.94 8593. 29.04 7680.* 29.88 7465. 31.55 7073. 33.19 .6726,. 34.80 6417. 36.48 6124. 2.EMF Calculations Nuvista Light &Power,Co.-Donlin Creek Mine Power Supply Alternatives Feasibility Study Draft 9/19/03 Ground level magnetic field strengths,associated with the single pole Structure Type B,were calculated using a simplified form of the equations contained in the article titled,"Accurate Formulae of Power Line Magnetic Fields,”which is attached at the end of this appendix sub-section.Magnetic field strengths,for both the 138 kV transmission circuit and the 13.8 kV underbuild circuit were calculated separately and then added vectorally to obtain the resultant magnetic field.Calculations assume a 150 degree phase- shift between the 138 kV circuit and the 13.8 kV circuit.The results of the calculations,with graphs,are contained in the subsequent pages. Magnetic Field Calculations Sturcture Type B Assume 50 feet to top of pole height >yc}=J3 VT ie kv Phase Conductor 13.8kv underbuild (as required) 45-55 Typical --_--OPGW +Telephone Ground Line u:=.00000126 =-75000__Iq=313.787 |Max current in amps in 138 kv Circuit138-1.732 . , ly =15000 1,=627.573 Maxcurrent in amps in 13.8 kv Circuit13.8-1.732 oO fo \ 25 50 75 distance from centerline in feeta=}100 : a ; 125 150 175 \200J d- 3 ._3Y201 10°4-3.1416-Ry Ba= {52.103\ 42.472 27.321 17.134 11.258 7.813 5.686 4.302 \3.359 | slant distance from 138kv center conductorinmeters slant distance from 13.8 kv center conductor in meters magnetic field strength at ground level in MG from 138 kV circuit 138 kV Magnetic Field Ba MagneticFieldinMGfha 115.808} ;Viuly 88.495 nagnetic field strength at ground level in MGBy=--_-_-_10°51.826 |fom 13.8 kv circuit2. 2-3.1416-Re 30.655 By ={19.502 Underbuild Magnetic Field 15013.287 © 9.562 2 HIZS 37.183 Z .Bu 75 x\558 fF 4 37.5 ---%9 50 100-150 200 Distance from CL in Feet Ba = .866-Bg Ba =-5-Bg Bres :=|(Ba +Ba)”+Bg? f >75.335\Combined magnetic strength of 138 kV and 13.8 kv circuits 55.904 at ground level in MG 31.303 17.988 Combine Effect 138 kV+13.8 kV UB =|11.26 100 oO7.601 2 - ,5.44 3 Bres 4 4.072 37”NCz5L3.156 §25 <=i a0050100150200 sDistancefromCLinfeet Magnetic Field Calculations Sturcture Type B Assume 60 feet to top of pole height Tye ec | -----13.8kv underbulld (as required) 45-55 Typical *T Ground Line u:=.00000126 Iy=TI Ij =313.787.Maxcurrent in amps in 138 kv Circuit 15000 ..-yy =---sp =627.573 =Max current in amps in 13.8 kv Circuit13.8-1.732 fo \ 25 50 75 ss |100 125 150 175 200.) _distance from centerline in feet Re="S28 4s=24-3.1416-Rg Rg =|35.953 (ss?+2° =}34.795 oe Le 19.055\ 20.523 24.402 29.765 42.608 49.543 56.654 \63.884 / '16.768) 18.419 4 22.662 28.355parr 4 41.636 448.709 55.927 463.239 / 36.764\ 31.693 22.417 15.067 10.327 7.353 5.438 4.159 3.271 | slant distance from 138kv center conductor in meters slant distance from 13.8 kv center conductor in meters magnetic field strength at ground level in MG from 138 kV circuit 138 kV Magnetic Ficld Bg MagneticFieldinMG {77.524 Vi-wly,64.249 |magnetic field strength at ground level in MGBy=Saem?10°42.445 |ftom 13.8 kv circuit31ICRy27.111 By =|18.005 Underbuild Magnetic Field s4}5 9.187 4 78 \6969 |3 Be ..\5451)3:%+p- °0 50 100 150 200 Distance from CL in Feet -.866-Ba Ba =5-Ba a(Ba +Bu)'+Ba , . (49.246 Combined magnetic strength of 138 kV and 13.8 ky circuits40.07 at ground level in MG 25.615 15.954 Combine Effect 138 kV +13.8kV UB Bres =|10.429 60> 7.214 2 4s5.239 Zoe |\on won =30 X3.958 3 N3.087 J 2 15 <==eee °Oo 50 100 150 200 "ssDistancefrom CL in feet ACCURATE FORMULAE OF POWER LINE MAGNETIC FIELDS ACCURATE FORMULAE OF POWER LINE MAGNETIC FIELDS G.FILIPPOPOULOS D.TSANAKAS DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING UNIVERSITY OF PATRAS 26500,RION,GREECE Abstract Accurate mathematical formulae of the magnetic field around some commonly used configurations of powerlinesarederived.This is achieved by the use of two copies of the complex numbers set.The one copy,namedC,,is used to represent the vectors in the vertical plane (where the magnetic flux density vector is considered).The other copy,named C;,is used to represent the sinusoidal varying quantitics as phasors.The rotating vectorofthemagneticfluxdensityoccursasacombinationofthetwocomplexnumberseta,belonging to the set of theCartesianproductC;x C;,named double complex manbers.The magnetic flux density vector,as a doublecomplexnumberisdescribedthronghremarkablysimplerelations,making the development of accuratemathemsticalformulaeforitpossible.These formulae express the magnetic flux density vector as a function ofthelinegeometricalperametersandtherelativedistancefromit.Similar formulae for the resultant value of themagneticfield,a commonly used quantity to describe the magnetic field,are also derived.As cxamples accurateformulaeofthemagneticfieldaroundsinglecircuitpowerlinesimflat,vertical and delta configurations andbexagonlinesinvariousconfigurationsarepresented. 1 Introduction The last decades,the magnetic fields produced around power lines are considered as an environmental factor.The calculation of the magnetic field vaines st ground level under a power line is usually made arithmeticallywiththeuseofacomputer[1].However,the arithmetic calculation does not allow an insightatthemagneticfieldpropertiesanditsdependenciesofthevariousparametersofthesctting.For example,the magnetic ficld atgroundleveliscalculatedataspecificdistancefromthelineaxisandconsideringaspecificheightoftheconductorstotheground.This calculation is repeated for various distances in order to get the magnetic fieldprofile.For different conductor heights or if there is a change in the line arrangement,the whole process nmst berepeated.Also the results refer to a specific line and cannot be easily generalized.However,computationalinvestigationsaremadeinordertoreachsomegeneralconclusionsabouttheabilityofsomepowerlineconfigurationstoreducetheproducedmagneticfields.For example,double circuit lines in low reactanceconfigurationandcompactlineswerefoundtoreducethemagneticfieldsin[2,3]. In [4]s0me approximate formulae of the magnetic field were presented.These formulae were beeed on themultipoleexpansionofthemagneticfieldandarepreciseatrelativebigdistancesfromthelineincomparisontothedistmcesbetweenitsconductors.These formulae are very useful in the determination of the way themagneticfielddecaysawayfromapowerline.For example,the fast reduction of the magnetic field away from adoublecircuitLineinlowreactancephasingwasexplained:placing the conductors in such a way that the firsttermsofthemultipoleexpansioniszeroed,the magnetic field far from the line is minimized.However,theseformulaedonotshowthebehaviourofthemagneticfieldundertheline,where there usually is an increasedinterest.In most cases it is important to know the magnetic field maximum valve under the line and where itappears.In this paper accurate mathematical formulae of the magnetic field around some commonly usedconfigurationsofpowerlinesarederived. G.FILIPPOPOULOS D.TSANAKAS In [1,2,3,4]the complex numbers were preserved as phasors to represent the sinusoidal varying quantities.In thispaper,complex numbers are also used to represent the vectors in the traverse plane to the conductors,where themagneticfieldisconsidered.This is possible if a system with two imaginary units is used.In [5]manyimaginaryunitsareused,reaching to systems of hypercomplex numbers.So the innovation of this approach isthesimmltancoususeofcomplexnumberstorepresentplanevectorsandphasors.After this representation themagneticfieldrotatingvectorisrepresentedbyanewsetofnumbers,named double complex numbers,Thesenumbersareacombinationofthecomplexnumbersrepresentingplanevectorswiththecomplexnumbersrepresentingsinusoidalvaryingquantities.The double complex numbers and their basic properties,from amathematicalpointofview,are briefly discussed in the Appendix.. As to denotation bold letters are used for vectors,underlined letters for phasors and bold underlined letters fordoublecomplexnumbers.Also small letters indicate instantancous values and capital letters rms values. 2 Magnetic field calculation using double complex numbers Figure 1 shows the space arrangementoftheconductorsofapowerlineinrelationtothexyzaxessystem.The line route is consideredstraightandperalleltothez-axis.The lineconductorsarenotstraightbuttheyare sagged by their weight.The curve that isdrawnbyeachconductorataspanbetweentwosequentialsuspensionpointsisknownasthecatenarycurve.In order to simplify thecalculationsandtheanalysisofthemagneticfieldproducedbytheline;the model of anassemblyofhorizontalconductorsinz-axisisused.This model is precise in the prediction of the magnetic fields if the conductor sag is small in comparison to thespan.A typical value for high voltage lineconductorsagis10mforaspanof350m.Figure 1.Space arrangement of the conductors of a power line. Figure 2 shows a traverse section of a power line modelled as an assembly of three conductors parallel to z-axis.This section is actually the xy plane,where the conductors are shown as single points.The conductor k is caringthecurrenti,towards the positive z-axis direction.The magnetic flux density b,which is created by the kconductor,is given by the Ampere law: b==r (,xR,):aD o7 Vswherep,=4x1 mm it the magnetic permeability of free space,€,is the unit vector in the direction of z-axis,R,isthe vector distance from the k concuctor to the point of interest P and the symbol x denotes the cross productofthevectors é,andR,. In the general case a line with n conductors may be considered.Equation (2-2)could be simplified if theUsingthesuperpositiontheorem,the magnetic flux density b vector distances on the xy plane wereproducedbythelineisthevectorsumofthefieldsproducedbyrepresentedascomplexnumbers.On theeachconductorseparately:other hand,for ac lines the conductor currents are sinusoidal quantities é,xR,)represented by phasora,which are alsob=yh=ar -@-2Lomplex numbers.Itis clear that havingia'only one set of complex numbers does ACCURATE FORMULAE OF POWER LINE MAGNETIC FIELDS not allow the simultaneous representation of the vectors in the ©xy plane and the current phasors.In order to solve this problemtwocopiesofthecomplexnumberssetareused:1)The set C; of the complex numbers with the imaginary unit i (i?=-1)y Co; and 2)the set C;of the complex numbers with the imaginaryunitjand(j?=-1).It is noted that i #j. ©, Figure 2.Traverse section ofa powerlinemodel. The set C;is used for the representation of vectors on the xy plane.Each vector on the xy plane R =xé,+yé, (@,and @,are the unit vectors on x and y axis)is represented by the complex number R =x +iy.Using this representation,the factor (¢,xR,)/R?2 in (2-2)is writtenas i/R,,where R,is the conjugate complex pumberofR,(R,=x -iy)and the factor i is used to enter a 2/2 rotation instead of the outer product with the unit vector @,. The sct C;is weed for the representation of sinusoidal quantities as phasors.Each simzoidal quantityi,=¥21,coot+@,)is represented by the complex mmber I,=I,e*through the relation i,=V2 Rell,e™").Using these representations,(2-2)gives: b=v2 Re,(Be™) The vector b is represented by B ,which is s double complex number (described in the Appendix).The term Re,is an expansion of the real function,meaning the real part of the double complex number as to the imaginaryunitj:Re,(a +ib +jc +ijd)=a+ib. The double complex number B may be written in the following forma: B=B,+iB,=B,+jB,=B,+iB,+jB,+4B, The phasors B,and B,represent the components ofb on x and y-axis,respectively,at R,which are sinusoidal quantities.The vectors B,and B,are refer to the real and imaginary pert where I,,and 1,,are the real and the imaginary part ofofb,expressed by the relations:the curentI,. The vector b as a function of time (2-3),traces anellipse.Figure 3 shows this ellipse defined by its major 85 G.FILIPPOPOULOS D.TSANAKAS semi-axis B,and its minor semi-axis By.The .factor »/v;is used to convert the maximum ; instant values to tms values.However,a very 4 significant peramcter of the magnetic fhx , density is its resultant value B,which is equal to .the magnitude of the double complex number BL = ONB: .|ya 1 | i 1 3.a Figere 3.The ellipse described by the vector b. B =[Bi =(Bt +B?)F =(6?+B?)?=(B?+B?+B?+B?)aD 3 Multipole expansion of the magnetic flux densityFigure4showsagainthetraversescitionofapowerline,The curents are characterized by their phasors 1I,and the place of the k conductor is characterized by its vector distance d,from a reference point O,whichisacentralpointoftheline.The point O is close to but not necessarily the centre of the conductor arrangement. Y Lo a. iF oO Lo .The vector R defines the distance from the point O to the pointofinterestP.Replacing the distance of the point of interest Pfromtheconductork:R,=R-d,,and using the equation (R-4,)'"sare (validforR>,)a (2-4),it results B,the multipole expansion of the magnetic field fm density: B=)'Ba (34 dei : iu M Figure 4.Traverse section of a power linein.M ...where:Ba =mage}poting the referencepointO. and M,=14,"(3-3) Ske mapa iy tocnan ot of ites R Each tm By of i um Waleed 86 ACCURATE FORMULAE OF POWER LINE MAGNETIC FIELDS term of the magnetic flux density and isexpressedthrough(3-2).The factor «_, is calledthe 4 order momentofthemagneticfluxdensity.Both double complex numbers B,)and M,express© elliptical rotating vectors.The term B,,, may be calculated through the calculationofthemomentM,and the distance from the line R.Figure 5 shows the relationbetweentheellipsetracedbyM,,and the ellipse traced by B,,)at deferent places aroundtheline. The general expressionofthemagneticfluxdensity1ordertermisduetothecapabilitiesofthedoublecomplextoexpresstheellipticalrotatingvectors.Itshouldbenotedthatin[4]only the firstfourtermsofthemagneticfhixdensitymultipoleexpansionwerederived.Alsoin[4]the magnetic field away from the first non-zero term of the multipoleexpansion.: 4 Single circuit lines The magnetic flux density around a single circuit line consisting of three phase conductors (a,b and c)ia derivedfrom(2-4)as L I I8"30 (R-d,*tg,a Making some manipulations,(4-1)is written as: B=ip,+1 +1,)R*-[@,+4),+@,+4),+@,+d,L.R+d,a1 +4,4,1 +4,d,1,="2s R?-(d,+d,+d,)R?+(d,d,+4,d,+d,d,R+d,d,d, Considering the phases abc consist a positive sequence system,their currents are related according to: where a =e'? Replacing these equations in (4-2),it becomes: 87 D.TSANAKAS p=tel_-409d,+00,R400,+074,+04,4, "2 omPRE,+a,+a R?+a,+d.d.+4d.4,R-4.4,4 The resultant value of the magnetic flux density is calculated by (4-3)as B =[Bj patel a,+274,+ad,.R+4,d,'2x [RP -(d,+d,+4_)R?+(4\d,+ Equations (4-4)and (4-5)get moch simpler forms when they refer to specific configurations of lines.Table |gives the expressions for the magnetic flux density vector and its resultant value for the three most commonlyusedconfigurationsofsinglecircuitlines. Table 1.Accurate fornnlse of the magnetic flux density vector B and resultant value B for singie circuit lines Accurate formulae B _ibels W3R--s "pebels(_Rt 4s? 2aR \R' 2R3s7 cos2p+5' parbeleWR-i258(R?+8") _Hels f 3R?+87 z 2aR (R*+2R5"cos2p+5" B =Diteds RU +ii)-sfi+j) le -*-_4a R?+is? "Be 372 p,Is/R?+s? 7 4x (R*-2R's'sin39 +5° )} 5 Hexagon line Figure 6 shows the traverse section of a hexagon line.The conductors of this line are placed on the comers of areguiarhexagon.The advantage of hexagon lines for the magnetic ficld calculation is their symmetry. ACCURATE FORMULAE OF POWER LINE MAGNETIC FIELDS Considering the reference point O at the centre of the hexagon,the vector distances of the corners from O isgivenbysimilarexpressions: 1k se oly(3-1) Figure6Ahexagonline Equation (3-3)gives the 4 order moment.Replacing (5-1)in (3-3)it results: ®"ia-ye-DSM,=8*1¥'Le ; bel This relation results that there is a general recursive relation between the 1+6v and the 1 order moment of themagneticfluxdensity.So,calculating the 6 first moments,the rest are derived: Moa ="Mi, -The recursiveness of the moments results similar relations between the magnetic flix density terms.The 1 ordertermofthemagneticfluxdensityidgivenby(3-2).Equation (3-2)in combination with (5-3)results: B =ip.M,ss(602)22 rR' So all the terms of the multipole expansion of the magnetic flux density in (3-1),may be separated in 6 groups,as shown in the following relation: B =Bow +DB evr)+>Bima +D Bers)+Brows)+DBrens)wet vad v=we wt we Each of the 6 sums appearing as terms in the former equation are calculatedas: >B «it.MR™ee Tr Replacing this in (5-6)it gives: B _it.MR®+M,R'+M,R°+M,R?+M,R+M,=ip,-N -22 R'--s'2a R*-s* 8&9 G.FILIPPOPOULOS D.TSANAKAS :where:N==M,Rr"dwt The resultant value of the magnetic flux density occurs as the magnitude of the above expression p=Be N 2x {R"?-2R's*cos6p +8")3 where the distance s and the angle @ are shown in figure 6. The calculation of the magnetic field flux density vector consists in the calculation of N fromthe6first moments.The calculation of the magnetic ficid fhrx density rms value consists in the calculstion of N =(Nj.The value of N depends on the line configuration.In table 2 three common configurations of s hexagon line are examined.It should be noted that even though the presented method assumes that R>a,these formulae are alsovalidforR<s. 6 Conclusions Accurate formulas of the magnetic field vector and its resultant value for commonly used configurations ofpowerlineshaveboendeveloped.These formulas may be used in the accurate estimation and the analysis of themagneticfieldvaluesaroundtheselines.As an example,for a flat power line,it is possible to calculateforthemagneticfieldprofileatgroundlevel,its maximum value and the exact distance from the line axis where itappears,keeping the distances between the phase conductors and the distance from the conductors to ground asperameters.Also the magnetic ficld levels of different power line configurations can be compared. Double complex numbers proved to be very efficient for the representation of the magnetic field vectors.Theirusesimplifiedtheexpressionsofthemagneticfieldproducedbypowerlinesandallowedthedevelopmentoftheaccurateformulae.Also the magnetic ficld multipole expansion terms were simplified and a general expressionofthe1-osder term was presented.However,it remaina for a future paper to show how the properties of theellipsedescribedbythemagneticfieldvector,such as the major semi-axis,are related to the double complexsumberrepresentingthefieldandhowtheseparameterscanbeextractedfromthissumber. It remains for future work to examine some more complicated cases of power line magnetic fields.A true double more the currents might not be well balanced or some significant harmonics levels may have been introduced. 7 References {1}D.W.Deno,L.E.Zaffanella:"Filed effects of overbead transmission lines aod stations”Chapter 8 ofthe"TransmissionLineRefereaceBook-345kVandAbove",2™ed.Electric Power Research Institute,California 1982. 2]D.Teanakas,G.Filippopoulos,J.Voyatzakis,G.Kouvarakis:Compect and optinmm phase conductorarrangementforthereductionofelectricandmagneticfieldsofoverheadlines,CIGRE Report 36-103,Session 2000. B]G.Filippopouios,D.Tsanakes,G.Kouvarakis:Overhead and underground power line electric andmagneticfieldreductiontechniques,Millennium Intemational Workshop on Biological Effects ofElectromagneticFickds,Crete,Greece,October 2000. (4]W.T.Kaune,L.E.Zaffanella:Analysis of magnetic fickis produced far from electric power lines,,IEEETransactionsonPowerDelivery,Vol.7,No 4,pp.2082 -2091,October 1992. 90 ACCURATE FORMULAE OF POWER LINE MAGNETIC FIELDS -[5}L L.Kantor,A.S.Solodovnikov:"Hypercomplex Numbers -An Elementary Introduction to Algebras”Springer-Verlag 1989,ISBN:0-387-96980-2,ISBN:3-540-96980-2 (Translated from Russian to English language by A.Shenitzer). 91 G.FILIPPOPOULOS D.TSANAKAS Table 2.Accurate formulae of the magnetic flux density vector B and resultant value B for hexagon lines. _3ip,Is (R'+sR?+5°R -ijs* 2x R*-5* .ootne3pIs[R*+57R*+2s'R '(cos 2p -cos4p)+8°R?alB;{o-*anf R?-2R°s*cos6p +8" Bs Sip,Is'R (t-i7)R?+(1+ij)s°-2n R*=g°."Nis"Be 3¥2y,1s"R (Ries }2a ss A R®-2R's*conte +0* poBi Is (+i)40-i)st22Ré-s*.. t.03v2p,Is (R*+s*2Be41366fF :2x LR -2R°s"cos6p +58 aix phase line Appendix:Double Complex Numbers and their properties General The double complex may be used when there is a need to use sinltaneously two sets of complex numbers.Inthiscase,two copies of the complex numbers set is used the set C;with the imaginaryunit i,and the set C;withtheimaginaryunitj(i?=-1,j?=-1 and i #j).The set of double complex numbers D is the Cartesian product of the set C;to the C;(D =C;xC=R*).A double complex number {may be written in the forms: =x,+jr,<6,+16,=a+ib+je+iid (4-1) 92 ACCURATE FORMULAE OF POWER LINE MAGNETIC FIELDS whereZ,=a+ib and Z,=¢+id are complex numbers in the set C,(sa +jc and 0.=b +jd are complex numbersinthesetC;and a,b,c and d are real mimbers (in the set R).Considering a second double complexmamberf'=a'+ib'+jc'+ijd'the productoff with f°occurs as shown im (A-2).Assumingtheusual operations of real numbers apply and replacing i?=-1,j?=-1 wheretheyappear). ff'=en'+inb'+jac'+ijad'+iba'-bb'+ijbe'-jbd'++joa'+jich'-cc'-ied'+ida"-jdb'-ide'+dd' This relation shows that the product of two double complex numbers is also a double complex number.Equation(A-2)is used as a multiplication mie,allowing the axiomatic definition of double complex numbers as a commurtative ring. Axiomatic definition Double complex numbers are ordered quadruplets of real numbers with some operation rules.Considering thequadruplets(a,b,c,d)and (a',b',c',d')where the a,b,c,d,a',b',c'and d°are real numbersthe rules for equality,sddition are component like and the multiplication rule are defined as:- (a,b,c,d)=(a,b',c',d)<>(ama,b=b,c#c'andd=d (a,b,c,d)+(a',b',c',d)=(a+a',b+bic+e4d +d)(A4) (a,b,c,dXa',b',c',d)=. a (an'-bb'-cc'+dd',ab'+ba'-od'-de',ac'-bd”+ca'-db',ad'+be'+cb'+da') Defining 1=(1,0,0,0),i=(0,1,0,0)and j=(0,0,,0),the product ij occurs ij=(0,0,0,1).Based on these equalities,and consideringtheproductofanyreal number r with (,b,¢,d)as r(a,b,c,d)=(ra,1b,rc,rd)any double complex number (a,b,c,d)may be written in the familiar form a+bi+c¢j+dij.The subset of D for c= 0 and d =0,is the set C;.Similarly,the subect of D for b =.0 and d =0 is the set C;.Further more,the subect of Dforb=0,c =0 and d =0 is the set of the real numbers R.The defined operation rules are consistent with theweilknownoperationsinthetwosetsofcomplexandtherealmmmbersC;,C;and R. Based on the rules for addition and multiplication it can be easily derived that the set of double complex numbersisacommutativering(addition is commutative:f,+{,=f,+f,,multiplicationiscommutative:f,f,=1,1f,, addition is associative:f,+(f,+1,)=(f,+f,)+f,,mmultiplication is associative:1,(f,1,)=(£,1,, multiplicationisdistributivewithrespecttoaddition:f,(f,+f£,)=f,f,+1,1,,the zero clement is the real number0:f+0=f and the unitary element is the real number 1:f-1=f,where f,,f,and f,stand for double complex mumbers).That means that the basic operation rules for double complex numbers addition andmultiplicationarethesameaatheknownones(as for real numbers).So there is no need to memorize specialoperationrules.Also,there is no need to remember the omttiplication rule;it is enoughtoreplacei?=-1 andj?=-1 where they appear. Inversion of double complex nembers However,there is a significant difference between the set of double complex numbers and the sets of complexandrealnumbers.Double complex numbers is not a division system i.e.there are some double complex numberswithoutaninverse(called non-invertible numbers).An inverse of a double complex number {is any double complex number f,,for which the following relation is valid {f,=1.It can be proven that if f has an inverse this is a unique double complex number.The cancellation low does not apply for non-invertible 93 G.FILIPPOPOULOS D.TSANAKAS numbers,i.e.if £is a non-invertiblenumber,equation {x =fy may be true and for x #y.This wouldbe impossible if f had an inverse.So the expression 1/f ia not valid,unless it is known that f is invertible(for example if it is a real or a complex number). The magnitude of a double complex number The magnitude {f]of a double complexnumber {expressed in the forms of (A-1)is a real number that occurs accordingtotherelations: i V tN=(el +P?=KI +b,P =G2 +b?+0?4°)?(4-6) This relation is consistent with the definition of the magnitude of complex numbers. A useful relation for the calculation of the product of two double complex numbers f,and f,is the following: I £1 ili | aD However,this relation is valid only if at least one of f,and f,is a real number or a complex number in C;or C; or a product of a complex number in C;with a complex number in C;., 94 3.Transmission Line Alternatives,Pre-Design Cost Estimates by Dryden &LaRue /:D yen é GaRue,Ine. CONSULTING ENGINEERS wetic Bivd.,Suite 201,Anchorage,Alaska 99503-457!Phone:(907)349-6653 ©Fax (907)522-2534.=.Email:office@drydeniarue.com.: July 17,2003 Frank Bettine 229 Whitney Road Anchorage,AK 99511-2265 Reference:Donlin Creek Transmission Lines Pre-Design Cost Estimates We have completed our estimates of construction costs for the transmission line options to serve the Donlin Creek Mine.In our June 10 letter we had estimated the 190 mile-long transmission line from Bethel would cost approximately $140.42 million.This estimate was based on using all steel H-frame structures outside Bethel with driven or grouted pipe-pile foundations. In our last meeting,you asked that the transportation costs not be included in the estimate,and that our driven pile lengths be shorten by about 10 feet to better reflect pile lengths used on other transmission projects.Making these revisions resulted in a cost estimate of $133.14 million for the 138 kV transmission line.The estimated cost of the substations and distribution lines remains unchanged from our June 10 letter.Their combined cost is $13.78 million. We looked at using steel X-towers with H-pile foundations and anchors in the lowland area between Bethel and Kalskag.Using the same assumptions as the above estimate,i.e. no transportation costs and reduced pile lengths,resulted in this estimate being $136.61 million.Our conclusion from this is that two H-pile foundations,two H-pile anchors,four guys and a X-tower cannot beat the cost of two pipe piles and a H-frame. We estimate $12.74 million can be saved if the structures between Kalskag and Donlin Creek are direct buried instead of supported on pile foundations.The project estimate for the all H-frame option thus becomes $120.40 million. As an alternative to serving the mine from Bethel,we estimated the cost to build a D/C line from Nenana to Donlin Creek.We have some serious concerns about the logistics of 'building this line due to access,weather,environmental restraints,etc.We believe the most likely scenario for building this line is via ice roads constructed from both Nenana Bettine &Associates July 17,2003 Donlin Creek Transmission Lines Page 2 and Donlin Creek over several (we've estimated four)winters.Finding adequate water sources along the route for the ice roads could be problematic.Setting up and operating work camps along the route will also create some challenges.Our estimate is based on all these logistic concerns being resolved favorably. After re-evaluating the conductor size,we concluded that it should be of similar size as the 138 kV A/C options.Therefore our D/C estimate assumes the same fiber optic and conductor size (Cardinal)as the A/C options.Structure type for the D/C option is assumed to be single shaft steel poles with either suspension insulators hanging fromdavitarmsorhorizontal-Vee insulator assemblies.Loading criteria,average span lengths, percentage of angle and dead endstructures,and clearing requirements are assumed to be similar to the A/C options.We assumed two thirds of the foundations would be on driven piles and the other one third would be direct buried. Our estimate to construct the 385 mile-long D/C line from Nenana to Donlin Creek is $246.5 million,or approximately $640,200 per mile.This estimate includes about $44 million for ice road construction and transporting materials along the ice roads.We have not included any costs for A/C to D/C conversions at either end of the line. We've assumed at least half of the materials for the D/C line would be delivered to Nenana and the remaining would be barged to Crooked Creek.Like the A/C options,the barge costs are not included in our estimates.We estimate approximately 1,000 tons of materials will need to be barged to Crooked Creek for the D/C option.For the A/Coptions,approximately 1,200 tons of materials will be needed for the portion betweenBethelandDonlinCreek. As with our previous estimates,our costs include a 15%planning-type contingency.They do not include environmental studies,permitting,land acquisition,surveying, engineering,or construction management costs.We have enclosed back up for our cost estimates. If you have any questions,do not hesitate to call. Dryden &LaRue,Inc.My \al f, GDHideg/frankletter?-17-03.doc BETHEL -DONLIN CREEK 138 KV TRANSMISSION LINE ' _.PRE-DESIGN CONSTRUCTION COST ESTIMATE PTION A:ALL STEEL H-FRAMES OUTSIDE BETHEL,PILE FOUNDATIONS,NO BARGE COSTS Unit Price Approx.ExtendedUnitNo.of Units Description Labor Materials Labor &Materials Extended Price We Wt. Clearing Lt.Clear 85 mi.Light Clearing $8,000 $0 $8,000 $680,000 Md.Clear 38 mi.Medium Clearing $20,000 $0 $20,000 $760,000 Hvy.Clear 67 mi.Heavy Clearing $30,000 $0 *$30,000 $1,995,000 Driven Piles,Lowlands 10-3x40 215 Pile anchor,10°dia.x 40'long $7,500 $618 $8,118 $1,745,370 1545 332175 18-5x40 357 Pipe foundation,18°dia.x 40°$9,500 $1,860 $11,360 $4,055,520 4650 1660050 20-5x40 357 Pipe foundation,20°dia.x 40'$10,500 $2,072 $12,572 $4,488,204 5180 1849260 22-5x40 133 Pipe foundation,22*dia.x 40°$11,600 $2,288 $13,888 $1,847,104 5720 760760 24-5x40 46 Pipe foundation,24"dia.x 40°$12,100 $2,500 $14,600 $671,600 6250 287500 Foundations,Non-Lowlands (pre-drill and drive or auger and grout) 18-5x20 496 Pipe foundation,18°dia.x 20°$13,000 $928 $13,928 $6,908,288 2320 1150720 20-5x20 496 Pipe foundation,20°dia.x 20'$14,500 $1,036 $15,536 $7,705,856 2530 1284640 22-5x20 186 Pipe foundation,22°dia.x 20'$16,200 $1,144 $17,344 $3,225,984 2860 531960 24-5x20 62 Pipe foundation,24°dia.x 20'$18,000 $1,248 $19,248 $1,193,376 3120 193440 Anchors.Non-Lowlands Anch 237 Plate or screw anchor,x-country $1,500 $200 .$1,700 $402,900 100 23700 237 grouted anchor,x-country $3,000 $400 $3,400 $805,800 500 118500 100 Plate or screw anchor,in-town $1,000 $200 $1,200 $120,000 Steel H-frames 106 50'I-string $16,000 $8,400 $24,400 $2,586,400 5600 593600 178 60 I-string .$17,000 $10,050 $27,050 $4,814,900 6700 1192600 284 70'-string $18,000 $12,000 $30,000 $8,520,000 8000 2272000 - 106 _80 f-string ,$19,000 $14,250 $33,250 $3,524,500 $500 1007000 38 $0 I-string $21,000 $17,100 $38,100 $1,447,800 11400 433200 34 50'V-string $16,200 $9,000 $25,200 $856,800 6000 204000 57 60'V-string $17,200 $10,650 *$27,850 $1,587,450 7100 404700 92 70'V-string $18,200 $12,600 $30,800 $2,833,600 8400 772800 34 80'V-string $19,200 $14,850 $34,050 $1,157,700 9900 336600 13 90'V-string $21,200 $17,700 $38,900 $505,700 11800 183400 3-Pole Steef Structures (Guyed): 12 50°$14,500 $10,050 $24,550 $294,600 6700 80400 20 60°$15,500 $12,600 $28,100 .$562,000 8400 168000 .37 70 $16,500 $15,450 $31,950 $1,182,150 10300 381100 12 80°$17,500 $18,900 $36,400 $436,800 .2600 151200 -2 90'$19,500 $22,200 $41,700 $83,400 14800 29600 Single Stee!Poles w/o underbuild (direct embed) 52 75°tangent (61'AG)$25,000 $4,500 $29,500 $1,534,000 3000 §80'dead end (guyed,70°AG)$22,000 $4,500 $26,500 $132,500 3000 Single Stee!Poles w/und ttd (direct embe 36 60'tangent (47°AG)$24,000 $3,300 $27,300 $982,800 2200 7 70'dead end (guyed,60"AG)$22,000 $3,900 $25,900 .$181,300 2600 Pole top assemblies 642 (3)138 kV I-string $2,600 $680 $3,280 $2,105,760 400 256800 230 (3)138 kV V-string $4,000 $1,550 $5,550 $1,276,500 soo 184000 95 (3)138 kV running angie $2,600 $750 $3,350 $318,250 400 38000 70.(6)138 kV dead end $22,000 $2,500 $24,500 $1,715,000 850 §9500 §2 (3)138 kV horizontal Vee $2,800 $1,800 $4,600 $239,200 36 (3)138 kV posts $1,800 $1,500 $3,300 $118,800 36 12.5 kV tangent arm $1,000 $400 $1,400 $50,400 14 12.5 kV dead end arm $1,800 $800 $2,800 $36,400 7/28/2003 Dryden LaRue,Inc.lof2 Unit No.of Units Miscellaneous 215 1125 191 OPGW assemblies 1027 98 8&3 124 739 Wire accessories 4100 250 2000 89.2 2928.8 1006 41.5 _7/2912003 Description Pile covers Structure signs (danger and #) Aerial patrol signs tangent or running angle dead end Splice insulated guy (in-town) un-insulated guy dampers aerial balls bird flight diverters 1000'Cardinal,short span 1000°Cardinal,long span 1000'OPGW (48 singlemade) 1000'336 ACSR Unit PriceLaborMaterialsLabor&Materials Extended Price $50 $30 $150 $40 $150 $40 $500 $30 $1,500 $100 $4,000 =$1,200 $500 $150 $800 $100 $150 $45 $1,500 $650 $300 $6 $5,000 $1,400 $6,500 $1,400 $5,000 $1,500 $3,500 $750 Mobilization,staging,work carps,etc. Planning-level contingency. Dryden LaRue,Ing. $80 $190 $190 $580 $1,600 $5,200 $650 $3900 $195 $2,150 $306 $6,400 $7,900 $6,500 $4,250 Subtotal:$110,259,487 5% 15% Total: Average cost per mile: $17,200 $213,750 $36,290 $595,660 $156,800 $431,600 $80,600 $665,100 $799,500 $537,500 $612,000 $570,880 $23,137,520 $6,539,000 $176,375 $5,512,974 $17,365,869 $133,138,331 $698,889 X1.1= 2o0f2 BETHEL -DONLIN CREEK 138 KV TRANSMISSION LINE -PRE-DESIGN CONSTRUCTION COST ESTIMATEOPTIONB:ALL STEEL X-TOWERS &H-FRAMES OUTSIDE BETHEL,PILE FOUNDATIONS,NO BARGE COSTS Unit No.of Units Clearing Lt.Clear 85 mi. Md.Clear 38 mi. Hvy.Clear 67 mi. Driven Piles,Lowlands HP8&x40 1019 HP10x40 712 HP 12x40 181 Foundations,Non-Lowlands (pre-drill and drive or auger and grout) 18-5x20 496 20-5x20 496 22-5x20 18624-5x20 62 Anchors.Non-Lowlands Anch 237 Plate or screw anchor,x-country 237 grouted anchor,x-country 100 Plate or screw anchor,in-town Steel X-towers 52 50'I-string 88 60'I-string 140 70'I-string 52 80'I-string 20 90'I-string 9 50°V-string 15 60°V-string 24 70'V-string 9 80'V-string 3...90°V-string 412 Steel H-frames 51 50°I-string 85 60°I-string 136 70'I-string 51 80'I-string 17 90°I-string 28 50'V-string 47 60'V-string 76 70°V-string 28 80'V-string 11 90'V-string 3-Pole Steel Structures (Guyed) 12 50° 20 60' 37 70 12 80° 2 eg Description Light Clearing Medium Clearing Heavy Clearing H-Pile anchor,8°wide.x 40'long H-Pile fdn.,10°wide.x 40'long H-Pile fdn.,12°wide.x 40°long Pipe foundation,18°dia.x 20° Pipe foundation,20°dia.x 20° Pipe foundation,22°dia.x 20° Pipe foundation,24°dia.x 20' Single Steel Poles w/o underbuilld (direct embed) 52 5 75'tangent (61'AG) 80'dead end (guyed,70°AG) Single Stee!Poles w/underbuild (direct embed) 7/28/2003 \abor $8,000 $20,000 $30,000 $5,500 $6,200 $6,500 $13,000 $14,500 $16,200 $18,000 $1,500 $3,000 $1,000 $17,500 $18,500 $19,500 $20,500 $22,500 $17,700 $18,700 $19,700 $20,700 $22,700 $16,000 $17,000 $18,000 $19,000 $21,000 .$16,200 $17,200 $18,200 $19,200 $21,200 $14,500 $15,500 $16,500 $17,500 $19,500 $25,000 $22,000 Dryden LaRue,Inc. Unit PriceMaterialsLabor&Materials Extended Price $0 $0 $0 $576 $672 $848 $928 $1,036 $1,144 $1,248 $200 $400 $200 $11,250 $12,750 $13,875 $15,375 $16,875 $11,850 $13,350 $14,475 $15,975 $17,475 $8,400 $10,050 $12,000 $14,250 $17,100 $9,000 $10,650 $12,600 $14,850 $17,700 $10,050 $12,600 $15,450 $18,900 $22,200 $4,500 $4,500 $8,000$20,000 $30,000 $6,076 $6,872 $7,348 $13,928 $15,536 $17,344 $19,248 $1,700 $3,400 $1,200 $28,750 $31,250 $33,375 $35,875 $39,375 $29,550 $32,050 $34,175 $36,675 $40,175 $24,400 $27,050 $30,000 $33,250 $38,100 $25,200 '$27,850 $30,800 $34,050 $38,900 $24,550 $28,100 $31,950 $36,400 $41,700 $29,500 $26,500 $680,000 $760,000 *$1,995,000 $6,191,444 $4,892,864 $1,329,988 $6,908,288 $7,705,856 $3,225,984 $1,193,376 $402,900 $805,800 $120,000 $1,495,000 $2,750,000 $4,672,500 $1,865,500 $787,500 $265,950 $480,750 $820,200 $330,075 $120,525 $1,244,400 $2,299,250 $4,080,000 $1,695,750 $647,700 $705,600 $1,308,950 $2,340,800 $953,400 $427,900 $294,600 $562,000 -$1,182,150 Approx. Wt Extended Wt, 1487360 1196160 383720 1150720 1284640 §31960 193440 118500 1of2 Unit No.of Units 36 7 ole top assemblies Miscellaneous ie) 1125 191 OPGW assemblies 1027 98 83 124 1648 707 Wire accessories 4100 250 7/29/2003 Description 60'tangent (47°AG) 70'dead end (guyed,60°AG) (3)138 kV I-string (3)138 kV V-string (3)138 kV running angle (8)138 kV dead end (3)138 kV horizontal Vee (3)138 kV posts 12.5 kV tangent arm 12.5 kV dead end arm Pile covers Structure signs (danger and #) Aerial patrol!signs tangent or running angle dead end splice insulated guy (in-town) un-insulated guy,shear release un-insulated guy,all other dampers aerial balls bird flight diverters 1000'Cardinal,short span 1000'Cardinal,long span 1000'OPGW (48 singlemode) 1000°336 ACSR Unit Price Materials Labor &Materials Extended PriceLabor $24,000 $3,300 $22,000 $3,900 $2,600 $680 $4,000 $1,550 $2,600 $750 $22,000 $2,500 $2,800 $1,800 $1,800 $1,500 $1,000 $400 $1,800 $800 $50 $30 $150 $40 $150 $40 $500 $80 $1,500 $100 $4,000 $1,200 $500 $150$900 $200$800 $100 $180 $45 $1,500 $650 $300 $6 $5,000 $1,400 $6,500 $1,400 $5,000 $1,500 $3500 $750 Mobilization,staging,work camps,etc. Planning-evel contingency: Average cost per mile: Dryden LaRue,Inc. $27,300 $25,900 $3,280 $5,550 $3,350 $24,500 $4,600 $3,300 $1,400 $2,600 $80 $190 $190 $580 $1,600 $5,200 $650 $1,100 $900 "$195 $2,150 $306 $6,400 $7,900 $6,500 $4,250 $982,800 $181,300 $2,105,760 $1,387,500 $251,250 $1,715,000 «$239,200 $118,800 $50,400 $36,400 $0 $213,750 $36,290 $595,660 $156,800 $431,600 $80,600 $1,812,800 $636,300 $799,500 '$537,500 $612,000 $570,880 $23,137,520 $6,539,000 $176,375 Subtotal:$113,133,685 5% 15% $5,656,684 $17,818,555 Total:$136,608,925 $717,107 Approx. wt 2200 2600 400 800 400 850 xUF= Extended Wt. 20f2 BETHEL -DONLIN CREEK 138 KV TRANSMISSION LINE PRE-DESIGN CONSTRUCTION COST ESTIMATE _ IPTION C:ALL STEEL H-FRAMES OUTSIDE BETHEL,DIRECT BURIED &PILE FOUNDATIONS,NO BARGE COSTS Unit Price Approx.ExtendedUnit---No.of Units Description Laber Materels Labor &Materials Extended Price Wt WtClearing Lt.Clear 85 mi.Light Clearing $8,000 $o $8,000 $680,000 Md.Clear 38 mi.Medium Clearing $20,000 $0 $20,000 $760,000 Hvy.Clear 67 mi.Heavy Clearing $30,000 $0 $30,000 *$1,995,000 Driven Pile ;,Lowlands 10-3x40 215 Pile anchor,10°dia.x 40'long $7,500 $618 $8,118 $1,745,370 1845 332175 18-5x40 357 Pipe foundation,18"dia.x 40°$9,500 $1,860 $11,360 $4,055,520 4650 1660050 20-5x40 357 Pipe foundation,20°dia.x 40°$10,500 $2,072 $12,572 $4,488,204 5180 1849260 22-5x40 133 Pipe foundation,22”dia.x 40°$11,600 $2,288 $13,888 $1,847,104 5720 760760 24-5x40 46 Pipe foundation,24°dia.x 40°$12,100 $2,500 $14,600 $671,600 6250 287500 Anchors.Non-Lowlands Anch 237 Plate or screw anchor,x-country $1,500 $200 $1,700 $402,900 100 23700 237 grouted anchor,x-country $3,000 $400 $3,400 $805,800 500 118500 100 Plate or screw anchor,in-town $1,000 $200 $1,200 $120,000 Steel H-frames on Piles 55 50'I-string $16,000 $8,400 $24,400 $1,342,000 5600 308000 93 60'[-string $17,000 $10,050 $27,050 $2,515,650 6700 623100 148 70'I-string $18,000 $12,000 $30,000 $4,440,000 8000 1184000 55 80'I-string $19,000 $14,250 $33,250 $1,828,750 9500 522500 21 90'|-string $21,000 $17,100 $38,100 $800,100 -11400 239400 6.50'V-string $16,200 $9,000 $25,200 $151,200 6000 36000 10 60'V-string $17,200 $10,650 $27,850 $278,500 7100 71000 16 7?V-string $18,200 $12,600 $30,800 $492,800 8400 134400 6 80'V-string $19,200 $14,850 $34,050 $204,300 9900 59400 2 90'V-string $21,200 $17,700 $38,900 $77,800 11800 23600 ole Steel Structures (Guyed)on Piles 3 50°$14,500 $10,050 $24,550 $73,650 6700 20100 §60°$15,500 $12,600 $28,100 $140,500 8400 42000 10 70°$16,500 $15,450 $31,950 $319,500 10300 103000 3 80°$17,500 $18,900 $36,400 $109,200 12600 37800 2 90°$19,500 $22,200 $41,700 $83,400 14800 29600 Steel H-frames,Direct-Embed ' §1 50'I-string $26,000 $10,500 $36,500 $1,861,500 7000 357000 85 60'I-string $27,500 $12,600 $40,100 $3,408,500 8400 714000 136 70'I-string $29,000 $15,000 $44,000 $5,984,000 10000 1360000 51 80'I-string $30,500 $17,850 $48,350 $2,465,850 11900 606900 17 90'I-string $33,000 $21,375 $54,375 $924,375 14250 242250 28 50'V-string $26,200 $11,100 $37,300 $1,044,400 7400 207200 47 60'V-string $27,700 $13,200 $40,900 $1,922,300 8800 413600 76 70°V-string $29,200 $15,600 $44,800 $3,404,800 10400 790400 28 80'V-string $30,700 $18,450 $49,150 $1,376,200 12300 344400 11 90°V-string $33,200 $21,975 $55,175 $606,925 14650 161150 3-Pole Steel Structures (Guyed),Direct-Embed .9 50°$29,500 $12,600 $42,100 $378,900 8400 75600 15 60°$31,250 $15,750 $47,000 $705,000 10500 157500 27 70 $33,000 $19,350 $52,350 $1,413,450 12900 348300 9 80 $34,750 $23,625 $58,375 $525,375 15750 141750 (e)30 $37,500 $27,750 $65,250 $o 18500 0 Stngie Steel Poles w/o underbylid (direct embed §2 75'tangent (61'AG)$25,000 $4,500 $29,500 $1,534,000 3000 5 80'dead end (guyed,70°AG)$22,000 $4,500 $26,500 $132,500 3000 Single Steet Poles w/underbulld (direct embed) 36 60'tangent (47°AG)$24,000 §3,300 $27,300 $982,800 2200 7/29/2003 Dryden LaRue,Ine.1 of 2 Unit No_of Units 7 20le top assemblies 642 230 95 70 52 368 36 14 Miscellaneous 215 1125 191 OPGW assemblies 1027 98 Wire accessories 4100 250 2000 89.2 2928.8 1006 41.5 7/22/2003 Description 70'dead end (guyed,60'AG) (3)138 kV [-string (3)138 kV V-string (3)138 kV running angle (6)138 kV dead end (3)138 kV horizontal Vee (3)138 kV posts 12.5 kV tangent arm 12.5 kV dead end arm Pile covers Structure signs (danger and #) Aerial patrol signs tangent or running angle dead end Splice Insulated guy (in-town) un-insulated guy dampers aerial balls bird flight diverters 1000'Cardinal,short span 1000°Cardinal,long span 1000'OPGW (48 singlemode) 1000'336 ACSR Mobilization,staging,work camps,etc. Planning-level contingency: Unit Price Materials Labor &Materials Extended Price $25,900 Labor $22,000 $3,900 $2,600 $680$4,000 $1,550$2,600 $750 $22,000 $2,500 $2,800 $1,800 $1,800 $1,500 $1,000 $400 $1,800 $800 $50 $30 $150 $40 $150 $40 $500 $80 $1,500 $100 $4,000 $1,200 $500 $150 $800 $100 $150 $45 $1,500 $650 $300 $6 $5,000 $1,400$6,500 $1,400$5,000 $1,500$3,500 $750 Dryden LaRue,Inc. $3,280 $5,550 $3,350 $24,500 $4,600 $3,300 $1,400 $2,600 $80 $190 $190 $580 $1,600 $5,200 $650 $900 $195 $2,150 $306 $6,400 $7,900 $6,500 $4,250 $181,300 $2,105,760 $1,276,500 $318,250 $1,715,000 $239,200 $118,800 $50,400 $36,400 $17,200 $213,750 $38,290 $595,660 $156,800 $431,600 $80,600 $665,100 $799,500 $537,500 $612,000 $570,880 $23,137,520 $6,539,000 $176,375 Subtotal:$99,711,108 5% 15% Total: Average cost per mile: $4,985,555 $15,704,500 $120,401,163 $632,027 S88ong8xt.# Extended 59500 9,835 tons. 10,819 tons 202 NENANA -DONLIN CREEK D/C TRanoMISSION LINE PRE-DESIGN CONSTRUCTION COST ESTIMATE Line length =385.0 miles Avg.span length =800 fl. Average hourly labor rate =$120 includes overhead,profit,etc.Material haul time,one-way =6.0 hrs Average hours per day =8 Cold weather factor =1.4 Equipment Labor and Extended ExtendedMernfcrewCrewHourgAateEquipmentteriaQuantity[sbor &Eq,Materials 65'4 6 80 $4,704 $5,700 170 $799,680 $969,000 65°4 7.6 80 $5,880 $6,000 678 $3,986,640 $4,068,000 75°4 8.5 80 36,664 $7,350 678 $4,518,102 $4,683,300 85 4 9.6 80 $7,448 $8,400 170 $1,266,160 $1,428,000 Pole-Pile Joint 3 6 80 $3,696 $100 1698 $8,268,416 $169,600 PILING,24°dla.x 45°3 16 200 $12,544 $2,800 j271 $15,843,424 $3,658,800 PILING,26”dia.x 45°3 7 200 $13,328 $3,050 425 =$5,664,400 =$1,296,250 POLES,DIRE ED 7a '17 60 $13,328 $7,050 83 $1,108,224 $585,150 80°4 20 80 $15,680 $7,650 338 $5,289,640 $2,585,70090°A 22.5 60 $17,640 °$8,850 338 $5,062,320 $2,991,300 100 a:24 60 $18,816 $10,600 -8&8 $1,618,176 $903,000 ERAMING Tangent,|-string 4 26 80 $1,060 $550 1271 $2,491,160 $699,050 Horizontal Vee (excess of arms)4 25 60 $1,960 $9800 635 $1,244,600 $508,000 Running Angie 4 2.5 80 $1,060 $600 381 $746,760 $228,600 Dead End 6 14 80 $15,680 $1,900 127 $1,891,380 $241,300 Dead End with 1 Jumper Posis 6 14.5 80 $16,240 $2,300 127 $2,062,480 $292,100Total:2541 ea. OPGW ASSEMBLIEStangentorrunningangle 4 0.75 80 $588 $80 22490a.$1,322,412 $179,820 Gead end 4 2 80 $1,666 $100 202 ea.$457,658 $20,200 OPGW splices 3 65 80 $4,004 $1,200 128 ea.$512,512 $163,600 guys 3 1.5 60 $924 $100 2171 $2,008,004 $217,100anchors,plate 3 25 80 $1,540 $200 723 $1,113,420 $144,600_pile anchor,10”dia.x 40°3 10 200 $7,840 §800 774 $6,068,160 $619,200 pile anchor,16°dla.x 40'3 i 200 $8,624 $1,350 337 $2,806,288 $454,050Totat MISCELLANEOUS Pile covers 2 0.25 20 $01 $30 1411 $101,101 $33,330 Structure signs (danger &#)2 0.25 20 391 $40 2541 @a.6231,231 $101,640 Aerial patrol signs 2 0.25 20 $61 $40 388 ea.$35,126 $15,440 WIRE ACCESSORIESDampers 3 0.25 80 $154 $45 7623 $1,173,942 $343,035Aerialballs328°80 $1,640 $850 500 $770,000 $325,000 Bird Flight Diverters 3 0.6 $308 $6 4000 $1,232,000 $24,000 7/29/2003 Page { Extended $1,768,680 $8,054,640 $9,501,482 $2,694,160 $6,438,016 $19,502,224 $6,960,650 $1,691,374 $7,885,640 $8,853,620 $2,521,176 $3,190,210 $1,752,600 $975,360 $2,232,660 $2,354,580 $1,502,332 $487,056 $866,112 $2,223,104 $1,258,020 $6,687,360 $3,361,238 $134,431 $332,871 $50,566 $1,516,077 $1,085,000 $1,256,000 Extended Material Extended Mat'l&Labor Man Hours 6712 28476 32273 0044 42739 65411 30345 Trips 0.25 0.33 0.33 0.33 0.1 02 0.2 0.33 0.02 Trips Approx. Wt 3800 4000 4900 5600 7030 7630 4700 6100 5900 7000 360 300 300 600 700 40 53 200 5) Extended Wt, 646000 2712000 9322200 952000 0 8935130 3242750 0 390100 1723800 1994200 602000 0 381300 #90500 89960 14600 25600 0 108550 72300 1671220 1145470 i) 0 41110 5082 1930 0 0 114345 25000 20000 0 Cardinal conductor,1000° OPGW (48 singlemoda),1000' CLEARING CE ROADS mandays = TR203 6 6 Totat: 5.5 45 24 68 Equipment Labor and Men/crew CrewHours Rate 120 120 Extended Extended Extended Equipment Materjais Quantity Labor &Eq,Materials Extendod Matertal Extended Mat'l&Labor Man Hours Approx,Exteridad $6,468 $1,400 4066 $26,296,301 $5,691,840 $31,988,141 $5,292 $1,500 2033 $10,757,578 $3,049,200 $13,806,778 $18,618 385.0 miles $7,244,160 w $7,244,160 $30,464 1000 miles $30,464,000 -$30,464,000 TOTAL:$153,661,622 $36,889,205 $190,551,127 material transport =$7,815,965 work camp =$7,710,700Moblillzation/demobilizatioin=$8,243,112Planning-level contingency =$53,580,226 TOTAL:$267,901,130 Average cost/mile =$695,847 Page 2 187831 76840 51744 190400 316852 4% 25% Trips Tilps Wa Wr 0 0.1 406.56 1350 5488560 0.1 203.28 600 1219680 2328 17627 tons x1.1=19390 tons 50%to Crooked Creek =9695 tons Dryden t LaRue,Inc. CONSULTING ENGINEERS October 7,2003 Frank Bettine 1120 E Huffman Rd.Pmb 343 Anchorage,AK 99516 Reference:Donlin Creek Transmission Lines Pre-Design Cost Estimate for 230 kV A.C.Option We have estimated the cost to construct a 230 kV A.C.line from Nenana to Donlin Mine. Our estimate is based on using steel H-frame structures.Like our D.C.estimate,two thirds of the structures are assumed to be on pile foundations and the remaining structures are assumed to be direct embedded.We have also assumed the same route,conductor type,OPGW type,construction methods,and contingencies as were used on our D.C. estimate. Our estimate for the 385 mile-long,230 kV A.C.line is $340.9 million,or approximately $885,500 per mile. The tonnage required to be barged to Crooked Creek for the 230 kV D.C.option is about 14,500 tons. Attached is our estimate for the 230 kV D.C.option.If you have any questions,do not hesitate to call., Dryden &LaRue,Inc. \.OljaGregD.Hoffman,P.E. GDH:sc/clients/bet/betdnln/frank1 0-7-03.doc NENANA -DONLIN CREEK 230 kV A/C '1 HANSMISSION LINE PRE-DESIGN CONSTRUCTION COST ESTIMATE Line length =385.0 milesAvg.span length=950 ft.Average hourly labor rate=$120Averagehoursperday=8Coldweatherfactor=1.4 includes overhead,profit,etc.Materia!haul time,one-way =6.0 hrs Equipment Labor and Extended Extended Extended Extended Material Extended Approx,Men/crew CrewHours Rate Equipment Materials Quantity Labor &Eg,Materials Mat&Labor MenHours Trips Trips wt, 0/7/2003 Page1 STEELH-FRAMESONPILES60 4 12 80 $9,406 $10,650 14 $1,345,344 $1,522,950 $2,868,204 9610 0.26 35.75 7100 7 4 15 60 $11,760 $12,600 §71 $6,714,960 $7,194,600 $13,909,560 47964 0.33 188.43 8400 tg 4 17 60 $13,328 $14,850 §71 $7,610,288 $8,479,350 $16,069,638 54359 0.33 188.43 9900tg41980Ct$14,696 $17,700 143 $2,130,128 $2,531,100 $4,661,228 15215 os 47.19 11800 Pole-Plle Joint 3 4 80 $2,464 $100 2656 $7,037,184 $285,600 $7,322,784 47961 Of 285.6 ' PILING,20°dia.x 45°3 12 200 $9,408 $2,300 2142 .$20,181,996 $4,026,600 $25,078,596 107957 02 428.4 5630 PILING,24°dia.x 45°3 14 200 $10,976 $2,800 714 '$7,696,664 $1,909,200 $9,896,064 41983 04 142.8 7030STEELH-FRAMES,D.EMBED75 4 K 1)80 $23,520 $13,200 70 $1,646,400 $924,000 $2,570,400.11760 0.33 23.1 88008543380$25,872 $15,600 284 $7,347,648 $4,430,400 $11,778,048 52483 0.33 93.72 104009543%80 $28,224 $18,450 204 $8,015,616 $5,239,800 $13,255,416 57254 0.33 93.72 1230010543880$90,576 $21,975 74 $2,262,624 $1,626,150 $3,688,774 16162 0.5 37 14650FRAMINGTangent,(3)V-strings 4 4 80 $3,196 $1,800 1605 $5,033,280 $2,889,000 $7,022,280 35052 01 160.5 500 Running Angie 4 3.5 60 $2,744 $1,100 321 _$880,824 $353,100 $1,233,924 6292 0.05 16.05 460 Dead End 6 18 60 $20,160 $3,300 107 $2,157,120 $353,100 $2,510,220 16178 0.1 10.7 800DeadEndwithJumperPosts61980$21,280 $4,600 107 $2,276,960 $513,600 $2,790,560 17077 0.1 10.7 1100Total:2140 ea tangent or running angle 4 0.75 80.$588 $80 1888 oa,$1,110,144 $151,040 $1,261,184 7030 0 40 dead end 4 2 80 $1,568 $100 252 ea.$305,136 $25,200 $420,396 2622 0 50 OPGW splices 3 85 $9 $4,004 $1,200 128 ea $512,512 $153,600 $666,112 3494 0.06 6.4 guys 3 1.5 80 $924 $110 2430 $2,245,320 $267,300 $2,512,620 15309 0.02 48.6 &%anchors,plate 3 25 60 $1,540 §200 666 $1,025,640 $133,200 $1,158,640 6993 0.02 13.32 pile anchor,10°dia.x 40'3 10 200 $7,840 $800 1341 $10,513,440 $1,072,800 $11,586,240 56322 0.1 134.1 2 Total: Pile covers 0.25 20.$ot $30 1341 $122,031 $40,290 $162,261 939 0.01 13.41 10Structuresigns(danger &#)0.25 20 $91 $40 2140 ea $194,740 $85,600 $260,340 1496 .0 2 Aerial patrol signs 0.25 20 $91 $40 386 ea $35,126 $15,440 $50,566 270 0 5 WIRE ACCESSORIES .. Dampers 0.25 80 $154 $45 6560 $1,318,240 $385,200 $1,703,440 8068 0 15 Aerial bails 25 80 $1,540 $650 500 $770,000 $325,000 $1,095,000 5250 0.02 10 §0 Bird Flight Diverters 0.5 &$306 $6 4000 $1,232,000 $24,000 $1,256,000 8400 0 5 WIRE Cardinal conductor,1000' OPGW (48 singlemoda),1000" CLEARING ICE ROADS mandays = 10/7/2003 Mer/crewCrewHours Total: 18014 5 45 Equipment Labor and Extended Extended Extended Rate 120 120 Equipment Materiaig Quantity Labor &Eq.Materials Mat')&Labor $5,860 $1,400 6098 $35,858,582 $8,537,760 $44,396,352$5,292 $1,500 2033 $10,757,578 $3,049,200 $13,806,778 $22,736 385.0 miles $8,753,360 $0 $8,753,360 $30,464 000 miles $30,464,000 :$30,484,000TOTAL;$187,755,035 $57,534,120 $245,289,155 material transport =$9,411,494 work camp =$8,601,400 Mobilization/demobilizatioin =$9,222,572 Planning-level contingency =$68,181,155 TOTAL:$340,905,776 Average cost/mile =$885,470 Page2 Extended Material Extended Man Hours 256133 76840 62624 25% Trips mex,Extended Trips Wh Wt. 0 609.84 1350 8232840 203.28 600 1219680 2801 26313 tons ¥14,4s ©26944 tons 50%to CrookedCreek=14472 tons DONLIN CREEK °SUBSTATION CONSTRUCTION COST ESTIMATE June 6,2003 5%Misc covers freight (material estimates are FOB Seattle),mob/demob,camp costs,etc VILLAGE STEP DOWN SUBSTATION 138 KV/12.47-7.2 KV 138 KV Circuit Switcher wi Disconnect 7 $64,000 $3,200 $470,400 $70,560 $540,960 138/13.8 kV Transformer 500KVA 6 $130,000 $6,500 $819,000 $122,850 $941,850 1000 kVA +$135,000 $6,750 $141,750 $21,263 $163,013 15 kV Recioser w/Controller 7 $20,000 $1,000 $147,000 $22,050 $169,050 18 kV Motor Operater Disconnect Switch 7 $5,000 $250 $36,750 $5,513 $42,263 15 kvTakeoff Structure 7 $5,000 $250 $36,750 $6,513 $42,263 18 kV PT 14 $500 $25 $7,350 $1,103 $8,453 15kV CT .21 $500 $25 $11,025 $1,654 $12,679 15 kV Overcurrent Relay Package 7 $8,000 $400 $58,800 $8,820 $67,620 Meter/Relay Building 7 $10,000 $500 $73,500 $11,025 $84,525 Station Service 7 $7,500 $375 $55,125 $8,269 $63,394SitePrap/Ground Grid 7 $5,000 $250 $36,750 $5,513 $42,263 Foundations Transformer wi Oi Containment 7 $10,000 $500 $73,500 $11,025 $84,525 138 kV Circuit Switcher 7 $7,500 $375 $55,125 $8,269 $63,394 15 kV Recioser 7 $2,500 $125 $18,375 $2,756 $21,131 Bulking 7 $10,000 $500 $73,500 $11,025 $84,525 $201,000 $10,080 $1,481,760 $222,264 $1,704,024™Labor for Station,28 dayx12 hn$150x4 men TOTAL for Seven $4,135,829 Totaleach $590,847 Bethel Power Plant and Substation Description Qty Mat/unit fLab/unit 5%MISC SUBTOTAL 15%Contng JOTAL 138/13.8 kV 40 MVA Transformer 3 $450,000 $22,500 $1,417,500 $212,625 $1,630,125 13.8/4.16 kV 7.5 MVA Transformer 2 $80,000 $4,000 $168,000 $25,200 $193,200 138 kV Disconnect Switch 8 $8,500 $425 $71,400 $10,710 $82,110 138 kV Circuit Breaker 4 $60,000 $3,000 $252,000 $37,500 $289,800 138/13.8 kV Take Off Structure 1 $45,000 $2,250 $47,250 $7,088 $54,338 138 kV Bus and Supports 12 $1,500 $75 $18,900 $2,835 $21,735 13.8 kV Underground Cabling 10,000 $15 $1 $157,500 $23,625 $181,125 Site Prep/Ground Grid 1 $15,000 $750 $15,750 $2,363 $18,113 12 Breaker-13.8 kV Switchgear Lineup Basic Breakers and Cubicles =12 $35,000 $1,750 $441,000 $66,150 $507,150 Synch Panels 3 $10,000 $500 $31,500 $4,725 $36,225 Metering/Protective Relaying Package 12 $15,000 $750 $189,000 $28,350 $217,350 Foundations Transformer wi Oil Containment =5 $10,000 $500 $52,500 $7,875 $60,375 138 kV Disconnect Switch 8 $7,500 $375 $63,000 $9,450 $72,450 - 138 kV Circuit Breaker 4 $2,500 $125 $10,500 $1,575 $12,075 138/13.8 kV Take Off Structure 1 $10,000 $500 $10,500 $1,575 $12,075 Bus Supports 12 $1,000 $50 $12,600 $1,890 $14,490 Labor for Station,56 dayx12 hnx$150x8 men +t $604,800 $30,240 $635,040 $95,256 $730,296 TOTAL $4,133,031 Page 1 Donlin Creek Mine SubstationDescriptionQtyMat/unit Lab/unit 5%MISC SUBTOTAL 15%Conting TOTAL138/13.8 kV 40 MVA Transformer 2 $450,000 $22,500 $945,000 $141,750 $1,086,750 138 kV Disconnect Switch 6 $8,500 $425 $53,550 $8,033 $61,583 138 kV Circuit Breaker 3 $60,000 $3,000 $189,000 $28,350 $217,350 138 kV Take Off Structure 1 $55,000 $2,750 $57,750 $8,663 $66,413 138 kV Bus and Supports 6 $1,500 $75 $9,450 $1,418 $10,868 43.8 kV Underground Cabling 2,400 $15 $1 $37,800 $5,670 $43,470 Station Service 1 $5,000 -$250 $5,250 $788 $6,038 Site Prep/Ground Grid 1 $10,000 $500 $10,500 $1,575 $12,075 Meter/Relay Building 1 $75,000 $3,750 $78,750 $11,813 $90,563 Reactive Compensation Lot NeEst NoEst NoEst No Est No Est No Est 6 Breaker-13.8 kV Switchgear Lineup Basic Breakers and Cubicles =6 $35,000 $1,750 $220,500 $33,075 $253,575SynchPanels=1 $10,000 $500 $10,500 $1,575 $12,075 Metering/Protective Relaying Package 8 $15,000 $750 $94,500 $14,175 $108,675 Foundations Transformer wi OH Containment 2 $10,000 $500 $21,000 $3,150 $24,150 138 kV Disconnect Switch §.$7,500 $375 $39,376 $5,906 $45,281 138 kV Circuit Breaker 3 $2,500 $125 $7,875 $1,181 $9,056 138/13.8 kV Take Off Structure 1 $10,000 $500 $10,500 $1,575 $12,075 Bus Supports 6 $1,000 $50.$6,300 $945 $7,245 Meter/Relay Building $10,000 $500 $10,500 $1,575 $12,075 Labor for Station,48 dayx12 hn$150x6 men +$518,400 $25,920 $544,320 $81,648 $625,968 'TOTAL $2,705,283 Page 2 Appendix D -Power System Studies by EPS,Inc. ECrlectric Pouer Systems inc, Consulting Engineers Nuvista Power &Light Co. Donlin Creek Mine Project System Studies August 12,2003 Dr.James W.Cote,Jr. David W.Burlingame PHONE (907)522-1953 *3305 ARCTIC BLVD.,SUITE 201,ANCHORAGE,AK 99503-4575 *FAX (907)522-1182 »WWW.EPSINC.COM PHONE (425)883-2833 *3938 150th AVE NE,REDMOND,WA 98052 «FAX (425)883-8492 DONLIN CREEK MINE PROJECT SYSTEM STUDIES Table of Contents waweWwWNH"51 52 53 5.4 6 Basic Relaying Schemes 7 Recommendations System Description Short Circuit Analysis Introduction Power Flows Transient Stability Simulations Loss of Generation Loss of Mine Load Motor Starting 138 kV Line Energization nyNDAABDMTMHMHWwWNHWN DONLIN CREEK MINE PROJECT SYSTEM STUDIES 1 Introduction The Donlin Creek Mine Project is located in southwest Alaska.A transmission line interconnection at 138 kV is proposed between the mine at Donlin Creek and the Bethel Power Plant in Bethel,a line length of approximately 190 miles.Between the Bethel Power Plant and the Donlin Creek Mine there aré several villages,to be served either directly off the 138 kV transmission line or from a tapped substation on the transmission line.Additionally,a short interconnection from the Bethel Power Plant to the existing Bethel Utilities Diesel Power Plant is proposed, and three single wire ground return (SWGR)feeders are proposed to serve several native villages in the region. This report documents several system studies performed by Electric Power Systems,Inc.(EPS)for the proposed Donlin mine project.These studies include power flow analyses,short circuit analysis,transient stability studies, basic relaying schemes and costs,and suggestions and recommendations.The focus of this report is the 138 kV transmission line feasibility and associated equipment.The studies represent the potential village loads as simplyloadsonthetransmissionline,without operating characteristics of the lines to serve the villages. The SWGR feeders were previously studied by EPS and were not modeled in detail in these studies,other than to represent the feeder loads where interconnected to the proposed transmission system. 2 System Description The proposed system consists of a new Bethel Power Plant,a new transmission line from the plant to the Donlin Creek Mine,several 138 /12.47 kV substations along the transmission line,a new 13.8 kV tie to the existing Bethel Diesel Power Plant,and three Single Wire Ground Return (SWGR)feeders.Each of these components is discussed below.Oneline diagrams for the proposed system,showing two different generation options,are showninAppendix1. The Bethel Power Plant consists of a main 13.8 kV bus with generation connected at 13.8 kV.Two generation -options were considered,labeled Coal-Fired and Combined Cycle on the attached onelines.The Coal-Fired alternative consists of two 45 MW coal fired steam turbines and one 42 MW combustion turbine.The Combined Cycle alternative consists of three 42 MW combustion turbines and one 25 MW steam turbine. The Bethel Power Plant also consists of several transformers connected to the 13.8 kV bus,plus one feeder.The transformers include two station service transformers rated at 13.8 /4.16 kV,7.5 MVA each,three step-up transformers for the transmission line to the mine,rated at 13.8 /138 kV,40 MVA each,and two single phase transformers for two of the SWGR feeders,rated 13.8 kV line-to-line /80 kV line-to-ground,7.5 MVA each.The one feeder is an express feeder to the Bethel Utilities Diesel Power Plant,roughly 1.5 miles away.At the Diesel Power Plant Substation,a three winding 13.8 /12.47 /4.16 kV,15/10 /5 MVA transformer is proposed to tie the express feeder into the existing Bethel system. The proposed 138 kV transmission line is 190.6 miles long,954 ACSR construction on X-frame structures for all but the first 5.3 miles of the line.Along the length of the line are seven native villages to be interconnected at a voltage of 12.47 kV using three phase 138 /12.47 kV transformers.At Aniak substation,the proposed transformer is rated at 1000 kVA.At the other six villages,the proposed transformer ratings are 500 kVA. The preliminary Donlin Creek Mine design includes 138 kV and 13.8 kV buses,with two step-down transformers rated at 138 /13.8 kV,40 MVA each.The transmission line interconnects to the mine through a 138 kV breaker DONLIN CREEK MINE PROJECT SYSTEM STUDIES and bypass switch provided by the mine.The mine load is served by several 13.8 kV feeders.The mine includes a SVC system on the 13.8 kV bus which regulates voltage and is supposed to reduce voltage sags associated with both starting large loads at the mine and normal operations at the mine. EPS was responsible for system analysis of the transmission system for mine loads of 55,70,and 85 MW,and for conditions with no mine load. 3 Power Flows Power flows were run for the proposed system with mine loads of 0,55,70,and 85 MW.The loads throughout the proposed system are shown in table 1 below,with the Donlin Mine load shown at 55 MW.System data for the power flow models are attached in Appendix 1. Table 1 --System Loads PSS/E Name Xfmr Load Load Load Bus #kVA kW KkVAR "kVA PF 111 - Akiachuk 500 477 358 596 0.80 121 Akiak 500 408 306 510 0.80 131 Tuluksak §00 264 198 330 0.80 141 Kalskag 500 500 -375 625 0.80 151 Aniak 1000 1054 791.1318 0.80 161 Chuathbaluk 500 80 60 100 0.80 171 Crooked Creek 500 542 407 678 0.80 -20 SWGR-South 7500 5756 4317 7195 0.80 30 SWGR-West 7500 4660 3495 5825 0.80 50 .-SWGR-Yukon 7500 5309 3982 6636 0.80 11 Bethel SS1 7500 3000 1450 3332 0.90 12 Bethel SS2 7500 3000 1450 3332 0.90 40 Donlin Mine 80000 55000 18078.5 57895 0.95 13 Bethel 12.47 10000 11143 8357 13929 0.80 14 Bethel 4.16 5000 5572 4179 |6965 0.80 totals 96288 47445 The power flow results are shown on the oneline diagrams in Appendix 2,and a summary of various parameters is shown in Table 2 below.The initial power results indicated a need for additional voltage support along the 138 kV transmission line during heavy mine loading periods.The size of the SVC to be provided at Donlin Mine was unknown.Power flows with the mine load at 55 MW and only one SVC located at the mine showed low 138 kV voltages and a 12.47 distribution voltage at Crooked Creek of 95.7%with full tap changer control,with a SVC output of 31.7 MVAR (case 9 in Table 2).The SVC was set to regulate the 13.8 kV mine voltage to 1.0 per unit. When the mine load increased to 85 MW,with only one SVC located at the mine,all voltages decreased with the 12.47 kV voltage at Crooked Creek decreasing to 88.5%,with a Donlin Mine SVC output of 81.5 MVAR (case 10 in Table 2).Based on these results,we propose placing an additional SVC at Aniak which is roughly midway along the transmission line.A bank of switchable capacitors at Aniak may also provide acceptable steady state voltages, but a SVC provides better control of transient voltage,especially when controlling voltage during mine outages orwhenenergizingtheline.This is discussed further in the section on transient stability results (below). lectric_Power S ystems ,Consulting Engineers DONLIN CREEK MINE PROJECT SYSTEM STUDIES The majority of the power flow results shown in Appendix 2 include two SVC systems,one at Donlin Mine on the 13.8 kV bus and one at Aniak on the 138 kV bus.The Aniak SVC would normally be connected at a lower voltage via a step-down transformer,but for study purposes,the SVC was shown connected to the 138 kV bus.Both SVC systems were sized at -50 MVAR to +50 MVAR,regulating the bus voltage to 1.0 per unit.Actual SVC outputs are shown on the power flow oneline diagrams and in Table 2 below.The maximum boost capacity of the SVC systems,50 MVAR each,is based on the power flow results with 85 MW of load at Donlin Mine. Table 2 -Power Flow Results Summary Bethel- Mine Mine .Donlin Total Aniak Donlin LowestCaseLoadLoadComp%Power Generation 'Mwy (VAR)svc SVC vMVAR)Distribution(MW)(MVAR)Angle (MW)(MVAR)(MVAR)Voltage (pu) (degs) 1 0 0 none 15 42.3 0.5 52 -167 off 16.7 0.988 2 55 181 none 263 1017 49 395 42 289 3314 0.963 3 70 23.0 none 33,7 195 7.7 614 156 402 558 0.955 4 85 279 none 418 198.2 115 909 365 476 841 0.925 5 0 0 50%1.4 42.3 0.5 5 -16.4 off -16.4 0.949 6 55 18.1 50%14.8 102.3 55 27.5 -247 47.1 224 0.885 7 70 23.0 50%18.5 119.9 81 418 -89 459 37.0 0.888 8 85 27.9 50%.225 138.5 11.7 609 97 446 543 0.892 9 55 181 mone 266 101.7 50 402 off 317 317 0.957 40 85 279 none 488 1408 141 1109 off 815 815 0.885 11.85 +279 none 41.8 138.2 115 909 365 476 84.4 0.925 The initial power flow results also showed a large power angle across the 138 kV line,from Bethel to Donlin mine, for the larger mine load levels.The power angle across the 138 kV line is also shown in Table 2.Large power angles between generation sources leads to classic stability problems.However,only a minimal amount of startup generation is anticipated at the mine site,and is expected to be online only when starting the mine.Under this condition,there would be small power transfers across the 138 kV transmission line,resulting in a small power angle.As the mine load increases,the on-site generation is expected to be removed and load picked up across the transmission line.This scenario should not result in stability problems associated with the large power angles. However,EPS did run several power flows with series compensation added to the 138 kV line near Aniak.These power flow results are also included in Appendix 2 and Table 2 (cases 5 through 8).A series compensation jevel of 50%was studied.When the series compensation is added,the power angle is reduced,and the MVAR support required by the SVC systems is also reduced due to the series capacitors which add MVARs into the system. These series compensation cases have been added to this report for completeness.EPS does not foresee the need to add series compensation to the 138 kV transmission line,as discussed above. Expected system losses are also included in Table 2.Transmission line resistance and the resulting losses vary with ambient air temperature,wind conditions,and line loading.These studies used a maximum expected line resistance value in the model,thereby yielding conservative or worst case loss totals.Actual losses should be lower than the totals given in Table 2. The calculated voltages on the 12.47 kV buses at the remote village substations are based on using typical distribution transformer impedances (from American National Standard C57.12.10 and Industrial Power System Handbook by Beeman)and based on using a transformer with LTC capability of 10%tap.All distribution voltages DONLIN CREEK MINE PROJECT SYSTEM STUDIES by improving the load power factor,and/or adding distribution capacitors.The loads used in these studies are worst case maximum peak scenarios,expected in the year 2040.The most significant voltage problem occurs at Crooked Creek on the 12.47 kV bus.The power flow results indicate a need to provide some corrective action or replace the transformer with a larger transformer if the mine load and Crooked Creek loads begin to approach their maximum values studied. Separate power flows were not run based on the two generation options.Frora a power flow standpoint,the generation bus at Bethel,the 13.8 kV bus,is a swing bus and the number of generators connected to the swing bus is irrelevant.The power flow solution distributes the real and reactive power requirements of the swing bus to whatever generators are connected at the swing bus,based on initial MW output.One power flow case was run to illustrate this.Case 11 in Table 2 has the combined cycle units running instead of the Coal Fired Generation option.Note that the power flow results are identical to case 4 in Table 2,with only the generation dispatch being different.However,different generation alternatives have an impact on both short circuit and transient stability results. It should also be noted that the power flows for a mine load of 85 MW,with the maximum substation loads,and the' assumed station service and Bethel loads shows a generation total in excess of the capacity of the Bethel Power Plant using the coal fired generation alternative.The combined cycle generation alternative does have sufficient generation to meet the proposed loads. 4 Short Circuit Analysis The short circuit analysis was performed using the ETAP Powerstation software package.The power system model is identical to the power flow model used in PSS/E,except for minor differences in load models.These differences are insignificant to the short circuit calculations. Short circuit results are included in Appendix 3.Three phase to ground and single phase to ground fault currents were calculated at all appropriate three phase buses.Fault currents are not calculated for the SWGR feeders or buses.Currents are calculated with all generation online.With any generation offline,the fault currents will decrease.Fault currents in Appendix 3 are first provided for the coal-fired generation option,and then provided for the combined cycle generation option. 5 Transient Stability Simulations Transient stability simulations were conducted using the PSS/E software.Simulations included loss of generation, loss of mine load,motor starting,and line energizing.Typical dynamics data from other generators of comparable size were used for the proposed generating units at Bethel Power Plant.The dynamics data for the generators are included in Appendix 4. 5.1 Loss of Generation Transient stability case T1 represents a loss of the largest on-line unit at Bethel Power Plant.This outage was run for the maximum load case,Donlin mine at 85 MW.The transient stability results are shown in Appendix 4,with a case name of "T1-mine85”.In order to survive this outage,load shedding must occur somewhere in the system. For study purposes,load shedding relays were placed at the Donlin mine,in 3 stages.Each stage sheds 25%of the mine load,with stages set at 59.0,58.7,and 58.4 Hz.These settings are somewhat arbitrary,but show that a unit loss can be survived with appropriate load shedding.Load may be shed on the distribution system or at the ower Gy ystems DONLIN CREEK MINE PROJECT SYSTEM STUDIES mine.The only significant issue is to have enough load on load shedding to exceed the largest anticipated loss of - generation. Transient stability results for case "T1-mine85”show a frequency decay to just below 58.4 Hz,with all three stages of load shedding picked up.The frequency then recovers to 60 Hz.Simulations also show a frequency control problem when attempting to restore frequency exactly to 60 Hz.This appears to be problem with the simulation software when modeling several units at the same plant,all in isochronous control.:This is modeled by setting the machine droop to near zero,but creates a hunting problem in the software.We believe this hunting which appears near the end of the simulation to be a non-issue,caused solely by the simulation. 5.2 Loss of Mine Load The transient stability simulation for the complete loss of the mine load (case T2)represents a 138 kV breaker opening at Donlin Mine.The mine load is lost along with the Donlin SVC.Simulations were run at both 55 and 85 MW of mine load,and are shown in Appendix 4.Simulations show a transient frequency rise to around 61.5 Hz for a mine load of 55 MW,and 62.7 Hz for a mine load of 85 MW,returning to nominal in 11 seconds.The Aniak SVC regulates the 138 kV line voltage very quickly back to near 1.0 per unit.The transient frequency rise is significant due to the large percentage of total system load residing at Donlin Mine.Remedial action schemes have not been studied to reduce the over-frequency conditions,but a remedial action trip of one or more Bethel units would significantly reduce the over-frequency magnitude.Alternately,staggered over-frequency relaying of the Bethel units could be used to trip generation without a transfer trip signal from the mine.Acceptable over-frequency conditions for the generating units should be discussed with generator /turbine suppliers. 5.3 Motor Starting Transient stability simulations were run for a motor starting condition at Donlin Mine (case T3).From preliminary mine load estimates,the largest single load appears to be the Sag Mill,sized at 9.12 MW.It may be unrealistic to expect the total Sag Mill load to be a single motor,started under full load,but this case was used to define the worst case motor starting scenario.An induction motor was used to represent the Sag Mill load,and was started under full load.Typical induction motor parameters were used for the model. The initial simulations showed a prolonged under voltage condition during the motor start.A subsequent simulation was run using a reduced voltage start for the motor,at 60%nominal voltage.This simulation is provided in Appendix 4.The initial condition power flow case had a mine load of 70 MW,with the motor providing an additional 9.12 MW of load when started.The Donlin Mine SVC was included in the simulation.EPS understands that the Donlin Mine SVC is supposed to alleviate voltage dips and disturbances associated with normal mine operations. Also,we understand that our assumptions about this motor size are conservative (probably overstated).However, our simulations show a prolonged under-voltage condition in the system during the motor start.Simulations show the Donlin 138 kV bus voltage below 90%for almost 10 seconds.The motor takes near 12 seconds to reach nearly full speed.We believe that a better understanding is needed of the largest expected motor and its load at startup,in order to refine these studies and determine the actual system impact of a large mine motor start.A motor start condition at Donlin Mine may be the worst case scenario in terms of voltage,and may be the defining case for sizing the Donlin Mine SVC system. 5.4 138 kV Line Energization Transient stability simulations were run to evaluate the system voltage profile during an energizing f the 138 kV transmission line (T4 cases).These cases assume that the 138 kV line is de-energized and all load and transformers along the load are offline.The line is then energized by closing the 138 kV breaker at Bethel,picking up the line all the way to Donlin Mine on the 138 kV side.Discussions with SVC manufacturers indicated that the DONLIN CREEK MINE PROJECT SYSTEM STUDIES usual method for starting a line with SVC systems along the line and voltage control issues was to use a small fixed reactor on the secondary of the SVC transformer,and then switch out the reactor when the SVC comes online.To simulate this,cases were run with no fixed reactor at Aniak,and then again with a 10 or 20 MVAR fixed reactor at Aniak,to determine the line voltage profile and the required size of the secondary reactor.These 3 cases are shown in Appendix 4. The case with no reactor "t4-energize0”showed a transient voltage to near 118%at.Donlin on the 138 kV bus,with a steady state voltage of 114%.The case with a 10 MVAR reactor "t4-energize-10”showed a transient voltage of 110%and a steady state voltage of 108%at Donlin.The case with a 20 MVAR reactor "t4-energize-20”showed a transient voltage of 103%and a steady state voltage of 103%at Donlin.The 10 MVAR reactor should provide acceptable voltage performance for the short time before the SVC can come online and regulate voltage. 6 Basic Relaying Schemes Although the 138 kV transmission line is operated radially from the Bethel Power Plant,backfeed from various motors and on-site generation will require the system to be treated as a dual source system for protective relaying. The protective relaying is recommended to be a micro-processor-based protective relay system,with protectivecommunicationsbetweeneachrelayingterminal.. The primary protective scheme is recommended to be line distance relaying such as the SEL-421 relay,the ABB REL-512 protective relay or the Nxtphase L-Pro relay.Each of the relay's can provide the protection for the line and operate following the incorporation of the SWGR loads and substations.The relays are the most economical and reliable protection method available to the utility systems and can provide protection as well as control and operations. The relaying scheme will require three digital communication channels between each terminal,two for protective relaying and one for control and operations. Each transformer will utilize micro-processor based transformer differential protection. Each generator will utilize microprocessor-based protective relays.We recommend two protective relays on each generator.The recommended relays are Schweitzer,General Electric's UR series or Beckwith Electric. 7 Recommendations Power flow,short circuit,and transient stability results were run and basic relaying schemes were provided.From these studies,recommendations were made to add a SVC system at Aniak plus a switchable fixed reactor for line energizing. No significant differences between the two generation alternatives were found,from a system viewpoint. Load shedding relays will be required to withstand a loss of generation at Bethel Power Plant.Load can be shed anywhere in the system,as long as enough load is shed to overcome the lost generation. Protective relaying can be accomplished using industry standard protective relays and communications.Fault clearing times are within normal limits and do not require special relaying or protective schemes. ower ystems DONLIN CREEK MINE PROJECT SYSTEM STUDIES APPENDIX 1 DONLIN CREEK MINE PROJECT SYSTEM STUDIES Appendix 1 System Oneline Diagrams Power Flow Data Oneline Diagram -Aniak Substation 138 kV Bus tA 13.6 kV Bus $88 kV Chou octve stion 138 kV CircuitBethelP.1 To Bethel Power Ptant se Required va4162.4KV B (am)ethel Power Plant 0 Bett er Pia -- d Substati 138 kV Transmission Line L_J To Doniin CreekandSubstationVerticalTa4ABKV/12.47KV -7.5 aes ipa Pp Station Service 38KV40MVA Motor ted Coated Siam T .aN 1388 Crow 138 kV/12.47 kV Xfme Motor Operated 45 MW witcha;-2¢To Aniak+Qe or oJ L-3 .12.47 iv ledlLectroContro 13 BVIASBKV Insert 2 ¥ Coal-Fired Steam Turbine-+Q)- <Mw 1G 1 ,19 mi.6.5mi.954 ACSR 17.3 mi.on O To Dontin Creek Mine and Vilages B VA 3BkV Combustion Turbine Akiachak Sub.Akiak Sub.Tuluksak Sub. 42 Q °500 kVA Xfme 500 kVA Xtmr 500 kVA Xtmr 42.4 mi. a kV Bue ADDITIONS TO BETHEL UTILITIES SUBSTATION say,ay Naa-A-A ¥Connect to ac YA Y Express 13.8 kV Feeder to Bethel Utilities 2 Ean OMA 12.47 kV Bus Future Addition Existing Diesel Power Plant Substation .if\.4.16/2.4KV Bu :<)>---<¢-b>Connect to BU SWGR Transmission Linp D 4.46 kV Bus Yukon River Feader' &.4GKV/12.47KV -7.5 MVS 4.16kKV/S MVA . Station Service Future Additions ween J0L-G13.8KV3BOk'10us Kalskag Sub.«oO 26 SWGR South Feeder .BOO KVA Xf ev 3 9 iad{env Oneline Diagram-All Village Substations Except Aniak Switcher Switcher °|Vertical Tap to 138 kV Power Line |13.8kV3BOK 101te 138 RV Clout 138 KV/12.47 kV Xfme Motor Operated SWGR West Feeder Switcher -2 ¢To Village oh tT}zo Grou 12.47 kV___Switcher ;Electronic Controlled|insert 1 a-¥Reciosure | Aniak Sub. 13.aie 1000 kVA Xfmr Crooked Creek Sub,Chuathbaluk Sub. 600 kVA Xfme 500 kVA XimeMineFeeder1od-{}- °13 sky38K mm ,55-85MW load 13.5 mi.|54.3 mi.12.9 m4. To Bethel Power Plant-p>cont -_O-"-138 kV Breaker and 8:Switch Figure 2?re:ypass :.13.6 kV Bus Under Nuvista Light &Power Control Nuvista Light &Power Co. -System Oneline DiagramDonlinCreekMineSubstation To Be Constructed by Placer Dome Coal-Fired Generation Alternative BETTINE,LLC 6/24/03-FJB Oneline Diagram -Aniak Substation E}ystem 138kVBus Donlin Creek Mine Substation To Be Constructed by Placer Dome 138 kV Breaker and Bypass Switch Under Nuvista Light &Power Control Reactive-,13.8kV8 138 KV Chroul 38 kVSAuspaneCorperaation$28kv Crout4.16/2.4KV B <p Bethel Power Plant ToBathal Power Ptant fr 1 - d Substati 138 KV Transmission Line LJ To Dontin CreekanubstationvTa4.1GKVI2.4TRV -7.5 MV. 13 eRvit38KV ertical Tap .40 MVA 498 kVIN2.47 kV Xt Motor Operated Combustion Turbine a-¥FS38 kV Circuit _Disconnect Swit 42 MW he-2 To Aniak,3 7 LI 5)(BAT HV liedlectronicControl4-¥ss Reciosure¥VANSBkV Insert 2 Sombustion Turbine Lh --_ LG 7 .>19 mi.65m.854 ACSR 17.3 mi.aX}-<€2):<Lb.O To Doniin Creek Mine ,and Villages \al BayBkVII38KVtiCombustionTurbine Akiachak Sub.Akiak Sub.Tuluksak Sub.)np ED 3 5 , 500 kVA Xfme 500 kVA Xfmr 500 kVA Xfme 42.1 mi. 138 kV Bus ADDITIONS TO BETHEL UTILITIES SUBSTATION 13.BV-12.47kV-4.18kV Steam Turbt a A-A-Aleamine ngs 25 MW Y Express 13.8 kV Feeder to Bethel Utilities --Sorredic BU Future Addition =+-)-E01:<-p>Existing Diesel Power Piant Substation 12.47kKV10 MVA---»SWGR Transmission Linb<3 Connect to BU Yukon River Feedera4.46KVIS MVA - Future Additions 138k Pits13.aky 70Viets Kaiskag'Sub.«m1.2 ¢500 kVA Xf UW4.16/2.4KV Bu Cems <a»-3 SWGR South Feeder ™|138kV saan Oneline Diagram -All Village Substations Except Aniak grout gireuk'1BKVI12 4are 75 "a ig 9 P'Switcher SwitcherSwitcher,Vertical Tap to 138 kV Power Line 43.8KV 70 L-L3BOKV70L-G Motor Operatedfo438kVCkcuk138KV/12.47kVXfmr Motor Opera! SWGR West Feeder Switcher -2 ¢To Village 5 25 mi.z:Z VYSuite12.47 KV ' ich ;Switcher A-¥-_Giearonie Contraled|insert 1 Reciosuwe | .Aniak Sub. 43.BkKV/138kV40MVA 1000 kVA xine "a¥Crooked Creek Sub.Chuathbaluk Sub,'800 kVA XtmeMineFeeder1<p>"Eo*Mine Feeder 2 1g aevyt3eKV Hae 55-85 MW load 13.5 mm.|54.3 mi.|12.9 mm. A To Bethel Power Plant-> Figure ?? Nuvista Light &Power Co. System Oneline Diagram Combined-Cycle Generation Alternati BETTINE,LLC 6/24/03-FJB Load Data PSS/E Bus Name ID|xfmr #kva kw|kvar PF 111 Akiachuk 1 500 477 358 0.80 121 Akiak 1 500 408 306 0.80 131 Tuluksak 1 500 264 198}*0.80] 141 Kalskag 1 500}500]375 0.80] 151 Aniak 1 1000}1054 791 0.80 161|Chuathbaluk |1 500 80 60 0.80 171|Crooked Creek |1 500 542 407 0.80 20}SWGR-South {|1|7500]5756]4317 0.80 30!SWGR-West |1|7500]4660|3495 0.80 50]SWGR-Yukon |1 |7500}5309]3982 0.80] 11]Bethel SS1 1}7500}3000}1450 0.90] 12|Bethel SS2 41 {7500}3000}1450 0.90] 40]Donlin Mine 1 {|80000}55000]18079 0.95 13]Bethel 12.47 |1.|10000]11143}8357 0.80 14|Bethel 4.16 1 5000]5572|4179 0.80 totals}96288)47445 Electric Power Systems,Inc. 8/12/2003 Transmission Line Data Assumed Geometry Caiculated Bus#|BUS#|CKT|Conductor p12 |p23 |p13 |GMD (mies)vo kv |Zbase |R(pu)|X(pu)|B(pu)|MVA-N 100 105|1 954 ACSR 7.1)7.1]10.0}7.94 5.3 50)138.0}190.4)0.0031]0.0178)0.00671}241.4 105 110}1 954 ACSR 16.0}16.0]32.0)20.16]13.7 65}138.0;190.4}0.0081!0.0543)0.01465|241.4 110 120)1 954 ACSR 16.0)16.0/32.0;20.16 6.5 65|138.0}190.4)0.0039)0.0258}0.00695)241.4 120 130]1 954 ACSR 16.0]16.0}32.0}20.16)17.3 65|138.0}190.4}0.0102]0.0685)0.01850;241.4 130 140|1 954 ACSR 16.0}16.0}32.0/20.16]42.1 65}138.0!190.4)0.0249)0.1668]0.04501 241.4 140 150|1 954 ACSR 16.0}16.0|32.0}20.16}25.0 65;138.0}190.4)0.0148]0.0990]0.02673]241.4 150 160)1 954 ACSR 16.0}16.0}32.0}20.16}12.9 65|138.0!190.4]0.0076}0.0511]0.01379]241.4 160 170|1 954 ACSR 16.0}16.0]32.0]20.16)54.3 65)138.0}190.4)0.0322}0.2151]0.05806!241.4 170 180|1 954 ACSR 16.0}16.0}32.0]20.16]13.5 65}138.0}190.4]0.0080}0.0535!0.01443}241.4 Electric Power Systems,Inc.8/12/2003 Electric Power Systems,Inc. Transformer Data on xfmr base Caiculated BUS#|BUS#}|CKT)%Z |X/R |MVA}R(pu)|X (pu) 10 100;1 9 27.3 40|0.0082;0.2248 10 100;2 9 27.3 40]0.0082|0.2248 10 100}3 9 27.3 40!0.0082}0.2248 10 11}1 6.5 |14.23 7.5)0.0608]0.8645 10 12|1 6.5 |14.23 7.5}0.0608}0.8645 111 110}1 9 3.09]0.500}5.5422]17.1255 121 120!1 9 3.09]0.500}5.5422]17.1255 131 130}1 9 3.09}0.500)5.5422)17.1255 141 140}1 9 3.09}0.500]5.5422)17.1255 151 150!1 9 5.79|1.000}1.5317]8.8687 161 160;1 9 3.09]0.500]5.5422/17.1255 171 170|1 9 3.09}0.500|5.5422)17.1255 40 180|1 9 27.3 40;0.0082|0.2248 40 180]2 9 27.3 40;0.0082]0.2248 10 20!1 6.5 |14.23}7.500]0.0608)0.8645 10 30]1 6.5 |14.23}7.500;0.0608]0.8645 140 50;1 6.5 |14.23}7.500)0.0608]0.8645 8/12/2003 L PSS/E Power Flow Data PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 55 MW WITH SVC a n----+--++--++8 BUSES--------- -------- TOTAL PQ<>0.PQ=0.PE/E PE/Q SWING OTHER 27 15 11 i?)0 1-0 wane ene ------AC BRANCHES------------- TOTAL §_RXB RX RXT RX=0.IN 29 9 0 20 mm)29 TOTAL GENERATION PQLOAD I LOAD Y LOAD MW 101.7 96.8 0.0 0.0 MVAR 33.4 47.8 0.0 0.0 TOTAL MISMATCH =0.00 MVA X---- -AT BUS MAX.MISMATCH =0.00 MVA 40 DONLIN HIGH VOLTAGE =1.04000 PU 10 BETHEL LOW VOLTAGE =0.94037 PU 14 BETHEL X-------SOLV AND MSLV-------X X---------- ACCP ACCQ ACCM 1.600 1.600 1.000 0.00010 100 1.00 0.100 TOL ITER ACCN TOL ITER DVLIM NDVFCT ACCTY TUE,AUG 12 2003 17:35 SYSTEM SUMMARY GENERATION AREAS ZONES OWNERS AREA LOADS PLANTS MACHS USED USED USED TRANS 15 1 7 1 4 1 0 3WND MULTI-SECTION X---DC LINES--X FACTS OUT XFRM LINES SECTNS 2 TRM N-TRM VSC DEVS 0 4 0 0 0 0 oO 0 SHUNTS CHARGING LOSSES =SWING0.0 0.0 4.9 101.7 -33.2 20.7 39.5 33.4 ----X SYSTEM X------SWING-----xX 13.8 BASE 10 BETHEL 13.8 13.8 100.0 4.16 ADJTHR ACCTAP TAPLIM THRSHZ PQBRAK 0.0050 1.0000 0.0500 0.000100 0.700 TOL ITER BLOWUP 20 0.9900 0.9900 1.000 0.000010 20 5.00 Electric Power Systems,Inc,8/12/2003 PSS/E Power Flow Data PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E TUE,AUG 12 2003 17:35 DONLAN MINE STUDIES BY EPS,JULY 2003 BUS DATA MINE LOAD 55 MW WITH SVC BUS#NAME BSKV CODE LOADS VOLT 10 BETHEL 13.800 0 1.0400 11 BETHEL 4.1600 1 1.0257 12 BETHEL 4.1600 1 1.0257 13 BETHEL 12.470 1 0.9587 14 BETHEL 4.1600 1 0.9404 20 SWGR-S 138.00 1 0.9980 30 SWGR-W 138.00 1 1.0065 40 DONLIN 13.800 1 1.0000 -32. 50 SWGR-YUK138.00 1 0.9608 12. 100 BETHEL 138.00 0 1.0347 27. 105 DUMMY 138.00 0 1.0321 26. 110 AKIACHUK138.00 0 1.0253 24.7 111 AKIACHUK12.470 1 0.9983 -9.1 120 AKIAK 138.00 0 1.0223 23.7 1 0 1 0 1 0 1 0 1 ie] 1 0 BQ).isfe]is)GqZzLa|AREA ZONE OWNER oawrNONoo'oteetoeNNHWMNwWAEAEHDEHFPNOOO11O.121 AKIAK 12.470 0.9999 -9.4 130 TULUKSAK138.00 1.0152 21.2 131 TULUKSAK12.470 1.0064 -10.8 140 KALSKAG 138.00 1.0010 15.0 141 KALSKAG 12.470 0.9854 -19.1 150 ANIAK 138.00 1.0000 11.6 151 ANIAK 12.470 0.9900 -23.5 160 CHUATHBA138.00 0.9982 9.9 161 CHUATHBA12 .470 1.0078 -20.7 170 CROOKED 138.00 0.9926 2.8 171 CROOKED 12.470 0.9630 -31.9 180 DONLIN 138.00 0.9920 1.0 .oooocooocooococoaoocaoaco0oaao0cooeooco0o0ocoeo0couwoooogooO00O0cococococecooooc0ce0o0ceo0ceo°o0o0c}.eoee(oo=MoM=MooMoMol=MooMoMoN-M-M-----------a-Mn)ooMoMoMoMRoMoM-MoM-M-R-M--M--------=i-monnPRRRPPPHBEPPPEPPPEPEEeeeeBeePNENENPNHEPNPNPNEPPHEWRWWPPPBPRPPBPHPREPHEPRPPRPEPRPPRPPPPPPPPPPPREPHPPPHPHPPPRPPRPPEPBPPBPEPEPPPREElectric Power Systems,Inc.8/12/2003 PSS/E Power Flow Data PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E TUE,AUG 12 2003 17:35 DONLAN MINE STUDIES BY EPS,JULY 2003 LOAD DATA MINE LOAD 55 MW WITH SVC ', BUS#NAME BSKV ID CD ST PSI -MVA-LOAD CUR-LOAD 11 BETHEL 4.16 1 11 1.000 3.0 1.5 0.0 0.0 0.0 0.0 1 12 BETHEL 4.16 1 11 1.000 3.0 1.5 0.0 0.0 0.0 0.0 1 13 BETHEL 12.5 1 11 21.000 11.1 8.4 0.0 0.0 0.0 0.0 1 14 BETHEL:4.16 1 11 1.000 5.6 4.2 0.0 0.0 0.0 0.0 1 20 SWGR-S 138 1 11 #1.000 5.8 4.3 0.0 0.0 0.0 0.0 1 30 SWGR-W 138 1 11 1.000 4.7 3.5 0.0 0.0 0.0 0.0 1 40 DONLIN 13.8 1 11 1.000 55.0 18.1 0.0 0.0 0.0 0.0 1 50 SWGR-YUK 138 1 11 1.000 5.3 4.0 0.0 0.0 0.0 0.0 1 111 AKIACHUK12.5 1 11 1.000 0.5 0.4 0.0 0.0 0.0 0.0 1 121 AKIAK 12.5 1 11 1.000 0.4 0.3 0.0 0.0 0.0 0.0 1 131 TULUKSAK12.5 1 11 1.000 0.3 0.2 0.0 0.0 0.0 0.0 1 141 KALSKAG 12.5 1 11 #1.000 0.5 0.4 0.0 0.0 0.0 0.0 1 151 ANIAK 12.5 1 11 1.000 1.1 0.8 0.0 0.0 _0.0 0.0 il 161 CHUATHBA12.5 1 1.1 1.000 0.1 0.1 0.0 0.0 0.0 0.0 1 171 CROOKED 12.5 1 11 1.000 0.5 0.4 0.0 0.0 0.0 0.0 1 PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E TUE,AUG 12 2003 17:35 DONLAN MINE STUDIES BY EPS,JULY 2003 GENERATING MINE LOAD 55 MW WITH SVC PLANT DATA BUS#NAME BSKV COD MCNS PGEN QGEN QMAX QMIN VSCHED VACT.PCT Q REMOTE 10 BETHEL 13.8 3 7 101.7 33.4 99.0 -49.5 1.0400 1.0400 100.0 l PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E TUE,AUG 12 2003 17:35 DONLAN MINE STUDIES BY EPS,JULY 2003 GENERATOR MINE LOAD 55 MW WITH SVC UNIT DATA BUS#NAME BSKV CD ID ST PGEN QGEN QMAX QMIN PMAX PMIN OWN 10 BETHEL 13.8 31 1 39.5 13.0 33.8 -16.9 45.0 0.0 1 1.000 10 BETHEL 13.8 32 1 39.5 13.0 33.8 -16.9 45.0 0.0 1 1.000 10 BETHEL 13.8 33 1.22.6 7.4 31.5 -15.8 42.0 0.0 1 1.000 10 BETHEL 13.8 3 4 0 25.0 0.0 31.5 -15.8 42.0 0.0 1 1.000 10 BETHEL 13.8 35 0O 25.0 0.0 31.5 -15.8 42.0 0.0 1 1.000 10 BETHEL 13.8 36 0 25.0 0.0 31.5 -15.8 42.0 0.0 1 1.000 10 BETHEL 13.8 37 0O 15.0 0.0 18.8 -9.4 25.0 0.0 1 1.000 NNNNNNNWWWPPPY -LOAD AREA ZONE OWNER PHPPEPEPPeePPPeeFRACT OWN FRACT MBASE 56. 56. 52. 52. 52. 52. 31.NwnmuwmNYbyoooo00oOZSso .0000 .0000 -0000 .0000 .0000 -0000 -0000 Electric Power Systems,Inc.8/12/2003 PSS/E Power Fiow Data PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E TUE,AUG 12 2003 17:35 DONLAN MINE STUDIES BY EPS,JULY 2003 SWITCHED MINE LOAD 55 MW WITH SVC SHUNT DATA BUS#MOD VHI VLO SHUNT X-------X X-------X X-------X X-------X REMOTE VSC NAME 40 2 1.0000 1.0000 - 21.07 1:-100.00 150 2 1.0000 1.0000 -45.76 1:-100.00 PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E TUE,AUG 12 2003 17:35 DONLAN MINE STUDIES BY EPS,JULY 2003 BRANCH DATA MINE LOAD 55 MW WITH SVC X------FROM- ---X X-------TO-------x ZS BUS#NAME =BSKV BUS#NAME BSKV CKT LINE R LINE X CHRGING I T RATEA RATEB RATEC LENGTH OWN1 FRAC1 OWN2 FRAC2 OWN3 FRAC3 OWN4 FRAC4 100 BETHEL 138*105 DUMMY 138 1 0.00314 0.01785 0.00671 1 241.4 0.0 0.0 0.0 1 1.000 105 DUMMY 138*110 AKIACHUK 138 1 0.00811 0.05428 0.01465 1 241.4 0.0 0.0 0.0 1 1.000 110 AKIACHUK 138*120 AKIAK 138 #1 0.00385 0.02575 0.00695 1 241.4 0.0 0.0 0.0 1 1.000 120 AKIAK 138*130 TULUKSAK 138 1 0.01025 0.06854 0.01850 1 241.4 0.0 0.0 0.0 1 1.000 130 TULUKSAK 138*140 KALSKAG 138 1 0.02494 0.16679 0.04501 1 241.4 0.0 0.0 0.0 1 1.000 140 KALSKAG 138*150 ANIAK 138 1 0.01481 0.09904 0.02673 1 241.4 0.0 0.0 0.0 1 1.000 150 ANIAK 138*160 CHUATHBA 138 1 0.00764 0.05111 0.01379 1 241.4 0.0 0.0 0.0 1 1.000 160 CHUATHBA 138*170 CROOKED 138 1 0.03216 0.21512 0.05806 1 241.4 0.0 0.0 0.0 1 1.000 170 CROOKED 138*180 DONLIN 138 1 0.00800 0.05348 0.01443 1 241.4 0.0 0.0 0.0 1 1.000 Electric Power Systems,Inc.8/12/2003 PSS/E Power Flow Data PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 55 MW WITH SVC TUE,AUG 12 2003 17335 2 WINDING XFRMER IMPEDANCE DATA X------FROM--- --X X-------TO-------x XFRMER CC BUS#NAME BSKV BUS#NAME BSKV CKT NAME ZM Ri1-2 =X 1-2 WIBASE MAG1 MAG2 RATA RATB RATC 10 BETHEL 13.8 11 BETHEL 4.16 1 11 0.06075 0.86453 100.0 0.0000 0.0000 8 0 0 10 BETHEL 13.8 12 BETHEL 4.16 1 11 0.06075 0.86453 100.0 0.0000 0.0000 8 0 0 10 BETHEL 13.8 20 SWGR-S 138 1 11 0.06075 0.86453 100.0 0.0000 0.0000 8 0 0 10 BETHEL 13.8 30 SWGR-W 138 1 11 0.06075 0.86453 100.0 0.0000 0.0000 8 0 0 10 BETHEL 13.8 100 BETHEL 138 1 11 0.00824 0.22485 100.0 0.0000 0.0000 40 0 0 10 BETHEL 13.8 100 BETHEL 138 2 11 0.00824 0.22485 100.0 06.0000 0.0000 40 0 0 10 BETHEL 13.8 100 BETHEL 138 3 11 0.00824 0.22485 100.0 0.0000 0.0000 40 0 0 40 DONLIN 13.8 180 DONLIN 138 1 11 0.00824 0.22485 100.0 0.0000 0.0000 40 0 0 40 DONLIN 13.8 180 DONLIN 138 2 11 0.00824 0.22485 100.0 0.0000 0.0000 40 0 0 50 SWGR-YUK 138 140 KALSKAG 138 1 11 0.06075 0.86453 100.0 0.0000 0.0000 8 0 0 110 AKIACHUK 138 111 AKIACHUK12.5 1 11 5.54224 17.12552 100.0 0.0000 0.0000 1 0 0 120 AKIAK 138 121 AKIAK 12.5 1 11 5.54224 17.12552 100.0 0.0000 0.0000 1 0 0 130 TULUKSAK 138 131 TULUKSAK12.5 1 11 5.54224 17.12552 100.0 0.0000 0.0000 1 0 0 140 KALSKAG 138 141 KALSKAG 12.5 1 11 5.54224 17.12552 100.0 0.0000 0.0000 1 0 0 150 ANIAK -138 151 ANIAK 12.5 1 11 £2.53173 8.86870 100.0 0.0000 0.0000 1 0 0 160 CHUATHBA 138 161 CHUATHBA12.5 1 11 5.54224 17.12552 100.0 0.0000-0.0000 1 0 0 170 CROOKED 138 171 CROOKED 12.5 1 11 5.54224 17.12552 100.0 0.0000 0.0000 1 0 0 PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E TUE,AUG 12 2003 17:35 DONLAN MINE STUDIES BY EPS,JULY 2003 2 WINDING XFRMER MINE LOAD 55 MW WITH SVC TAP &CONTROL DATA X------FROM------X X-cennee TO-------x SMWC X--CONTROLLED BUS-XBUS#NAME §BSKV BUS#NAME =BSKV CKT T T 1 W WINDV1 NOMV1 ANGLE WINDV2 NOMV2 CN RMAX RMIN VMAX VMIN NTPS BUS#NAME BSKV10BETHEL13.8 11 BETHEL 4.16 1 1711 1.0000 0.000 30.0 1.0000 0.000 0 1.1000 0.9000 1.1000 0.9000 5 10 BETHEL 13.8 12 BETHEL 4.16 1 1T T 11.0000 0.000 30.0 1.0000 0.000 0 1.1000 0.9000 1.1000 0.9000 5 10 BETHEL 13.8 20 SWGR-S 138 1 1TT 11.0000 0.000 0.0 1.0000 0.000 0 1.1000 0.9000 1.1000 0.9000 510BETHEL13.8 30 SWGR-W 138 1 1T7TT1 1.0000 0.000 0.0 1.0000 0.000 0 1.1000 0.9000 1.1000 0.9000 =510BETHEL13.8 100 BETHEL 138 1 1TT 1 1.0000 0.000 30.0 1.0000 0.000 0 1.1000 0.9000 1.1000 0.9000 510BETHEL13.8 100 BETHEL 138 2 1TT 1 1.0000 0.000 30.0 1.0000 0.000 0 1.1000 0.9000 1.1000 0.9000 =510BETHEL13.8 100 BETHEL 138 3 1TT 1 1.0000 0.000 30.0 1.0000 0.000 0 1.1000 0.9000 1.1000 0.9000 5 40 DONLIN 13.8 180 DONLIN 138 1 1 F F 1 1.0000 0.000 30.0 1.0000 0.000 0 1.1000 0.9000 1.1000 0.9000 540DONLIN13.8 180 DONLIN 138 2 1 F F 1 1.0000 0.000 -30.0 1.0000 0.000 0 1.1000 0.9000 1.1000 0.9000 =550SWGR-YUK 138 140 KALSKAG 138 1 1 FF 11.0000 0.000 0.0 1.0000 0.000 0 1.1000 0.9000 1.1000 0.9000 =5110AKIACHUK138111AKIACHUK12.5 1 1 T T 1 1.0750 0.000 -30.0 1.0000 0.000 1 1.1000 0.9000 1.0100 0.9900 33 -111 AKIACHUK12.5 120 AKIAK 138 121 AKIAK 12.5 1 1TT 1 2.0625 0.000 -30.0 1.0000 0.000 1 1.1000 0.9000 1.0100 0.9900 33 121 AKIAK 12.5 130 TULUKSAK 138 131 TULUKSAK12.5 1 1 T T 1 1.0437 0.000 -30.0 1.0000 0.000 1 1.1000 0.9000 1.0100 0.9900 33 -131 TULUKSAK12.5 140 KALSKAG 138 141 KALSKAG 12.5 1 1 TT 11.1000 0.000 -30.0 1.0000 0.000 1 1.1000 0.9000 1.0100 0.9900 33 -141 KALSKAG 12.5 150 ANIAK 138 151 ANIAK 12.5 1 1TT 11.1000 0.000 -30.0 1.0000 0.000 1 1.1000 0.9000 1.0100 0.9900 33 -151 ANIAK 12.5 160 CHUATHBA 138 162 CHUATHBA12.5 1 1 TT 1 1.0250 0.000 -30.0 1.0000 0.000 1 1.1000 0.9000 1.0100 0.9900 33 -161 CHUATHBA12.5 170 CROOKED 138 171 CROOKED 12.5 1 1 TT 1 1.1000 0.000 -30.0 1.0000 0.000 1 1.1000 0.9000 1.0100 0.9900 33 -171 CROOKED 12.5 Electric Power Systems,Inc.8/12/2003 PSS/E Power Flow Data PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E TUE,AUG 12 2003 17:35 DONLAN MINE STUDIES BY EPS,JULY 2003 3 WINDING XFRMER MINE LOAD 55 MW WITH SVC IMPEDANCE DATA XFRMER X--WINDING 1 BUS-X X--WINDING 2 BUS-X X--WINDING 3 BUS-X sc NAME BUS#NAME BSKV BUS#NAME BSKV BUS#NAME BSKV CKT T Z R1-2 X1-2 R 2-3 X 2-3 R 3-1 X 3-1 OWNR FRACT .10 BETHEL 13.8 13 BETHEL 12.5 14 BETHEL 4.16 1 11 0.04200 0.64900 0.10600 1.29600 0.10600 1.29600 1 1.000 -PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E TUE,AUG 12 2003 17:35 DONLAN MINE STUDIES BY EPS,JULY 2003 3 WINDING XFRMER MINE LOAD 55 MW WITH SVC WINDING DATA XFRMER X---WINDING BUS--X S CCC STAR POINT BUS NAME BUS#NAME.BSKV TW2Z2M RWNDNG X WNDNG WBASE WIND V NOM V ANGLE RATA RATB RATC MAG]MAG2 VOLTAGE ANGLE 10 BETHEL 13.8%1111 0.02100 0.32450 100.0 1.0000 0.000 0.0 15 0 0 0.00000 0.00000 0.99005 -2.9 13 BETHEL 12.5 1 0.02100 0.32450 100.0 1.0000 0.000 0.0 -10 0 te) 14 BETHEL 4.16*1 0.08500 0.97150 100.0 1.0000 0.000 0.0 5 0 0 PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E TUE,AUG 12 2003 17:35 DONLAN MINE STUDIES BY EPS,JULY 2003 3 WINDING XFRMER MINE LOAD 55 MW WITH SVC CONTROL DATA XFRMER X--WINDING 1 BUS-X CC X--CONTROLLED BUS-X NAME BUS#NAME BSKV W Z CN)RMAX RMIN VMAX VMIN NTPS BUS#,NAME BSKV CR cx 10 BETHEL 13.8 11 O 1.1000 0.9000 1.1000 0.9000 5 Electric Power Systems,Inc.8/12/2003 APPENDIX 2 DONLIN CREEK MINE PROJECT SYSTEM STUDIES Appendix 2 Power Flow Results (Onelines) 120BETHEL110 1301et408AKIACHUKAKIAK.TULUKSAK DUMMY 30 9 30 2S 3.0 89 89 |69 so fas 24 ff 79 0 9 77 1.5 9 42 Be 2g 1.2 9 3.6 42 |42 6.7 53 6.0 8 67 78 74 3.0 gs He "3.0 12 ;Ig 4.2 "4fe£8 AKIACHUK axiak 140 164 KALSKAG'S:7614.9R B30 3S ye 3.0 = 4.2 &2 $3 1.2 184 0.998Onn3.8 04©6.8R DONLAN MINE STUDIES BY EPS,JULY 2003 60 NO MINE LOAD,WITH SVC . 1.008'3S |MON,AUG 112003 12:39 28.4 150Bus-VOLTAGE (PUVANGLE ANIAKBranch-MW/MVAR .ATC-Equipment -MW/MVAR .05 451 ANI 0.0°JE 44e)--sve "50.0sw gto 667 0.990|07 68O+20 ry)SWGR-S 40 170 .1.000DONLNCROOKED18028.4 n CHUATHBA 58 2S 609 58 0.0 ff 06 068 07 48 2298 43 |43 [>-4.5 JF 10 68 9 es ' so 71 161 x 9.908 oo CROOKED CHUATHEA -+6 Jer 8 04svc60.0000sw 04 8 63.|9,9961.012 "2,1.000 0.0 1,006 4A 28.2 30424 40 41 BETHEL 100 110 RK 130BETHELBETHEL105AKIACHUKTULUKSAK DUMMY 3.0 8 228 2S &227 9 661 68.0 |68.0 67.7 9 672 67.0 9 66.6 06.1 9 o5.02 oe o ---r15922ee34493232j3.2 2.3 9 1.9 1.5 9 12 -0.2 9-00 ze 2S &27 S ; - :22 -8 ER 4 AKIACHUK Bix 140 30.5 KALSKAG (5 ----y 04813.0R 08 o =0 o4 : SWGR-YUK = #5 1.025 1015 144 33 24.7 21243.0R 440 O86 =05 22.6Cc-I 0.98574K719.1 58.0 OONLAN MINE STUDIES BY EPS,JULY 2003 73 MINE LOAD 55 MW WITH SVC 1,004@-|MON,AUG 11 2003 12:57 15.0 150Bus-VOLTAGE (PUVANGLE ANIAK Branch -MW/MVAR 58.4@)-Equipment -MW/MVAR 841 0.0)WW( -svc -60.0 | sw gio 2 45.8 57.3©|20 4.0SWGR-S 40 180 170 1,000DONLINCROOKED16016DONLINCHUATHBA "65.4 55.4 i -66.0 67.0 9}-57.1 ' 27.6 276 a 73 7.0 6s 6.2 9 52642J3.6 #9 = 161171gasoreCROOKEDCHUATHEA 84 4 S 38 =®- 1,008 -20.71,000 9.982 0.903 0.963 a "32.6 '28 31.0 10 . "BETHEL 110 120 130BETHELBETHEL105AKIACHUKAKIAKTULUKSAK DUMMY 309 30 88 30 ff 287 28.6 065.0 ©-85.7 857 05.1 ff ase 24.3 9 03.9 83.2 ff a29SAa 1-15 =2 S-15 #36 6 IS 1.0 9 6.6 6.1 9 64 2.8 24 1.4 1.0 18 9-20oS#8 sg20 zy 3S Be 208 , 36 82 95 49 I uo 485 KALSKAG.G --81.214.7R Bh 287 2 $=28.6 04 6 ry) 3a Se Se 73 | 468 J 53'G -23.2 1.016 0.90214.7R oes 22.0 112 4400 0s -05 265©8.4R 16.4 DONLIN MINE STUDIES BY EPS,JULY 2003 137 MINE LOAD 70 MW WITH SVG 0.996©|WED,AUG 13 2003 9:39 10.9 A 150Bus-VOLTAGE (PUVANGLE ANIAK16.0 @ranch -MW/MVAR 745©)Equipment -MW/MVAR 153 16.8 151 .00)-44e--svc 60.0O00sw to 6 34.4 0.990 ©73.4 "287 4 20 2.2SWGR-S 180 ae”GONUN 160 . .CHUATHBA 58 70.0 -70.2 72.9 ff -73.036035.4 a46/23.0 114 36 9 36-86 683 bd 67 3.0 SwGRW 0.098 CROOKED = 28 )0.0 ff -35.0 354 . ,svc oo fes =aes] N sw -Pa9.8 1,000 Ly 0.98)0.955 418 .49 30.6 4 BETHEL BETHEL 110 Mook 130400405AKIACHUKTULUKSAKBETHELoumMy 3.0 Me 2S 3.™mSe 104.6 -104.2 |104.2 103.4 102.8 -102.5 102.4 -101.0 100.7 15 §68 2 $3 32 fos 84 |64 42 938 1.8 14 3a 9 4.0 349 34.9 5.8 22 Fs 32 474Onn m9 2S me 2 3 56 2&2 Fs "32 ava 1.097Orennn £°144A pee3 3.0 -15 48 47 3.6 2 1.040 0.0 24 OONLIN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 85 MW WITH SVG WED,AUG 13 2003 9:42 Bus -VOLTAGE (PUVANGLEBranch-MW/MVAR Equipment -MW/AMVAR 85.0 426 427 2708 10.7 98 28 2 63 0.981 16.0 0.970 -27.0 170180CROOKED 160DONLINGHUATHBA 85.3 86.0 ff 08.5 80.2 B -20.3 49 49 140 KALSKAG 08.2 16.6 53 44 os 0.048os38 92.3 24 0.989 64 150 ANIAK 91.0 a78 154 AN 0.0.\E_=fatsvc60.0 000 sw 1.0 13.8 0.99020.9 "3 77 A 4.000 og o 461 CHUATHBA 0.993 32.3 10 BETHEL 120110 ,130100et108AKIACHUKAKTULUKSAK DUMMY 30 fj 30 2S &.30 89 af 89 69 fh 64 248 79 799 77 16 B12 22 Fs 12 9 36 aye 47 9 63 60 9 57 16 ff 74 30 2S &3.0 12 S288 42 iit 421 .AKIAKoe16411.9R Bf 3.0 2S =30 os 04 12 &2 Fs AZ ou 8 o4 © < 164 §323?1,03 0.998@14.9R 8 1.037 '20.2 39 BETHEL 20.7 DONLAN MINE STUDIES BY EPS,JULY 2003NOMINELOAD,WITH SVC,50%SERIES COMPMON,AUG 11.2003 12:54 Bus -VOLTAGE (PUANGLEBranch-MW/MVAREquipment-MW/MVAR 170 CROOKED 58 00 ff 06 ry)14 B09 3.0 "45 aq 05 38 05 & 0.9821.040 {0.982 oo 14008 05 283 283 0.995 57 140 KALSKAG 120110 130BETHEL105AKIACHUKAKIAKTULUKSAK DUMMY 3.0 23.0 2S 3 22.9 66.6 68.6 |606 68.3 o7.8 67.6 672 86.7 60.5 15 B22 &2 $3 41933 32 i 32 23 19 45 ff 1.2 0.1 8-04 23.0 aS %e -22.9 2.2 2 rR 11 avi 421AKIACHUKAKIAK30.8Orn 230 2S &-22.0 za B $3 77 nSroo¢15.3 13 BETHEL 20 SWGR-S 140 KALSKAG 4.022 1.0082484,004 237 oS DONLAN MINE STUDIES BY EPS,JULY 2003 75 4.001MINELOAD55MWWITHSVC,50%SERIES COMP:14.0WED,AUG 13 2003 9:28 150 ANBus-VOLTAGE (PUVANGLEBranch-MW/MVAR -59.0Equipment-MW/MVAR 154O4He ')00 14.'sve 00 fio 6 ;QQ0_8 |0.990 74.7 -237 40 170 CROOKED 55.5 56.1 57.5 "234 ff 220 184 71 CROOKED oe . 05 74 . 125 0.932 0.885 0.904 ; AS :145 209 233 : 10BETHEL 440 :129 430BETHEL105AKIACHUKAKIAKTULUKSAK DUMMY 30 §288 2S &.208 F063 ©-06.1 ]96.1 65.5 [aso 24.8 e463 236 e364 15 9 37 s Q tf 1.9 9 57 62 |52 29 9 24 14 9 1.0 1.8 24 28.8 2§¥e -28.8 :' ; a7 Ej aS "1.9 411 140 . 2<Fa AKIACHUK Bax KALSKAG 468 v O17147R92883S-28.8 05 4 4 80 ar £2 $3 1.9 on & oy a oe 1 008 1.015 1,008 53 -/14.7R 13 1.032 ry 220 12 rrBETHEL266" os :=0S 268©)BAR 758 ----DONLAN MINE STUDIES BY EPS,JULY 2003 "13.8 0.996MINELOAD70MWWITHSVC,50%SERIES COMP 108C)-WED,AUG 132003 8:30 160 ANIAKBus-VOLTAGE (PUVANGLEBrandtMMVAR@}4 quipment -MW/MVAR oO O-20SWGR-S 40 190 170 |DONLUN Se NUIN CROOKED 68 6a 8 ss -70.2 707 §713 733123$2g <70.0 ff -25.0 35.4BETHEL4822$2 43 |43 <ES 16.2 143 9 138 67_ao R14 &ey E)3.0 SWGR-W 0.998 00 .26 )35.0 35.4=45 svc 45.9 ,;;swage 2K D2 Ot 08)00 05 0.937 71.040 .0.958 0.935 0.888004,000 270 81 406 247 10 420"BETHEL 410 AKIAK 130BETHELBETHEL105AKIACHUKTULUKSAK DUMMY 3.0 35.0 3s 3 Mo 104.8 -104.5 |104.5 -103.6 103.1 -102.7 102.3 +101.2 101.0 15 £56 Se rs 32 9 96 84 |64 42 9 38 1.8 945 .38 ff 40 35.0 3s ¥e 349 58 82 F3 3.2 ;4 121 140 AKIACHUK .AKIAK KALSKAG 472 15.4R 4 .35.0 34.9 os3S3* 167 58 82 $3 32 o © oun 1.008 1,004 63 16.1R 20.2 13-4 440 05 ps 05S4aa414.1R 92.5 --4DONLANMINESTUDIESBYEPS,JULY 2003 21.5 0.989MINELOAD85MWWITHSVC,50%SERIES COMP 64=}-|WED,AUG 13 2003 9:32 . 150 Bus -VOLTAGE (PUVANGLE ANAK Branch -MW/MVAR o2 ff(}+Equipment -MW/MVAR st ANIAK 0.990703348 ©]20 +SWGR-S 40 |180 4170DONLINweeCROOKED 58 3S 56 58 05.8 26.0 ff 266>06.0 §42.5 427 48 S258 43843 <7.3 40 9 35-wefes Sar $e 36 8 3.0 0.998 )0.0 ,2.6 '42.5 427 =45 sve 448 a 8 swHes ose $e 36)Lo 0.9340.945 33 10 420BETHEL110aK11 130BETHELBeet105AKACHUKAKTULUKSAK DUMMY C30 30 8%28 30 §220 3 $5 22.7 9 68.2 =68.1 |6a.077 9 672 47.1 9 666 66.2 9 659a1s=<2$-16 930 B23 1.0 9 66 55 j 6.5 4.7 [42 36 9 35 24 9 22 1.028 22.6 22.7 287 gs &3.0 22 Fs EY) eck 140306KALSKAG "aon 64.92282Sb."22.7 fos rr"3.0 22 £38 49 04 8 30.6 1.022 53 24.813.0 13 1.033 ry aeBETHEL273os =05 22.6©)8.0R 50.0 MINE LOAD 58 WW WITH ONLY SVC (ATDONLAN)= G --'MON,AUG 11 2003 13.09 og 1 150Bus-VOLTAGE (PUVANGLE ANIAK ' "169 Branch -MW/MVAR $85@-+]Equipment -MW/MVAR15.3 62 154 'G \-0 72SWGR-S 40 180 170 0.089DONLINCROOKED100111DONLUN'CHUATHBA 68 65.0 55.4 55.4%-66.0 87.0 [B -67.1=278 9 27.6 648{16.1 |10.0 07 B02 78 9 76-68 8 oS 6.0 30 71 , 18130SWGR-W 0.998 CHUATHBA"wc hsp 38-35 1,0001,006 .My 33.0 0.988 0.057 24 32.3 0.968 o7 10 BETHEL 120110 130oe108AKIACHUKAKIAKTULUKSAK DUMMY 358 2S 35.7 ff 107.1 -106.7 |106.7 -105.7 105.2 -104.7 ff 104.3 -103.0 ff 102.8s 142 &2 Fs 140332 317 |au 264 9 25.9 -23.4 ff 23.0 -16.3 ff 16.4 36.6 2S He 357 142 S aS BYR]114cQ3BAKIACHLK 121 140 KALSKAG 00.735.8 04 oF 142 os & 48.0 141Onn9800.985 0.965 sane KALSKAG 58 23.7R Ie 19.8 13.8 au 8 05 448(\-|22.4R wo 93.8 DONLIN MINE STUDIES BY EPS,JULY 2003 67 MINE LOAD 65 MW WITH ONLY 1 SVG (AT DONLIN)0808©)|WED,AUG 13 2003 0:45 40 Bus -VOLTAGE (PUVANGLE ARIAK-ANI169Branch-MW/MVAR 92.2(¢}-Equipment -MW/MVAR 153 144 0.0°tee V1C-sve 00 )sw fio &0.0 on.©20 ."18.4SWGR-S "0 470 0.894DONLINUNCROOKED127 CHUATHBA 5.8 25 2 58 9 58 85.0 85.4 06.2 9 268 90.2 JJ -003=.<Eo 425 427 .48 22 $8 as Jas a8 423 -38.4 19.0 &1908 .28 2 Sas 8 30 -48 30 SWGR-W 0.9481.000 23.1 0.933 19.8 0,885 174 CROOKED 0.987 36.8 0.854 30.4 10 BETHEL 110 120"1 130BETHEL109ve108AKIACHUKAKIAKTULUKSAK DUMMY -4.9 104.6 -104.2 j 104.2 103.4 102.9 +1025 102.1 -101.0 100.7 320s 24 ]84 42 9 38 4.6 44 3.8 ff 40 1 121AKIACHUKAKIAK -06.2 16.6 50 SWGR-YUK 1,004 -43.0 8 0s ,0.948 -05 368 0.970 -27.0 .92.3 OONLIN MINE STUDIES BY EPS,JULY 2003 "24 MINE LOAD 85 MW WITH SVC,COMBINEO CYCLE GENERATION 0.989WED,ALIG 13 2003 9:47 64 180Bus-VOLTAGE (PUVANGLEBranch-MW/MVAR 91.0Equipment-MW/MVAR 27.8 18 AN 13.6 0.990 43 20 SWGR-S 4 190CONLINDONLIN 853 425 427 10.7 98 ba 4 2 6.3 42.5 427 oe 29 2 5.3 0.9610,97541.008..oars -18.024 APPENDIX 3 DONLIN CREEK MINE PROJECT SYSTEM STUDIES Appendix 3 Short Circuit Oneline Diagram Short Circuit Results (Two Generation Alternatives) One-Line Diagram -OLV'1 Loadi8 6636 kVA ' SWGR Yukon "80 kv 722 rN 7.5 MVA Aniak sve o MW PAL Kalekag Line?136 kv Lineg LN aA T20 500 kVA Tuluksak Load 1000 kVA™Kalskag Load Aniak LoadTuluksakTi212.47 kv 12.47 kv 12.47 kv 136 kv 500 kVA Chuathbaluk Chuath.Load Loadio Loads Load13 138 kV T1é 12.47 kV Lines 330 kVA 625 kVA 1318 kVA 500 kVA Loadis5 Aldak Load 100 kVA -Akiak 1 .Line13 138 kV 9 12.47 kV 500 kVA Load7 ,Linea :510 kVA Crooked Creek Crooked Creek Load F : 138 kv T18 12.47 kV '. Akiachak Load 500 kVA Akiachak Loadi7 138 kv 'tT 12.47 kV Line14 678 KVA 500 kVA Line2 Load3 Donlan 596 kVA :138 kV Dummy 138 kV Tis T21 40 MVA 40 MVA Linel Donlan Mine Bethel 138 13.8 kv 138 kV load)foes MVA Donlan svc13.929 MVA :Mine toad BON 57.895 MVA T2 _a vA Bethel Sub 1 Bethel Sub 2 , 40 MVA ra AAAS 12,47 kV 4.16 kv 40 MvA bot ° Bethel 15/10/5 MVA13.8 kV |sS1 |ss2 ;, 7.5 MVA cBL 7.5 MVA an cae cas PAR PAS cas cas cre Coal2meenStasth Sty mec e m me .. . .7.5 MVA 7.5 MVA comp jon 1 Comb fon 2 |Combustion 3 Geni Gena ° SWGR West SWGR South 13.8 kV 13.8 kv 13.8 kV Load $51 45 Ma 45 Me a3 Load S82 80 kv 80 kV 3.332 MVA va 3.332 MVA Gen3 ens ,Loa'29 Load22 42 MW 5825 kVA 7195 KVA page 1 11:38:56 Aug 13,2003 Project File:Bethel-DonlanMine Project: Location: Contract: Enginecr: Filename: Nuvista Light &Power Co. Bethel -Donlin Mine 03-0094 Electric Power Systems,Inc. Bethel-DonlanMine ETAP Power Station 4.7.0C Study Case:Coal Fired Page: Date: SN: Revision: Config.: 1 08-13-2003 ELECPOWERS Base Normal Coal Fired Generation -All Units Online SHORT-CIRCUIT REPORT Fault at bus:Akiachak Nominal kV =138.000 Prefault Voltage =100.00 %of nominal bus kV Base kV =138.000 =100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus kA %VoltageatFrom Bus kA Symm.rms °.%Impedanceon 100 MVA base "ID ID Syrom.rms Va Vb Ve la 310 RI Xi RO XO Akiachak Total 1,903 0.00 102.46 106.48 1.743 1.743 1.54E+000 =2.19E+00L 3.87E+000 =2.78E+001 Dummy Akiachak 1.899 36.60 96.29 98.61 1.642 1.446 1.55E+000 2.20E+001 4.26E+000 =3.36E+001 Akiak Akiachak 0.004 1.92 101.41 105.44 0.093 0.271 1.02E+002 9.56E1003 3.33E+001 =1.78E+002 Akiachak Load Akiachak 0.000 64.55 62.11 105.00 0.009 0.027 *5.54E+002 =1.71E+003 #Indicates fault current contribution is from three-winding transforniers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer ETAP PowerStationProject:Nuvista Light &Power Co. Location:Bethel -Donlin Mine 4.7.0C Contract:03-0094 Enginecr:Electric Power Systems,Inc.Study Case:Coal Fired Filename:Bethel-DonlanMinc Page:2 Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:|Normal Coal Fired Generation -All Units Online Fault at bus:Akiachak Load NominalkV =12.470 Prefault Voltage =100.00 %ofnominal bus kV Base kV =13.094 =95.24%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus "Vv kA %Voltage at From Bus kA Symm.ms %Impedance on 100 MVA base ID ID From Bus Symm.rms Va Vb Ve la 310 Rl Xl RO XO Akiachak Load Total 0.00 0.231 0.00 173.21 173.21 0.000 0.000 $.56E+002 =-1.73E+003 Akiachak 5.56E+002 1,73E+003AkiachakLoad94.12 0.231 95.24 95.24 95.24 0.000 0,000 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer Project: Location: Contract: Engineer: Filename: Nuvista Light &Power Co. Bethel -Donlin Mine 03-0094 Electric Power Systems,Inc. Bethel-DonlanMine ETAP PowerStation 4.7.0C Study Case:Coal Fired Page: Date: SN: Revision: Config.: 3 08-13-2003 ELECPOWERS Base Normal Coal Fired Gencration -All Units Online Fault atbus:Akiak NominalkV =138.000 Prefault Voltage =100.00 %ofnominal bus kV Base kV =138.000 =100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus "%YV kA %Voltage at From Bus kA Symm.ms %Impedance on 100 MVA base ID ID From Bus Symm.rms Va Vb Ve la -310 Rl xl RO xo Akiak Total 0.00 1.703 0.00 104.01 107.96 1.515 1.515 1.93E+000 2.45E+001 4.88E+000 3.34E+001 Akiachak Akiak 10.57 |':1.698 14.81 101.25 104.68 1.413 1.217 1.94E+000 2.46E+001 5.65E+000 4.16E+001 Tuluksak Akiak 0.07 0.004 5.07 101.24 105.12 0.092 0.269 1.02E+002 9.56E+003 9 3.28E+001 -:1.87E+002 Akiak Load Akiak 0.00 0.000 65.45 63.05 105.00 0.009 0.028 *5.54E+002 --1.71E+003 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer ETAP PowerStation 4.7.0C Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engineer:Electric Power Systems,Inc.Study Case:Coal Fired Filename:-Bethel-DonlanMine Page:4 Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:|Normal Coal Fired Generation -All Units Online Fault at bus:Akiak Load Positive &Zero Sequence Impedances Looking into "From Bus" %Impedance on 100 MVA base RI XI RO x0 Nominal kV =12.470 Prefault Voltage =100.00 %of nominal bus kV Base kV =13.094 =95.24%of base kV Contribution 3-Phase Fault Line-To-Ground Fault From Bus To Bus *vV kA %Voltage at From Bus ID ip From Bus Symm.rms Va Vb Ve Akiak Load Total 0.00 0.230 0.00 173.21 -173.21 Akiak Akiak Load 93.99 0.230 95.24 95.24 95.24 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer 5.56E+002 -1.74E+003 5.56E+002 --1.74E+003 ETAP PowerStationProject:Nuvista Light&Power Co. Location:Bethel -Donlin Mine 4.7.0C Contract:03-0094 Engineer:-Electric Power Systems,Inc.Study Case:Coal Fired Filename:Bethel-DonlanMine Page:5 Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:|Normal Coal Fired Gencration -All Units Online Fault at bus:=Aniak Nominalk¥V =138.000 Prefault Voltage =100.00 %of nominal bus kV Base kV =138.000 =100.00 %of base kV Positive &Zero Sequence ImpedancesContribution3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus Vv kA %Voltage at From Bus kA Symm.ms %Impedanceon 100 MVA basc ID ID From Bus =Symm.rms Va Vb Ve la 310 RI Xi RO x0 Aniak Total 0.00 0.721 0.00 =«99.42 101.66 0.713 0.713 6.86E+000 5.77E+001 9.37E+000 =5.92E+001 Kalskag Aniak 17.15 0.716 19.22 98.33 100.49 0.570 0.293 6.94E+000 S5.80E+H00l 2.34E+001 1.44E+002 Chuathbaluk Aniak 0.03 0.002 $21 96.98 99.03 0.126 0.373 1.87E+002:1.82E+004-s1.7SE+001 -s1.13E+002 Aniak Load Aniak 0.00 0.000 61.63 60.27 105.00 0.015 0.045 *1.62E+002 9.36E+002 Aniak SVC Aniak 100.00 0.002 100.00 100.00 100.00 0.002 0.002 2.00E+002 2.00E+004 9 2.00E+002 2.00E+004 #Indi fault current it is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer ETAP PowerStation 4.7.0C Project:Nuvista Light &Power Co, Location:Bethel -Donlin Mince Contract:03-0094 Enginecr:Electric Power Systems,Inc.Study Case:Coal Fired Filename:Bethel-DonlanMine Page: Date: SN: Revision: Config.: 6 08-13-2003 ELECPOWERS Base Normal Coal Fired Gencration -All Units Online Fault at bus:Aniak Load NominalkV ==12.470 Prefault Voltage =100.00 %ofnominal bus kV Base kV =13.094 =95.24%of basc kV Positive &Zero Sequence Impedances Contribution 3-Phase Fauit Line-To-Ground Fault Looking into "From Bus" From Bus To Bus *YV kA %Voltage at From Bus .kA Symm.rms *Impedance on 100 MVA base ID ID From Bus Symm.ms Va Vb Ve la 310 RI Xl RO x0 Aniak Load Total 0.00 0.417 0.00 173.21 17321 0.000 0.000 1.69E+002 9.94E+002 Aniak Aniak Load 89.76 0.417 95.24 95.24 95.24 0.000 0.000 1.69E+002 =9.94E+002 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer ETAP PowerStationProject:Nuvista Light &Power Co.Page:7 Location:Bethel -Donlin Mine 4.7.0C :Date:08-13-2003 Contract:03-0094 SN:ELECPOWERS Engincer:Electric Power Systems,Inc.Study Case:Coal Fired Revision:Base Filename:Bethel-DonlanMine Config:|Normal Coal Fired Generation -All Units Online Fault at bus:Bethel Nominal kV =13.800 Prefault Voltage =100.00%of nominal bus kV Base kV =13.800 =100.00%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus %*vV kA %Voltage at From Bus kA Symm.rms %Impedance on 100 MVA base 1D ID From Bus Symm.rms Va Vb Ve Ia 310 RI Xl RO xo Bethel Total 0.00 57.557 0.00 100.01 100.01 57.542 57.542 1.51E-001 7.27E+000 =--1.52E-001 _7.27E+000 Bethel SS1 Bethel 0.00 0.000 57.74 57.74 100.00 0.000 ©0.000 Bethel SS2 Bethel 0.00 0.000 57.74 .,57.74 100.00 0.000 0.000 Bethel 138 Bethel 0.08 0.015 57.76 100.00 37.77 0.010 0.000 3.10E+002 =2.87E+004 Bethel 138 Bethel 0.08 0.015 57.76 100.00 57.77 0.010 0.000 3.10E+002-2.87E+004 Bethel 138 Bethel 0.08 0.015 57.76 100.00 S177 0.010 0.000 3.10E+002 2.87E+004 #Bethel Sub 2 Bethel 0.00 0.000 33.35 88.19 88.19 0.000 0.000 #Bethel Sub 1 Bethel 0.00 0.000 33.35 88.19 88.19 0.000 0.000 Gen8 Coal2 100.00 19.607 100.00 100.00 100.00 19.607 19.617 444E-001 2.13E+001 444E-001 2.13E+001 Gen3 :Combustion 1 100.00 18.300 100.00 100.00 100.00 18.300 18.309 4.76E-001 2.29E+001 4.76E-001 2.29E+001 Genl Coal 1 100.00 19.607 100.00 100.00 100.00 19.607 19.617 444E-001 2.13E+001 4.44E-001 =2.13E+001 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer ETAP PowerStationProject:Nuvista Light &Power Co. Location:Bethel -Donlin Mine 4.7.0C Contract:03-0094 Engineer:Electric Power Systems,Inc.Study Case:Coal Fired Filename:Bethel-DonlanMine Page:8 Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:|Normal Coal Fired Gencration -All Units Online Fault at bus:Bethel 138 NominalkV =138.000 Prefault Voltage =100.00 %of nominal bus kV Base kV =138.000 =100.00%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus *vV kA %VoitageatFrom Bus kA Symm.rms %Impedanceon 100 MV Abase ID ID From Bus Symm.rms Va Vb Ve la 310 RI xi RO XO Bethel 138 Total 0,00 2.836 0.00 91.18 91.79 3.418 3.418 4.25E-O0L 1.47E+001 3.06E-001 7.21E+000 Dummy Bethel 138 0.02 0.004 0.82 90.90 91.57 0.047 0.129 1.03E+002 9.57E+003 3.61E+001 =1.87E+002 Bethel Bethel 138 50.77 0.944 72.64 72.14 100.00 1.124 1.097 *1.28E+000 «4.43E+001 =8.24E-001 =2.25E+001 Bethel Bethel 138 50.77 0.944 72.64 72.14 100.00 1.124 1.097 *1.28E+000 «4.43E+001 =8.24E-001 =2.25E+001 Bethel Bethel 138 50.77 0.944 72.64 72.14 100.00 1.124 1.097 *1.28E+000 «=4.43E+001 =8.24E-001 2.25E+001 #Indi fault current it is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer Project: Location: Contract: Engineer: Filename: Nuvista Light &Power Co. Bethel -Donlin Mine 03-0094 Electric Power Systems,Inc. Bethel-DonlanMine ETAP PowerStation 4.7.0C Study Case:Coal Fired Page: Date: SN: Revision: Config.: 9 08-13-2003 ELECPOWERS Base Normal Coal Fired Generation -All Units Online Fault at bus:Bethel SS1 NominalkV =4.160 Prefault Voltage =100.00 %of nominal bus kV Base kV =4.160 ofbase kV Positive &Zero Sequence Impedances Contribution Line-To-Ground Fault Looking into "From Bus" From Bus To Bus %Voltage at From Bus %Impedance on 100 MVA base ID ID Va Vb Ve XI RO x0 Bethel SS1 Total 0.00 98.60 98.81 937E+001 6.08E+000 8.65E+001 Bethel Bethel SS1 95.95 100.00 96.17 9.37E+001 6.08E+000 8.65E+001 #=Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transfonner ETAP PowerStation 4.7.0C Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Enginecr:Electric Power Systems,Inc. Filename:Bethcl-DonlanMine Study Case:Coal Fired Page: Date: SN: Revision: Config.: 10 08-13-2003 ELECPOWERS Base Normal Coal Fired Gencration -All Units Online - Fault at bus:Bethel SS2 Positive &Zero Sequence Impedances Looking into "From Bus" Xi %Impedance on 100 MVA base RO xo NominalkV =4.160 Prefault Voltage =100.00 %of nominal bus kV Base kV =4.160 =100.00%of base kV Contribution 3-Phase Fault Line-To-Ground Fault From Bus To Bus "Vv kA %Voltage at From Bus ID .ID From Bus Symm.mms Va Vb Ve Bethel SS2 Toul 0.00 14.776 0.00 98.60 98.81 Bethel .Bethel SS2 92.27 14.776 -95.95 100.00 96.17 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer 6.23E+000 9.37E+001 6.23E+000 =9.37E+001 6.08E+000 8.65E+001 6.08E+000 =8.6SE+00!1 ETAP PowerStationProject:Nuvista Light &Power Co. Location:Bethel -Donlin Mine 4.7.4C Contract:03-0094 Engineer:Electric Power Systems,Inc.Study Case:Coal Fired Filename:Bethel-DonlinMine Page: Date: SN: Revision: Config.: 1 09-03-2003 ELECPOWERS Base Normal Coal Fired Generation -All Units Online SHORT-CIRCUIT REPORT. Fault at bus:Bethel Sub 1 NominalkV =12.470 Prefault Voltage =100.00 %of nominal bus kV Base kV =12.470 =100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus "Vv kA %Voltage at From Bus kA Symm.ms %Impedance on 100 MVA base ID ID From Bus Symm.rms Va Vb Ve la 310 RI Xl RO XO Bethel Sub |Total 0.00 3.373 0.00 173.21 173.21 0.000 0.000 1.07E+001 =1.37E+002 #Bethel Bethel Sub 1 , 94.71 1.928 100.00 100.00 100.00 0.000 *0.000 1.94E+001 =2.39E+002 Bethel Sub 1 71.02 1.445 100.00 100.00 100.00 0.000 0.000 2.40E+001 -3.19E+002#Bethel Sub 2 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer Project: Location: Contract: Engineer: Filename: Nuvista Light &Power Co. Bethel -Donlin Mine 03-0094 Electric Power Systems,Inc. Bethel-DonlinMine ETAP PowerStation 4.74C Study Case:Coal Fired Page: Date: SN: Revision: Config.: 2 09-03-2003 ELECPOWERS Base Normal Coal Fired Generation -All Units Online Fault at bus:Bethel Sub 2 Nomina kV =4.160 Prefault Voltage =100.00 %of nominal bus kV Base kV =s 4,160 =100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus kA %Voltage at From Bus kA Symm.ms %Impedance on 100 MVA base ID ID Symm.rms Va vb Ve la 310 Rl Xi RO x0 Bethel Sub 2 Total 19.188 0.00 17321 173.21 0.000 0.000 4.35E+000 =7.22E+001 #Bethel Bethel Sub 2 16.444 100.00 100.00 100.00 0.000 0.000 4.81E+000 8.43E+001 #Bethel Sub 1 Bethel Sub 2 2.744 100.00 100.00 100.00 0.000 0.000 4.02E+001 $.04E+002 #Indi fault current it is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y fe ETAP PowerStation . 4.7.0C Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engineer:Electric Power Systems,Inc.Study Case:Coal Fired Filename:Bethel-DonlanMine Page:11 Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:|Normal Coal Fired Gencration -All Units Online Fault at bus:Chuath.Load Nominal kV =12.470 Prefault Voltage =100.00 %of nominal bus kV Base kV =13.094 =95.24%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus *vV kA %Voltage at From Bus kA Symm.rms %Impedance on 100 MVA base ID ID From Bus Symm.rms Va Vb Ve la 310 Rl Xt RO x0 Chuath.Load Total 0.00 0.226 0.00 173.21 173.21 0.000 0.000 5.62E+002--1.78E+003 Chuathbaiuk 5.62E+002 1.78E+003Chuath,Load 92.06 0.226 95.24 95.24 95.24 0.000 0.000 #Indicates fault current contribution is from three-winding transformers *Indicates a zero scquence fault current contribution (310)from a grounded Delta-Y transformer Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engineer:Electric Power Systems,Inc. Filename:-_Bethel-DonlanMine ETAP PowerStation 4.7.0C Study Case:Coal Fired Page:12 Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:|Normal Coal Fired Gencration -All Units Online Fault at bus;Chuathbaluk NominalkV =138.000 Prefault Voltage =100.00 %of nominal bus kV Base kV =138.000 =100.00%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus "Vv kA %Voltage at From Bus kA Symm.ms %Impedanceon100MVAbase ID ID From Bus =Symm.rms Va Vb Ve la 310 RI Xt RO xo Chuathbaluk Total 0.00 0.662 0.00 97.59 99.58 0.681 0.681 7.61E+000 6.27E+001 8.98E+000 $.72E+001 Aniak Chuathbaluk 8.15 0.660 9.43 97.11 99.07 0.544 0.275 7.66E+000 6.29E+001 2.29E+001 =1.41E+002 Crooked Creek Chuathbaluk 0.12 0.002 22.61 89.72 90.35 0.130 0.384 1.86E+002 1.82E+004 =1.47E+001 =1.02E+002 Chuath.Load Chuathbaluk 0.00 0.000 60.37 59.16 105.00 0.007 0.022 *5.54E+002 1.71E+003 #=Indicates fault current contribution is from three-winding transformers ded Delta-Y*Indicates a zero sequence fault current contribution (310)from a gi Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engineer:Electric Power Systems,Inc. Filename:-_Bethel-DonlanMine "ETAP PowerStation Page:13 4.7.0C Date:08-13-2003 SN:ELECPOWERS Study Case:Coal Fired Revision:Base Config:|Normal Coal Fired Generation -All Units Online Fault atbus:Coal 1 NominalkV =13.800 Prefault Voltage =100.00 %of nominal bus kV Base kV =13,800 =100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fauit Looking into "From Bus" From Bus To Bus "Vv kA %Voltage at From Bus kA Symm.ms %Impedance on 100 MVA base ID ID From Bus =Sym.rms Va Vb Ve la 310 RI Xl RO X0 Coal 1 Total 0.00 57.557-0.00 100.01 100.01 57.542 57.542 L.SLE-001 9 7.27E+000)=-«1.52E-001 7.27E+000 Gel Coal 1 100.00 19.607 100.00 100.00 100.00 19.607 19.617 444E-001 9 2.13E+001 «=4.44E-001 2.13 +001 Bethel SS1 Bethel 0.00 0.000 57.74 57.74 100.00 0.000 0.000 Bethel SS2 Bethel 0.00 0.000 57.74 57.74 100.00 9.000 0.000 Bethel 138 Bethel 0.08 0.015 57.76 100.00 57.77 0.010 0.000 3.10E+002 =--.2.87E+004 Bethel 138 Bethel 0.08 0.015 57.76 100.00 57.77 0.010 0.000 3.10E+002 -2.87E+004 Bethel 138 Bethel 0.08 0.015 57.76 100.00 57.77 0.010 0.000 3.10E+002 2.87E+004 #Bethel Sub 2 Bethel 0.00 0.000 33.35 88.19 88.19 0.000 0.000 #Bethel Sub t Bethel 0.00 0.000 3335 88.19 88.19 0.000 0.000 Gen8 Coal2 100.00 19.607 100.00 100.00 100.00 19.607 19.617 4.44E-001 2.13E+001 4.44E-001 =2.13E+001 Gen3 Combustion |100.00 18.300 100.00 100.00 100.00 18.300 18.309 4.76E-O01 2.29E+001 4.76E-001 2.29E+001 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current ibution (310)from a gi ded Delts-Y f, Project: Location: Contract: Engincer: Filename: Nuvista Light &Power Co. Bethel -Donlin Mine 03-0094 Electric Power Systems,Inc. Bethel-DonlanMine -ETAP PowerStation Page:14 4.7.06 Date:08-13-2003 SN:ELECPOWERS Study Case:Coal Fired Revision:Base Config.:Normal Coal Fired Generation -All Units Online Fault at bus:Combustion 1! NominalkV ==13.800 Prefault Voltage =100.00 %of nominal bus kV Base kV =13.800 =100.00 %of basekV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus "VY kA %Voltage at From Bus kA Symm.nns %Impedance on 100 MVA base 1D ID From Bus =Symm.rms Va Vb Ve la 310 RI Xi RO x0 Combustion |Total 0.00 37.557 0.00 100.01 100.01 57.542 57.542 1.51E-001 7.27E+000 =-:1.52E-001 _7.27E+000 Gen3 Combustion |100.00 18.300 100.00 100.00 100.00 18.300 18.309 4,.76E-001 2.29E+001 =4.76E-001 =.2.29E+001 Bethel SS1 Bethel 0.00 0.000 57.74 57.74 100.00 0.000 0.000 Bethel SS2 Bethel 0.00 0.000 57.74 57.74 100.00 0.000 0.000 Bethel 138 Bethel 0.08 0.015 57.76 100.00 57.77 0.010 0.000 3.10E+002 =2.87E+004 Bethet 138 Bethel 0.08 0.015 57.76 100.00 57.77 0.010 0.000 3.10E+002 =2.87E+004 Bethel 138 Bethel 0.08 0.015 57.76 100.00 57.77 0.010 0.000 3.10E+002 =2.87E+004 #Bethel Sub 2 Bethel 0.00 0.000 33.35 88.19 88.19 0.000 0.000 #Bethel Sub |Bethel 0.00 0.000 33.35 88.19 88.19 9.000 0.000 Gen8 Coal2 100.00 19.607 100.00 100.00 100.00 19.607 '19.617 4.44E-001 2.13E+001 4.44E-001 =2.13E+001 Genl Coal t 100.00 19.607 100.00 100.00 100.00 19.607 19.617 4.44E-001 =2.13E+001 4.44E-001 2.13E+001 #Indicates fault current ibution is from three-winding fe *Indicates a zero sequence fault current it (310)from a grounded Delta-Y fe Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engineer:Electric Power Systems,Inc. Filename:Bethel-DonlanMine 4.7.0C ETAP PowerStation Study Case:Coal Fired Page: Date: SN: Revision: Config.: 15 08-13-2003 ELECPOWERS Base Normal Coal Fired Gencration -All Units Online Fault atbus:Crooked Creek Nominal kV =138.000 Prefault Voltage =100.00 %of nominal bus kV Base kV =138.000 =100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus "VY kA %VoltageatFrom Bus kA Symm.ms %impedanceon 100 MVA base ID ID From Bus Symm.ms Va Vb Ve l 310 RI X1 RO x0 Crooked Creck Total 0.00 *0.494 0.00 88.92 88.66 0.644 0.644 1.08E+001 8.41E+001 3.04E+000 2.53E+001 Chuathbaluk Crooked Creek 25.55 0.491 26.86 90.25 90.61 0.454 0.079 1.09E+001 8.45E+00!3.41E+001 2.03E+002 Donlan Crooked Creek 0.03 0.002 8.12 87.80 86.93 0.187 0.556 1.83E+002 1.82E+004 3.24E+000-2.93E+001 Crooked Creek Load Crooked Creek 0.00 0.000 53.75 53.90 105.00 0.003 0.009 *$.54E+002 =1.71E+003 #Indicates fault current contribution is from three-winding transformers *Indicates 2 zero sequence fault current contribution (310)from a grounded Delta-Y transformer ETAP PowerStationProject:Nuvista Light &Power Co. Location:Bethel -Donlin Mine 4.7.0€ Contract:03-0094 Engineer:Electric Power Systems,Inc.Study Case:Coal Fired Filename:Becthel-DonlanMine Page:16 Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:Normal Coal Fired Generation -All Units Online Fault at bus:Crooked Creek Load NominalkV ==12.470 Prefault Voltage =100.00%of nominal bus kV Base kV =13.094 =95.24%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus” From Bus To Bus %YV kA %Voltage at From Bus kA Symm.ms %Impedanceon 100 MVA base ID ID From Bus =Symm.ms Va Vb Ve la 310 Ri XI RO xo Crooked Creek Load Total 0.00 0.223 0.00 173.21 173.21 0.000 0.000 5.65E+002 --1.80E+003 Crooked Creek Crooked Creek Load 91.02 0.223 95.24 95.24 95.24 0.000 0.000 5.65E+002 =:1.80E+003 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Deita-Y transformer Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Enginecr:Electric Power Systems,Inc. Filename:-_Bethel-DonlanMine ETAP PowerStation 4.7.0C Study Case:Coal Fired Page:17 Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:|Normal Coal Fired Generation -All Units Online Fault at bus:Donlan NominalkV =138.000 Prefault Voltage =100.00 %of nominal bus kV Base kV =138.000 =100.00%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus *v kA %Voltage at From Bus kA Symm.ms %Impedance on 100 MVA base 1D ID From Bus Symm.ms Va Vb Ve fa 310 RI Xi RO XO Donian Total 0.00 0.464 0.00 87.67 36.34 0.658 0.658 1.16E+001 8.94E+001 4.70E-001 =-:1.07E+001 Crooked Creek Donlan 5.97 0.462 6.14 87.80 86.71 0.448 0.034 L.I7E+001 8.98E+00l 3.62E+001 2.00E+002 Donilan Mine Donlan 0.07 0.001 52.35 53.15 105.00 0.105 0.312 *3.64E+002 3.63E+004 =8.24E-001 9 2.25E+001 Donlan Mine Donlan 0.07 0.001 52.35 53.15 105.00 0.105 0.312 *3.64E+002 -3.63E+004 «=8.24E-001 =2.25E+001 #Indicates fault current contribution is from three-winding transformers ded Delta-Y f,*Indicates a zero sequence fault current contribution (310)from a g Project: Location: Contract: Engineer: Filename: Nuvista Light &Power Co. Bethel -Donlin Mine 03-0094 Electric Power Systems,Inc. Bethel-DonlanMine ETAP PowerStation Page: 4.7.0C Date: SN: Study Case:Coal Fired Revision: Config.: 18 08-13-2003 ELECPOWERS Base Normal Coal Fired Generation -All Units Online Fault at bus:Donlan Mine Nominal kV =13.800 Prefault Voltage =100.00 %of nominal bus kV Base kV =14.490 =95.24%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus *%V kA %VoltageaFrom Bus kA Symm.rms %Impedanceon 100 MVA base ID ID From Bus =Symm.ms Va Vb Ve la 310 Rl XL RO x0 Donian Mine Total 0.00 3.750 0.00 171.87 171.69 0.062 0.062 1.20E+001 1.00E+002 =-1.81E+002 1.81 +004 Donian Donlan Mine 10.53 1.864 94.59 95.24 94.49 0.021 0.000 2.42E+001 -2.02E+002 Donlan Donlan Mine 10.53 1.864 94.59 95.24 94.49 0.021 0.000 2.42E+001 =2.02E+002 Donlan SVC Donlan Mine 100.00 0.021 100.00 100.00 100.00 0.021 0.062 1.81E+002 1.81E+004 1.81E+002 1.81E+004 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engineer:Electric Power Systems,Inc. Filename:-_-Bethel-DonlanMine ETAP PowerStation 4.7,0C Study Case:Coal Fired Page:19 Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:Normal Coal Fired Gencration -All Units Online Fault atbus:Kalskag NominalkV =138.000 Prefault Voltage =100.00 %of nominal bus kV Base kV =138.000 =100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus "KV kA %Voltage at From Bus kA Symm.ms %Impedanceon100MVAbase ID ID From Bus Symm.mns Va Vb Ve la 310 RI Xl RO x0 Kalskag Total 0.00 0.869 0.00 103.05 105.81 0.796 0.796 5.40E+000 4.79E+001 9.71E+000 6.06E+001 Tuluksak Kalskag 34.85 0.864 39.89 99.11 10131 0.665 0.409 5.45E+000 4.81E+001 1.82E+001 =1.18E+002 Aniak Kalskag O11 0.004 9.78 98.14 100.55 0.123 0.360 _9.80E+001 9.53E+003 2.09E+001 1.34E+002 Kalskag Load Kalskag 0.00 0.000 64.14 62.47 105.00 0.009 0.027 *$.54E+002 -1.71E+003 #Indicates fault curren contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a gr ded Delta-Y ETAP PowerStationProject:Nuvista Light &Power Co. Location:Bethel -Donlin Mine 4.7.0C Contract:03-0094 Engineer:Electric Power Systems,Inc.Study Case:Coal Fired Filename:-Bethe]-DonlanMine Page:20 Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:|Normal Coal Fired Gencration -All Units Online Fault at bus:Kaiskag Load NominalkV =12.470 Prefault Voltage =100.00 %of nominal bus kV Base kV =13.094 =95.24%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fauit Looking into "From Bus" From Bus To Bus wV kA %Voltage at From Bus kA Symm.rns %Impedance on 100 MVA base ID ID From Bus Symm.mms Va vb Ve la 310 Rl Xi RO x0 Kalskag Load Total 0.00 0.227 0.00 173.21 173.21 0.000 0.000 5.60E+002 1.76E+003 Kalskag Kalskag Load 92.80 0.227 95.24 95.24 95.24 0.000 0.000 5.60E+002 =-1.76E+003 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Enginecr:Electric Power Systems,Inc. Filename:-Bethel-DonlanMine ETAP PowerStation 4.7.0C Study Case:Coal Fired Page:21 .Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:Normal Coal Fired Generation -All Units Online ' Fault at bus:Tuluksak NominalkV =138.000 Prefault Voltage =100.00 %of nominal bus kV Base kV =138.000 =100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus "VY kA %Voltage at From Bus kA Symm.ms %Impedanceon100MVAbase ID ID From Bus Symm.rms Va Vb Ve la 310 Rl x!RO x0 Tutuksak Total 0.00 1.330 0.00 105.77 109.31 1.148 +1.148 2.94E+000 3.13E+001 7.12E+000 =4.59E+001 Akiak Tuluksak 21.97 1.326 28.09 100.97 103.82 1.039 0.827 2.96E+000 3.14E+00L 9.31E+000 6.38E+001 Kalskag Tuluksak 0.18 0.004 13.34 98.70 101.88 0.100 0291 1.01E+002 9.55E+003 2.96E+001 --:1.81E+002 Tuluksak Load Tuluksak 0.00 0.000 66.27 64.12 105.00 0.010 0.030 *5.54E+002 1.71 E+003 #Indi fault current it is from three-winding transformers £,*Indicates a zero sequence fault current contribution 310)from a gi ded Delta-Y ETAP PowerStationProject:Nuvista Light &Power Co. Location:Bethel -Donlin Mine 47.0C Contract:03-0094 Engincer:Electric Power Systems,Inc.Study Case:Coal Fired Filename:-_Bethel-DonlanMine Page:22 Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:Normal Coal Fired Generation -Ali Units Online Fault at bus:Tuluksak Load Nominal kV =12.470 Prefault Voltage =100.00%of nominal bus kV Base kV =13.094 =95.24%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus *vV kA %VohagestFrom Bus kA Symm.mms %impedanceon 100 MVA base ID iD From Bus Symm.rms Va Vb Ve la 310 RI X1 RO x0 TuluksakLoad Total 0.00 0.229 0.00 .173.21 17321 0.000 0.000 5.57E+002--1.74E+003 Tuluksak Tuluksak Load 93.64 0.229 95.24 95.24 95.24 0.000 0.000 5.57E+002 =1.74E+003 #Indicates fault current contribution is from three-winding transformers *Indicates s zero sequence fault current contribution (310)from a grounded Delta-Y transformer . Project: Location: Contract: Engincer: Filename: Nuvista Light &Power Co. Bethel -Donlin Mine 03-0094 Electric Power Systems,Inc. Bethel-DonlanMine ETAP PowerStation 4.7.0C Study Case:CombineCycle Page: Date: SN: Revision: Config.: 1 08-13-2003 ELECPOWERS Base Normal Combined Cycle Generation -All Units Online SHORT-CIRCUIT REPORT Fault at bus:Akiachak Nominal kV =138.000 Prefault Voltage =100.00 %of nominal bus kV Base kV =138.000 =100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus kA %Voltage at From Bus kA Symm.rms %Impedance on 100 MVA base iD ID Symm.rms Va Vb Ve la 310 Ri Xl RO x0 Akiachak Total 1.985 0.00 103.38 107.27 1.789 1.789 1.53E+000 2.10E+001 3.87E+000 2.78E+001 Dummy Akiachak 1.981 37.55 96.88 99.09 1.684 1.484 1.53E+000 2.11E+001 4.26£+000 3.36E+001 Akiak Akiachak 0.004 1.96 102.28 106.19 0.095 0.278 1.02E+002 -9.56E+003 3.33E+001 =1.78E+002 Akiachak Load Akiachak 0.000 65.03 -62.67 105.00 0.009 0.028 *;5.54E+002 -_-1.71E+003 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y fe Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engineer:Electric Power Systems,Inc. Filename:-Bethel-DonianMine ETAP PowerStation 4.7.0C Study Casc:CombineCycle Page: Date: SN: Revision: Config.: 2 08-13-2003 ELECPOWERS Base Normal Combined Cycle Generation -All Units Online Fault at bus:Akiachak Load Nominal kV ==12.470 Prefault Voltage =100.00 %of nominal bus kV Base kV ==13.094 =95.24%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus "Vv kA %Voltage at From Bus kA Symm.mms %Impedance on 100 MVA base ID ID _From Bus =Symm.rms Va Vb Ve la 310 RI Xi RO x0 Akiachak Load Total 0.231 0.00 173.21 173.21 0.000 0.000 $.56E+002 =-1.73E+003 Akiachak Akiachak Load 94.17 0.231 95.24 95.24 95.24 0.000 0.000 5.56E+002 =1.73E+003 #Indi fault current it is from three-windi *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer Project:Nuvista Light &Power Co. Location:Bethel -Donfin Mine Contract:03-0094 Engincer:Electric Power Systems,Inc. Fil Bethel-Di lanMine ETAP PowerStation 4.7.0C Study Case:CombineCycle Page: Date: SN: Revision: Config.: 3 08-13-2003 ELECPOWERS Base Normal Combined Cycle Generation -All Units Online Fault at bus:Akiak *Indicates a zero sequence fault current contribution (310)from a g ded Delta-Y fe Nominal kV =138.000 Prefauit Voltage =100.00 %of nominal bus kV "Base kV =138.000 =100.00%ofbasekV | Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus *%V kA %Voltage at From Bus kA Symm.rms %Impedanceon 100 MVA base ID ID From Bus Symm.rms Va Vb Ve la 310 RI XI RO XO Akiak Total 0.00 1.768 0.00 104.88 108.69 1.549 1549 L.91E+000 2.36E+00L 4.88E+000 3.34E+001 Akiachak Akiak :10.98 1.764 15.14 102.00 105.30 1.445 1.245 1.92E+000 2.36E+001 '5.65E+000 4.16E+001 Tuluksak Akiak 0.07 0.004 5.18 101.99 105.75 0.094 0.275 1.02E+002 9.S6E+003 3.28E+001 =:1.87E+002 Akiak Load Akiak 9.00 0.000 65.89 63.58 105.00 0.010 0.029 *5.54E+002 --1.71E+003 #Indi fault current ibution is from three-winding transformers ETAP PowerStation 4.7.0C Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engineer:Electric Power Systems,Inc. Filename:Bethel-DonianMine Study Case:CombineCycie Page:4 Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:|Normal Combined Cycle Generation -All Units Online Fault at bus:Akiak Load Positive &Zero Sequence Impedances Looking into "From Bus" %Impedance on 100 MVA base RI xl RO xo Nominal kV =12.470 Prefault Voltage =100.00 %of nominal bus kV Base kV =13.094 =95.24%of base kV: Contribution 3-Phase Fault Line-To-Ground Fault From Bus To Bus "VY kA %Voltage at From Bus ID ID”From Bus =Symm.ms Va Vb Ve Akiak Load Total 0.00 0.230 0.00 1173.21 173.21 Akiak Akiak Load 94.03 0.230 -95.24 95.24 95.24 #=Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer : 5.56E+002 --1.74E+003 5.56E+002 =-1.74E+003 Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engincer:Electric Power Systems,Inc. Filename:Bethel-DonlanMine ETAP Power Station 4.7.0C Study Case:CombineCycle Page: Date: SN: Revision: Config.: 5 08-13-2003 ELECPOWERS Base Normal Combined Cycle Generation -All Units Online Fault atbus:Aniak Nominal kV =138.000 Prefault Voltage =100.00 %of nominal bus kV Base kV =138.000 =100.00%of basckV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus "Vv kA %Voltage at From Bus kA Symm.ms %Impedance on 100 MVA base ID ID From Bus Symm.ms Va Vb Ve la 310 Rl Xl RO x0 Aniak Total 0.00 0.732 0.00 99.73 101.88 0.720 0.720 6.84E+000 5.67E+001 9.37E+000 5.92E+001 Kalskag Aniak 17.42 0.728 19.42 98.62 100.70 0.576 0.296 6.92E+000 5.71E+001 2.34E+001 1.44E+002 Chuathbaluk Aniak 0.03 0.002 5.27 97.24 99.21 0.127 0.377 1.87E+002 -1.82E+004 =1.75E+001 =1.13E+002 Aniak Load Aniak 0.00 0.000 61.76 60.46 105.00 0.015 0.045 *1.62E+002 =9.36E+002 Aniak SVC Aniak 100.00 0.002 100.00 100.00 100.00 0.002 0.002 2.00E+002 2.00E+004 2.00E+002 2.00E+004 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer Project:Nuvista Light &Power Co.ETAP PowerStation Location:Bethel -Donlin Mine 4.7.0C Contract:03-0094 Engincer:Electric Power Systems,Inc. Filename:Bethel-DonlanMine Study Case:CombineCycle Page: Date: SN: Revision: Config.: 6 08-13-2003 ELECPOWERS Base Normal Combined Cycle G ion -All Units Online Fault at bus:Aniak Load NominalkV =12.470 Prefault Voltage =100.00 %of nominal bus kV Base kV =13.094 95.24%of base kV Positive &Zero Sequence Impedances Looking inte "From Bus" Xl %Impedanceon 100 MVA base RO x0 Contribution 3-Phase Fault Line-To-Ground Fault From Bus 'To Bus %V kA %Voltage at From Bus ID ID From Bus =Symm.mms Va Vb Ve Aniak Load Total 0.00 0417 0.00 173.21 173.21 Aniak Aniak Load 89.84 0417 95.24 95.24 95.24 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer 9.93E+002 9.93E+002 Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engineer:Electric Power Systems,Inc. Filename:Bethel-DonlanMine ETAP PowerStation 4.7.0C Study Case:CombineCycle Page: Date: SN: Revision: Config.: 7 08-13-2003 ELECPOWERS Base Normal Combined Cycle Generation -All Units Online Fault at bus:Bethel Nominal kV =13.800 Prefault Voltage =100.00 %of nominal bus kV Base kV =13.800 =100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus *V kA %Voltage at From Bus kA Symm.ms %Impedance on 100 MVA base ID ID From Bus Symm.rms Va Vb Ve la 310 R1 Xi RO x0 Bethel Total 0.00 65.83:5 0.00 100.01 100.01 65.821 65.821 1.32E-001 6.35E+000 1.32E-001 6.36E+000 Bethel SSI Bethel 0.00 0.000 57.74 57.74 100.00 0.000 0.000 Bethel SS2 Bethel 0.00 0.000 57.74 57.74 100.00 0.000 0.000 Bethel 138 Bethel :0.08 0.015 57.76 100.00 57.77 0.010 0.000 3.10E+002 2.87E+004 Bethel 138 Bethel 0.08 0.015 57.76 100.00 37.77 0.010 0.000 3.10E+002 2.87E+004 Bethel 138 Bethel 0.08 0.015 57.76 100.00 57.77 0.010 0.000 3.10E+002 2.87E+004 #Bethel Sub 2 Bethel 0.00 0.000 33.35 88.19 88.19 0.000 0.000 #Bethel Sub 1 Bethel 0.00 0.000 33.35 88.19 88.19 9.000 0.000 Gen9 Coal3 »100.00 10.893 100.00 100.00 100.00 10.893 10.898 8.00E-001 3.84E+001 8.00E-001 3.84E+001 Gen6 Combustion 3 100.00 18.300 100.00 100.00 100.00 18.300 18.308 4.76E-001 229E+001 4.76E-001 2.29E+001 GenS Combustion 2 100.00 18.300 100.00 100.00 100.00 18.300 18.308 4.76E-001 2.29E+001 4.76E-001 2.29E+001 Gen3 Combustion 1 100.00 18.300 100.00 100.00 100.00 18.300 18.308 4.76E-001 2.29E+001 4.76E-001 2.29E+001 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer ETAP PowerStationProject:Nuvista Light &Power Co. Location:Bethel -Donlin Mine 4.7.0C Contract:03-0094 Engineer:Electric Power Systems,Inc.Study Case:CombineCycle Filename:-Bethel-DonlanMine Page:8 , Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:|Normal Combined Cycle Generation -All Units Online Fault at bus:Bethel 138 Nominal kV =138.000 Prefault Voltage =100.00 %of nominal bus kV Base kV 138.000 100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault .Line-To-Ground Fault Looking into "From Bus" From Bus To Bus *V kA %Voltage at From Bus kA Symm.ms %Impedance on 100 MVA base ID ID From Bus Symm.rms Va Vb Ve la 310 RI Xi RO XO Bethel 138 Total 0.00 3.023 0.00 91.69 92.30 3.597 3.597 4,06E-001 1.38E+001 3.066-001 =7.21E+000 Dummy Bethel 138 0.02 0.004 0.86 91.38 92.05 0.049 0.136 1.03E+002 9.57E+003 3.61E+001 1.87E+002 Bethel Bethel 138 54.12 1.006 74.63 74.46 100.00 1.183 1.154 *1.22E+000 4.16E+001 =8.24E-001 _2.25E+001 Bethel Bethel 138 54.12 1.006 74.63 74.16 100.00 1.183 1.154 *1.22E+000 4.16E+001 9 8.24E-001 =.2.2SE+001 Bethel Bethel 138 54.12 1.006 74.63 74.16 100.00 1.183 1.154 *1.22E+000 «4.16E+001 =8.24E-001 =2.25E+001 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engincer:Electric Power Systems,Inc. Filename:-Bethel-DonlanMine ETAP PowerStation - Page:9 4.7.06 Date:08-13-2003 SN:ELECPOWERS Study Case:CombineCycle Revision:Base Config:|Normal Combined Cycle Generation -All Units Online Fault at bus:Bethel SS1 NominalkV =4,160 Prefault Voltage 100.00 %of nominal bus kV Base kV =4.160 .=100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fauit Looking into "From Bus" From Bus To Bus "Vv kA %Voltage at From Bus kA Symm.rms %Impedance on 100 MVA base ID ID From Bus =Symm.mms Va Vb Ve lz 310 R1 Xi RO Xo Bethe!SS1 Total 0.00 14.921 0.00 98.76 98.95 15.268 15.268 621E+000 9.28E+001 6.08E+000 8.65E+00! Bethel Bethel SS1 93.18 14.921 96.43 100.00 96.63 15.268 15.268 *6.21E+000 9.28E+001 6.08E+000 8.65E+001 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Deita-Y transfc Project:Nuvista Light &Power Co.ETAP PowerStation , Page:10 Location:Bethel -Donlin Mine 4.7.0C Date:08-13-2003 Contract:03-0094 SN:ELECPOWERS Engincer:Electric Power Systems,Inc.Study Case:CombineCycle Revision:Base Filename:_-_Bethel-DonlanMine Config.:Normal Combined Cycle G ion -All Units Online Fault at bus:Bethel SS2 NominalkV =4.160 Prefault Voltage =100.00 %of nominal bus kV Base kV =4.160 =100.00 %of basekV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus ;"Vv kA %Voltage at From Bus kA Symm.ms %Impedance on 100 MVA base ID ID From Bus =Symm.rms va Vb Ve la 310 Rl Xl RO X0 Bethe]SS2 Total 0.00 14.921 0.00 98.76 98.95 15.268 15.268 6.21E+000 9.28E+001 6.08E+000 8.65E+001 Bethel Bethel SS2 93.18 14.921 96.43 100.00 96.63 15.268 15.268 *6.21E+000 9.28E+001 6.08E+000 8.65E+001 #Indi fault current ib is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y fe ETAP PowerStation .Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine 4.7.4C Contract:03-0094 Enginecr:Electric Power Systems,Inc.Study Case:CombineCycle Filename:Bethel-DonlinMinc Page:1 Date:09-03-2003 SN:ELECPOWERS Revision:Base Config.:Normal Combined Cycle Generation -All Units Online SHORT-CIRCUIT REPORT. Fault at bus:Bethel Sub t Nominal kV =12.470 Prefault Voltage =100.00 %of nominal bus kV Base kV =12.470 =100.00%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus” From Bus To Bus "VY kA %Voltage at From Bus kA Symm.rns %Impedance on 100 MVA base ID ID From Bus Symm.rms Va Vb Ve Is 310 RI Xi RO XO Bethel Sub 1 Total 0.00 3.396 0.00 173.21 173.21 0.000 0.000 1.07E+001 =1.36E+002 #Bethel Bethel Sub f 95.35 1.941 100.00 100.00 100.00 0.000 0.000 1.93E+001 2.38E+002 #Bethel Sub 2 Bethel Sub 1 71.49 1.455 100.00 100.00 100.00 0.000 0.000 2.40E+001 3.1 7E+002 #Indicates fault current contribution is from three-winding transformers 9 *Indicates a zero sequence fault current contribution (310)from a g ded Delta-Y former Project:Nuvista Light &Power Co.ETAP PowerStation Page:2 Location:Bethel -Donlin Mine 4.7.4C Date:09-03-2003 Contract:03-0094 SN:ELECPOWERS Enginecr:Electric Power Systems,Inc.Study Case:CombineCycle Revision:Base Filename:-_Bethe!-DonlinMine Config.|Normal Combined Cycle Generation -All Units Online Fault at bus:Bethel Sub 2 Nominal kV =4.160 Prefault Voltage =100.00%of nominal bus kV Base kV =4,160 =100.00%of basekV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus "Vv kA %Voltage at From Bus kA Symm.rms %Impedance on 100 MVA base ID ID From Bus =Symm.rms Va Vb Ve la 310 RL Xl RO x0 Bethel Sub 2 Total 0.00 19.434 0.00 173.21 173.21 0.000 0.000 4.33E+000 =7.13E+001 #Bethel Bethel Sub 2 .OL.Ail 16.655 100.00 100.00 100.00 0.000 0.000 4.79E+000 8.32E+001 #Bethel Sub 1 Bethel Sub 2 45.55 2.779 100.00 100.00 100.00 0.000 0.000 4.00E+001 4.98E+002 ibution is from three-winding fe#Indi fault current ®Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer Project:Nuvista Light &Power Co.-ETAP PowerStation Location:Bethel -Donlin Mine 4.7.06 Contract:03-0094 Engineer:Elcctric Power Systems,Inc.Study Case:CombineCycle Filename:Bethel-DonlanMine Page: Date: SN: Revision: Config.: 1 08-13-2003 ELECPOWERS Base Normal Combined Cycle Generation -All Units Online Fault at bus:Chuath.Load Positive &Zero Sequence Impedances Looking into "From Bus" Xi %Impedance on 100 MVA base RO xo Nominal kV ==12.470 Prefault Voltage =100.00 %of nominal bus kV Base kV =13.094 =95.24%of base kV Contribution 3-Phase Fault Line-To-Ground Fault From Bus To Bus "YV kA %Voltage at From Bus ID iD From Bus =Symm.ms Va Vb Ve Chuath.Load Total 0.00 0.226 0.00 173.21 173.21 Chuathbaluk Chuath.Load 92.11 0.226 95.24 95.24 95.24 #=Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer 1.77E+003 1.77E+003 Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engincer:Electric Power Systems,Inc. Filename:-Bethcel-DonlanMine ETAP PowerStation 4.7.0C Study Case:CombineCycle Page:12 Date:08-13-2003 SN:ELECPOWERS Revision:Base Config.:Normal Combined Cycle Generation -All Units Online Fault at bus;Chuathbaluk NominalkV =138.000 Prefault Voitage =100.00 %of nominal bus kV Base kV =138.000 =100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus ”*vV kA %Voltage at From Bus kA Symm.rms %Impedance on 100 MVA base ID ID From Bus Symm.rms Va Vb Ve la 310 Ri Xl RO XO Chuathbaluk Total 0.00 0.672 0.00 97.85 99.76 0.688 0.688 7.59E+000 6.18E+001 8.98E+000 5.72E+001 Aniak Chuathbaluk 827 0.669 9.52 97.37 99.25 0.550 0.278 7.64E+000 9 6.20E+001 «=2.29E+001 =1.41 E+002 Crooked Creck Chuathbaluk 0.12 0.002 22.83 89.81 90.40 0.131 0.388 1.86E+002 --:1.82E+004 --1.47E+001 -1.02E+002 Chuath.Load Chuathbaluk 0.00 0.000 60.48 $9.32 105.00 0.007 0.022 *5.54E+002 1.71 E+003 #Indi fault current ibution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engincer:-Electric Power Systems,Inc. Filename:Bethel-DonlanMine ETAP PowerStation 4,7.0C Study Case:CombineCycle Page: Date: SN: Revision: Config.: 13 08-13-2003 ELECPOWERS Base Normal Combined Cycle Generation -All Units Online Fault at bus:Coal 1 Nominal kV =13.800 Prefault Voltage =100.00 %of nominal bus kV Base kV =13.800 =100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus "Vv kA %Voltage at From Bus kA Symm.rms %Impedance on 100 MVA base ID ID From Bus Symm.rms Va Vb Ve la 310 RI Xi RO x0 Coal 1 Total 0.00 65.835 0.00 100.01 100.01 65.821 65.821 1.32E-001 6.35E+000 1.32E-001 6.36E+000 Bethel SS1 Bethel 0.00 0.000 57.74 57.74 100.00 0.000 0.000 Bethel SS2 Bethel 0.00 0.000 57.74 57.74 100.00 9.000 0.000 Bethel 138 Bethel 0.08 0.015 57.16 100.00 57.77 0.010 0.000 3.10E+002 2.87E+004 Bethel 138 Bethel 0.08 0.015 57.76 100.00 57.77 0.010 6.000 3.10E+002 2.87E+004 Bethel 138 Bethel 0.08 0.015 57.76 100.00 57.77 0.010 0.000 3.10E+002 2.87E+004 #Bethel Sub 2 Bethel 0.00 0.000 33.35 88.19 88.19 0.000 0.000 #Bethel Sub 1 Bethel 0.00 0.000 33.35 88.19 88.19 0.000 0.000 Gen9 : Coal3 100.00 10.893 100.00 100.00 100.00 10.893 10.898 8.00E-001 3.84E+001 8.00E-001 3.84E+001 Gen6 Combustion 3 100.00 18.300 100,00 100.00 100.00 18.300 18.308 4.76E-001 2.29E+001 4.76E-001 =2.29E+001 GenS Combustion 2 100.00 18.300 100.00 100.00 100.00 18.300 18.308 4.76E-001 2.29E+001 4.76E-001 2.29E+001 Gen3 Combustion 1 100.00 18.300 100.00 100.00 100.00 "18.300 18.308 4.76E-001 2.29E+001 4.76E-001 =2.29E+001 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-¥transformer Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engincer:Electric Power Systems,Inc. Filename:Bethel-DonlanMine ETAP PowerStation Page:14 4.7.0€Date:08-13-2003 SN:ELECPOWERS Study Case:CombineCycle Revision:Base Config.:Normal Combined Cycle Generation -All Units Online Fault at bus:Combustion 1 Nominal kV ==13.800 Prefault Voltage =100.00 %of nominal bus kV Base kV =13,800 =100.00 %ofbase kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus *V kA %Voltage at From Bus kA Symm.mms %Impedance on 100 MVA base ID ID From Bus Symm.rms Va Vb Ve la 310 RI XL RO x0 Combustion 1 Total 0.00 65.835 0.00 100.01 100.01 65.821 65.821 1.32E-001 6.35E+000 1.32E-001 6.36E+000 Gen3 Combustion 1 100.06 18.300 100.00 100.00 100.00 18.300 18.308 4.76E-001 2.29E+001 4.76E-001 2.29E+001 Bethel SS1 Bethel 0.00 0.000 57.74 57.74 100.00 0.000 0.000 Bethel SS2 Bethel 0.00 0.000 357.74 57.74 100.00 0.000 0.000 Bethel 138 Bethel 0.08 0.015 57.76 100.00 57.77 0.010 0.000 3.10E+002 =2.87E+004 Bethel 138 Bethel 0.08 0.015 57.76 100.00 57.77 0.010 0.000 3.10E+002 =2:87E+004 Bethel 138 Bethel 0.08 0.015 57.76 100.00 57.77 0.010 0.000 3.10E+002 2.87E+004 #Bethel Sub 2 Bethel 0.00 0.000 33.35 88.19 88.19 0.000 0.000 #Bethel Sub |Bethel 0.00 0.000 33.35 88.19 88.19 0.000 0.000 Gen9 Coal3 100.00 10.893 100.00 100.00 100.00 10.893 10.898 8.00E-001 3.84E+001 8.00E-001 3.84E+001 Gen6 Combustion 3 100.00 18.300 100.00 100.00 100.00 18.300 18.308 4.76E-001 =2.29E+001 =4.76E-001-2.29E+001 Gen5 Combustion 2 100.00 18.300 100.00 100.00 100.00 18.300 18.308 4.76E-001 2.29E+001 =4.76E-001 =2.29E+001 #Indi fault current ibution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a gi ded Delta-Y Project: Location: Contract: Enginecr: Filename: Nuvista Light &Power Co. Bethel -Donlin Mine 03-0094 Electric Power Systems,Inc. Bethel-DonlanMine ETAP PowerStation 4.7.0C Study Case:CombineCycle Page: Date: SN: Revision: Config.: 15 08-13-2003 ELECPOWERS Base Normal Combined Cycle Generation -All Units Online Fault at bus:Crooked Creek Nominal kV =138.000 Prefault Voltage =100.00 %of nominal bus kV Base kV =138.000 =100.00 %of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus av kA %Voltage at From Bus kA Symm.ms %Impedance on 100 MVA base ID ID From Bus Symm.rms Va Vb Ve la 310 RI Xl RO x0 Crooked Creek Total 0.00 0.499 0.00 88.98 88.68 0.650 0.650 1.08E+001 8.32E+001 3.04E+000 =.2.53E+001 Chuathbaluk Crooked Creek 25.82 0.497 27.11 90.34 90.65 0.458 0.080 1.05E+001 8.35E+001 3.41E+001 2.03E+002 Donian Crooked Creek 0.03 0.002 8.20 87.83 86.92 *0.189 0.561 1.83E+002 =1.82E+004 3.24E+000 =2.93E+001 Crooked Creek 0.00 0.000 53.76 53.94 105.00 0.003 0.009 *5.54E+002 --1.71E+003CrookedCreekLoad #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engincer:Electric Power Systems,Inc. Filename:_-_Bethel-DonlanMine ETAP PowerStation 4.7.0C Study Case:CombineCycle Page: Date: SN: Revision: Config.: 16 08-13-2003 ELECPOWERS Base Normal Combined Cycle Generation -All Units Online Fault at bus:Crooked Creek Load Nominal kV =12.470 Prefault Voltage =100.00 %of nominal bus kV Base kV =13.094 =95.24%ofbase kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus nV kA %Voltage at From Bus kA Symm.rms %Impedance on 100 MVA base ID ID From Bus =Symm.mms Va Vb Ve la 310 RI X1 RO x6 Crooked Creek Load Total 0.00 0.223 0.00 173.21 173.21 0.000 0.000 5.65E+002 =1.80E+003 Crooked Creck Crooked Creek Load 91.06 0.223 95.24 95.24 95.24 0.000 0.000 5.65E+002 -:1.80E+003 #Indicates fault current contribution is from threc-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Deita-Y transformer ETAP PowerStationProject:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engineer:Electric Power Systems,Inc. Filename:Bethel-DonlanMine 4.7.0C Study Case:CombineCycle Page: Date: SN: Revision: Config.: 7 08-13-2003 ELECPOWERS Base Normal Combined Cycle Generation -All Units Online Fault at bus:Donlan Nominal kV =138.000 Prefault Voltage =100.00 %of nominal bus kV 100.00 %of base kVBasekV=138.000 Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus "Vv kA %Voltage at From Bus kA Symm.ms %Impedance on 100 MVA base ID ID From Bus Symm.rms Va Vb Ve la 310 RI XL RO XO - Donlan Total 0.00 0.469 0.00 87.69 86.33 0.664 0.664 1.15E+001 8.85E+001 4.70E-001 -:1.07E+001 Crooked Creek Donlan 6.03 0.467 6.20 87.83 86.71 0.452 0.035 LI7JE+00l «8.89E+00L §=3.62E+001 =2.00E+02 Donian Mine Donlan 0.07 0.001 $2.34 53.16 105.00 0.106 0.315 *3.64E+002 -3.63E+00¢=8.24E-001 =2.25E+001 Donlan Mine Donlan 0.07 0.001 5234 53.16 105.00 0.106 0315 *3.64E+002-3.63E+004 =8.24E-001 2.25E+001 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer Project:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Engincer:Electric Power Systems,Inc. Filename:Bethel-DonlanMine ETAP PowerStation 4.7.0C Study Case:CombineCycle Page: Date: SN: Revision: Config.: 18 08-13-2003 ELECPOWERS Base Normal Combined Cycle Generation -All Units Online Fault at bus:Donlan Mine NominalkV =13.800 Prefault Voltage =100.00 %of nominal bus kV Base kV =14.490 =95.24%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus WV kA %Voltage at From Bus kA Symm.mms %Impedance on 100 MVA base ID ID From Bus =Symm.rms Va Vb Ve la 310 RI Xl RO Xo Donlan Mine Total 0.00 3.783 0.00 171.88 VL7I 0.062 0.062 1.19E+001 =9.96E+001 =:1L.BIE+002 1 .B1E+004 Donlan .Donian Mine 10.62 1.881 94.60 95.24 94.50 0.021 0.000 2.41E+001 -2.00E+002 Donlan Donian Mine 10.62 1.881 94.60 95.24 94.50 0.021 0.000 2.41E+001 -2.00E+002 Donlan SVC Donlan Mine 100.00 0.021 100.00 100.00 100.00 0.021 0.062 1.81E+002 1.81E+004 1.81E+002 =1.81E+004 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a gr ded Delta-Y former ETAP PowerStationProject:Nuvista Light &Power Co. Location:Bethel -Donlin Mine Contract:03-0094 Enginecr:Electric Power Systems,Inc. Filename:Bethel-DonlanMine 4.7.0C Study Case:CombineCycle Page: Date: SN: Revision: Config.: 19 08-13-2003 ELECPOWERS Base Normal Combined Cycle Generation -All Units Online Fault atbus;Kalskag NominalkV =138.000 Prefault Voltage =100.00 %of nominal bus kV =100.00 %of base kVBasekV=138.000 Positive &Zero Sequence Impedances Contribution '3-Phase Fault Line-To-Ground Fault Looking into "From Bus" From Bus To Bus *V kA %Voltage at From Bus kA Symm.rms %Impedance on 100 MVA base ID ID From Bus Sym.rms Va Vb Ve la 310 RI Xl RO x0 Kalskag Total 0.00 0.885 0.00 103.49 .106.14 0.806 0.806 5.38E+000 =4.69E+001 =9.71E+000 6.06E+001 Tutuksak Kalskag 35.52 0.881 40.36 99.45 101.55 0.672 0.414 5.44E+000 4.72E+001 =:1.82E+001 -:1.18E+002 Aniak Kalskag 0.11 0.004 9.90 98.46 100.78 0.124 0.364 9.80E+001 9.53E+003 2.09E+001 1.34E+002 Kalskag Load Kalskag 0.00 0.000 64.34 62.73 105.00 0.009 0.027 *5.54E+002 1.71 E+003 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y transformer Project:Nuvista Light &Power Co.ETAP PowerStation Page:20 Location:Bethel -Donlin Mine 4.7.0C Date:08-13-2003 Contract:03-0094 SN:ELECPOWERS i :lectric P .ision:Enginecr:Electric Power Systems,Inc.Study Case:CombineCycle Revision:Base Filename:-_Bethel-DonlanMine Config:|Normal Combined Cycle Gencration -All Units Online Fault at bus:Kalskag Load NominalkV =12.470 Prefault Voltage =100.00 %of nominal bus kV Base kV =13.094 =95.24%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking into "From Bus” From Bus To Bus "VY kA %Voltage at From Bus kA Symi.rms %Impedanceon100 MVA base ID ID From Bus =Symm.rms Va Vb Ve la 310 RI Xl RO x0 Kalskag Load Total 0.00 0.227 0.00 173.21 173.21 0.000 0.000 5.60E+002 -:1.76E+003 Kalskag Kalskag Load 92.85 0227 95.24 95.24 95.24 0.000 0.000 5.60E+002 =1.76E+003 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y fc ETAP PowerStationProject:Nuvista Light &Power Co.Page:21 Location:_-_Bethel -Donlin Mine 4.7.0C Date:08-13-2003 Contract:03-0094 SN:ELECPOWERS Engineer:-_Electric Power Systems,Inc.Study Case:CombineCycle Revision:Base Filename:-Bethel-DonianMine Config:|Normal Combined Cycle Gencration -All Units Online Fault at bus:Tuluksak Nominal kV =138.000 Prefault Voltage =100.00 %of nominal bus kV Base kV =138.000 =100.00%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fault Line-To-Ground Fault Looking inte "From Bus" From Bus To Bus *aV kA %Voltage at From Bus kA Symm,mms %Impedance on 100 MVA base ID ID From Bus =Symm.rms Va Vb Ve la 310 RI Xi RO xo Tuluksak Total 0.00 1370 0.00 106.48 109.89 1.167 1.167 2.92E+000 3.04E+001 7.12E+000 9 4.59E+001 Akiak Tuluksak 22.62 1366 28.56 101.52 104.26 1.056 0.841 2.94E+000 =3.0SE+001 9.31E+000 6.38E+001 Kalskag Tuluksak 0.18 0.004 13.56 99.19 102.26 0.101 0.296 1.01E+002 9.55E+003 -2.96E+001 =1.81E+002 Tuluksak Load Tuluksak 0.00 0.000 66.61 64.55 105.00 0.010 0.030 *5.54E+002 1.71 E+003 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a grounded Delta-Y former Project:Nuvista Light &Power Co.ETAP PowerStation 22Page: .«aes 4.7.0CLocation:Bethel -Donlin Mine Date:08-13-2003 Contract:03-0094 SN:ELECPOWERS Engineer:Electric Power Systems,Inc.Study Case:CombineCycle Revision:Base Filename:-Bethel-DonlanMine Config.:Normal Combined Cycle Generation -All Units Online Fault at bus:Tuluksak Load Nominal kV =12.470 Prefault Voltage =100.00 %ofnominal bus kV Base kV =13.094 =95.24%of base kV Positive &Zero Sequence Impedances Contribution 3-Phase Fauit Line-To-Ground Fault Looking into "From Bus" From Bus To Bus nV KA %Voltage at From Bus kA Symm.ms %Impedance on 100 MVA base 1D ID From Bus =Symm.rms Va vb Ve la 310 RI Xi RO x0 Tuluksak Load Total 0.00 0.229 0.00 173.21 173.21 0.000 0.000 5.S7E+002 =1.74E+003 Tuluksak Tuluksak Load 93.69 0.229 95.24 95.24 95.24 0.000 0.000 S.STE+002 --1.74E+003 #Indicates fault current contribution is from three-winding transformers *Indicates a zero sequence fault current contribution (310)from a gi ded Delta-Y fe APPENDIX 4 DONLIN CREEK MINE PROJECT SYSTEM STUDIES Appendix 4 Transient Stability Dynamics Data Transient Stability Simulation Plots PSS/E Transient Stability Data PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E WED,AUG 13 2003 11:59 DONLIN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 85 MW WITH SvC PLANT MODELS REPORT FOR ALL MODELS AT ALL BUSES BUS 10 [BETHEL 13.800]MODELS **GENROE **BUS X--NAME --X BASEKV MC CONS STATES 10 BETHEL 13.800 1 1-14 1-6 MBASE ZSORCE XTRAN GENTAP 56.2 0.00000+J7 0.21000 0.00000+7 0.00000 1.00000 T'DO T''DO T'QO T''Q0 H DAMP xD XQ X'D X'Q X''D XL 5.70 0.045 2.50 0.150 4.38 0.00 1.9500 1.8500 0.2600 0.4600 0.2100 0.1500 $(1.0)$§(1.2) 0.2375 0.8485 **EXPIC1]**BUS X--NAME --X BASEKV MC CONS STATES 10 BETHEL 13.800 1 99-122 43-49 TR KA TAL VR1 VR2 TA2 TA3 TA4 0.020 2.6 §.000 1.100 -0.585 0.000 0.000 0.000 VRMAX VRMIN KF TF1 TF2 EFDMAX EFDMIN 1.100 -1.100 0.000 1.000 0.000 4.287 -4.683 KE TE _El SE(E1)£2 SE(E2)KP KI KC 0.000 0.000 0.000 0.000 0.000 0.000 4.280 1.100 0.000 **IEEEG1 **BUS X--NAME --X BASEKV MC CONS STATES VARS 10 BETHEL 13.800 1 212-231 77-82 6-7 K Tl T2 T3 U0 uc PMAX PMIN T4 Kl 50.00 0.000 0.000 0.150 0.200 -0.200 0.8600 0.0000 0.350 1.000 K2 TS K3 K4 T6 K5 K6 T7 K7 K8 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Electric Power Systems,Inc.8/13/2003 PSS/E Transient Stability Data **GENROE **BUS X--NAME --X BASEKV MC CONS STATES 10 BETHEL 13.800 2 15-28 7-12 MBASE ZSOQORCE X TRAN GENTAP 56.2 0.00000+73 0.21000 0.00000+3 0.00000 1.00000 T'DO T''DO T''OQO T''QO H DAMP xD XQ X'D Xx'Q x''D XL 5.70 0.045 2.50 0.150 4.38 0.00 1.9500 1.8500 0.2600 0.4600 0.2100 0.1500 S(1.0)S(1.2) 0.2375 0.8485 **EXPIC1]**BUS X--NAME --X BASEKV MC CONS STATES 10 BETHEL 13.800 2 123-146 50-56 TR KA TAL VR1 VR2 TA2 TA3 TA4 0.020 2.6 5.000 1.100 -0.585 0.000 0.000 0.000 VRMAX VRMIN KF TF1 TF2 EFDMAX EFDMIN 1.100 -1.100 0.000 1.000 0.000 4.287 -4.683 KE TE El SE(E1)E2 SE (E2)KP KI KC 0.000 0.000 0.000 0.000 0.000 0.000 4.280 1.100 0.000 **TEEEG]**BUS X--NAME --X BASEKV MC CONS STATES VARS 10 BETHEL 13.800 2 232-251 83-88 8-9 K Tl T2 T3 uO uc PMAX PMIN T4 Kl 50.00 0.000 0.000 0.150 0.200 -0.200 0.8600 0.0000 0.350 1.000 K2 TS K3 K4 T6 K5 K6 T7 K7 K8 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Electric Power Systems,Inc.8/13/2003 PSS/E Transient Stability Data **GENROU **BUS X--NAME --X BASEKV MC cOoNSsS STATES 10 BETHEL 13.800 3 29-42 13-18 MBASE ZSORCE XTRAN GENTAP 52.5 0.00000+J 0.16600 0.00000+7 0.00000 1.00000 T'DO T''DO T'QO T''QO H DAMP XD xQ X'D Xx'Q xX''D XL 10.90 0.023 0.31 0.025 8.20 0.00 2.2000 1.7200 0.2520 0.5000 0.1660 0.1380 S(1.0)$§(1.2) 0.1100 0.4100 **EXST2A **BUS X--NAME --X BASEKV MC CONS STATES VAR 10 BETHEL 13.800 3 147-159 57-60 1 TR KA TA VRMAX VRMIN KE TE 0.000 70.0 0.150 1.000 -0.500 1.000 0.650 KF TF KP KI Kc EFDMAX KI VAR 0.018 1.000 2.100 2.100 0.017 3.000 0.000 **GTAKGE **BUS NAME BSKV MACH CON'S STATE'S VAR'S 10 BETHEL 13.8 3 252-295 89-112 10-24 WwW x Y Zz ETD TCD TRATE T MAX MIN ECR K3 50.00 0.000 0.050 1.00 0.040 0.200 42.00 0.00 1.0750 -0.26 0.010 0.680 A B Cc TF KF K5 K4 T3 T4 TT TS 1.00 0.05 1.00 0.20 0.000 0.200 0.800 15.00 3.000 450.0 3.30 AF1 BF1 AF2 BF2 CF2 TR K6 TC EMPTY CF1 TAIR 479.4 550.0 -0.470 1.470 0.500 914.0 0.320 940.0 0.0 0.0000 59.0 EXTRA CONS:0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 PMAX AT THIS AIR TEMP.(TAIR)=45.15 MW ABSOLUTE PMAX =45.15 MW Electric Power Systems,Inc.8/13/2003 PSS/E Transient Stability Data **GENROU **BUS X--NAME --X BASEKV MC CONS STATES 10 BETHEL 13.800 4 43-56 19-24 MBASE ZSORCE xXxTRAN GENTAP 52.5 0.00000+3 0.17100 0.00000+7 0.00000 1.00000 T'DO T''DO T'QO T''Q0 H DAMP xD XQ X'D X'Q X''D xL 10.90 0.023 0.22 0.049 8.20 0.00 2.1800 2.0780 0.2100 0.5400 0.1710 0.1410 °S(1.0)S(1.2) 0.1200 0.4800 **EXST2A **BUS X--NAME --X BASEKV MC CONS STATES VAR 10 BETHEL 13.800 4 160-172 61-64 2 TR KA TA VRMAX VRMIN KE TE 0.000 30.0 0.100 1.000 0.000 1.000 0.350 KF TF KP KI KC EFDMAX KI VAR 0.026 1.000 1.900 1.900 0.017 3.000 0.000 **GTAKGE **BUS NAME BSKV MACH CON!S&S STATE'S VAR'!'S 10 BETHEL 13.8 4 296-339 113-136 -25-39 WwW x Y Zz ETD TCD TRATE T MAX MIN ECR K3 50.00 1.059 3.050 1.00 0.040 0.200 42.00 0.00 1.0750 -0.17 0.010 0.725 A B Cc TF KF KS K4 T3 T4 TT TS 1.00 0.05 1.00 0.20 0.000 0.200 0.800 15.00 3.000 450.0 3.30 AF1 BF1l AF2 BF2 CF2 TR K6 Tc EMPTY CF1 TAIR 620.4 550.0 -0.359 1.380 0.500 948.0 0.275 980.0 0.0 0.0000 59.0 EXTRA CONS:0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 PMAX AT THIS AIR TEMP.(TAIR)=45.15 MW ABSOLUTE PMAX =45.15 MW Electric Power Systems,Inc.8/13/2003 [PSS/E Transient Stability Data **GENROU **BUS X--NAME --X BASEKV MC CONS STATES 10 BETHEL 13.800 5 57-70 25-30 MBASE ZSORCE X TRAN GENTAP 52.5 0.00000+J3 0.17100 0.00000+7 0.00000 1.00000 T'DO T''DO T'QO T''QO0 H DAMP xD .XQ X'D X'Q x''D XL 10.90 0.023 0.22 0.049 8.20 0.00 2.1800 2.0780 0.2100 0.5400 0.1710 0.1410 $(1.0)$§(1.2) 0.1200 0.4800 **EXST2A **BUS X--NAME --X BASEKV MC cONSsS STATES VAR 10 BETHEL 13.800 5 173-185 65-68 3 TR KA TA VRMAX VRMIN KE TE 0.000 30.0 0.100 1.000 0.000 1.000 0.350 KF TF KP KI KC EFDMAX KI VAR 0.026 1.000 1.900 1.900 0.017 3.000 0.000 **GTAKGE **BUS NAME BSKV MACH CON 'S STATE'S VAR!S 10 BETHEL 13.8 5 340-383 137-160 40-54 Ww x Y Z ETD TCD TRATE T MAX MIN ECR K3 50.00 1.059 3.050 1.00 0.040 0.200 42.00 0.00 1.0750 -0.17 0.010 0.725 A B Cc TF KF KS K4 T3 T4 TT TS 1.00 0.05 1.00 0.20 0.000 0.200 0.800 15.00 3.000 450.0 3.30 AFL BF1 AF2 BF2 CF2 TR K6 Tc EMPTY CFL TAIR 620.4 550.0 -0.359 1.380 0.500 948.0 0.275 980.0 0.0 0.0000 59.0 EXTRA CONS:0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 PMAX AT THIS AIR TEMP.(TAIR)=45.15 MW ABSOLUTE PMAX =45.15 MW Electric Power Systems,Inc.8/13/2003 PSS/E Transient Stability Data **GENROU **BUS X--NAME - X BASEKV MC CONS STATES 10 BETHEL 13.800 6 71-84 31-36 MBASE ZSORCE Xx TRAN GENTAP 52.5 0.00000+7 0.17100 0.00000+J3 0.00000 1.00000 T'DO T''DO T'QO T!'QO H DAMP XD XQ X'D X'Q X''D XL 10.90 0.023 0.22 0.049 8.20 0.00 2.1800 2.0780 0.2100 0.5400 0.1710 0.1410 $(1.0)$(1.2) 0.1200 0.4800 **EXST2A **BUS X--NAME --X BASEKV MC cons STATES VAR 10 BETHEL 13.800 6 186-198 69-72 .4 TR KA TA VRMAX VRMIN KE TE 0.000 30.0 0.100 1.000 0.000 1.000 0.350 KF TF KP KI KC -EFDMAX KI VAR 0.026 1.000 1.900 1.900 0.017 3.000 0.000 **GTAKGE **BUS NAME BSKV MACH CON!§&STATE'S VAR'S 10 BETHEL 13.8 6 384-427 161-184 55-69 W x Y Zz ETD TCD TRATE T MAX MIN ECR K3 50.00 1.059 3.050 1.00 0.040 0.200 42.00 0.00 1.0750 -0.17 0.010 0.725 A B c TF KF KS K4 T3 T4 TT TS 1.00 0.05 1.00 0.20 0.000 0.200 0.800 15.00 3.000 450.0 3.30 AF1 BFL AF2 BF2 CF2 TR K6 Tc EMPTY CF1 TAIR 620.4 550.0 -0.359 1.380 0.500 948.0 0.275 980.0 0.0 0.0000 59.0 EXTRA CONS:0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 PMAX AT THIS AIR TEMP.(TAIR)=45.15 MW ABSOLUTE PMAX =45.15 MW Electric Power Systems,Inc.8/13/2003 PSS/E Transient Stability Data **GENROU **BUS X--NAME - X BASEKV MC CONS STATES 10 BETHEL 13.800 7 85-98 37-42 MBASE ZSORCE XTRAWN GENTAP 31.2 0.00000+7 0.16600 0.00000+3 0.00000 1.00000 T'DO T''DO T'QO T''QO H DAMP xD XQ X'D X'Q X''D XL 10.90 0.023 0.31 0.025 8.20 0.00 2.2000 1.7200 0.2520 0.5000 0.1660 0.1380 $(1.0)$(1.2) 0.1100 0.4100 **EXST2A **BUS X--NAME --X BASEKV MC CONS STATES VAR 10 BETHEL 13.800 7 199-211 _73-76 5 TR KA TA VRMAX VRMIN KE TE 0.000 70.0 0.150 1.000 -0.500 1.000 0.650 KF TF KP KI Kc EFDMAX KI VAR 0.018 1.000 2.100 2.100 0.017 3.000 0.000 **GTAKGE **BUS NAME BSKV MACH CON'S STATE'S VAR'S 10 BETHEL 13.8 7 428-471 185-208 70-84 Ww x Y Z ETD TCD TRATE T MAX MIN ECR K3 50.00 0.000 0.050 1.00 0.040 0.200 25.00 0.00 1.0750 -0.26 0.010 0.680 A B c TF KF K5 K4 T3 T4 TT TS 1.00 0.05 1.00 0.20 0.000 0.200 0.800 15.00 3.000 450.0 3.30 AF1 BF1 AF2 BF2 CF2 TR K6 Tc EMPTY CF1 TAIR 479.4 550.0 -0.470 1.470 0.500 914.0 0.320 940.0 0.0 0.0000 59.0 EXTRA CONS:0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 PMAX AT THIS AIR TEMP.(TAIR)=26.88 MW ABSOLUTE PMAX =26.88 MW Electric Power Systems,Inc.8/13/2003 PSS/E Transient Stability Data PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E WED,AUG 13 2003 11:59 DONLIN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 85 MW WITH SVC LOAD MODELS REPORT FOR ALL MODELS AT ALL BUSES BUS 40 [DONLIN 13.800]MODELS **LDSHBL **BUS X--NAME --X BASEKV LD CONS VARS PRIVATE ICONS 40 DONLIN 13.800 1 509-518 109-111 15-23 HZ-1 Tl FRAC-1 HZ-2 T2 FRAC-2 59.000 0.100 0.250 58.700 0.100 0.250 HZ-3 T3 FRAC-3 TB 58.400 0.100 0.250 0.083 Electric Power Systems,Inc.8/13/2003 PSS/E Transient Stability Data PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E DONLIN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 85 MW WITH SVC CONEC MODELS WED,AUG 13 2003 11:59 REPORT FOR ALL MODELS AT ALL BUSES CONEC MODELS ***CALL CSSCS1(1,472,209,85)*** **CSSCS1 **BUS X--NAME --X BASEKV ICONS CONS STATES VARS 40 DONLIN 13.800 1-2 472-480 209-211 85-88 REMOTE BUS K T1 T2 T3 T4 TS VMAX VMIN VOV 0 1000.0 0.015 0.000 0.025 0.075 0.025 0.0 0.0 99.000 ***CALL CSSCS1(3,481,212,89)*** **CSSCS1 **BUS X--NAME --X BASEKV TCONS cONS STATES VARS 150 ANIAK 138.00 3-4 481-489 212-214 89-92 REMOTE BUS K Tl T2 T3 T4 TS VMAX VMIN VOV 0 1000.0 0.015 0.000 0.025 0.075 0.025 0.0 0.0 99.000 PTI INTERACTIVE POWER SYSTEM SIMULATOR--PSS/E WED,AUG 13 2003 11:59 DONLIN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 85 MW WITH SVC CONET MODELS REPORT FOR ALL MODELS AT ALL BUSES CONET MODELS ***CALL TSSCS1(1,472,209,85)we **TSSCS1 **BUS X--NAME --X BASEKV Icons CONS STATES VARS 40 DONLIN 13.800 1-2 472-480 209-211 85-88 ***CALL TSSCS1(3,481,212,89)**e **TSSCS1 **BUS X--NAME --X BASEKV ICONS cons STATES VARS 150 ANIAK 138.00 3-4 481-489 212-214 89-92 Electric Power Systems,Inc.8/13/2003 DONLAN MINE STUDIES BY EPS,JULY 2003NnMINELOAD85MWWITHSVC 20 ram]LOSS OF THE LARGEST UNIT AT BETHEL ow TNE TRIP OCCURS AT 1 SECOND =A FILE:ti-mine8S.out mMm [a] [am] fay) fav) S CHNL#10:CCOMB TURB2*!00 * 100.00 Qe erttennererecccecnzcos .0 i CHNL®9:CCOAL 23«100 at 100.00 -----0 CHNL#8:CCOAL 13100 100.00 Re 0 mt WsTT:\;IR. =i 46sf37 \31i 3-__|sZz[3 2 \:}¢.4 F S--{3 4 s \f g - yh(4 e =[i _|2 I =6]:ran} |;°5J3Sy -|¢4 soa4, |;eo wW fo f 2 boy °|i = = |_|°e |° 14 > y 2 |¢"5 ?@ S S |4a |3 DONLAN MINE STUDIES BY EPS,JULY 2003NwMINELOAD85SMWWITHSVC LOSS OF THE LARGEST UNIT AT BETHEL TRIP OCCURS AT 1 SECOND FILE:ti-mine85.out POWER TECHNOLOGIES Inc.®{8Ll:QELECAUG122003TUE,CHNL#17:CCOMB TURBI»*100 25.000 Orcerrerreneensscsceree °-25.00 CHNL#16:CCOAL 23100 25.000 -_----<4 25.00 CHNL®15:CCOAL 13%100 25.000 a -25.00 t ns #boy :T |: |i # |: _ |5 \;| |__ |F _| \: }¢ =\ : . _ \:ry | || _ |;| |;| ] |: [1 }__|:-_ |i | - |!_| | |@ Le {-_ /a ») - eeSee _cuaneeseeetere?[sae ee SES ee SS ee -Po a 20.00012.00016.00014.00018.00010.000(SECONDS)4,00008.00006.0000TIME2.000000. Nan POWER TECHNOLOGIES Inc.® DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 85 MW WITH SVC LOSS OF THE LARGEST UNIT AT BETHEL TRIP OCCURS AT 1 SECOND FILE:tl-mine85.out CHNL*38:60xCCOMB TURBI+60 62.000 Oronroreoeecceceasenecne °58.000 CHNL#37:60*CCOAL 273+60 62.000 --_TTT a 58.000 CHNL#36:60xCCOAL 11+60 62.000 e---8 58.000 |{- fL\_ yfi \ y \ N|__\- \ \ \ \ @ \L__\- aN \ \ \ = \ _\ \ +--A _-_ Fa S & oOed---womb _= ||[8.0000|20.00016.00012,0004.00000.018(HZ)Vi:10.00014,00018.000TUE(SECONDS),6.00002.0000AUG122003FREQUENCYTIME wr POWER TECHNOLOGIES INC .® DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 85 MW WITH SVC LOSS OF THE LARGEST UNIT AT BETHEL TRIP OCCURS AT 1 SECOND FILE:tl-mine85S.out CHNL#31:CCOMB TURBI 1.0000 Qo > CHNL*30:CCOAL 2]1.0000 won CHNL#29:CCOAL 19 1.0000 i |LF |Po t g oNey|g =AwttXe 2 P a N 2 Se, Weeo«--Se"ss @ Poon(: Zz ;al FFli --he hi[5 |i 1|i o ='= |i|3 = 1 i| |||@ o :So{$ :° |H 4” |3 |i =|/\g \ oe . fo]18.00014.00010.0006.00002.00001811:PMECH(PU)AUG122003TUE,(SECONDS)TIME wn DONLAN MINE STUDIES BY EPS, MINE LOAD 85 MW WITH SVC LOSS OF THE LARGEST UNIT AT BETHEL JULY 2003 aPOWER mee}TRIP OCCURS AT 1 SECOND FILE:ti-mine8S.out CHNL#s 46:CBETHEL-13.8] 1.2500 0 mene +0.75000 CHNL#45:COONLAN-13.8] Pe2500 rns cn nc cncenensanecncs °0.75000 CHNL#44;[LDONLAN-138] 1.2500 :--_-TT TT a 0.75000 CHNL#43:CANIAK-138) 1.2500 &----41_0.75000 |ryt[idma 1 #| =aH _ |1 ElmHfl_'|7 ai Fl hdbh {ilaH |mH _mH'||:|Th /-|x 1 'Ht || =1 El _ mHmHthEl _7 |meifl iti|_-\|-- 1 | ]mre20.000-8.000012.00016.0004.00001811;(PU}TUE,18.00014,00010.0006.00002.0000AUGle2003BUSVOLTAGE(SECONDS)TIME Nan POWEA TECHNOLOGIES INC .@ DONLAN MINE STUDIES BY EPS, MINE LOAD 8S MW WITH SVC LOSS OF THE LARGEST UNIT AT BETHEL TRIP OCCURS AT 1 SECOND JULY 2003 FILE:tl-mine85.out CHNL#48:50+100*xCANIAK-SVC-Y] 50.000 ---T-oT a -50..00 CHNLs 47:SO+100xCDONLAN-SVC-YJ 50.000 ee -50.00 |i }oy |4| 1)| =|_ | | | =|-_ | | j-_|_] 1)| | | || _ | | | | pane |-_- 4| [| L__|-| | | | | -| | 4)) \.4-_2|_an __| T -So 2 20.0004.00008.000012.00016.0006.000010.00014.00018.0002.0000AUS12200318ll:(Q-NOMINAL}TUE,SVCOUTPUT(SECONDS)TIME wn POWER TECHNOLOGIES Inc.® DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 5S MW WITH SVC LOSS OF THE MINE LOAD AND 138 KV BREAKER OPENS AT 1 SUBSTATION SECOND FILE:teé-mine5S5.out CHNL#10:ECOMB TURBIx100 100.00 0 ©Gr tenerenncaresenennene 0.0 CHNL#9:ECOAL 23100 100.00 ----TT 0.0 CHNL#8:CCOAL 1:%100 100.00 ee 0.0 |rT i 4 a ¢ 2 9-----20.00016.00012.0008.00004.000018.00014.00010.0006.00002.000011:31AUG122003PELECTUE,(SECONDS)TIME nw POWER TECHNOLOGIES Inc.© DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD SS MW WITH SVC LOSS OF THE MINE LOAD AND SUBSTATION 138 KV BREAKER OPENS AT 1 SECOND FILE:t2-mine5SS.out CHNL#17:CCOMB TURBI»100 25.000 Qe er nenernnnnrnecrcezene 25.00 CHNL#16:CCOAL 23100 25.000 SCT -25.00 CHNL#15:CCOAL 173100 25.000 8 -25.00 é =é _| enTREPSi its caasceressecoonce 20.00016.00012.0008.00004.0000018.00014.00010.0006.00002.000011:31AUG122003QELECTUE(SECONDS)TIME AWILAINANOAYS(ZH)Te?tt(SQNQ94S)"ant€00¢eelIN0000°e0000°9000°0I000°hI000°8I0000°h0000'S000'el000°9I000°02000°8S g--_______5 000°29 O9+ET TW09J*09 SE =INHO 000'aS >---_-_-a "900"29 O9+Ce WOdI*0d =LE *NHI 000 78S Oren eeesceeeeeeeeeseeees ©000729 09+CEYNL GWOII*09 'SE #INHO yna'ggeutw-e}F114 QNOIJ3SS I LY SN3d0 YAMYIYD AM BET NOTLYULSENS ONY G¥O1 SNIW 3HL 40 SSO1 JAS HLIM MW SS QbOT SNIW €00e AINE *Sd3 AG SIJIGNLS JNIW NYINOG @Ni $3190 TGNHI3L uaMod all Ninn POWER TECHNOLOGIES INC. DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 55 MW WITH SVC LOSS OF THE MINE LOAD AND SUBSTATION 138 KV BREAKER OPENS AT 1 SECOND FILE:te-mineSS.out CHNL#32:CCOMB TURBI T0000 nr nnnEST SEES CHNL®30:CCOAL 2] 1.0000 wo CHNL#29:CCOAL 13 1.0000 -- i)20.0008.000012.00016.0006.000010.00014.00018.000(SECONDS)4.0000000011:31(PU)AUG122003PMECHTUETIME we POWER TECHNOLOGIES TNC.© DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD SS MW WITH SVC LOSS OF THE MINE LOAD AND SUBSTATION 138 KV BREAKER OPENS AT 1 SECOND FILE:te-mineSsS.out CHNL®46:CBETHEL-13.83 1.2500...eae ena *0.75000 CHNL#45:COONLAN-13,8] 1.25000 Gerssratasrsarennreeees ®0.75000 CHNL*44:CDONLAN-138] 1.2500 -=0.75000 CHNL®43;CANIAK-138] 1.2500 a-----a_0.75000 rity 3 1 S|= 1 |@ =|- 1 | | '|° 'oS (|°Zz 1 |so+2 1 | '|> i)it |i |- 11 @ i | |° 1 o 1 |°||= i |x | i+| 1 | ='-_-+?| J|g i |a Ss 1 So |>|-*1 | || i |-+--1 _|Py H |tei13 1 |[1] 1 :|1|' =|_ \|"kh Leo |o|L:i 3 10.00014.00018.000TUE(SECONDS)'6.00002.000011:31(PU)AUG122003BUSVOLTAGETIME Nw POWER TECHNOLOGIES INC © DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 55 MW WITH SVC LOSS OF THE MINE LOAD AND SUBSTATION 138 KV BREAKER OPENS AT 1 SECOND FILE:te-mineSS.out CHNL#48:50+100*xCANIAK-SVC-Y2 30.000 ee mn ne ae me -50.00 CHNL#47:50+100*CDONLAN-SVC-YI 50.000 ee -50.00syf 4| #| ||- | | | | =_ | | 4 __ a | | | =| _ | | | | 4| a | |__|- | | | | -=\ \ |i) | { \ =i -_ 7 -------=||j |il 20.00016.00012.0008.00004.00000.018.00014.00010.0006.00002.000011:31(Q-NOMINAL)AUG122003TUE,SVCOUTPUT(SECONDS)TIME DONLAN MINE STUDIES BY EPS,JULY 2003NWMINELOAD85MWWITHSVC LOSS OF THE MINE LOAD AND SUBSTATION 138 KV BREAKER OPENS AT 1 SECOND FILE:t2-mine85.out POWEA TECHNOLOGIESINC© CHNL#10:CCOMB TURBIx100 100.00 ra 2 0.0 CHNL#9:CCOAL 27100 100.00 a <00 CHNL®8:CCOAL 12*100 100.00 ss 0.0 - 'i |_ é 4.000011:3112.00016.00020.00014.00018.000TUE,AUGle2003PELEC10.000(SECONDS)TIME8.00006.00002.0000 we POWER TECHNOLOGIES Inc.® DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 85 MW WITH SVC LOSS OF THE MINE LOAD AND SUBSTATION 138 KV BREAKER OPENS AT 1 SECOND FILE:t2-mine8S.out CHNL#17:CCOMB TURBI*100 25.000 Ororeceeterstserocacense ° 25.00 CHNL#16:CCOAL 273100 25.000 . CTT TT a -25.00 CHNL#15:CCOAL 1)%100 25.000 a) 25.00 20.00016.00012.0008.00004,000010.00014.00018.000(SECONDS)6.00002.000011:31AUG122003QELECTUETIME Nn POWEA TECHNOLOGIES Inc.© DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 85 MW WITH SVC LOSS OF THE MINE LOAD AND SUBSTATION 138 KV BREAKER OPENS AT 1 SECOND FILE:te-mine85.out CHNL#38:60xCCOMB TURBIJ+60 62.000 CHNL#37:60*x£COAL 23+60 62.000 CHNL#36:60*CCOAL 13+60 62.000 I 11:31(HZ)AUG122003FREQUENCYTUE,e---_--_---)20.00012.00016.00014.00018.00010.000(SECONDS)4.00008.00006.0000TIME2.000000. Nvwn- POWER TECHNOLOGIES INC.O DONLAN MINE STUDIES BY EPS, MINE LOAD 85 MW WITH SVC JULY 2003 LOSS OF THE MINE LOAD AND SUBSTATION 138 KV BREAKER OPENS AT 1 SECOND FILE:te-mine8S.out CHNL#31:CCOMB TURBI 1.0000 Grantee necnne ence tennnee CHNL#30:CCOAL 27 1.0000 ---- CHNL®29:CCOAL 13 1.0000 20.00016.00012.000B.000018.00014,00010.0006.00002.000011:31PMECH(PU)AUG122003TUE,:(SECONDS)TIME nn POWER TECHNOLOGIES Inc.© DONLAN MINE STUDIES BY EPS, MINE LOAD 85 MW WITH SVC LOSS OF THE MINE.LOAD AND SUBSTATION 138 KV BREAKER OPENS AT 1 SECOND t2-mine85.outFILE: JULY 2003- CHNL#46:CBETHEL-13.8] 1.2500 Poot srt 0.75000 CHNL#4S:CDONLAN-13.8) 1.2500 Or voseeoencnnoreernorses 0.75000 CHNLs 44:CDONLAN-138) 1.2500 _---T-TTT 0.75000 CHNL#43:CANIAK-138] 1.2500 eS 0.75000 |ifyhlok |a ' ||!_! ||i I fh loi |oh |'$ 1 1 Z i _ | I hs ||i =|| _loft |ft 1h lh |:| |lof 4 I oh |i | I 4 |4 | | I,Pe - Lhbeets > a Do|||!pul |||20.00016.00012.0008.00004.000018.00014,00010.0006.00002.000011:31AUG122003BUSVOLTAGE(PU)TUE,(SECONDS)TIME Nw POWER TECHNOLOGIES INC.@ DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 85 MW WITH SVC LOSS OF THE MINE LOAD AND SUBSTATION 138 KV BREAKER OPENS AT 1 SECOND FILE:te-mine85.out CHNL#48:50+100*CANIAK-SVC-Y] S0.000 ae ne a ee -50.00 CHNL#47:50+100*CDONLAN-SVC-YI 50.000 RE -50.00 ]TTT| a | =[_] | | | | =!_ | | j =|- a | | | =|_| | | | | -|-_- } \ [:s] ;|||_ | \ \ | | _|| | an | \ | \ --_/-_- ze ||L4|4 |||20.00016.00012.0008.00004.00000Q.18.00014.00010.0006.00002.000011:31(Q-NOMINAL}AUGle2003TUE,SVCQUTPUT(SECONDS)TIME Nw POWER TECHNOLOGIES INC.@ DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 70 MW WITH SVC MOTOR START AT 1 SECOND,60%VOLTAGE MOTOR VOLTAGE RETURNS TO 100%AT 14 SECONDS FILE:t3-mine/70-start60.out CHNL#10:CCOMB TURBI»!00 CHNL#9:CCOAL 23100 CHNL#8:CCOAL 13100 7]TF 20.00016.00012.000B.00004.000018.00014.00010.0006.00002.000011:45AUG122003|PELECTUE,(SECONDS)TIME Nw POWER TECHNOLOGIES INC.@ DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 70 MW WITH SVC MOTOR START AT 1 SECOND,60%VOLTAGE MOTOR VOLTAGE RETURNS TO 100%AT 14 SECONDS FILE:t3-mine/70O-start60.out CHNL#17:ECOMB TURBI™100 25.000 )ee -25.00 CHNL#16:CCOAL 23%100 25.000 ---25.00 CHNL#15:CCOAL 13%100 25.000 a------a -25.00 a: ' |é - @ : yo!20.00016.00012,0008.00004.00000.06.0000.10.00014.00018.0002.0000245AUG12200311QELECTUE,(SECONDS)TIME ann POWER TECHNOLOGIES Inc.© DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 70 MW WITH SVC MOTOR START AT 1 SECOND,60%VOLTAGE MOTOR VOLTAGE RETURNS TO 100%AT 14%SECONDS FILE:t3-mine70-start60.out CHNL#38:60xCCOMB TURBI+60 62.000 Orscseceeeeccescessecte 2 58.000 CHNL#37:60»CCOAL 21+60 62.000 SS <58.000 CHNL#36:60*CCOAL 13+60 62.000 a3 58.000 20.00016.00012.0008.00004.000018.00014.00010.0006.00002.000011:45AUG122003FREQUENCY(HZ)TUE,(SECONDS):TIME Nan POWER TECHNOLOGIES INC.@ DONLAN MINE STUDIES BY EPS, MINE LOAD 70 MW WITH SVC MOTOR START AT 1 SECOND, MOTOR VOLTAGE RETURNS TO 100%AT 14 SECONDS t3-mine/7O-start6Q.outFILE: JULY 2003 60%VOLTAGE CHNL#31:CCOMB TURBO 1.0000 ©©2 Qrt erent ne ennnnnstennene CHNL#30:CCOAL 23 1.0000 -_- CHNL#29:CCOAL 13 1.0000 eo 20.00016.00012.000B.00004.00000.18.00014.00010.0006.00002.000011:45PMECH(PU)AUG122003TUE,(SECONDS)TIME Ninn POWER TECHNOLOGIES INC.® DONLAN MINE STUDIES BY EPS, MINE LOAD 70 MW WITH SVC MOTOR START AT 1 SECOND,60%VOLTAGE JULY 2003 MOTOR VOLTAGE RETURNSTO 100%AT 14 SECONDS FILE:t3-mine70-start60.out CHNL#46:CBETHEL-13.83 1.2500 Portcsrssc +0.75000 ;CHNL#45;CDONLAN-13.83 1.2500 +Qrestesseccsccseeanennes °0.75000 CHNL#44;CDONLAN-1383 1.2500 ----4 0.75000. CHNL#43:CANIAK-1389 1.2500 a-----4A 0.75000 :Ty g \}° '> t |a a | | '°o i |ro] 'So |||< +|= ' »| }£! c c, =ae = i | 'KON t mea °o !an Es -™Wai'*N _ +\ \ :ii '4 oO:)k s 'i _|e I ° 'I:i;i =':-_ :\ i i'\¢2''y;3 --'li Vs t 8 {i'4 'Li iL'lL:- }13CoLPabiee a 4 3 10.00014.00018.000(SECONDS)6.00002.000011:45(PU)AUG122003TUEBUSVOLTAGETIME DONLAN MINE STUDIES BY EPS,JULY 2003wrMINELOAD70MWWITHSVC OER MOTOR START AT 1 SECOND,60%VOLTAGEINC.@ MOTOR VOLTAGE RETURNS TO 100%AT 14 SECONDS FILE:t3-mine/70-startb60.out 11:46(Q-NOMINAL)AUG122003TUE,CHNL#48:50+100xCANIAK-SVC-YI 50.000 -----< CHNL#47:50+100*CDONLAN-SVC-YI 50.000 so o-; |\|| |if | | | | | H-{ | Z$nN wees-|@ | 7 ”" Pa |7 / [ | | -| {|- a | =| | | | = | I | =|a | | {}--} \ wef |J {|y ft |L 20.000SVCOUTPUT16.00014.00018.00012,000(SECONDS)TIME Hawn POWER TECHNOLOGIES Inc .@ DONLAN MINE STUDIES BY EPS,JULY 2003 MINE LOAD 70 MW WITH SVC MOTOR START AT 1 SECOND,60%VOLTAGE MOTOR VOLTAGE RETURNS TO 100%AT 14 SECONDS FILE:t3-mine/7O-start60.out CHNLs 49:60*CMOTOR SPEED DEVI+60 100.00 0.0 ]|16.00020.00018.0008.000012.0004.000014.00010.0006.00002.000011:46AUG122003(HZ)MOTORSPEEDTUE,(SECONDS)TIME DONLAN MINE STUDIES BY EPS,JULY 2003wweMINELOAD70MWWITHSVE MOTOR START AT 1 SECOND,60%VOLTAGEPOWERmee|MOTOR VOLTAGE RETURNS TO 100%AT 14 SECONDS FILE:t3-mine70-start60.out CHNL#52:CMOTOR TERM VOLTAGE PUI 1.2000 eee 0.20000 CHNL#SI:CMOTOR VARS 0.25000 ss =0.2500 CHNLs 50:CMOTOR CURRENT PUI 5.0000 0-0 i ||j Tl | l a --_|-- | | | =||_| i | é | o 20.00016.00012.0008.00004.000011:46AUG122003MOTORI1,V,QTUE,18.00014.00010.0006.00002.0000(SECONDS)TIME Nn POWER TECHNOLOGIES INC © DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1 SECOND,STARTING REACTOR SIZE 0 MVAR FILE:t4-energizeO.out CHNL#10:CCOMB TURB3%100 100.00 Or rsnnrnecenonees CHNL*9:CCOAL 23%100 100.00 ST CHNL#8:CCOAL 13%100 100.00 as 20.00016.00042,0008.00004.0000012:11PELECAUG122003TUE,18.00014.00010.0006.00002.0000(SECONDS)TIME Nw POWER TECHNOLOGIES INc.® DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1 SECOND,STARTING REACTOR SIZE 0 MVAR FILE:t4Y-energizeO.out CHNL#17:CCOMB TURBI*100 25.000 | On eeererrccees =25.00 CHNL®16:CCOAL 21%100 25.000 --25.00 CHNLs 15:CCOAL 17%100 25.000 s-----4 =25.00 ¥y whe 20.00016.00012.0008.00004.000010.00014.00018.000(SECONDS)6.00002.0000AUG12200312:11QELECTUE,TIME Nn POWER TECHNOLOGIES Inc.© DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1 SECOND,STARTING REACTOR SIZE 0 MVAR FILE:t4-energizeQ.out CHNL#38:60xCCOMB TURBI+60 62.000 Onno reeertorcencecere 58.000 CHNL*37:60ECOAL 23+60 62.000 ---_-TTT 58.000 CHNL#36:60xCCOAL 13+60 62.000 eB 58.000 I | ct) $ a _----@ - ¢q EY 84---@20.00016.00012.0008.00004.000010.00014.00018.000(SECONDS)6.00002.0000|12:11(HZ)RUG122003FREQUENCYTUETIME. Nw POWEA TECHNOLOGIESINC.@ DONLAN MINE STUDIES BY EPS, NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1 SECOND,STARTING REACTOR SIZE 0 MVAR FILE:th-energized.out JULY 2003 CHNL#31:CCOMB TURBI 1.0000 42 escent cre tare ennnnnnen CHNL#30:ECOAL 23 P0000 ee a CHNL#29:CCOAL 14 1.0000 a--------a 20.00016.00012.000B.00004.0000le:))(PU)AUG122003PMECHTUE,18.000149.00010.0006.00002.0000(SECONDS)TIME Nan POWER TECHNOLOGIES Inc.© DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD, ENERGIZE THE AT 1 SECOND, WITH SVC 138 KV LINE FROM BETHEL TO DONLAN STARTING REACTOR SIZE 0 MVAR FILE:tY-energized.out CHNL#46:CBETHEL-13.8]) 1.2500 aa +0.75000 CHNL#45:CDONLAN-13.8] 1.2500 Ors sresessececcecceeese ©0.75000 CHNL#44;CDONLAN-1389 1.2500 bene a 0.75000 CHNL#43:CANIAK-1381 1.2500 ,Bb 8 0.75000 bg||3 Qo;'3|@ ' ||_ i]|i 1 |'Ss =!_{2 |1 - |\ry j ' '--ib |- |1 |° |S =!se|1 ™ |' |+ |\ j ! |;o |®2 ||_|s |” |1 i {' ' =|_ |t '4J'Foes]i foo]{!oS 1 Qo __|s |Fy \= I a -=ueet t ||||2 +>TUE,18.00014.0006.000012:11AUG122003BUSVOLTAGE(PU)(SECONDS)TIME Nn POWER TECHNOLOGIES INC.® DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1 SECOND,STARTING REACTOR SIZE 0 MVAR FILE:t4-energizeO.out. CHNL#48:OxfANTAK- SVC-YI 50.000 CHNL#47:OxCDONLAN-SVC-YI 50.000 |] @ |20.00016.00012.0008.00004.000010.00014.00018.000TUE,SVCOUTPUT6.00002.0000le:11AUGle2003(Q-NOMINAL)(SECONDS)TIME wr »|PONER TECHNOLOGIES INC.® DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1 SECOND,STARTING REACTOR SIZE -10 MVAR FILE:t4Y-energize-10.out CHNL#10:CCOMB TURBIJ»%100 100.00 Ornrreerereerweesreece CHNL#9:CCOAL 22%100 100.00 ----TTT CHNL#8:CCOAL 13100 100.00 a---------_5 T |r a ¢ a! -¢ ah : a! al L Li 20.00016.00012,0008.00004.00000.010.00014.00018.000(SECONDS)6.00002.0000AUG12200312:11PELEC.TUE,TIME Nw POWER TECHNOLOGIES INC © DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1 SECOND,STARTING REACTOR SIZE -10 MVAR FILE:t4¥-energize-10.out CHNL#17:CCOMB TURBI*100 25.000 Or nner ee ser cree esenccrees -25.00 CHNL#16:CCOAL 23%100 25.000 TT TT -25.00 CHNL#15:CCOAL 13*100 25.000 2 -25.00 'ah i gi |;-_20.00016.00012.0008.00004.000010.00014.00018.000(SECONDS)6.00002.000012:12QELECAUG122003TUE,TIME Ninn POWER TECHNOLOGIES INC.@ DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1 SECOND,STARTING REACTOR SIZE -10 MVAR FILE:t¥-energize-10.out CHNL*38:60*CCOMB TURBI+60 62.000 Oressnessossccnssssenaas °58.000 CHNL#37:60*CCOAL 21+60 62.000 --ST <58.000 CHNL®36:60xCCOAL 13+60 62.000 e-----4 58.000 4 i)20.00016,00012.000B.00004.000012:12AUG122003(HZ)FREQUENCY18.000TUE,14.000"10.000(SECONDS)TIME6.00002.0000 Nan POWER TECHNOLOGIES INC .@ DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT.1 SECOND,STARTING REACTOR SIZE -10 MVAR FILE:t4-energize-10.out CHNL*31:CCOMB TURBI 1.0000 O--concsnaccncaneseasens CHNL#30:CCOAL 2) 1.0000 <_-_-___- CHNL#29:CCOAL 1)” 1.0000 a 4.00008.000012.00016.00020.0002.00000.0l2:1leRUG122003(PU)PMECH10.00014.00018.000TUE,(SECONDS)6.0000TIME Nw POWER TECHNOLOGIES INC. DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1 SECOND,STARTING REACTOR SIZE -10 MVAR FILE:t4-energize-10.out| CHNL#46:CBETHEL-13.8] 1.2500 Soeeeeeiaieieieteiate +0.75000 CHNL#45:CDONLAN- 13.8) 1.2500 Ornneessnesceenerenanees °0.75000 CHNL#44:CDONLAN-138] 1.2500 a <0.75000 CHNL®43:CANIAK-1387 1.2500 e-------s___-*-.75000 2ly |}d |4 ||\_| "|' |' |' | =|i _ |!|P i }-_ |« |i |H j 1 = |!_| i|! +| |__|'-_-4 tflo||i =|i _| | Ei} | |t|'5| j _||| l 8)1 | |' =|'-] )i22 1 V||[3 il ||20.00016.00012.0008.00004.00002.000010.00014.00018.000TUE,(SECONDS)6.000012:12AUGle2003BUSVOLTAGE(PU)TIME Nn POWER TECHNOLOGIES Inc.© DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1 SECOND,STARTING REACTOR SIZE -10 MVAR FILE:t4-energize-10.out CHNL#48:OxCANIAK-SVC-YI -000 CHNL#47:OxCDONLAN-SVC-YI +000 20.00016.00012.0008.00004.000010.00014.00018.000TUE(SECONDS),SVCOUTPUT6.00002.0000le:leAUG122003(Q-NOMINAL)TIME Hw POWER TECHNOLOGIES Inc.© DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1 SECOND,STARTING REACTOR SIZE -20 MVAR FILE:t4-energize-20.out CHNL#10;CCOMB TURBI«100 100.00 Se CHNL®9:CCOAL 23%100 100.00 SSS CHNL#8:CCOAL 13*100 100.00 a-----3 20.00016.00012.0008.00004.00000.010.00014.00018.000(SECONDS)6.00002.000012:12PELECAUG122003TUE,TIME DONLAN MINE STUDIES BY EPS,JULY 2003wwNOMINELOAD,WITH SVC TOWER ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLANnc.AT 1 SECOND,STARTING REACTOR SIZE -20 MVAR FILE:t4¥-energize-20.out CHNL#17:CCOMB TURBIx100 25.000 Orscreeecesesreceeeccees -25.00 CHNL#16:CCOAL 273100 25.000 ---TT -25.00 CHNL®15:CCOAL 13%100 25.000 &-----4 -25.00Fe Yi é 4) bh i _=_ ' a T |L if 20.00016.00012.0008.00004.000012:12QELECAUG12200310.00014.00018.000TUE(SECONDS),6.00002.0000TIME DONLAN MINE STUDIES BY EPS,JULY 2003NwNOMINELOAD,WITH SVC roms|ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLANINC©AT 1 SECOND,STARTING REACTOR SIZE -20 MVAR FILE:t4¥-energize-e20.out CHNL#38:60™*CCOMB TURBI+60 62.000 Orssneconsencececeasceae °58.000 CHNL#37:60*CCOAL 21+60 62.000 --SS 4 58.000 CHNL#36:60™CCOAL 13+60 62.000 ,a--_----5 58.000 @ =i) > 7 i:4] eel 4q -- a Q > @ !|12:12(HZ)AUG122003FREQUENCY12,00016.00020.00014.00018.000TUE,10.000(SECONDS)8.00006.0000TIME4.00002.00000.0 wa POWER TECHNOLOGIES Inc.® DONLAN MINE STUDIES BY EPS, NO MINE LOAD,WITH SVC JULY 2003 ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1 SECOND,STARTING REACTOR SIZE -20 MVAR FILE:t4-energize-20.out CHNL#312:CCOMB TURBI 1.0000 O--20 nsesnannnrecescees CHNL#30:CCOAL 2) 1.0000 -- CHNL#29:CCOAL 11] 1.0000 --_--_-_---2 20.00016.00012.0008.00004.0000le:1eAUGle2003(PU)PMECHTUE,18.00014.0006.00002.000010.000.(SECONDS)TIME Ninn POWER TECHNOLOGIES INC.® DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1-SECOND,STARTING REACTOR SIZE -20 MVAR FILE:t¥-energize-20.out CHNL#46:CBETHEL-13.8) 1.2500 ess ccaasaee +0.75000 CHNL#45;COONLAN-13.8) 1.2500 Qo scot cesenenenasarees *0.75000 CHNL#44:CDONLAN-1389 1.2500 SS ="0.75000 CHNL#43:CANIAK-1383 1.2500 a-------a_-s-0.75000 nan 8 1 o i.o 1 feat] i |@ |1 |_ 1 | V 1 | |s|°o 1 | '|¢ 11 ='|_] i|@'| 1 |2 ||_|s1|" | 1 |ri.1 |-4 'if7 e ai S |i |oon bei| i | i | | =_+| i}7 bi).b='oof.|ale(|@ 1 | | =iI _ 1 | id °|||L |be 10.00014.00018.000TUE(SECONDS)'6.00002.0000AUGle200312:12(PU)BUSVOLTAGETIME Naw POWER TECHNOLOGIES Inc.® DONLAN MINE STUDIES BY EPS,JULY 2003 NO MINE LOAD,WITH SVC ENERGIZE THE 138 KV LINE FROM BETHEL TO DONLAN AT 1 SECOND,STARTING REACTOR SIZE -20 MVAR FILE:t4-energize-20.out CHNL#48:OxCANTAK-SVC-Y] 50.000 CHNL#47:OxCDONLAN-SVC-YI 50.000 |2 @ 20.00016.00012.0008.00004.00000.06.000010.00014.00018.0002.0000le:le(Q-NOMINAL)AUG122003TUE,SVCOUTPUT(SECONDS)TIME Appendix E -Site Development,EarthWorks,Foundations, Bulk Fuel and Coal Storage _1.Coal-Fired Plant at Bethel 2.Combustion Turbine Plant at Bethel 1.Coal-Fired Plant at Bethel Nuvista Light &Power Co. COAL FIRED POWER PLANT BETHEL,ALASKA SITE DEVELOPMENT, EARTHWORKS,FOUNDATIONS, BULK FUEL AND COAL STORAGE CONCEPTUAL DESIGN REPORT SEPTEMBER 2,2003 Prepared by: Mike Hendee,P.E. ALCWF.. 139 East 51st Avenue Voice:(907)273-1830 Anchorage,Alaska 99503 Fax:(907)273-1831 Bethel,Alaska Coal Fired Power Plant Conceptual Design Report EXECUTIVE SUMMARY This report has been prepared for Nuvista Light &Power,Co.under contract with Bettine,LLC. Its purpose is to provide a conceptual level design and budget cost estimate for site development, access roads,foundations,coal storage area,bulk fuel systems and off-loading dock for a new coal fired power generation plant located in Bethel,Alaska.' The proposed power plant will consist of two 48-megawatt coal fired steam turbines and one 46- megawatt diesel fired combustion turbine.The coal storage area will be approximately 16 acres in size,and will store approximately 400,000 tons of coal.A 3,000,000 gallon bulk fuel tank farm,two 12,000 gallon intermediate/day fuel tanks,a 700,000 gallon raw water tank and an 80,000 gallon demineralized water tank also comprise the facility. The report includes basic feasibility level conceptual design drawings for the site development, access roads,coal and fuel storage,piping,and an off-loading dock for coal and fuel barges. Also included are permitting requirements for the scope of work identified above,flood hazard information,and budget cost estimates. The proposed site location for the power plant facility was provided by Bettine,LLC and is located approximately 6000 feet south of the City of Bethel Petroleum Port and 1650 feet west of the Kuskokwim River.For this report,we have assumed the site is underlain by ice-rich warm permafrost.No geotechnical nor survey information is available for the proposed site.The power plant layout is preliminary,and consists of a 100,000 square foot building housing the boilers and turbines,a maintenance building,an administration building,staff housing and cooling towers.The layout is based on information provided by Precision Energy Services,Inc. The power plant and maintenance buildings will be supported at grade with passive refrigeration designed to prevent degradation of the permafrost.An option to house the power plant on two barges,moored within an artificial harbor is included in this report.The administration building, staff housing and cooling towers shall be supported by thermo helix-piles with passive refrigeration designed to provide foundation support in permafrost.A 78-acre cooling lake south of the site may be substituted for the cooling towers,and we have included that option in this report. The coal storage area will be located east of the power plant facility,and will consist of a stockpile that encompasses approximately 16 acres.The stockpile will be covered with either an air-supported structure or a metal building,to contain fugitive dust and provide rain and snow protection.Either structure will be founded on driven steel piling.The stockpile may or may not be underlain with a containment liner,depending on permit requirements.If a liner is mandatory,the integrity of the permafrost shall be retained with a passive refrigeration system, or the site will be stabilized by pre-thawing the permafrost,depending on the thaw stability of the underlying soils.If a liner is not mandatory,the site will be leveled with a layer of compacted sand and allowed to thaw and settle. =a EILCMF.. Bethel,Alaska Coal Fired Power Plant Conceptual Design Report The 3,000,000 gallon bulk fuel tank farm will be located near the power plant modules and will consist of four tanks,each measuring 60 feet in diameter and 40 feet high,with a nominal storage capacity of 800,000 gallons each.The tanks will be filled with No.1 diesel fuel.The bulk fuel tanks shall be founded on concrete ringwalls that bear on an insulated fill pad with a passive refrigeration thermo syphon system installed to preserve the permafrost.The thermo syphons will have hybrid condenser units that allow for connection to an active refrigeration system should the need arise in the future. Two 12,000 gallon double-walled intermediate/day fuel tanks,a 700,000 gallon raw water tank, and an 80,000 gallon demineralized water tank will be located inside the heated power plant or within a separate heated building if the power plant is barge mounted. A coal and fuel barge off-loading dock with a marine header will be located on the west bank of the Kuskokwim River.The dock design was developed by Peratrovich,Nottingham and Drage,Inc.for the Donlin Creek Mine Late Stage Evaluation Study'.The coal will be offloaded with a barge unloading system moored to the dock during the summer,and moved to a protected anchorage in the river during the winter.The coal will be transported to the storage facility by a pile supported conveyor system.The marine header will connect to a 4-inch diameter pipeline to fill the tanks at the bulk fuel facility.The barge season in Bethel runs from June throughSeptember. Budget Construction Cost Estimates for the proposed site development,building foundations, coal storage area,3,000,000 gallon bulk fuel facility,intermediate/day fuel tanks,water tanks, access roads,pipelines and coal and fuel barge off-loading dock are as follows: ¢Power Plant &Buildings,Founded on Permafrost $21,000,000 +Barge Mounted Power Plant Option $13,800,000 ¢3,000,000 Gallon Bulk Fuel Facility $4,125,000 ¢Lined Coal Storage w/Maintaining Permafrost Integrity $19,200,000 ¢Lined Coal Storage w/Pre-thaw of Permafrost $15,800,000 *Unlined Coal Storage w/Allowing Natural Thaw of Permafrost $7,300,000 *Cooling Lake Option $5,450,000 These estimates are based on competitively bid construction costs with a 15%contingency. Additional costs for design,permitting and construction management of the site development are estimated at $1,350,000.An additional cost of $250,000 will be required for the cooling lake option.Design and construction of the power plant equipment,buildings,conveyor, stacker/reclaimer and barge unloading systems,as well as,land purchase,lease and right-of-waycostsarenotincludedinthesefigures. 30 E\LcMF. Bethel,Alaska Coal Fired Power Plant Conceptual Design Report TABLE OF CONTENTS EXECUTIVE SUMMARY .EX-1 I.INTRODUCTION 1 Il.|APPLICABLE CODES AND REGULATIONS 1 Il.SITELOCATION 1 COMMUNITY FLOOD DATA 2 V.FILL MATERIAL,GRAVEL &ARMOR ROCK 2 VI.POWER PLANT &ASSOCIATED BUILDINGS 2 VI.BARGE MOUNTED POWER PLANT OPTION 3 VIII.COAL STORAGE FACILITY 4 COOLING LAKE OPTION | 5 X.3,000,000 GALLON BULK FUEL FACILITY | 5 INTERMEDIATE/DAY FUEL TANKS &WATER STORAGE TANKS.ccscsccscsssoon5 XII ACCESS ROADS 6 XIII.COAL AND FUEL OFF-LOADING DOCK | 6 _XIV.PERMITTING 6 XV.BUDGET COST ESTIMATES .9 XVI.REFERENCES .10 APPENDICES: Appendix A:Site Locations Appendix B:Flood Hazard Data Appendix C:Conceptual Design Drawings Appendix D:Construction Budget Cost Estimates E)LCMF. Bethel,Alaska Coal Fired Power Plant Conceptual Design Report L INTRODUCTION This report has been prepared for Nuvista Light &Power,Co.under contract with Bettine,LLC, to provide a conceptual level design and budgetary cost estimate for the site development,access roads,foundations,coal storage area,bulk fuel systems and offloading dock for a new coal fired power generation plant located in Bethel,Alaska.The proposed power plant will consist of two 48-megawatt coal fired steam turbines and one 46-megawatt diesel fired combustion turbine.A 16-acre coal storage area,a 3,000,000 gallon bulk fuel tank farm,two 12,000 gallon double- walled intermediate/day fuel tanks,and a 700,000 gallon raw water tank and an 80,000 gallon demineralized water tank also comprise the facility. Included with the report are basic feasibility level conceptual design drawings for the site development,access roads,coal and fuel storage,piping,and a coal and fuel barge offloading dock.Also included are permitting requirements for the scope of work identified above,flood hazard information and budget cost estimates. No site visit,fieldwork,or geotechnical investigation has been performed for this project.In addition,no geotechnical or survey information is available for the proposed location.A review of overhead aerial photographs was conducted,and engineering analyses have been made under the assumption the site is underlain by ice-rich warm permafrost.Site locations and coal and fuel quantities were provided by Bettine,LLC.The site layout,water tank sizes,and power generation equipment weight loads were provided by Precision Energy Services,Inc.(PES). Climate data was obtained from the Alaska Engineering Design Information System (AEDIS). II.APPLICABLE CODES AND REGULATIONS The design of a new power plant facility,roads,dock,foundations and fuel systems are controlled by the following State of Alaska and Federal codes and regulations: ¢2000 International Fire Code as adopted by 13 AAC 50 ¢2000 International Building Code as adopted by 13 AAC 50 +State of Alaska Fire and Life Safety Regulations (13 AAC 50) ¢«ADEC Hazardous Substance Regulations (18 AAC 75) ¢ADEC Air Quality Regulations (18 AAC 52) ¢Regulatory Commission of Alaska (RCA)Certification (3 AAC 42.05.221) ¢EPA Oil Pollution Prevention Regulations (40 CFR Part 112) ¢EPA Storm Water Discharge Regulations (40 CFR Part 122) ¢U.S.Army Corps of Engineers Wetlands and Navigable Waters Regulations (33 CFR Part 328 and 329) Il.SITE LOCATION The proposed site location for the power plant facility was provided by Bettine,LLC.The site will be approximately 6000 feet south of the City of Bethel Petroleum Port,and approximately 1650 feet west of the nearest point to the Kuskokwim River.An access road will connect to a private spur road south of Standard Oil Road.An access road,a coal conveyor transport system, and a 4-inch diameter pipeline will connect to the proposed coal off-loading dock and marine --GLCMF. Bethel,Alaska Coal Fired Power Plant Conceptual Design Report header approximately 3500 feet south of the City Petroleum Port.The proposed power generation site,access roads,dock,coal storage area and bulk fuel tank farm locations are shown in Appendix A. IV.COMMUNITY FLOOD DATA The U.S.Army Corps of Engineers -Flood Plain Management Services ALASKAN COMMUNITIES FLOOD HAZARD DATA 2000 publication indicates that the community of Bethel is participating in NFIP status,and there is a Flood Insurance Study (FIS)available.The published Flood Insurance Rate Maps (FIRM)show detailed flood information,and can be purchased from the Federal Emergency Management Agency (FEMA).The last flood event was in 1991,and the worst flood event was in 1988. A revised Flood Insurance Study (FIS)was published by FEMA in 1984.The FIS is included in Appendix B.The publication lists the 100-year flood elevation at 17.1 feet.The proposed land based power plant site elevation is around 50 feet,as interpolated from USGS Bethel (D-8), Alaska Quadrangle,1954 (Limited Revision 1985).The proposed barge mounted power plant will be about the same elevation as the river.The actual site elevations will need to be determined by a design survey.The access roads and dock may be subject to flooding and riverbank erosion.: V.FILL MATERIAL,GRAVEL &ARMOR ROCK Local fill material consists of a fine-grained silty dune sand that is mined from pits in Bethel. Material with less than 20%passing the number 200 sieve size,and a Corps of Engineers frost classification of F3 can be obtained through selective mining.The present borrow sites are near the airport,with a haul distance to the proposed site of 3 to 5 miles one way. The large quantity of fill material needed for this project may justify developing a borrow source near the site.An intensive geotechnical materials investigation will be required to identify a suitable source,and additional permitting will be needed to develop the material site. Gravel is imported to Bethel by barge.Presently,barges routinely deliver 4500 tons (approximately 2500 cubic yards)of gravel per shipment.Most of the gravel delivered is mined in Aniak,Kalskag,or Platinum. Armor rock is also imported by barge.The closest quarries are in Kalskag and Platinum. VI.POWER PLANT &ASSOCIATED BUILDINGS Since the proposed site is assumed to have thaw unstable,ice-rich soils,the buildings must be supported on foundations that maintain the thermal stability of the existing ground to prevent thaw settlement.The steam turbines and boilers have high foundation loads;therefore,the power plant building should be supported at grade on a concrete slab with grade beams connected to concrete footings.The concrete slab and footings shall bear on a compacted fill pad of the local sand.The maintenance shop will have high floor loads and should also be E\LCMF. Bethel,Alaska Coal Fired Power Plant Conceptual Design Report founded in the same manner.To maintain the frozen ground conditions and prevent thaw settlement under the heated buildings,a layer of rigid board insulation and a passive refrigeration,thermo syphon flat loop system shall be installed under the buildings to preserve the integrity of the permafrost.The system uses the phase change properties of CO to remove heat from the sand fill whenever the air temperature is below freezing.The thermo syphons will be fabricated with hybrid condenser units that allow for connection to an active refrigeration system should the need arise in the future.Conceptual design drawings of the power plant and maintenance shop layouts and foundations are shown in Appendix C. The administration building,staff housing,and cooling towers shall be supported by thermo helix-piles with passive refrigeration designed to provide foundation support in permafrost.The piles will also be fabricated with hybrid condenser units that allow for connection to an active refrigeration system.Conceptual design drawings of the pile supported structures are shown in Appendix C. A fill pad of the local sand will be placed under and around the buildings,and capped with an 8- inch thick sand and gravel surface.The sand fill shall be 6.5 feet thick under the power plant and maintenance buildings,and shall be 4.5 feet thick under the pile-supported buildings,except where grade changes are not desirable.The fill shall extend around the perimeter of the buildings to provide access for vehicles and equipment.The fill pad will be sloped to provide positive drainage away from the buildings. Vil.BARGE MOUNTED POWER PLANT OPTION The power generation equipment could be mounted on two barges that will be moored in an artificial harbor constructed next to the Kuskokwim River.The harbor will be created by removing the underlying soils in a low area that is south of a bluff near the proposed site,and by building an earthen dike from the excavated soils to separate the harbor from the river.The harbor could be allowed to freeze each winter,or,the water could be used for supplemental cooling and discharged back into the harbor to keep it ice free.A site plan for the barge mounted power plant option is shown in Appendix A.Conceptual design drawings are shown in Appendix C. Excess soils that are excavated from the harbor and not used for the embankment construction, could be used for fill pad and road construction if they are suitable.If they are not suitable for construction,a disposal site will need to be developed. To prevent erosion of the earthen dike,the toe of the dike should be keyed into the supporting soils and toe drains should be constructed.The entire dike should be covered with a gravel surface and the riverfront should be lined with armor rock.Both the gravel and the armor rock will need to be imported to Bethel.Ice forces on the riverside of the embankment will be extensive.Articulating concrete mats may be needed in addition to armor rock at areas that receive high ice forces,such as the abutment where the dike meets the bluff,the embankment corner and within the tidal zone of the river. (LCMF. Bethel,Alaska Coal Fired Power Plant Conceptual Design Report The barges could be moored to a center pier that is supported on driven piles.Additional moorage could be obtained by installing dolphins at the corners of the barges.If the harbor area is underlain by permafrost,as assumed,the piles will have to be driven deep enough to resist the drawdown forces as the permafrost thaws,as well as the lateral wind loads on the barges.The moorage will also need to adjust for tidal influences if the harbor and river are hydraulically connected.: Separating the harbor from the river,in essence,incorporates the construction of a dam,and therefore,may need review and approval from the State of Alaska Dam Safety Office if it meets the criteria for State of Alaska jurisdiction.If surface drainage into the harbor is extensive,a hydraulic connection between the river and harbor may need to be constructed.Large culverts or a controlled spillway are two methods that could be utilized.An extensive geotechnical investigation and a hydrographic survey will be necessary to determine the design. Vill.COAL STORAGE FACILITY The coal storage facility will encompass approximately 16 acres,and will contain approximately 400,000 tons of coal.The stockpile,after the final barge has delivered for the season,will be approximately 35 feet tall.The stockpile will be covered with either an air supported fabric or metal building to protect it from rain and snow and contain the fugitive dust from the stockpile. The coal will have properties that will not make it susceptible to spontaneous combustion, according to Bettine,LLC.Since the coal will be covered and will not require continuous saturation to inhibit spontaneous combustion,very little leachate is expected to emit from the stockpile. The stockpile will bear on a fill pad of the local sand.The building and stockpile is expected to be heated to maintain a temperature of approximately 20°F during the winter.Even though that temperature is below freezing,the stockpile itself will contain enough residual heat that will cause the underlying permafrost to thaw.If the operating permit requires a containment liner be installed under the stockpile,the permafrost must be either maintained or prethawed prior to installation of the liner.Ifa liner is not required,the permafrost can be allowed to thaw naturally under the stockpile.Any leachate emitted from the stockpile may require collection and treatment prior to disposal,depending on the permit requirements. The air supported fabric or metal building shall be supported on steel piling driven into the underlying permafrost.The piles shall have enough frictional capacity to resist overturning and frost heave forces.Steel,12-inch nominal pipe piles on 40-foot centers,driven to a depth of 60 feet below the top of thefill pad will support the building. A 450-metric ton bucket wheel stacker/reclaimer will be covered by the building.The stacker/reclaimer rides on rails that can only tolerate small differential movements.If a liner is required,the stacker/reclaimer will be supported on concrete footings that are 12.5 feet square and 2 feet thick.If a liner is not required,the stacker/reclaimer will need to be supported on thermo helix-piling that are connected to an active refrigeration unit to prevent settlement as the permafrost thaws.The 160 horsepower active refrigeration system will have a power requirement of 1600 kilowatt-hours per day. 4 ()LCMF.. Bethel,Alaska Coal Fired Power Plant ,Conceptual Design Report The coal will be transported by a conveyor system from the storage facility to the bunkers. Another conveyor system will transport the coal from the barge off-loading dock to the storage area.The conveyors shall be supported on driven steel piling.The piling shall be 8-inch nominal steel pipe,driven to a depth of 40 feet and spaced 80 feet on center.Conceptual design drawings showing the layout of the coal storage facility and conveyors are shown in Appendix C. IX.COOLING LAKE OPTION The steam generated from the power plant can be cooled either with the proposed cooling towers,or in a 78-acre cooling lake located approximately 2000 feet south of the site.Pipe size and flow rates for the cooling lake option were provided by PES.The heated water will be transported to the cooling lake in a 48-inch diameter pipe and discharged on the west shore. Cool water will be pumped from the east shore through a 48-inch diameter pipe.Two,1000 horsepower pumps will be located at the lake,one in use,and one for backup and reserve when the primary pump is being serviced.The pumps shall be enclosed in a heated pumphouse that is founded on driven piles.The pipelines shall be supported above grade on bents supported by driven steel piling.The cooling lake and pipeline layouts are shown in Appendix A. X.3,000,000 GALLON BULK FUEL FACILITY The bulk fuel facility will consist of four uninsulated tanks,each measuring 60 feet in diameter by 40 feet high with a nominal storage capacity of 800,000 gallons.The tanks will store No.1 diesel,which has a lower pour point temperature than No.2 diesel,and therefore will not require added heat.The tanks shall be welded steel in accordance with the American Petroleum Institute (API)Standard 650.The tanks will be founded on concrete ring walls that bear on a compacted fill pad of the local sand.A layer of rigid board insulation and a passive refrigeration,thermo syphon flat loop system shall be installed in the pad to preserve the underlying permafrost. Secondary containment of the fuel tanks will consist of a surface installed primary membrane liner placed on top of earthen dikes constructed from the local sand,and capped with a layer of sand and gravel.Conceptual design drawings of the bulk fuel facility are shown in Appendix C. XI.INTERMEDIATE/DAY FUEL TANKS &WATER STORAGE TANKS A transfer pump will deliver the fuel from the bulk fuel facility to two 12,000 gallon double- walled intermediate tanks housed inside the power plant building,or a separate heated building if the power plant is barge mounted.The intermediate fuel tanks shall be welded steel in accordance with UL Standard 142.A standby transfer pump is included in this design,so that apumpisalwaysavailableduringservicing.The delivery pipeline will be a 4-inch steel pipesupportedabovegradeonhelicalpiersorpiling. The fuel will be heated to the specified temperature of 70°F in the intermediate tanks prior to entering the turbines.The intermediate tanks will contain glycol heat circulation loops,and will require 8600 BTU's to heat 2800 gallons of fuel per hour per degree to 70°F. A 700,000 gallon raw water tank,and an 80,000 gallon demineralized water tank,will be located inside the power plant building or a separate heated building if the power plant is barge mounted. KLCMF. Bethel,Alaska Coal Fired Power Plant Conceptual Design Report The sizes of the tanks were provided by PES.Both tanks shall be welded steel in accordance with AWWA Standard D100.The tanks will be founded on concrete ringwalls integrated into the power plant foundation. XII.ACCESS ROADS An access road will connect the proposed site to Bethel via a private spur road that intersects Standard Oil Road west of the City Petroleum Dock.Other roads will connect the facility with the off-loading dock on the river and with the proposed cooling lake to the south.The access roads will be constructed as an embankment of the local sand,and capped with an 8-inch thick sand and gravel surface.The embankment shall be 4.5 feet thick to limit seasonal thaw within the existing active layer.Conceptual design drawings of the access roads are included in Appendix C. XIII.COAL AND FUEL OFF-LOADING DOCK A coal and fuel barge off-loading dock and marine header will be located on the west bank of the Kuskokwim River,approximately 3500 feet south of the City of Bethel Petroleum Port.The dock design is similar to the open cell sheet pile design that was included in the 1999 DonlinCreekMine,Late Stage Evaluation Study'by Peratrovich,Nottingham &Drage,Inc.The cost estimate for the dock is also based on that report. The coal will be off-loaded with a barge unloading system that spans the coal barge,and uses a bucket elevator system to remove the coal.The unloader shall be moored to the dock during the barge season,and then stored in a protected area of the river during the winter to prevent ice | damage.A pile supported conveyor system will transport the coal from the dock to the storage area. The marine header will connect to a 4-inch diameter pipeline for fuel transfer to the bulk fuel facility.The pipeline will be supported above grade on helical piers or piling.Conceptual design drawings of the coal and fuel barge off-loading dock,barge unloading system,conveyor and pipeline are shown in Appendix C. The barge season in Bethel runs from June through mid-September.At present,the largest barge delivering fuel to Bethel is 344 feet long,and can deliver a maximum of 2,100,000 gallons of fuel with a draft of 11.5 feet.The barge is owned by Seacoast Towing and delivers fuel to the Yukon Fuel Company. XIV.PERMITTING The power plant,coal storage facility,bulk fuel facility,access roads,and barge off-loading dock will require the following: 1.A spill contingency plan designed to satisfy Federal,Facility Response Plan (FRP)and State,Alaska Department of Environmental Conservation -Oil Discharge Prevention and Contingency Plan (ADEC C-Plan)requirements.It must be approved by the EPA,the CILCMF.. Bethel,Alaska Coal Fired Power Plant Conceptual Design Report U.S.Coast Guard and ADEC.The EPA requires an approved FRP from each facility with storage capacity of 42,000 gallons or more,and which receives oil by marine delivery.The Coast Guard must approve a FRP from each fuel facility that can transfer oil to or from vessels with oil cargo capacity of 250 barrels (10,500 gals.).ADEC requires approval of an ODPCP prior to operations at facilities with storage capacities of 420,000 gallons or more.The C-Plan must satisfy the requirements of Title 46,Chapter 04,Section 030 of the Alaska Statutes (AS 46.04.030),and meet the format requirements listed in the Alaska Administrative Code,Chapter 75,Section 425 (18 AAC 75.425). The ADEC approval process includes public comment and a Coastal Zone Management review.The plan must consist of four parts: a.The RESPONSE ACTION PLAN presents the fundamental elements of spill response.It outlines initial actions and spill reporting procedures,provides emergency phone numbers,and presents spill response strategies. Ob.The PREVENTION PLAN describes the facility design,maintenance and operating procedures that contribute to spill prevention and early detection. Potential spills are identified. c.The SUPPLEMENTAL INFORMATION section includes a description of the facility and its response command structure,as well as environmental data and response equipment considerations. d.The BEST AVAILABLE TECHNOLOGY section demonstrates that the facility complies with the State of Alaska requirements of 18 AAC 75.425(e)(4)and 18 AAC 75.445(k). 2.A Marine Transfer Operations Manual which demonstrates that the vessel/barge transfer procedures and dock equipment comply with Coast Guard requirements.The Manual must be approved by the U.S.Coast Guard.It confirms that the operator's marine transfer procedures and equipment comply with the requirements listed in 33 CFR,Parts 154 and 156.The manual format and content requirements are listed in 33 CFR,Part 154,Subpart B,which lists 23 items that must be addressed.Two copies of the manual are to be submitted to the Coast Guard.Upon approval,one copy of the manual will bereturnedmarked"Examined by the Coast Guard".Copies of the manual are to be maintained at the facility so that they are,"current,available for examination by the USCG Captain of the Port (COTP),and readily available for each facility person in charge while conducting an oil transfer operation”. 3.A Spill Prevention Control and Countermeasure Plan.(SPCC)that is certified by a licensed Engineer (P.E.),and confirms that the facility complies with the EPA spill prevention and operating requirements.The oil pollution prevention regulations require the preparation of a SPCC for all facilities with aboveground oil storage of more than 1,320 gallons and which,due to their location,could reasonably be expected to discharge oil in harmful quantities into or upon the navigable waters or adjoining shorelines of the United States.The SPCC Plan must be carefully thought out and prepared in accordance with good engineering practices to prevent and mitigate damage to the environment from G)LCMF. Bethel,Alaska Coal Fired Power Plant Conceptual Design Report oil spills.It must address all oil "containers”/tanks with a capacity of 55 gallons or more.The Plan must be certified by a licensed Professional Engineer,and must also have the full approval of management at a level with authority to commit the necessary resources.Facility management is to review and evaluate the Plan at least once every five years,and update it whenever there is a change in facility design,construction, operation,or maintenance that could materially:affect the potential for discharge to navigable water.EPA regulations further stipulate,in 40 CFR,Part 112.4,that a written report must be submitted to the Regional Director of the EPA when a facility has either one spill greater than 1,000 gallons,or two spills in excess of 42 gallons in a 12-month period that enter navigable waters.The SPCC Plan need not be submitted to,or approved by,the EPA,but must be maintained at the facility and available for agency inspection. 4.A Fire Marshal review requires submittal of a complete set of construction documents to the State of Alaska,Department of Public Safety,Division of Fire Prevention (Fire Marshal)for plan review and approval.The State Fire Marshall then issues a Plan Review Certificate to verify compliance with adopted Building,Fire and Life Safety codes.Final stamped drawings must be submitted along with the application fee for project review.Anticipate a minimum of one month before comments may be received from the Fire Marshall. 5.A U.S.Army Corps of Engineers Section 10,33 U.S.C.403 permit is required prior to the accomplishment of any work in,over,or under navigable waters of the United States, or which affects the course,location,condition or capacity of such waters.The Kuskokwim River is defined as a navigable waterway.Typical activities requiring Section 10 permits include: a.Construction of piers,wharves,breakwaters,bulkheads,jetties,weirs,dolphins, marinas,ramps,floats,intake structures and cable or pipeline crossings. b.Work such as dredging or disposal of dredged material. c.Excavation,filling,or other modifications to navigable waters of the U.S. 6.The National Marine Fisheries Service (NMFS),U.S.Fish and Wildlife Service and 'Alaska Department of Fish and Game or Department of Natural Resources,will review the 403 permit to determine if there is an impact on the anadromous fish population in the Kuskokwim River.They may place restrictions on construction timing or methods.The U.S.Fish and Wildlife Service will also determine if the project impacts any endangered species. 7.A U.S.Army Corps of Engineers wetlands permit is required to place fill material on existing soils before construction begins.Section 404 of the Clean Water Act requires approval prior to discharging dredged or fill material into the waters of the United States, including wetlands.Wetlands include tundra,permafrost areas,swamps,marshes,bogs and similar areas.Typical activities requiring Section 404 permits include: a.Discharging fill or dredged material in waters of the U.S.,including wetlands. E\LCMF. Bethel,Alaska Coal Fired Power Plant Conceptual Design Report b.Site development fill for residential,commercial,or recreational developments. c.Construction of revetments,groins,breakwaters,levees,dams,dikes and weirs. d.Placement of riprap and road fills. 8.The Environmental Protection Agency (EPA)National Pollution Discharge Elimination 10. 11. XV. System (NPDES)has jurisdiction for the following items: a.Operators of construction projects disturbing five acres or more must develop a Storm Water Pollution Prevention Plan (SWPPP),and submit the SWPPP as well as a Notice of Intent (NOJ)to the EPA and ADEC for review prior to the start of construction activity. b.Non-Stormwater Discharge Assessment Certification is required to discharge any process wastewater which would include the water discharged into the proposed cooling lake or coal pile effluent. c.Approval under the Multi-Sector General Permit (MSGP)for the State of Alaska is required for storm water discharges associated with industrial activity.Steam electric power generation facilities,including coal handling sites fall under Category VII of the MSGP. The Bethel City Planning Department will review the Fire Marshall,AK DEC and Army Corps of Engineers permits and may add other requirements to the project,such as access and setback from property lines.The City of Bethel also has a General Permit issued by the Corps of Engineers. A review by the Federal Aviation Administration (FAA).Power plants located less than 5 miles from a runway or airport,such as this project,should complete Form 7460-1, "Notice of Proposed Construction or Alteration”,and submit all necessary elevation and height of structure information to the FAA (Alaska Region)prior to construction.The FAA reviews the power plant and determines whether the construction or project will present a hazard to air traffic in the vicinity.The FAA has typically provided project determinations within one week of the completed form submittal. A review by the State Historic Preservation Office (SHPO)is required,under Section 106 of the National Historic Preservation Act,for any State or Federally funded project that has the potential of disturbing cultural resources. BUDGET COST ESTIMATES Budget Construction Cost Estimates have been prepared for the construction of the proposed site development,building foundations,coal storage area,3,000,000 gallon bulk fuel facility, intermediate fuel tanks,water tanks,access roads,pipelines,and coal and fuel barge off-loading dock.The estimates were developed based on historical pricing for similar work in Bethel with a 6.5%overhead for profit,bonding and insurance.A construction contingency of 15%has been factored into the estimates.A freight rate of $0.20 per pound to Bethel was provided by Bettine, \LCMF.. Bethel,Alaska Coal Fired Power Plant ;Conceptual Design Report LLC.These estimates do not include costs for the buildings,power generation equipment, conveyors,stacker/reclaimer,or coal barge unloading system;their transportation to Bethel,nor their mobilization to the site and setup.The estimates do not include the costs of land purchase, leases or right-of-ways.The Budget Construction Cost Estimates are summarized below.A breakdown of the construction costs is included in Appendix D. ¢Power Plant &Buildings,Founded on Permafrost $21,000,000 *Barge Mounted Power Plant Option .$13,800,000 ¢3,000,000 Gallon Bulk Fuel Facility $4,125,000 *Lined Coal Storage w/Maintaining Permafrost Integrity $19,200,000 ¢Lined Coal Storage w/Pre-thaw of Permafrost $15,800,000 ¢Unlined Coal Storage w/Allowing Natural Thaw of Permafrost $7,300,000 ¢Cooling Lake Option $5,450,000 Cost estimates have also been prepared for the design,permitting and project management for the proposed power plant facility,coal storage area,bulk fuel facility,intermediate fuel tank,raw water tank,access roads,pipelines,and coal and fuel barge off-loading dock.These estimates do not include costs for the power plant equipment,buildings,conveyor,stacker/reclaimer and barge unloading systems,as well as,land purchase,lease and right-of-way costs.The estimates were developed based on historical pricing for similar work in Bethel.The design,permitting and construction management cost estimates are summarized below.The cost is the same for either the power plant founded on permafrost or barge mounted option. -Estimated Design Cost | $900,000 *Estimated Permitting Cost $100,000 ¢Estimated Project Management Cost $350,000 The cooling lake option requires additional design,permitting and project management.The following cost estimates were developed for the cooling lake option. *Estimated Design Cost $100,000 ¢Estimated Permitting Cost $50,000 ¢Estimated Project Management Cost $100,000 XVI.REFERENCES 'Peratrovich,Nottingham and Drage,Inc.,Donlin Creek Mine Late Stage Evaluation Study,prepared for Placer Dome Technical Services,Ltd.,March 1,1999. CILCMF..10 APPENDIX A SITE LOCATIONS APPROXIMATE LAKE BOUNDARY J2 72» COOLING LAKE DISCHARGE 24-2000 SHEET: REFERENCE AEROMAP BETHEL 3 5 AERIAL PHOTOGRAPHY DATED 6: LAND BASED COAL POWER PLANT FEASIBILITY STUDY BETHEL,ALASKA "WS MH DRAWN BY: CHECKED BY:1200'1 8/25/03DATE: SCALE: (807)273-1830 Me= 139 E.51st Ave.«Anchorage,Alaska 99503 - APPROXIMATE LAKE BOUNDARY DISCHARGE REFERENCE AEROMAP BETHEL 3-5 AERIAL PHOTOGRAPHY DATED 6-24-2000 CIF... 139 E.Stst Ave.»Anchorage,Alaska 98503 -(907)273-1830 BARGE MOUNTED COAL POWER PLANT FEASIBILITY STUDY BETHEL,ALASKA DATE:8/25/03 DRAWN BY:WS SHEET:2 SCALE:1°=1200'CHECKED BY:MH W.O.No:03-014 APPENDIX B FLOOD HAZARD DATA Flood Hazard Data:Bethel Page 1 of 1 Bethel |City Office:(907)543-2047 |Revised:March 2000 STATUS 2"class city LAST FLOOD EVENT 1991 POPULATION 5,471 : FLOOD CAUSE BUILDINGS ELEVATION RIVER SYSTEM Kuskokwim River FLOOD OF RECORD COASTAL AREA none FLOOD CAUSE. ELEVATION NFIP STATUS participating WORST FLOOD EVENT 1988 FLOODPLAIN REPORT FLOOD CAUSE FLOOD INSURANCE STUDY yes FLOOD GAUGE no Comments:Published Flood Insurance Rate Maps (FIRM)show detailed flood information.FIRM can be purchased from Federal Emergency Management Agency (FEMA)at FEMA Maps Flood Map Distribution Center 6730 (A-G)Santa Barbara Court Baltimore,MD 21227-5623 ;Toll free:800 -358-9616 FIRM Panels 0008 B,0009 B,0012 B,0013 B were corrected on 3 June 1994 by FEMA to correct the datum reference from the NGVD to MLLW.The Flood Insurance Rate Map (FIRM),revised February 15, 1985,for the community indicates a 100-year,or Base Flood Elevation (BFE)of 17 ft MLLW. Pagemaster|(907)753-2622 Floodplain Manager|(907)753-2610 http://www.poa.usace.army.mil/en/cw/fld_haz/bethel.htm .6/7/2003 "a:i eyeOFBETHEL,Be a,"ALASKA os a ns /BETHEL.DDIVISION.8 .ar 'eos _yo Lae on -.L te ves AS go ' pte REVISED:FEBRUARY.15,1984 Pe Ee 'Federal|EmergencyManagement Agency:"COMMUNITY NUMBER -0201 04 © 1.0 2.0 3.0 4.0 3-0 6.0 7.0 8.0 TABLEOF CONTENTS INTRODUCTION.2 ccscccccccccsc cect nescccccccnencane @ Purpose of Study....cseecesseees ones weese saeecnreeeeeesnevenearos COOrdination..cc ceccccccccvccenacccasccacccvsvcaccessecsces 1 Scope OF Study..ccscccccscccccccvccsccccceccsscesccssacascces -2 Community Description...ccc ecccvccccccccccnccsccccccescccee 3 Principal Flood ProblemS.......cceccceccccnnesvaccccccnnce . A Flood Protection MeASULES..cecescecccscccnccccccccesecccece ENGINEERING METHODS.....scececceceees sec w cence cescacccccacccewces 3.1 and 3.2 Hydrologic and Hydraulic AnalySeS.......ccencececes FLOOD PLAIN MANAGEMENT APPLICATIONS ...sccccccecccescsnsccccsesvece 4.1 FlOOd BOUNdALLCS.ccc cw ccna c aw ccacn ences acne eaee as esaseceene 4.2 op Kovels (7;Weire INSURANCE APPLICATION.cr ccccccscccnccvccaccesecsesvenvescnesesens 1 Reach DeterminationS..sescccccnascssacacnsasecsnsacencscces 2 Flood Hazard FactorS..csccnwcccscovcvcessesscccnnscesessaee 3 Flood InSuranCe JONES..cssceccrasaccccccccsesansncccenccees 4 Flood Insurance Rate Map DeSCription....ccesneccccceccccsee OTHER STUDIES «2.caccccc wcrc rear er eee eee ee eee cee eee een eee ereeeecaene LOCATION OF DATA...ccecceccccccenccccncccessensssssevccnscsncncce BIBLIOGRAPHY AND REFERENCES ..cccccccsccnccsnsccncscesacccesecccee 1.1 : 1.2 Authority and AcknowledgmentS.....ccccceascennccnnscesvvcen. 1.3 mWWeOor- ]J310 TABLE OF CONTENTS (Cont'd) Page FIGURES Figure 1-Vicinity Mapecccecccccccceccccuceccedccccccecuccacccapeccece,2 TABLES Table 1 -Summary of Elevations eccecccccccccvcccccccsccccccevseccscssese 5 Table 2 -Flood Insurance zone Data.ccccccccccecccccsccasecsenccscccces _9 Exhibit 1 -Flood Insurance Rate Map Index Los -- Flood Insurance Rate Map . ii FLOOD INSURANCE STUDY 1.0 INTRODUCTION 1.1 Purpose of Study 7 This Flood Insurance Study report has been prepared to revise and update a previous Flood Insurance Study/Flood Insurance Rate Map for the City of Bethel,Bethel Division,Alaska,which was published on March 16,1976.This information will be used by Bethel to update existing flood plain regulations as part of the regular program of flood insurance by the Federal Emergency Manage- ment Agency.The information will also be used by local and regional planners to further.promote sound land use and flood plain develop- ment. In some states or communities,flood plain management criteria or regulations may exist that are more restrictive or comprehensive than those on which these federally supported studies are based. These criteria take precedence Over the minimum Federal criteria for purposes of regulating development in the flood plain,assetforthintheCodeofFederalRegulationsat44CFR,60.3. In such cases,however,it shall be understood that the State (or other jurisdictional agency)shall be able to explain these requirements and criteria., 1.2 Authority and Acknowledgments The source of authority for this Flood Insurance Study is the National Flood Insurance Act of 1968,as amended. The hydrologic and hydraulic analyses for this study were performed by the U.S.Army Corps of Engineers,for the Federal Emergency Management Agency,under Inter-Agency Agreement No.H-8-70.This work,which was completed in October 1980,covered all significant flooding sources affecting Bethel. 1.3 Coordination Various local officials and appropriate agencies were contacted for information in this study. 2.0 AREA STUDIED 2.1 Scope of Study This Flood Insurance Study covers the incorporated areas of the City of Bethel,Bethel Division,Alaska.The area of study is shown on the Vicinity Map (Figure 1). ANTAE$4,¢ 18 MILES:42 APPROXIMATE SCALE VICINITY MAP: FEDERAL EMERGENCY MANAGEMENT AGENCY CITY OF BETHEL,AK: .{BETHEL DIVISION}FIGURE 1 2.3 Selection of the portion of the community studiedby detailed methods was based upon availability of detailed mapping. Flooding from Kuskokwim River as it affects Bethel was analyzed by both detailed and approximate study methods.Approximate methods were also used to analyze low-lying areas of the community. Those areas studied by detailed methods were chosen with considera- tion given to all proposed construction and forecasted development through 1985. Approximate analyses were used to study those areas having a low development potential or minimal flood hazards.The scope and methods of study were proposed to and agreed upon by the Federal Emergency Management Agency and the City of Bethel. Community Description Bethel lies on the right bank of Kuskokwim River approximately 390 miles west of Anchorage,500 miles southwest of Fairbanks, and approximately 65 miles up Kuskokwim River from the Bering Sea.It is the hub of southwestern Alaska,as it has an airport Suitable for jet aircraft and is a port of call for oceangoing vessels on Kuskokwim River.It is the center of trade,transportation, @istribution,communication,administration,and education.Within the vast region servedby Bethel,there are 66 villages consisting of approximately 15,000 persons,95 percent of whom are either Eskimos or Athabascan Indians. Principal Flood Problems The flood-prone area of the community lies generally in the eastern and northeastern sections of the study area,while high ground extends to the north and southwest.. Eighty percent of the major residential and commercial areas have been inundated by floods in 'the past.Areas such as Browns Slough are the most flood prone and contain a heavy density of residential structures.Most commercial establishments within the flood-prone areas are located on somewhat higher ground.Flooding can occur from a combination of factors,including snowmelt and precipitation; however,the primary cause of flooding is ice jams. The Flood Plain Information report on Kuskokwim River in Bethel (Reference 1)lists overbank flooding at an elevation of 12.1 feet.However,there are several homes in a natural depression where the ground elevation is approximately 8.1 feet.Although the initial water elevation of 12.1 feet would theoretically produce overbank flooding,river ice usually forms a natural levee that keeps water out of these homes while others are flooded. 3.0 2.4 Flood Protection:Measures - The community does not have any flood protection measures nor does it exercise any flood-plain management. ENGINEERING METHODS . For the flooding sources studied in detail in the community,standard hydrologic and hydraulic study methods were used to determine the floodhazarddatarequiredforthisstudy.Flood events ofa magnitude which are expected to be equalled or exceeded once on the average during any °10-,50-,100-,or 500-year period (recurrence interval)have been selected as having special significance for flood plain management and for flood insurance premium rates.These events,commonly termed the 10-,50-, 100-,and 500-year floods,have a 10,2,1,and 0.2 percent chance, respectively,of being equalled or exceeded during any year.Although the recurrence interval represents the long term average period between floods of a specific magnitude,rare floods could occur at short intervals 'or even within the same year.The risk of experiencing a rare flood increases when periods greater than 1 year are considered.For example, the risk of having a flood which equals or exceeds the 100-year flood (1 percent chance of annual occurrence)in any 50-year period is approxi- mately 40 percent (4 in 10),and,for any 90-year period,the risk in- creases to approximately 60 percent (6 in 10).-The analyses reported here reflect flooding potentials based on conditions existing in the comunity at the time of completion of this study.Maps and flood eleva- tions will be amended periodically to reflect future changes. "3.1 and 3.2 Hydrologic and Hydraulic Andlyses Records of streamflow on Kuskokwim River have been maintained at Crooked Creek since June 1951 by the U.S.Geological Survey. Another gage was installed at McGrath in July 1963.Other miscella- neous measurements of Kuskokwim River are available-from the U.S. Geological Survey.These records have been supplemented by interviews with local residents,recovered high-water marks from previous floods,tide data from the U.S.Coast and Geodetic Survey,and records of ice jams by the U.S.Army Corps of Engineers.Using the foregoing records and correlating weather records with flows, it has been possible to develop a knowledge of flooding at Bethel. The height of the 100-and 500-year floods has been estimated to be 17.1 and 17.6 feet,respectively.The probabilities of flooding from high floodflowsand ice jams were combined. Elevations for floods of the selected recurrence.intervals on Kuskokwim River are shown in Table 1. Flooding Source and Location Kuskokwim.River At Bethel,Alaska Table 1."Summary of Elevations (Feet)Elevation 10-Year 50-Year 100-Year 500-Year 14.8 16.5 _17.1 17.6 4.0 The 100-year approximate analysis was based on historic floodinginformationandengineeringjudgment. All elevations are referenced to the Mean Low Water Datum (MLLW). Elevation reference marks uSed in the study are shown on the maps. FLOOD PLAIN MANAGEMENT APPLICATIONS The National Flood Insurance Program encourages State and local governments to adopt sound flood plain management programs.Therefore,each Flood Insurance Study includes a flood boundary map designed to assist communi- ties in developing sound flood plain management measures. 4.1 4.2 Flood Boundaries In order to provide a national standard without regional discrimina- tion,the 100 -year flood has been adopted by the Federal Emergency Management Agency as the base flood for purposes of flood plain management measures.The 500-year flood is employed to indicate additional areas of flood risk in the community.For each stream studied in detail,the boundaries of the 100-and 500-year floods have been delineated using the flood elevations determined at each cross section;between cross Sections,the boundaries were interpolated using topographic maps at scales of 1:1200 and 1:2400, with contour intervals of 2 and 5 feet (References 2 and 3).: Boundaries of the approximate flooding areas were delineated using the determined elevations and topographic maps at a scale of 1:63,360, with a contour interval of 25 feet (Reference 4). Flood boundaries are indicated on the Flood Insurance Rate Map (Exhibit 1).-On this map,the 100-year flood boundary corresponds- to the boundary of the areas of special flood hazards (Zones A and A5);and the 500-year flood boundary corresponds to the boundary of the areas of moderate flood hazards (Zone B).In cases where the 100-and 500-year flood boundaries are close together,only the 100-year flood boundary has been shown.Small areas within the flood boundaries may lie above the flood elevations and,therefore, not be subject to flooding;owing to limitations of the map scale,such areas are not shown. Floodways The floodway is the channel of a stream plus any adjacent flood plain areas that must be kept free of encroachment in order that the 100-year flood may be carried without substantial increases in flood heights. Because flooding in this community is tidal,no floodway was computedforKuskokwimRiver. INSURANCE APPLICATION In order to establish actuarial insurance rates,the Federal Emergency Management Agency has developeda process to transform the data from the engineering study into flood insurance criteria.This process includes the determination of reaches,Flood Hazard Factors,and flood insurance zone.designations for each flooding source studied in detail affecting the City of Bethel.. . 5.1 Reach Determinations Reaches are defined as lengths of watercourses or water bodies having relatively the same flood hazard.In tidal areas,reaches are limited to the distance for which the 100-year flood elevation does.not vary more than 1.0 foot.Using these criteria,one reach was required for the flooding source of Bethel.The location of this reach is shown on the Flood Insurance Rate Map (Exhibit 1). 5.2 Flood Hazard Factors (FHFs) The FHF is the Federal Emergency Management Agency device used to correlate flood information with insurance rate tables.Correla- tions between property damage from floods and their FHF are used to set actuarial insurance premium rate tables based on FHFs from 005 to 200. The FHF for a reach is the average weighted difference between the 10--and 100-year flood water-surface elevations e:pressed to the nearest one-half foot,and shown as a three-digit code. For example,if the difference between water-surface elevations of the 10-and 100-year floods is 0.7 foot,the FHF is 005;if the difference is 1.4 feet,the FHF is 015;if the difference is 5.0 feet,the FHF is 050.When the difference between the 10-and 100-year water-surface elevations is greater than 10.0 feet,accuracy for the FHF is to the nearest foot. 5.3 Flood Insurance Zones After the determination of reaches and their respective FHFs, the entire incorporated area of Bethel was divided into zones, each having a specific flood potential or hazard.Each zone was -assigned one of the following flood insurance zone designations: zone As Special Flood Hazard Areas inundated by the 100-year flood,determined by approximate methods;no base flood elevations shown or FHFs determined. zone AS:.Special Flood Hazard Areas inundated by the 100-year flood,determined by 'detailed methods;base flood elevations 6.0 7.0 shown,and zones subdivided according to FHFs. Zone B:Areas between the Special Flood Hazard Areas and the limitsof the 500-yearflood,including areas of the 500-year flood plain that are protected fromthe100-year flood by dike,levee, or other water control structure;also areas subject to certain types of 100 year shallow flooding where depths are less than 1.0 foot;and areas subject to 100-year flooding from sources with drainage areas less than 1 square mile. zone B is not subdivided. zone C:Areas of minimal flooding. The flood elevation differences,FHFs,flood insurance zones,and base flood elevations for each flooding source studied in detail in the community are summarized in Table 2. 5.4 Flood Insurance Rate Map Description The Flood Insurance Rate Map for Bethel is,for insurance purposes, the principal result of the Flcod Insurance Study.This map contains the official delineation of flood insurance zones and base flood elevation lines.Base flood elevation lines show the locations of the expected whole-foot water-surface elevations of the base (100-year)flood.This map is developed in accordance with the latest flood insurance map preparation guidelines published bytheFederalEmergencyManagementAgency.. OTHER STUDIES This study supersedes the previous Flood Insurance Study published for the City of Bethel (Reference 5).It also supersedes the Flood Plain Information report for Kuskokwim River prepared by the U.S.Army CorpsofEngineersin1968(Reference 1).This study is authoritative for the purposes of the National Flood Insur-- ance Program;data presented herein either supersede or are compatible with all previous determinations. LOCATION OF DATA 'Information concerning the pertinent data used in preparation of this study can be obtained by contacting the Natural and Technological Hazards Division,Federal Emergency Management Agency,Federal Regional Center, 130 228th Street,SW,Bothell,Washington 98011. .ws ELEVATION DIFFERENCE"FLOOD BASE FLOOD|IBETWEEN 1%(L00 YEAR)FLOOD AND FLOODING SOURCE PANEL?HAZARD ZONE ELEVATION ,10%2%0.2%|PACTOR FEET (MLLW)(10-YEAR)|(50-YEAR)|(500-YEAR) Kuskokwim River . Reach 1 0008 ,0009 -2.3 0.6 0.5 025 A5 17 0012,0013 1 Flood Insurance Rate Map Panel 2 weighted Average pounded to Nearest Foot ¢31avlFEDERAL EMERGENCY MANAGEMENT AGENCY . CITY OF BETHEL,AK(BETHEL DIVISION) FLOOD INSURANCE ZONE DATA KUSKOKWIM RIVER 8.0 BIBLIOGRAPHY AND REFERENCES 1. 2. U.S.Department of the Army,Corps of Engineers,Flood Plain Infor- mation,Bethel,Alaska,Kuskokwim River,December 1968 Air Photo Tech,Inc.,Topographic Maps,Scale 1:1200,Contour Interval 2 feet:Bethel,Alaska (1979) * Air Photo Tech,Inc.,Topographic Maps,Scale 1:2400,Contour Interval 5 feet:Bethel,Alaska (1979) U.S.Department of the Interior,Geological Survey,Topographic Maps,Scale 1:63,360,Contour Interval 25 feet,Bethel,AK C-8 (1954),Bethel,AK D-7 (1954),Bethel,AK D-8 (1954) U.S.Department of Housing and Urban Development,Federal Insurance Administration,Flood Insurance Study,City of Bethel,Alaska, 1976 10 APPENDIX C CONCEPTUAL DESIGN DRAWINGS ?<». "ayia.Sy i anto » SCH ' A.A A.A.A.A.rX A A.#of rf g bd |anr'ri 4 COMMER: anh (NE un "ay.a on Ls i 3 g (PROJECT LAYOUT C-2)KAMAE 1°=200° ]til tentEBzs£4 CONCEPTUAL , NUVISTA LIGHT &POWER CO.2)eT "|BLCMEagespkg LAND BASED COAL-3°el POWER PLANT FEASIBILITY STUDYBETHEL,ALASKA VuSVIV"I3HL3dAQNLS ALMIGISV34 LNV1d Y3MOd ssacisnsenesourvourenyve(a 2 vo aasv@ GNV7 on ae, gfe |. SADIE) = eay[ee'ODYSMOd 3 LHDSIT VLSIANN TWALd39NO9 ji3iiiyoa ac OCOQO0000OO00000OONMOOOO© VRISISIAISISITHAIAtGtgtAIgIaTPUTTUUcreercrarcrtrarera: (-)\FOUNDATION PLAN -POWER PLANT,MAINTENANCE BLDG,ADMIN BLDG,ASH SILO,CONVEYOR,AND COOLING TOWERXe77scat:r=oO VouSVIV"ISHL3¢dAGNLS ALMIGISV34 LNVId H3MOd cracteseyvnweey-mayorss 3'WOOaasva GNV? . om rage ies [. SWOT)|-__-able "OD HAMOd F LHSIT VLSIANN'WALAIONOSbees(ES:ba s2 TAN FARA BULK FUEL HLWON tH !! T thant Wait rgd Vebebatnd beleeninn VW ! Peeeedner ' ean I 1 I my 'my 'WI L LitivviTritt HHweyyvNeseFIATLOOPRADMATORS(TYP) Wauon ieea= =iiizi SEESSSDEEISSSSGES i Pp BEE 2 =: i s||° ° :Papp isslssSflSrssslliisiz= 4Eh|- Pe . \= 4P h ° ° to-E== === at RESSE=#=:E ESSEESESEESSESEAES fe pal p 4-F========F==5SSITlSa==H 4h '4 ° ty|° SI-E== - ey Po é °id PSESSEE: #5 Wi le an -- eee eee ee | poeFT °K Se ao oe=oy il |e : bo} *M. i ° e yy - v * g. |eb ide By. - Pp° : °f i °§ ° Py [ic]eabs Nk * ee . e > p>° ° hed e e p>° °i led e e j > >° ° Lad eo e b>}e ele lee se >| >e ele iwxk . ae :Frwr ()\EQUNDATION PLAN -FUEL TANK FARM &HOUSINGKees]sea:1"bo" C-3w= (2\FOUNDATION PLAN -COAL STOCKPILE BUILDING &CONVEYORtea)SCALE: POWER PLANT MAINTENANCE BUILDING 343-14 (2)\HOUSING SECTIONC-4)SCALE:1°=20° Ne me:FUT LoopCroteraePERMAFROSTRADATOR(TF)RADIATOR PERMAFROST CEOTERTME (2)POWER PLANT &MAINTENANCE BLDG SECTIONC47SCALE:1°=20° foe ruc howe --+-__FUEL Taw . i)puone2tg"0 io"Pa s [SYPHON '\Estar concnere4om LP *3 card28_i 23 "ee UNER hl J ise fe 2%,i d 25CeTSA4Peal4UT1 I LI LZ US T U 7 L Lf suo rae T ,S com|]eww niendraTraAN==-'-TNO FAL== PERMAFROST aouroR GEOTEXTME re : '(@\_FUEL TANK FARM SECTION 4)SNE:=2 HOUSING noUsNNG 8°GRAVELSURFACE oe a " z anTeoEaBI t \GEOTEXTAE A.LANDBASEDCOALPOWERPLANTFEASIBILITYSTUDYBETHEL,ALASKANUVISTALIGHT&POWERCO.CILCMF..CONCEPTUALRAW BY:WS CHECKED BY:MH leave:0/25/2008 :0m MUMEER:O5-Ot4 ORAWING TITLE: HFOUNDATION SECTIONS as|"9+ VRIRIFA AVAILxP?pe CRRA Yae 2 (2)ACCESS ROAD SECTION a AO RLIRCRT COSTE BIPLIT ER x COPTER1 Kes]scat:ree 23°fan4NUVISTALIGHT&POWERCO.LANDBASEDCOALPOWERPLANTFEASIBILITYSTUDYBETHEL,ALASKADISPENSINGSTATION :||iiACONCEPTUALN q i 800,000 800,000 ' GALLON TANK GALLON TANK i 5S / . i g lAf 16,75"emcee re at 000 (800,000 w DATES 8/25/2003GALLONTANsxowTANKLatifheed7 DRAWING TILE: |12.75"inns (PIPING PLAN (@\THERMO HELIX-PILE DETAIL "C 5KerJscat:ats . . c-3]sca: ()\ BARGE MOUNTED POWER PLANT LAYOUT C-6) SAE:1= 200' ey POWER PLANT FEASIBILITY STUDY BETHEL,ALASKA NUVISTA LIGHT &POWER CO. BARGE MOUNTED COAL PLOTTING DATE:09/02/03 (11:38)AUTOCAD ORAWING NAME:014-SP HARBOR.OWG ©5 iE i ilS ln _{m iO {a \@] 2 : a J E . i - &J i} &J f- : i oe &j -rd i : i - ,Tit]Sine°°ae isis CONCEPTUAL NUVISTA LIGHT &POWER CO, 'yf te eas 5 _ BARGE MOUNTED COAL2"POWER PLANT FEASIBILITY STUDY BETHEL,ALASKA APPENDIX D CONSTRUCTION BUDGET COST ESTIMATES BUDGET COST ESTIMATE Power Plant Feasibility Study MATERIAL UNIT MATL FREIGHTNo.ITEM QTY UNITSL COST.TOTAL $0.20/b TOTAL Mobilization/Demobilization .......sensecocosscsensensacocoesosecoasuscsonsacsovscoosecssesescetsononsesonecosscoccsesssectccsseesoeosees 1 Mob/DeMob 1 SUM 100,000 100,000 100,000 Earthworks .......2c0cossoccscenscccoce sarsceesscscoucosvecuvesoecssecroscocccsousoconsacsreacoosenaeees sess . 2 Sand Fill 195,000 CY 15 2,925,000 2,925,000 3 Gravel Surface Course 8"20,000 CY 80 1,600,000 1,600,000 4 Access Roads 7,000 LF 220 1,540,000 1,540,000 Geotentile.......0..cccrsccscccccvecnsvccscescoscccoscosveceecensesoecsedceeasssiasoesssnsscesconescosnssovesseocaesvasgencessasssssaceevoasscsccoscseesoes [292,350 5 Non-Woven Geotextile 148,000 SF 0.10 9 14,800 29,600 44,400 6 Woven Geoteztile 826,500 SF 0.10 82,650 165,300 247,950 Thermal Py i cee 7 Maint Bldg Rigid Insulation 165,000 BF 1,00 165,000 16,500 181,500 8 Maint Bldg Flat Loop Thermo Syphon w/Hybrid Condensor 24 «EA 7,000 168,000 8,640 176,640 9 Power Plant Rigid Insulation 1,800,000 BF 1.00 1,800,000 180,000 1,980,000 10 Power Plant Flat Loop Thermo Syphon w/Hybrid Condensor 60 EA 12,500 750,000 48,000 798,000 Foundati eee |4,081,520] 11 Maint.Bldg Slab on Grade w/Footings &Grade Beams 280 CY 1,000 280,000 30,240 310,240 12.Pwr Plant Slab on Grade w/Footings &Grade Beams 2,600 CY 1,000 2,600,000 280,800 2,880,800 13 Stoker Slabs in Power Plant 120.CY 1,000 120,000 12,960 132,960 14 Raw Water &Demineralized Water Tank Ringwalls 20 CY 1,000 20,000 2,160 22,160 15 Admin.Bldg.Thermo Helix-Piles (Incl.Installation)24 EA 7,100 170,400 13,440 183,840 16 Cooling Tower Thermo Helix-Piles (Incl.Installation)32 BA 7,100 227,200 17,920 245,120 17 Ash Silo Thermo Helix-Piles (Incl.Installation)4 EA 7,100 28,400 2,240 30,640 18 Housing Thermo Helix-Piles (Incl.Installation)36 EA 7,100 255,600 20,160 275,760 Tanks ...nccsesssneesccescseccssttsssosorsceessvoncsssecomesescccenssnssesconsesnesussosseovess ssuscsousscesaressoncssuasessassesssttessnessssceeeaneseasae19IntermediateFuelTank(12,000 Gallon,Double Wailed)2 EA 26,000 52,000 9,600 61,600 20 Intermediate Tank Appur 2 Ls 10,000 20,000 400 20,400 21 Raw Water Tank (700,000 Gallon,Steel,Erected)t EA 252,000 252,000 34,539 286,539 22 Raw Water Tank Appurtenances 1 #LS 10,000 10,000 200 10,200 23 Demineralized Water Tank (80,000 Gallon,Steel,Erected)1 EA 126,000 126,000 17,270 143,270 24 Demineralized Water Tank Appurtenances 1 =sLS 10,000 10,000 200 10,200 Fuel &Raw Water Pipelines ..:...0.0cesso sooese sooes soosoaeee 25 Coated 4"Sch 40 Pipe 3,700 LF 60 222,000 7,985 229,985 26 4”Plug Valve 2 EA 1,750 3,500 38 3,538 27 4"Check Valve 2 EA 360 720 24 744 28 4"Gate Valve (Water Tanks)2 EA 495 990 4 1,034 29 3”Ball Valve (Fuel Bypass)2 EA 400 800 20 820 30 Fill Limiting Valve 2 EA 965 1,930 12 1,942 Dock.{2,241 350] 31 Fuel Dock 400 LF 5,500 2,200,000 2,200,000 32 Marine Header Containment 1 Ls 7,500 7,500 1,000 8,500 33 Marine Header Assmbly 1 EA 2,500 2,500 350 2,850 Security Fencing .......[181,530] 34 Chain Link Fence 9,635 LF 15S 144,525 28,905 173,430 35 Vehicle Gate 2 EA 4,000 8,000 100 8,100 - Electrical ..........00060 cco sccascensvasssanarncescecccecscareacaseecconscosussounoee {203,500] 36 Electrical Controls 1 SUM 100,000 100,000 1,000 101,000 37 Lighting 1 SUM 100,000 100000 2500 102,500 Sub-Total:17,041,662 Contingency @ 15%2,556,249 Overhead &Profit @ 35%979,896 Bonding and Insurance @ 1.5%293,969 Coal Fired Plant &Buildings Total:20,871,775 BUDGET COST ESTIMATE Power Plant Feasibility Study MATERIAL UNIT MATL FREIGHT No.ITEM QTY UNITS!__COST TOTAL $0.20/b TOTAL Mobilization/Demobilization .......secs sesnesee seotoanes sesconceesecee|__100,000]1 Mob/DeMob 1 SUM 100,000 100,000 100,000 Earthworks .........5..cosoose eoeeus esvoasoeacescoses |5,877,000] 2.Sand Fill 100,000 CY 15 1,500,000 1,500,000 3 Gravel Surface Course 8"8,000 CY 80 640,000 640,000 4 Access Roads 7,100 LF 220 1,562,000 1,562,000 5 Harbor Excavation 65,000 CY 5 325,000 325,000 6 Breakwater Dike Fill 30,000 CY 10 300,000 300,000 7 Breakwater Dike Gravel 3,000 CY 80 «240,000 240,000 8 Armor Rock (3-foot size)3,100 TON 100 310,000 310,000 9 Pier,Dolphins &Moorage 1 Ls 1,000,000 1,000,000 1,000,000 G He.....scccessosencecsscenccesonssccseseaccaoessesess assssessomosescesssteecsescasenseususeascsseceacsooseecoesonsssesenseconscossnascsnsscensonses [164,400] 10 Non-Woven Geotextile 148,000 SF 0.10 14,800 29,600 44,400 11 Woven Geotextile 400,000 SF 0.10 40,000 80,000 120,000 Thermal P ses a _-[zag] 12 Maint Bldg Rigid Insulation 165,000 BF 1.00 165,000 16,500 181,500 13 Maint Bldg Flat Loop Thermo Syphon w/Hybrid Condensor 24 EA 7,000 168,000 8,640 176,640 14 Water Tank Building Rigid Insulation 50,500 BF 1.00 50,500 5,050 55,550 15 Water Tank Bldg Thermo Syphon w/Hybrid Condensor 15 EA 7,000 105,000 5,400 110,400 Foundations ..........ccccssesseseecceeescnsscossseeseeee [1,178,560] 16 Maint.Bldg Slab on Grade w/Footings &Grade Beams 280 CY 1,000 280,000 30,240 310,240 17 Water Tank Building Slab on Grade w/Footings &Grade Beams 100 CY 1,000 100,000 10,800 110,800 18 Raw Water &Demineralized Water Tank Ringwalls 20 CY 1,000 20,000 2,160 22,160 19 Admin.Bldg.Thermo Helix-Piles (Incl.Installation)24 «EA 7,100 170,400 13,440 183,840 20 Cooling Tower Thermo Helix-Piles (Incl.Installation)32 EA 7,100 227,200 --17,920 245,120 21 Ash Silo Thermo Helix-Piles (Incl.Installation)4 EA 7,100 28,400 2,240 30,640 22 Housing Thermo Helix-Piles (Incl.Installation)36 «BA 7,100 255,600 20,160 275,760 23 Intermediate Fuel Tank (12,000 Gallon,Double Walled)2 EA 26,000 52,000 +9,61,600 24 diate Tank Appur 2 Ls 10,000 20,000 400 20,400 25 Raw Water Tank (700,000 Gallon,Steel,Erected)1 EA 252,000 252,000 34,539 286,539 26 Raw Water Tank Appurtenances -1 Ls 10,000 10,000 200 10,200 27 Demineralized Water Tank (80,000 Gallon,Steel,Erected)1 EA 126,000 126,000 17,270 143,270 28 Deminerelized Water Tank Appurtenances 1 Ls 10,000 10,000 200 10,200 Fuel &Raw Water Pipelines ........cccssscvcsssoseee eecscsscesse sce 29 Coated 4”Sch 40 Pipe 4800 LF 60 288,000 -:10,358 298,358 30 4"Plug Valve 2 EA 1,750 3,500 38 3,538 31 4"Check Valve 2 EA 360 720 24 744 32.4"Gate Valve (Water Tanks)2 EA 495 990 44 1,034 33.3"Ball Valve (Fuel Bypass)2 EA 400 800 20 820 34 Fill Limiting Valve 2 EA 965 1,930 12 1,942 Dock ves (2,211,350) 35 Fuel Dock 400 LF 5,500 2,200,000 2,200,000 36 Marine Header Containment 1 Ls 7,500 7,500 1,000 8,500 37 Marine Header Assmbiy 1 EA 2,500 2,500 350 2,850 Security Fencing .......<.csc0csssasssesecvesecosesnseseescussatessancansoosoosscusscososocsecensacesassseseneastatasoncconsonese {148,500] 38 Chain Link Fence 7,800 LF 15 117,000 23,400 140,400 39 Vehicle Gate 2 EA 4,000 8,000 100 8,100 snes .seccees {203,500] 40 Electrical Controls 1 SUM 100,000 100,000 1,000 101,000 41 Lighting 1 SUM 100,000 100000 2500 102,500 Sub-Total:11,246,046 Contingency @ 15%1,686,907 Overhead &Profit @ 5%646,648 Bonding and Insurance @ 1.5%193,994 Barge Mounted Plant Option Total:13,773,594 BUDGET COST ESTIMATE Power Plant Feasibility Study MATERIAL UNIT MATL FREIGHT No.ITEM QTY UNITS COST TOTAL $0.20/1b'TOTAL Mobilization/Demobilization ......,.....00000000 cvese can nerennsacanscccvccuccasneseuseesccenaccasovuesecescessazescs {100,000] 1 Mob/DeMob 1 SUM 100,000 100,000 100,000 Earthworks casevccee srooese cocooceenecenses cooace oeoos caseoree |315,000 2 Tank Farm Sand Fill 13,000 cy 15 195,000 195,000 3 Tank Farm Gravel Surface Course 8"1,500 cy 80 120,000 120,000 Geotertile.......0...0ccocseeccoose cv secsacccassseacanncasaassazesssecene oooccueucoseaccescgsessesoacseueassaaeecessansosoe seve vccnancovoovsseovvecoes {26,250]4 Tank Farm Non-Woven Geotextil 15,500 SF 0.10 1,550 3,100 4,650 5 Tank Farm Woven Geotestile 72,000 SF -0.10 7,200 14,400 21,600 ' Thermal Protection...se seosensenecsnsnsnentstntntgeunenenes atone [aera] 6 Tank Farm Rigid Insulation 310,000 BF 1.00 310,000 31,000 341,000 7 'Tank Farm Flat Loop Thermo Syphon w/Hybrid Condensor 30 EA 9,000 270,000 15,240 285,240 Ss dary Ci sooescsesccvscacesooosnoscessoonsesaceesoceoseonccacooepesovessuoaesecegnssocosscsaccco esse .[210,000]8 Tank Farm Primary Liner 50,000 SF 4.00 200,000 10,000 210,000 Tank Foundations ...........seve soesone crore {83,100] 9 Tank Farm (60'Dia)Foundations 75 cy 1,000 75,000 8,100 83,100 Tanks .......2ccosceesssoesez00e0 ccowe orsvoee covceveuceoeesercusscccaccuuceuccocouseroocaussccsaasosensease [1,384,836]10 Tank Farm (800,000 gal Insulated Tank,Erected)4 EA 260,000 1,040,000 72,000 1,112,000 11 "Tank Coating 41,469 SF 3.84 159,372 664 160,036 12 Tank Catwalks 4 EA 15,000 60,000 12,000 72,000 13.Tank Farm Appurtenances 4 LS 10,000 40,000 800 40,800 Tank Farm Walkways .......vee .{129,638] 14 Walkway Supports 20 EA 2,200 44,000 4,800 48,800 15 Steel Catwalk 250 LF 175 43,750 15,000 58,750 16 Coating 5500 SF 4.00 22,000 88 22,088 Pipelines and Valves..........ceccocoessvacouseeences cusses n0sese0¢sonoccosennvocooesesaseseeesooe [209,345]17 Coated 4"Sch 40 Pipe 350 LF 60 21,000 755 21,755 18 Coated 2"Sch 40 Pipe 365 LF 15 5,475 266 5,741 19 4”Plug Vaive 4 EA 1,750 7,000 296 7,296 20 4"Gate Valve 1 EA 1,255 1,255 62 1,317 21 4"Check Valve 5 EA 360 1,800 275 2,075 22 3"Ball Valve 4 EA 400 1,600 40 1,640 23 2"Bail Valve 6 EA 200 1,200 20 1,220 24 Pipe Supports 320 EA 300 96,000 12,800 -108,800 25 Pig Catcher 1 EA 7,000 7,000 2,500 9,500 26 Cathodic Protection EA 50,000 50,000 50,000 Pumph Mech 1 Systems seeaeeoe |86,996) 27 4"Sch 40 Pipe 50 LF 60 3,000 236 3,286 28 4”Plug Valve 2 EA 1,750 3,500 38 3,538 29 4"Ball Valve 2 EA 550 1,100 30 1,130 30 6"Butterfly Valve 2 EA 700 1,400 60 1,460 31 3"Sch 40 Pipe 50 LF 50 2,500 150 2,650 32 3”Ball Valve 2 EA 400 800 20 820 33 3”Check Valve 2 EA 350 700 12 N12 34 30 hp Pumps (Fuel Transfer)2 EA 20,000 40,000 120 40,120 35 Filter/Separator 2 EA 10,000 20,000 40 20,040 36 Accumulators 2 EA 1,500 3,000 40 3,040 37 Misc Accessories 1 Ls 10,000 10,000 200 10,200 Pumph Building «2.00.00 .0ccccecseesccaseescocevass 3000 eure exseouciven suoevvuvccoesecacesuvscenscanecasosecaengoooncesstanoeouepeecneeunoonaceuenenaccoaceaceosees 90,000) 38 20'x30'Building 600 SF 150 90,000 90,000 Dispensing Station.::cotnencetoseeratasuonasesescoe® 39 Containment Area .1 LS 65,000 65,000 65,000 40 Dispensing Pumps,Piping &Appurtenances 1 LS 40,000 40,000 40,000 Sub-Total:3,366,404 Contingency @ 15%504,961 Overhead &Profit @ 5%193,568 Bonding and Insurance @ 1.5%58,070 3 Mil Gal Fuel Tank Farm Total:4,123,004) BUDGET COST ESTIMATE Power Plant Feasibility Study Bethel,Alaska mo MATERIAL UNIT MATL FREIGHT No.ITEM QTY UNITS COST TOTAL $0.20/Ib TOTAL Earthworks .........ccccccccccccsssseececcssssssssscccssesaesucscsceaseusccescesecceuauscessssssaeaesuseoesecsuuuuesesessssuussaseseesscsssueueesecscessuesessssuenssceceseenanes 2,500,000 1 .Sand Fill 130,000 CY 15 1,950,000 1,950,000 2 Access Road 2,500 LF 220 $50,000 550,000 Geotextile......ccccccccsccecsesecescessescesecscesccsecsecsecsucsecsecsessscsssevesseesssaceaessvssesecessseeaucesseataneaseeses seca nee n scence e ena eeeaeeseeaeeeenseeaeneaseneeeage 234,000 3 Woven Geotextile 780,000 SF 0.10 78,000 156,000 234,000 Thermal Protection ...........cccsccsecsecsecsecsecsccsecseceeeecopseseeseaesscencesenes Lave eee ee seen een ee nee eeeen sense ee eseeseee OE DEA EAEOa DOES ESSE DEG EGO SESE REO OE ESAS SEES EEE 6,302,400 4 Rigid Insulation (4 inches thick) , 3,120,000 BF 1.00 3,120,000 312,000 3,432,000 5 Flat Loop Thermo Syphon w/Hybrid Condensor 390 EA 7,000 2,730,000 140,400 2,870,400 Foundations...........cccescsesscscsscscsecncetensntcnessenenseesssseensnsaesnenecnenenecaeessanenes SPT TT Te TE rere ere er eter er errr rer rere r reer r reer e rere r enter reer earners 6 Building -Thermo Helix-Pile w/Hybrid Condensor (Installed)110 EA 7,100.00 781,000 61,600 842,600 7 Conveyor -Driven 8'Piles (Installed)70 EA 3,750.00 262,500 30,800 293,300 8 Stacker/Reclaimer Concrete Footings 1,900 CY 1,000 1,900,000 205,200 2,105,200 Secondary Containment .............cccsccecsesscneceeeeeeeeeceseenseeeneaeeeenesseseeeenesaseeeaeneeatneseseeseegesetoeseeaessacne ec ec eee ee eens eneeeeaeeeesseeneaseeeseaeaseeed 3,276,000 9 Primary Liner ,780,000 SF 4.00 3,120,000 156,000 3,276,000 Electrical .........ccsssccessssscesssceceessssecsseeeccsssseeessasecccsssesessseeeesseeeeseesaseensuesecesueecseeecessusascessseaesussesesasesessesssecesseseeeesssseusenesenaas 10 Lighting 1 SUM 100,000 100000 5000 105,000 Sub-Total:15,658,500 Contingency @ 15%2,348,775 Overhead &Profit @ 5%900,364 Bonding and Insurance @ 1.5%270,109 }Total:19,177,748} Lined Coal Storage w P-Frost BUDGET COST ESTIMATE Power Plant Feasibility Study Bethel,Alaska MATERIAL UNIT MATL FREIGHT No.ITEM QTY UNITS]COST TOTAL $0.20/Ib TOTAL Earthworks .......cccccccccccsessssesssssseussessessssessncessseseccsseceedssasauunesusussessueusssecsesacveseaseeseenesseeacs vecvsceccsceacsusuesssseacasesucesececessessesaseuanes 1,420,000 1 Sand Fill 58,000 CY 15 870,000 870,000 2 Access Roads 2,500.LF 220 550,000 $50,000 Geotextile..........cccescsecscsersecesceececcecssesecsusesesececeessecsececceseees wee see ee eeeee ee eecee senna scenes eonenseeseeeecesesaeeneneneeenaeaeeeeaesecereceenenecseneasseenees 234,000 3 Woven Geotextile 780,000 SF 0.10 78,000 156,000 234,000 Pre Thaw Permaffost.............cccsceecscsccecscsccecesetaecesececstececessencneeesseesensaseussecacesstenanseceseacespersseensspecseessestecetsseasseesteusersceuseuauseeees 4,570,000 4 Thaw Pipes , 7,000 EA 500.00 3,500,000 70,000 3,570,000 5 Pumps,Piping and Appurtenances 1,000,000 LS 1 1,000,000 1,000,000 Foundations............:.cccecececececceecsesencesseeneseeeceseeeseeenenessesceasesneasesesesessessaeeneeteesebeseceenseeeeesenececeespeceuscsesserssneetaseeeeasenceseeeseenees 3,249,500 6 Building -Driven 12"Steel Piling (Installed)110 EA 7,100.00 781,000 61,600 842,600 7 Conveyor -Driven 8"Steel Piling (Installed)70 EA 3,750.00 262,500 39,200 301,700 8 Stacker/Reclaimer Concrete Footings 1,900 CY 1,000 1,900,000 205,200 2,105,200 Secondary Containment ............cccsessscassescsceessssuensseeeaseeeeeseeeeeescueeeeeeeeeeeeeeeeeeeeeOeebeeseaeeesenaeEeeesaGeesesaeeesseeeseeseeseesanessesanessetenseeea 3,276,000 9 Primary Liner 780,000 SF 4.00 3,120,000 156,000 3,276,000 Electrical .....cccsesssssecsesssesseseecveaveseess svesussuessesaucesesnesaucsussnecsuctissaeesaventenentes ssusuesuesaesoesussuesasenesassnsssssussusavecersueeecsecaeseeavease 105,000 -10 Lighting 1 SUM 100,000 100000 5000 105,000 Sub-Total:12,854,500 Contingency @ 15%1,928,175 Overhead &Profit @ 5%739,134 Bonding and Insurance @ 1.5%221,740 |Total:15,743,549] Lined Coal Storage w Prethaw 3 BUDGET COST ESTIMATE Power Plant Feasibility Study Bethel,Alaska MATERIAL UNIT MATL FREIGHT No.:ITEM QTY UNITS COST TOTAL $0.20/Ib TOTAL Earthworks .....ccsecccsseseceeseseeeseesesssseesseeeaeeeeesssaeeeseneeeeeeeaeeeeesaneeeeeaaeneeeseeeeeseeaaeeeGeeneeeeGanEEESEGGAAEAEEGAAEESAAIEEESSAEAESESSEDESE;GGESSSSEENEE SHEE ES 1 Sand Fill 58,000 CY 15 870,000 870,000 2 Access Roads ;2,500 LF 220 550,000 550,000 Geotextile.......cccccccccccccsccceccscsessseessenssnsnseeceeeesececeseeseunsssesseeesecesesasnaeeneneeeeeeeeecesesseeensasaeeeesceseseseeeaseussssaasaeessseeeteceeceseresseeee 3 Module &Tank Pad Woven Geotextile 780,000 SF -0,10 78,000 156,000 234,000 Foundations..........cccccccccccccescecceccccuscesecacecessssessuensedeceuceusesssessssseacuesesseseseuscenscssssssusseussesseeesuessesueseceeseeceseacescssueaeanauseensasseeseneese 4 Building -Driven 12"Steel Piling (Installed) ) 110 EA 7,100.00 781,000 61,600 842,600 5 Conveyors -Driven 8"Steel Piling (Installed)70 EA 3,750.00 262,500 39,200 301,700 6 Stacker/Reclaimer -Thermo-Helix Piles 320 EA 7,100.00 2,272,000 179,200 2,451,200 7 40 HP Active Refrigeration System 4 EA 146,000.00 584,000 8,000 592,000 Electrical ........sccsscessessceseesscescesseeee secvssssssssesecsecssessessssscssssessucsacsessesssesussesseesecsavsecsessesaesaseseessessetseseesees «sececseeessceaseeseeescsees 105,000] 8 Lighting Unlined Coal Storage 100,000 Bonding and Insurance @ - 100000 5000 105,000 Sub-Total:5,946,500 Contingency @ 15%891,975 Overhead &Profit @ 5%341,924 1.5%102,577 Total:7,282,976] BUDGET COST ESTIMATE Power Plant Feasibility Study Bethel,Alaska MATERIAL UNIT MATL FREIGHT No.ITEM QTY UNITS COST TOTAL $0.20/Ib TOTAL Earthworks ........ccccesseccseceeconeeeeccusnssseseeeaesuesseeceeeeesaeeeeeenesneseneseeseeessDeeseeeeeseeeeseeeeeDOeeEeeaSeeeeeSecuEsseeeeese eeseeeeuecaeesnoeueseeeeaeeeeesoeees 1 Access Roads 1,800 LF 220 396,000 396,000 Cooling Lake System...........-.cscceesereeeeee LeneeeceenseeeenseeeeeeeneeeeeeeeeeeeeDeneseaseeseeeeneseeeeeecEsOseaSEEEDEMOGDEEEREFASDSEUOROSEOBESESeeEEEeOBODEaeEEEOoBees 3,900,720 2 48"O.D.Pipe (Installed)7,150 LF 200 1,430,000 360,360 1,790,360 3 Pipe Supports (60'Centers)130 EA 7,800 1,014,000 83,200 1,097,200 4 48"Gate Valve 3 EA 120,000 360,000 4,500 364,500 5 Building (16 x 20)320 SF 150 48,000 4,800 52,800 6 Driven 8"Steel Piling for Building (Installed)6 EA 3,750.00 22,500 3,360 25,860 7 1000 HP,$5,000 GPM Pump 2 EA 225,000 450,000 20,000 470,000 8 Misc Accessories.1 LS 50,000 50,000 50,000 9 Discharge Structure 1 LS 25,000 25,000 25,000 10 Intake Structure 1 Ls 25,000 25,000 25,000 Security Fencing ...........:.ccscesccsesscssessessssseeeseeceeeeeeesesceaseseeeeeeeeeesseseeeeeeeeeebeenseeeeseeseeseesEeGeseEtenODEOeseeseeseneeseeeeeeeeeeseaseessseecnecennones 11 Chain Link Fence 8,500 LF 15 127,500 25,500 153,000 12 Vehicle Gate 1 EA 4,000 4,000 100 4,100 Electrical ..........sssccsscssccsecosccevesscseseesseeseneeeeseeeseeeeeeseesseneeeseesseeeessuesssDesaeeeeeeeeeneeeaeseeeeeDesaeeeeeODecaDeeDeeeeeeeeseeseeeeeeseeeseessenceeeenneaes 13 Electrical Controls 1 Ls 100,000 100,000 1,000 101,000 14 Lighting 1 Ls 50,000 50000 2500 "$2,500 Delete Cooling TOWER .......cccssscceecccesceacessserseoeseeseeeeeeeenseaeceeeeeeeeeseeeeeeeeeeeeseeOereneesEGOeEOGeEEeOEEEDEAEGGEESEESASODESESSOSADEESEDOSESSEOEEOSEOSEEEEEE 15 Cooling Tower Thermo Helix-Piles -32 EA 7,100 -227,200 -_-17,920 -245,120 Sub-Total:'4,362,200 Contingency @ 15%654,330 Overhead &Profit @ 5%250,827 Bonding and Insurance @ 1.5%75,248 Total:5,342,604] Cooling Lake Option 2.Combustion Turbine Plant at Bethel _Nuvista Light &Power Co. COMBUSTION TURBINE POWER PLANT BETHEL,ALASKA .SITE DEVELOPMENT, EARTHWORKS,FOUNDATIONS AND BULK FUEL CONCEPTUAL DESIGN REPORT .SEPTEMBER 2,2003 Prepared by: Mike Hendee,P.E. CLCME. 139 East 51st Avenue Voice:(907)273-1830 Anchorage,Alaska 99503 Fax:(907)273-1831 Bethel,Alaska Combustion Turbine Power Plant Conceptual Design Report EXECUTIVE SUMMARY This report has been prepared for Nuvista Light &Power,Co.under contract with Bettine,LLC. Its purpose is to provide a conceptual design and budget cost estimate for site development, earthworks,foundations and bulk fuel systems for a new combustion turbine power generationplantlocatedinBethel,Alaska.The proposed power plant will be a 130 megawatt combined combustion and steam turbine system.A 25,000,000 gallon bulk fuel tank farm,a 100,000 gallon intermediate fuel tank and a 700,000 gallon raw water tank also comprise the facility. The report includes basic feasibility level conceptual design drawings for the site development, access roads,fuel storage,piping and a fuel barge off-loading dock.Also included are permitting requirements for the scope of work identified above,flood hazard information,an evaluation of the heating requirements for the fuel and water tanks and budget cost estimates. The proposed site location for the power plant facility was provided by Bettine,LLC and is located approximately 6000 feet south of the City of Bethel Petroleum Port and 1650 feet west of the Kuskokwim River.For this report,we have assumed the site is underlain by ice-rich warm permafrost.No geotechnical nor survey information is available for the proposed site.The power plant layout is preliminary and consists of 14 modules.The layout is based on information provided by Precision Energy Services,Inc.Based on the weights provided for the equipment,the modules shall be supported by thermo helix-piles with passive refrigeration designed to provide foundation support in permafrost. The 25,000,000 gallon bulk fuel tank farm will be located south of the power plant modules and will consist of eight insulated tanks,each measuring 120 feet in diameter and 40 feet high with a nominal storage capacity of 3.2 million gallons.The tanks will be heated with waste heat from the combustion turbines to keep the fuel above the specified minimum temperature of 20°F.A 100,000 gallon insulated intermediate fuel tank and a 700,000 gallon insulated raw water tank will be located near the modules with both heated to the specified temperature of 70°F. The tanks shall be founded on concrete ringwalls that bear on an insulated fill pad with a passive refrigeration thermo syphon system installed to preserve the permafrost.Both the thermo helix- piles and the thermo syphons will have hybrid condenser units that allow for connection to an active refrigeration system should the need arise in the future. A fuel barge off-loading dock with a marine header will be located on the west bank of the Kuskokwim River.The dock design was developed by Peratrovich,Nottingham and Drage,Inc.for the Donlin Creek Mine Late Stage Evaluation Study'.The marine header will connect to an 8-inch diameter pipeline to fill the tanks at the bulk fuel facility.The barge season in Bethel runs from June to September.Presently,the largest fuel barge delivers a maximum of 2,100,000 gallons of fuel per trip,which will require 12 deliveries to fill the tank farm plus an additional 5 deliveries for summer consumption,based on consumption rates provided by Bettine,LLC. a E\LCMF.. Bethel,Alaska Combustion Turbine Power Plant Conceptual Design Report Budget Construction Cost Estimates for the proposed site development,module foundations, 25,000,000 gallon bulk fuel facility,intermediate fuel tank,raw water tank,access roads, pipelines and fuel barge off-loading dock are as follows: ¢Power Plant Modules with Dock &Intermediate Fuel &Water Tanks $8,330,000 *25,000,000 Gallon Bulk Fuel Facility .$25,000,000 *Cooling Lake Option $3,050,000 These estimates are based on competitively bid construction costs with a 15%contingency. Additional costs for design,permitting and construction management of the site development are estimated at $1,100,000.An additional cost of $250,000 will be required for the cooling lake option.Design and construction of the power plant modules and equipment,land purchase,lease and right-of-way costs are not included in these figures. EX-2 E\Lc MF.. Bethel,Alaska Combustion Turbine Power Plant Conceptual Design Report EXECUTIVE SUMMARY I. Il. TABLE OF CONTENTS INTRODUCTION EX-1 APPLICABLE CODES AND REGULATIONS Il.SITE LOCATION 1 COMMUNITY FLOOD DATA 2 V.LOCAL FILL MATERIAL 2 VI.COMBUSTION TURBINE MODULE FOUNDATIONS.2 VII.COOLING LAKE VILL.25,000,000 GALLON BULK FUEL FACILITY 3 IX.INTERMEDIATE FUEL TANK AND RAW WATER TANK 4 X.ACCESS ROADS...4 XI.FUELDOCK 5 XI.PERMITTING 5 XIII.BUDGET COST ESTIMATES 8 XIV.REFERENCES 9 APPENDICES: Appendix A:Site Location Appendix B:Flood Hazard Data Appendix C:Conceptual Design Drawings Appendix D:Heat Requirement Summaries Appendix E:Construction Budget Cost Estimates E\LCMF.. Bethel,Alaska Combustion Turbine Power Plant Conceptual Design Report I.INTRODUCTION This report has been prepared for Nuvista Light &Power,Co.under contract with Bettine,LLC, to provide a conceptual design and budgetary cost estimate for the site development,earthworks, foundations and bulk fuel systems for development of a new power generation facility in the community of Bethel,Alaska.The proposed power plant will be a 130 megawatt combined combustion and steam turbine system.A 25,000,000 gallon bulk fuel tank farm,a 100,000 gallon intermediate fuel tank and a 700,000 gallon raw water tank also comprise the facility. Included with the report are basic feasibility level conceptual design drawings for the site development,access roads,fuel storage,piping and a fuel barge off-loading dock.Also included are permitting requirements for the scope of work identified above,flood hazard information,an evaluation of the heating requirements for the fuel and water tanks and budget cost estimates. No site visit,field work,or geotechnical investigation has been performed for this project.In addition,no geotechnical or survey information is available for the proposed location.A review of overhead aerial photographs was conducted and engineering analyses have been made under the assumption the site is underlain by ice-rich warm permafrost.Site locations,fuel quantities and specified temperatures were provided by Bettine,LLC.Raw water tank size and power generation equipment loads were provided by Precision Energy Services,Inc.(PES).Climate data was obtained from the Alaska Engineering Design Information System (AEDIS). YW.APPLICABLE CODES AND REGULATIONSThedesignofanewpowerplantfacility,roads,dock,foundations and fuel systems are controlled by the following State and Federal codes and regulations: ¢2000 International Fire Code as adopted by 13 AAC 50 ¢2000 International Building Code as adopted by 13 AAC 50 *State of Alaska Fire and Life Safety Regulations (13 AAC 50)_ *ADEC Hazardous Substance Regulations (18 AAC 75) ¢ADEC Air Quality Regulations (18 AAC 52) *Regulatory Commission of Alaska (RCA)Certification (3 AAC 42.05.221) *EPA Oil Pollution Prevention Regulations (40 CFR Part 112) *EPA Storm Water Discharge Regulations (40 CFR Part 122) ¢U.S.Army Corps of Engineers Wetlands and Navigable Waters Regulations (33 CFR Part 328 and 329) It.SITE LOCATION The proposed site location for the power plant facility was provided by Bettine,LLC.The site will be approximately 6000 feet south of the City of Bethel Petroleum Port and approximately 1650 feet west of the nearest point Kuskokwim River.An access road will connect to a private spur road south of Standard Oil Road and to a new petroleum off-loading dock on the west bank of the river,approximately 3500 feet south of the City Petroleum Port.An 8-inch diameter :-[LCMF. Bethel,Alaska Combustion Turbine Power Plant Conceptual Design Report pipeline will connect the proposed dock and marine header to the new bulk fuel tank farm.The site,dock and bulk tank farm locations are shown in Appendix A. IV.COMMUNITY FLOOD DATA The U.S.Army Corps of Engineers -Flood Plain Management Services ALASKAN COMMUNITIES FLOOD HAZARD DATA 2000 publication indicates that the community of Bethel is participating in NFIP status and there is a Flood Insurance Study (FIS)available.The published Flood Insurance Rate Maps (FIRM)show detailed flood information,and can be purchased from the Federal Emergency Management Agency (FEMA).The last flood event was in 1991 and the worst flood event was in 1988. A revised Flood Insurance Study (FIS)was published by FEMA in 1984.The FIS is included in Appendix B.The publication lists the 100-year flood elevation at 17.1 feet.The proposed site elevation is around 50 feet,as interpolated from USGS Bethel (D-8),Alaska Quadrangle,1954 (Limited Revision 1985).The actual site elevation will need to be determined by a design survey.The access roads and dock may be subject to flooding and riverbank erosion. V.LOCAL FILL MATERIAL Local fill material consists of a fine-grained silty dune sand that is mined from pits in Bethel. Material with less than 20%passing the number 200 sieve size and a Corps of Engineers frost classification of F3 can be obtained through selective mining.The present borrow sites are near the airport,with a haul distance to the proposed site of 3 to 5 miles one way. The large quantity of fill material needed for this project may justify developing a borrow source near the site.An intensive geotechnical materials investigation will be required to identify a suitable source and additional permitting will be needed to develop the material site. Gravel is imported to Bethel by barge.Presently,barges routinely deliver 4500 tons (approximately 2500 cubic yards)of gravel per shipment.Most of the gravel delivered is mined in Aniak,Kalskag,or Platinum. VI.COMBUSTION TURBINE MODULE FOUNDATIONS Since the proposed site is assumed to have thaw unstable ice rich soils,the module foundations must maintain the thermal stability of the existing ground to prevent thaw settlement.The combustion turbines have small differential vertical tolerances;therefore,a pile-supported foundation is recommended.To maintain the frozen ground conditions,the modules shall be supported on passive refrigeration thermo helix-piles installed in the winter,using an ad-freeze installation method.A steel frame will be welded to the piling to provide lateral resistance to - wind and seismic forces.Conceptual design drawings of the module foundations are shown in Appendix C.Se _ -CLCMF. Bethel,Alaska Combustion Turbine Power Plant Conceptual Design Report A fill pad of the local sand will be placed under the modules and capped with an 8-inch thick sand and gravel driving surface.The sand fill shall be 4.5 feet thick to limit seasonal thaw within the existing active layer.The fill shall extend around the perimeter of the modules to provide access for vehicles and equipment.The fill pad will be sloped to provide positive drainage away from the modules.The bottom of the modules shall be 4 feet above the top of the fill pad to provide a clear blow-through space.This space separates the fill from.the heat of the modules and allows the fill to refreeze each winter. VII.COOLING LAKE The power plant can be cooled either with the proposed cooling towers,or in a cooling lake located approximately 2000 feet south of the site.The heated water will be transported to the cooling lake in a 24-inch diameter pipe and discharged on the west shore.Cool water will be pumped from the east shore through a 24-inch diameter pipe.Two 350 horsepower pumps will be located at the lake,one in use,and one for backup and reserve when the primary pump is being serviced.The pumps shall be enclosed in a heated pumphouse that is founded on driven piles.The pipelines shall be supported above grade on bents supported by driven steel piling. The cooling lake and pipeline layouts are shown in Appendix A. VIII.25,000,000 GALLON BULK FUEL FACILITY The bulk fuel facility will consist of eight insulated tanks,each measuring 120-foot diameter by 40-foot high with a nominal storage capacity of 3.2 million gallons.The tanks shall be welded steel in accordance with the American Petroleum Institute (API)Standard 650.The steel shell will be covered with 6-inch thick insulated panels that can be removed for inspection.The tanks will be founded on concrete ring walls that bear on a compacted fill pad of the local sand.A layer of rigid board insulation shall be installed in the pad to limit seasonal thaw within the sand fill.Secondary containment of the fuel tanks will consist of a surface installed primary membrane liner placed on top of earthen dikes constructed from the local sand and capped with a layer of sand and gravel.Conceptual design drawings of the bulk fuel facility are shown in Appendix C.. A passive refrigeration,thermo syphon flat loop system shall be installed under the bulk fuel facility to preserve the integrity of the permafrost.The system uses the phase change properties of CO,to remove heat from the sand fill whenever the air temperature is below freezing.The thermo syphons will be fabricated with hybrid condenser units that allow for connection to an active refrigeration system should the need arise in the future. The insulated tanks will be heated with waste heat from the combustion turbines through a glycol circulation loop installed in the bottom of the tanks.Based on the average minimum monthly temperatures recorded since 1949,each tank will require 96,000,000 BTU's per year to maintain _the fuel above the specified minimum temperature of 20°F,which is 10°F above the pour point 'temperature for number 2 diesel.The BTU requirement is based on the heat loss through the tank walls and roof and does not include the residual heat contained in the fuel at the end of the summer.The heat requirement per tank is summarized in Appendix D. .CILCMF. Bethel,Alaska Combustion Turbine Power Plant Conceptual Design Report IX.INTERMEDIATE FUEL TANK AND RAW WATER TANK A transfer pump will deliver the fuel from the bulk fuel facility to a 100,000 gallon insulated intermediate tank near the modules.A standby transfer pump is included in this design so that a pump is always available during servicing.The fuel quantity of the intermediate tank was specified by Bettine,LLC and is based on the estimated daily fuel demand of the combustion turbines of 96,000 gallons (35 million gallons per year).The delivery pipeline will be a 4-inch steel pipe insulated with panels that can be removed for inspection.The pipeline will be supported above grade on piling or helical piers. The fuel will be heated to the specified temperature of 70°F in the intermediate tank prior to entering the turbines.The intermediate tank will contain glycol heat circulation loops similar to the bulk tanks.The tank will require 15,400,000 BTU's to heat 100,000 gallons of fuel per day from 20°F to 70°F.The tank will require an additional 256,000 BTU's to maintain a temperature of 70°F on an average day in December,the coldest month of record.According to the Alaska Engineering Design Information System (AEDIS)data,a total of 64,200,000 BTU's are required to maintain a temperature of 70°F throughout the winter.Assuming the temperature of the fuel entering the intermediate tank is 20°F for 180 days of the year,the total BTU demand for the fuel is around 2,840,000,000 BTU's.A summary of the heat requirements for the intermediate tank is included in Appendix D. A 700,000 gallon insulated raw water tank will be located next to the intermediate fuel tank.The size of the tank was specified by Precision Energy Services,Inc.(PES).The water tank can be heated with circulation loops in the same fashion as the fuel tanks.The water tank will require 188,000,000 BTU's to maintain a temperature of 70°F throughout the winter.The heat requirement for the raw water tank is summarized in Appendix D. The intermediate fuel tank shall be welded steel in accordance with API Standard 650.The raw water tank shall be welded steel in accordance with AWWA Standard D100.Both tanks will have external 6-inch thick insulated panels that can be removed similar to the bulk fuel tanks. The tanks will be founded on concrete ringwalls that bear on a compacted fill pad of the local sand.A passive refrigeration thermo syphon flat loop system with hybrid condenser units shall be installed in the insulated fill pad and the secondary containment for the intermediate fuel tank will consist of a surface installed primary membrane liner placed on top of the fill and attached to timber dikes.Conceptual design drawings of the intermediate and raw water tanks are shown in Appendix C. X.ACCESS ROADS An access road will connect the proposed site to Bethel via a private spur road that intersects Standard Oil Road west of the City Petroleum Dock.The access road will be constructed as an embankment of the local sand and capped with an 8-inch thick sand and gravel surface.The embankment shall be 4.5 feet thick to limit seasonal thaw within the existing active layer.Other roads will be constructed to connect with the proposed cooling lake south of the site and with the -E\LCMF.. Bethel,Alaska Combustion Turbine Power Plant Conceptual Design Report fuel barge off-loading dock to the east.Conceptual drawings of the access roads are included in Appendix C. XI.FUEL DOCK A fuel barge offloading dock and marine header will be located on the west bank of the Kuskokwim River,approximately 3500 feet south of the City of Bethel Petroleum Port.The dock designis similar to the open cell sheet pile design that was includedin the 1999 DonlinCreekMine,Late Stage Evaluation Study Study'by Peratrovich,Nottingham &Drage,Inc.Thecostestimateforthedockisalsobasedonthatreport. The marine header will connect to an 8-inch diameter pipeline for fel transfer to the bulk fuel facility at a rate of 1400 GPM.The pipeline will be supported above grade on piling or helical piers.Conceptual design drawings of the fuel barge offloading dock and pipeline are shown in Appendix C. The barge season in Bethel runs from June until September.At present,the largest barge delivering fuel to Bethel is 344 feet long and can deliver a maximum of 2,100,000 gallons of fuel with a draft of 11.5 feet.The barge is owned by Seacoast Towing and delivers fuel to the Yukon Fuel Company.The barge can pump around 84,000 gallons per hour through an 8-inch line. XII.PERMITTING The power plant,:bulk fuel facility,access road and barge offloading dock will require thefollowing: -1.A spill contingency plan designed to satisfy Federal,Facility Response Plan.(FRP) and State,AK Department of Environmental Conservation -Oil Discharge Prevention and Contingency Plan (ADEC C-Plan)requirements.It must be approved by the EPA,the Coast Guard and ADEC.The EPA requires an approved FRP from each facility with storage capacity of 42,000 gallons or more and which receives oil by marine delivery.The Coast Guard must approve a FRP from each fuel facility that can transfer oil to or from vessels with oil cargo capacity of 250 barrels (10,500 gals.).ADEC requires approval of an ODPCP prior to operations at facilities with storage capacities of 420,000 gallons or more.The C-Plan must satisfy the requirements of Title 46,Chapter 04,Section 030 of the Alaska Statutes (AS 46.04.030)and meet the format requirements listed in the Alaska Administrative Code,Chapter 75,Section 425 (18 AAC 75.425).The ADEC approval process includes public comment and a Coastal Zone Management review.The plan must consist of four parts: i.The RESPONSE ACTION PLAN presents the fundamental elements of spill response.It outlines initial actions and spill reporting procedures,provides emergency phone numbers and presents spill response strategies. DJLCMF. Bethel,Alaska Combustion Turbine Power Plant Conceptual Design Report ii.The PREVENTION PLAN describes the facility design,maintenance and operating procedures that contribute to spill prevention and early detection. Potential spills are identified.. iii.The SUPPLEMENTAL INFORMATION section includes a description of the facility and its response command structure,as well as environmental data and response equipment considerations.' iv.The BEST AVAILABLE TECHNOLOGY section demonstrates that the facility complies with the State of Alaska requirements of 18 AAC 75.425(e)(4)and 18 AAC 75.445(k). 2.A Marine Transfer Operations Manual which demonstrates that the vessel/barge transfer procedures and dock equipment comply with Coast Guard requirements.The Manual must be approved by the Coast Guard.It confirms that the operator's marine transfer procedures and equipment comply with the requirements listed in 33 CFR, Parts 154 and 156.The manual format and content requirements are listed in 33 CFR,Part 154,Subpart B,which lists 23 items that must be addressed.Two copies of the manual are to be submitted to the Coast Guard.Upon approval,one copy of the manual will be returned marked "Examined by the Coast Guard."Copies of the manual are to be maintained at the facility so that they are,"current,available for examination by the USCG Captain of the Port (COTP)and readily available for each facility person in charge while conducting an oil transfer operation”. 3.A Spill Prevention Control and Countermeasure Plan (SPCC)that is certified by a licensed engineer (P.E.)and confirms that the facility complies with the EPA spill prevention and operating requirements.The oil pollution prevention regulations require the preparation of a SPCC for all facilities with aboveground oil storage of more than 1,320 gallons and which,due to their location,could reasonably be expected to discharge oil in harmful quantities into or upon the navigable waters or adjoining shorelines of the United States.The SPCC Plan must be carefully thought out and prepared in accordance with good engineering practices to prevent and mitigate damage to the environment from oil spills.It must address all oil "containers”/tanks with a capacity of 55 gallons or more.The Plan must be certified by a licensed Professional Engineer and must also have the full approval of management at a level with authority to commit the necessary resources.Facility management is to review and evaluate the Plan at least every five years and update it whenever there is a change in facility design,construction,operation,or maintenance that could materially affect the potential for discharge to navigable water.EPA regulations further stipulate,in 40 CFR,Part 112.4,that a written report must be submitted to the Regional Director of the EPA when a facility has either one spill greater than 1,000 gallons,or two spills in excess of 42 gallons in a 12-month period that enter navigable waters.The SPCC Plan need not be submitted to,or approved by,the EPA,but must be maintained at the facility and available for agency inspection., E\LCMF.. Bethel,Alaska Combustion Turbine Power Plant Conceptual Design Report 4.A Fire Marshal review requires submittal of a complete set of construction documents to the State of Alaska,Department of Public Safety,Division of Fire Prevention (Fire Marshal)for plan review and approval.The State Fire Marshall then issues a Plan Review Certificate to verify compliance with adopted Building,Fire and Life Safety codes.Final stamped drawings must be submitted along with the application fee for project review.Anticipate a minimum of one month before comments may be received from the Fire Marshall. A U.S.Army Corps of Engineers Section 10,33 U.S.C.403 permit is required prior to the accomplishment of any work in,over,or under navigable waters of the United States,or which affects the course,location,condition or capacity of such waters. The Kuskokwim River is defined as a navigable waterway.Typical activities requiring Section 10 permits include: i.Construction of piers,wharves,breakwaters,bulkheads,jetties,weirs,dolphins, marinas,ramps,floats,intake structures and cable or pipeline crossings. ii.Work such as dredging or disposal of dredged material. iii.Excavation,filling,or other modifications to navigable waters of the U.S. The National Marine Fisheries Service (NMFS),U.S.Fish and Wildlife Service and Alaska Department of Fish and Game or Department of Natural Resources will review the 403 permit to determine if there is an impact on the anadromous fish population in the Kuskokwim River.They may place restrictions on construction timing or methods.The U.S.Fish and Wildlife Service will also determine if the project impacts any endangered species. A U.S.Army Corps of Engineers wetlands permit is required to place fill material on existing soils before construction begins.Section 404 of the Clean Water Act. requires approval prior to discharging dredged or fill material into the waters of the United States,including wetlands.Wetlands include tundra,permafrost areas, swamps,marshes,bogs and similar areas.Typical activities requiring Section 404 permits include: i.Discharging fill or dredged material in waters of the U.S.,including wetlands. ii.Site development fill for residential,commercial,or recreational developments. iii.Construction of revetments,groins,breakwaters,levees,dams,dikes and weirs. iv.Placement of riprap and road fills. Operators of construction projects disturbing five acres or more must develop a Storm Water Pollution Prevention Plan (SWPPP)and submit the SWPPP as well as a Notice of Intent (NOI)to the EPA and ADEC for review prior to the start of construction activity. ;DILCMF. Bethel,Alaska Combustion Turbine Power Plant Conceptual Design Report 9.The Bethel City Planning Department will review the Fire Marshall,AK DEC and Army Corps of Engineers permits and may add other requirements to the project, such as access and setback from property lines.The City of Bethel also has a General Permit issued by the Corps of Engineers. 10.A review by the Federal Aviation Administration (FAA).Power plants located less than 5 miles from a runway or airport,such as this project,should complete Form 7460-1,"Notice of Proposed Construction or Alteration”and submit all necessary elevation and height of structure information to the FAA (Alaska Region)prior to construction.The FAA reviews the power plant and determines whether the construction or project will present a hazard to air traffic in the vicinity.The FAA has typically provided project determinations within one week of the completed form submittal. 11.A review by the State Historic Preservation Office (SHPO)is required,under Section 106 of the National Historic Preservation Act,for any State or Federally funded project that has the potential of disturbing cultural resources. XIII.BUDGET COST ESTIMATES Budget Construction Cost Estimates have been prepared for the construction of the proposed bulk fuel facility,module foundations,intermediate fuel tank,raw water tank,access roads, pipelines and fuel barge off-loading dock.The estimates were developed based on historical 'pricing for similar work in Bethel with a 6.5%overhead for profit,bonding and insurance.A construction contingency of 15%has been factored into the estimates.A freight rate of $0.20 per pound to Bethel was provided by Bettine,LLC.These estimates do not include costs for the combustion turbine modules or power generation equipment,their transportation to Bethel,nor their mobilization to the site and setup.The estimates do not include the costs of land purchase, leases or right of ways.The Budget Construction Cost Estimates are summarized below.A breakdown of the construction costs is included in Appendix E. ¢Estimated Construction Cost (Power Plant Facility)$8,330,000 ¢Estimated Construction Cost (Bulk Fuel Facility)$25,000,000 ¢Estimated Construction Cost (Cooling Lake Option)$3,050,000 Cost estimates have also been prepared for the design,permitting and construction management for the site development,proposed bulk fuel facility,module foundations,intermediate fuel tank, raw water tank,access roads,pipelines and fuel barge offloading dock.These estimates do not include costs for the facility design,combustion turbine modules,power generation equipment, land acquisition or leases.The estimates were developed based on historical pricing for similar work in Bethel.The design,permitting and project management cost estimates are summarized below. DJLCMF. Bethel,Alaska Combustion Turbine Power Plant Conceptual Design Report Power Plant &Bulk Fuel Facilities *Estimated Design Cost $700,000 *Estimated Permitting Cost $50,000 *Estimated Construction Management Cost $350,000 Cooling Lake Option ¢Estimated Design Cost $100,000 *Estimated Permitting Cost $25,000 ¢Estimated Project Management Cost $100,000 XIV.REFERENCES 1 Peratrovich,Nottingham and Drage,Inc.,Donlin Creek Mine Late Stage Evaluation Study,prepared for Placer Dome Technical Services,Ltd.,March 1,1999. CJLCMF. -APPENDIXA SITE LOCATION wen,PateevysatPROPOSED COOLING LAKE APPROXIMATE LAKE BOUNDARY DISCHARGE REFERENCE AEROMAP BETHEL 3-5 AERIAL PHOTOGRAPHY DATED 6-24-2000 POWER PLANT FEASIBILITY STUDYGBETHEL,ALASKA LLC139E.Stat Ave.«Anchorage,Alaska 90503 -(907)273-1830 |OATE:8/25/03 |DRAWN BY:PR SHEET:1 SCALE:1°=1200°CHECKED BY:MH W.0.No:03-014 APPENDIX B FLOOD HAZARD DATA Flood Hazard Data:Bethel . Page 1 of 1 Bethel |City Office:(907)543-2047 |Revised:March 2000 STATUS -24 class city LAST FLOOD EVENT 1991 POPULATION 5,471 FLOOD CAUSE BUILDINGS ELEVATION RIVER SYSTEM Kuskokwim River -_FLOOD OF RECORD COASTAL AREA none FLOOD CAUSE ELEVATION NFIP STATUS participating WORST FLOOD EVENT 1988 FLOODPLAIN REPORT FLOOD CAUSE FLOOD INSURANCE STUDY yes FLOOD GAUGE no Comments:Published Flood Insurance Rate Maps (FIRM)show detailed flood information.FIRM can be purchased from Federal Emergency Management Agency (FEMA)at :FEMA Maps Flood Map Distribution Center _ 6730 (A-G)Santa Barbara Court Baltimore,MD 21227-5623 Toll free:800 -358-9616 FIRM Panels 0008 B,0009 B,0012 B,0013 B were corrected on 3 June 1994 by FEMA to correct the datum reference from the NGVD to MLLW.The Flood Insurance Rate Map (FIRM),revised February 15, 1985,for the community indicates a 100-year,or Base Flood Elevation (BFE)of 17 ft MLLW. Pagemaster|(907)753-2622 Floodplain Manager|(907)753-2610 http://www.poa.usace.army.mil/en/cw/fld_haz/bethel.htm 6/7/2003. Bo a gryopeeme,SS"ALASKA woe | >BETHEL,DIVISION ve ES . : OE on a REVISED:FEBRUARY15,1984°09 0080 "Federal|Emergency Management Agency"COMMUNITY NUMBER -020104 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 TABLE OF CONTENTS Page INTRODUCTION.wesc ccccrccccnacccncvece wns cccneneceeas en eeseesaseece l 1.1 Purpose Of Study....sseececceeccecceccceces seececnsccecesee lL 1.2 Authority and AcknowledgmentS.....ccccsocccscce.1 1.3 COOPdL Nation.ccccccanvcccecceccacccsencccncsceccesccccsces 1 AREA STUDIED...cc cece ccc r cnn r cc cccecc ce ecee se ereeee nescence nenese 1 2.1 Scope OF Study.cccacccccasnccvescesenescsacevsscccessavsvace 2.2 Community Description...cceccccccnccvecscccccnces 2.3 Principal Flood Problems......ccccccceeccccesen cccccecanes 2.4 Flood Protection MeaSUresS..ccccecccvcccccsccccccscceneseces ENGINEERING METHODS...ccccececscccscccccececceccesecccccecececcee 4 3.1 and 3.2 Hydrologic and Hydraulic AnalysesS......c.cceceseese 4 FLOOD PLAIN MANAGEMENT APPLICATIONS....cccccccccscccccccccccccece 6 4.1 F100 Boundaries...cccccccccscccnvscscccsvscanusscevseneas 6 4.2 FlOOGWAYS .ccc wc w anew ccna wcrc ccc nesccesaesceccsenceccccces 6 INSURANCE APPLICATION.ecccccnccccaccsncencccecessecesesssencceses 7 5.1 Reach DeterminationS...cacccccnccccncnnncascenacosssavsncen 5.2 Flood Hazard FactorS ccscncancaccvccccsccccccecccssssaccsces 5.3 Flood InSurance ZONES.ccwccnccessccvcscccvcsvecccssccescccce 5.4 Flood Insurance Rate Map DeSCription...ccccccccscccevccvece o )JJ)OTHER STUDIES ccc ccc ccc ccc cc cere n ere cet ee eres ea researeeseeveeesee 8 ow LOCATION OF DATA.ccc cence cccn cc cncccsccccsccccsecsccccseccseress B BIBLIOGRAPHY AND REFERENCES .cccvcceccscccccccccessscceeeceneccces 10 TABLE OF CONTENTS (Cont'd) Page FIGURES Figure 1 Vicinity Mapecccecccccccccccececcecedaccectccsccecccepeccace”2 TABLES Table 1 -Summary of EBlevationSccccvcccccccvccecccvcccvesesccsececccces 5 Table 2 -Flood InsSurance Zone Datasccoccccaccccccccccvacceseccccsscees 9 Exhibit 1 -Flood Insurance Rate Map Index tte .- Flood Insurance Rate Map : ii w*FLOOD INSURANCE STUDY 1.0 INTRODUCTION 1.1 1.2 1.3 Purpose of Study This Flood Insurance Study report has been prepared to revise and update a previous Flood Insurance Study/Flood Insurance Rate Map for the City of Bethel,Bethel Division,Alaska,which was published on March 16,1976.This information will be used by Bethel to update existing flood plain regulations as part of the regular program of flood insurance by the Federal Emergency Manage- ment Agency.The information will also be used by local and regional planners to further.promote sOund land use and flood plain develop- ment. In some states or communities,flood plain management criteria or regulations may exist that are more restrictive or comprehensive than those on which these federally supported studies are based. These criteria take precedence over the minimum Federal criteria for purposes of regulating development in the flood plain,as set forth in the Code of Federal Regulations at 44 CFR,60.3. In such cases,however,it shall be understood that the State (or other jurisdictional agency)shall be able to explain these requirements and criteria. Authority and Acknowledgments The source of authority for this Flood Insurance Study is the National Flood Insurance Act of 1968,as amended. The hydrologic and hydraulic analyses for this study were performed by the U.S.Army Corps of Engineers,for the Federal Emergency Management Agency,under Inter-Agency Agreement No.H-8-70.This work,which was completed in October 1980,covered all significant flooding sources affecting Bethel. Coordination Various local officials and appropriate agencies were contacted for information in this study. 2.0 AREA STUDIED 2.1 Scope of Study This Flood Insurance Study covers the incorporated areas of the City of Bethel,Bethel Division,Alaska.The area of study is shown on the vicinity Map (Figure 1). essenTRAWAieee 713 MILES12 APPROXIMATE SCALE VICINITY MAP: 'Leb - FEDERAL EMERGENCY MANAGEMENT AGENCY ee ae ee CITY OF BETHEL,AK: (BETHEL DIVISION}FIGURE 1 -2.2 2.3 Selection of the portion of the community studiedby detailed-methods was based upon availability of detailed mapping. Flooding from Kuskokwim River as it affects Bethel was analyzed by both detailed and approximate study methods.Approximate methods were also used to analyze low-lying areas of the community. Those areas studied by detailed methods were chosen with considera- tion given to all proposed construction and forecasted development through 1985. Approximate analyses were used to study those areas having a low development potential or minimal flood hazards.The scope and methods of study were proposed to and agreed upon by the Federal Emergency Management Agency and the City of Bethel. Community Description Bethel lies on the right bank of Kuskokwim River approximately 390 miles west of Anchorage,500 miles southwest of Fairbanks, and approximately 65 miles up Kuskokwim River from the Bering Sea.It is the hub of southwestern Alaska,as it has an airport suitable for jet aircraft and is a port of call for oceangoing vessels on Kuskokwim River.It is the center of trade,transportation, distribution,communication,administration,and education.Within the vast region served by Bethel,there are 66 villages consisting of approximately 15,000 persons,95 percent of whom are either Eskimos or Athabascan Indians. Principal Flood Problems The flood-prone area of the community lies generally in the eastern and northeastern sections of the study area,while high ground extends to the north and southwest.. Eighty percent of the major residential and commercial areas have been inundated by floods in the past.Areas such as Browns Slough are the most flood prone and contain a heavy density of residential structures.Most commercial establishments within the flood-prone areas are located on somewhat higher ground.Flooding can occur from a combination of factors,including snowmelt and precipitation; however,the primary cause of flooding is ice jams. The Flood Plain Information report on Kuskokwim River in Bethel (Reference 1)lists overbank flooding at an elevation of 12.1 feet.However,there are several homes in a natural depression where the ground elevation is approximately 8.1 feet.Although the initial water elevation of 12.1 feet would theoretically produce 'overbank flooding,river ice usually forms a natural levee that keeps water out of these homes while others are flooded. 3.0 2.4 Flood Protection:Measures The community does not have any flood protection measures nor does it exercise any flood plain management. ENGINEERING METHODS For the flooding sources studied in detail in the community,standard hydrologic and hydraulic study methods were used to determine the floodhazarddatarequiredforthisstudy.Flood events ofa magnitude whichareexpectedtobeequalledorexceededonceontheaverageduringany °10-,50-,100-,or 500-year period (recurrence interval)have been selected as having special significance for flood plain management and for flood insurance premium rates,These events,commonly termed the 10-,50-, 100-,and 500-year floods,have a 10,2,1,and 0.2 percent chance, respectively,of being equalled or exceeded during any year.Although the recurrence interval represents the long term average period between floods of a specific magnitude,rare floods could occur at short intervals or even within the same year.The riskof experiencing a rare floodincreaseswhenperiodsgreaterthan1yearareconsidered.For example, the risk of having a flood which equals or exceeds the 100-year flood (1 percent chance of annual occurrence)in any 50-year period is approxi- mately 40 percent (4 in 10),and,for any 90-year period,the risk in- creases to approximately 60 percent (6 in 10).The analyses reported here reflect flooding potentials based on conditions existingin the comunity at the time of completion of this study.Maps and flood eleva- tions willbe amended periodically to reflect future changes. 3.1 and 3.2 Hydrologic.and Hydraulic Analyses Records of streamflow on Kuskokwim River have been maintained at Crooked Creek since June 1951 by the U.S.Geological Survey. Another gage was installed at McGrath in July 1963.Other miscella- neous measurements of Kuskokwim River are available from the U.S. Geological Survey.These records have been 'supplemented by interviews with local residents,recovered high-water marks from previous floods,tide data from the U.S.Coast and Geodetic Survey,andrecordsoficejamsbytheU.S.Army Corps of Engineers.Using the foregoing records and correlating weather records with flows,it has been possibleto develop a knowledge of flooding at Bethel.The height of the 100-and 500-year floods has been estimated to be 17.1 and 17.6 feet,respectively.The probabilities offloodingfromhighfloodflows'and ice jams were combined. Elevations for floods of the selected recurrence.intervals on Kuskokwim River are shown in Table 1. Table 1."Summary of Elevations ;Elevation (Feet) Flooding Source and Location 10-Year 50-Year 100-Year Kuskokwim.River . ; At Bethel,Alaska 14.8 16.5 17.1 500-Year 17.6 4.0 The 100-year approximate analysis was-based on historic flooding © information and engineering judgment. All elevations are referenced to the Mean Low Water Datum (MLLW). Elevation reference marks used in the study are shown on the maps. FLOOD PLAIN MANAGEMENT APPLICATIONS The National Flood Insurance Program encourages State and local governments to adopt sound flood plain management programs.Therefore,each Flood Insurance Study includes a flood boundary map designed to assist communi- ties in developing sound flood plain management measures. 4.1 4.2 Flood Boundaries In order to provide a national standard without regional discrimina- tion,the 100-year flood has been adopted by the Federal Emergency Management Agency as the base flood for purposes of flood plain management measures.The 500-year flood is employed to indicate additional areas of flood risk in the community.For each stream studied in detail,the boundaries of the 100-and 500-year floods have been delineated using the flood elevations determined at each cross section;between cross sections,the boundaries were interpolated using topographic maps at scales of 1:1200 and 1:2400,with contour intervals of 2 and 5 feet (References 2 and 3). Boundaries of the approximate flooding areas were delineated using the determined elevations and topographic maps at a scale of 1:63,360, with a contour interval of 25 feet (Reference 4). Flood boundaries are indicated on the Flood Insurance Rate Map (Exhibit 1).On this map,the 100-year flood boundary corresponds to the boundary of the areas of special flood hazards (Zones A and A5);and the 500-year flood boundary corresponds to the boundary of the areas of moderate flood hazards (Zone B).In cases where the 100-and 500-year flood boundaries are close together,only the 100-year flood boundary has been shown.Small areas within the flood boundaries may lie above the flood elevations and,therefore, not be subject to flooding;owing to limitations of the map scale,such areas are not shown. Floodways The floodway is the channel of a stream plus any adjacent flood plain areas that must be kept free of encroachment in order that the 100-year flood may be carried without substantial increases in flood heights. Because flooding in this community is tidal,no floodway was computed for Kuskokwim River. 5.0°INSURANCE APPLICATION In order to establish actuarial insurance rates,the Federal EmergencyManagementAgencyhasdevelopedaprocesstotransformthedatafrom the engineering study into flood insurance criteria.This process includes the determination of reaches,Flood Hazard Factors,and flood insurance zone designations for each flooding source studied in detail affecting the City of Bethel.. 5.1 Reach Determinations Reaches are defined as lengths of watercourses or water bodies having relatively the same flood hazard.In tidal areas,reaches are limited to the distance for which the 100-year flood elevation does.not vary more than 1.0 foot.Using these criteria,one reach was required for the flooding source of Bethel.The location of this reach is shown on the Flood Insurance Rate Map (Exhibit 1). 5.2 Flood Hazard Factors (FHFs) The FHF is the Federal Emergency Management Agency device used to correlate flood information with insurance rate tables.Correla- tions between property damage from floods and their FHF are used 'to set actuarial insurance premium rate tables based on FHFs from 005 to 200. The FHF for a reach is the average weighted difference between the 10-and 100-year flood water-surface elevations e:pressed to the nearest one-half foot,and shown as a three-digit code. For example,if the difference between water-surface elevations of the 10-and 100-year floods is 0.7 foot,the FHF is 005;if the difference is 1.4 feet,the FHF is 015;if the difference is 5.0 feet,the FHF is 050.When the difference between the 10-and 100-year water-surface elevations is greater than 10.0 feet,accuracy for the FHF is to the nearest foot. 5.3 Flood Insurance Zones After the determination of reaches and their respective FHFs, 'the entire incorporatedarea of Bethel was divided into zones, each having a specific flood potential or hazard.Each zone was assigned one of the following flood insurance zone designations: zone A:Special Flood Hazard Areas inundated by the 100-year flood,determined by approximate methods;no base flood elevations shown or FHFs determined. zone A5:;,Special Flood Hazard Areas inundated by the 100-year flood,determined by _Getailed methods;base flood elevations 6.0 7.0 shown,and zones subdivided according to FHFs. zone B:Areas between the Special Flood Hazard Areas and the limits of the 500-year flood,including areas of the 500-year flood plain that are protected fromthe100-year flood by dike,levee, or other water control structure;also areas subject to certain types of 100- year shallow flooding where depths are less than 1.0 foot;and areas subject to 100-year flooding from sources with drainage areas less than 1 square mile. zone B is not subdivided. zone C:Areas of minimal flooding. _The flood elevation differences,FHFs,flood insurance zones, and base flood elevations for each flooding source studied in detail in the community are summarized in Table 2. 5.4 Flood Insurance Rate Map Description The Flood Insurance Rate Map for Bethel is,for insurance purposes, the principal result of the Plood Insurance Study.This map contains the official delineation of flood insurance zones and base flood elevation lines.Base flood elevation lines show the locations of the expected whole-foot water-surface elevations of the base (100-year)flood.This map is developed in accordance with the latest flood insurance map preparation guidelines published by the Federal Emergency Management Agency. OTHER STUDIES This study supersedes the previous Flood Insurance Study published for the City of Bethel (Reference 5).It also supersedes the Flood Plain Information report for Kuskokwim River Prepared by the U.S.Army CorpsofEngineersin1968(Reference 1). This study is authoritative for the purposes of the National Flood Insur- ance Program;data presented herein either supersede or are compatible with all previous determinations. LOCATION OF DATA 'Information concerning the pertinent data used in preparation of this study can be obtained by contacting the Natural and Technological Hazards Division,Federal Emergency Management Agency,Federal Regional Center, 130 228th Street,SW,Bothell,Washington 98011. cod a ea a v}ELEVATION DIFFERENCE ASE FLOODBETWEEN1%(100-YEAR)FLOOD AND|FLOOD B FLOODING SOURCE PANEL?(HAZARD ZONE ELEVATION 10%2%0.2%FACTOR FEET (MLLW)(LO-YEAR)|(50-YEAR)|(500-YEAR) Kuskokwim River : Reach 1 0008,0009/-2.3 -0.6 0.5 025 A5 17 0012,0013 11004 Insurance Rate Map Panel 2 weighted Average 3ounded to Nearest Foot ¢41avlFEDERAL EMERGENCY MANAGEMENT AGENCY . CITY OF BETHEL,AK(BETHEL DIVISION) FLOOD INSURANCE ZONE DATA KUSKOKWIM RIVER 8.0 BIBLIOGRAPHY AND REFERENCES 1. 2. U.S.Department of the Army,Corps of Engineers,Flood Plain Infor- mation,Bethel,Alaska,Kuskokwim River,December 1968 Air Photo Tech,Inc.,Topographic Maps,Scale 1:1200,Contour Interval 2 feet:Bethel,Alaska (1979) q Air Photo Tech,Inc.,Topographic Maps,Scale 1:2400,Contour Interval 5 feet:Bethel,Alaska (1979) U.S.Department of the Interior,Geological Survey,Topographic Maps,Scale 1:63,360,Contour Interval 25 feet,Bethel,AK C-8 (1954),Bethel,AK D-7 (1954),Bethel,AK D-8 (1954) U.S.Department of Housing and Urban Development,Federal Insurance Administration,Flood Insurance Study,City of Bethel,Alaska, 1976 10 APPENDIX C CONCEPTUAL DESIGN DRAWINGS wontams(3)INOAVTLOSrOedP|(BED)f TY a L-9ow >- i =Cae |Cie wc)ByLae]oHDavee I t Gms i ir I )cf 'oO [HH worry es=rehq>- 7 PAA Cael BERHelfl CONCEPTUAL NUVISTA LIGHT &POWER CO. gl 1883 - POWER PLANT FEASSBILITY STUDY BETHEL,ALASKA PLOTTING DATE:08/26/03 (10:27) AUTOCAD DRAWING NAME:O14-TANK FARM.OWG 088.)cINISfeNVidWHV4XNVITandaWindFelUVGINGIINOLaVGHTOMATO)Sided0,0JN3did9,9(9007NouYIIED|i=|See]sf%5 md ral CONCEPTUAL NUVISTA LIGHT &POWER CO.Ne eee -LCME.No $*badd Seeneeeee POWER PLANT FEASIBILITY STUDYrsBETHEL,ALASKA PLOTYWG DATE:08/28/03 (10:27) AUTOCAD ORAWING NAME:O14-TANK FARM.OWG *POWER PLANT FEASIBILITY STUDY BETHEL,ALASKA a 8 NUVISTA LIGHT &POWER CO. unten CONCRETE Taree z 2Seid ii 28 ment oe) = ' 2.3>i CONDENSER 1 é to" a 10° I2s to" ' 10 . TPS mi A 34 er wee ;u + I iti I + i i .| ft - + z ra ra L = = = == 4 SS) * 6°RIGID 6°co 4°RCO RIGO ©CD ry Tsocome/F8ET SaltonS err] bation/ fainISn-/\"_ ™e Mgr SerLeone| Mouton PERuenost CEOTEXTAE PERMAFROST F uc100teeaan,-aentemage Anan GO -GPO AD C\BULK FUEL TANK FARM SECTION C-3) SCNE: 1°=20° Ee SanoCORE CONCEPTUAL EXISTINGGROUND: KO SONARILSAIREAOCE®SKBLK ASE ax PIRATE ' PORK AXE: WIE By< (2\ROAD SECTION eranon.Pa C-3) SCAE: 1°=8" CHECKED BY:MH DATE: 8/25/03JoRawing TaNt:ISECTIONS.C-3 NUVISTA LIGHT &POWER CO. POWER PLANT FEASIBILITY STUDY BETHEL,ALASKA SE E)LCMF. AUTOCAD DRAWING NAME:014-TANK FARM.OWG PLOTTING OATE:08/26/03 (10:28) (2\ THERMO NORTH CONCEPTUAL SYPHON LAYOUT C-4} SCAE: 1°=80" tev DRAWW BY:PRCHECKED GY:MH CATE: 6/25/03 408 NUMBER: 03-014 DRawing TITLE: THERMO SYPHON LayoutSMELT: oFC-4 BETHEL,ALASKA oO13 MYBRIO THERWO [veg2 fo2, (acy Suata =|. TYPICAL \ Fence FeE 1 nN ela HA N \ :0 TaN wa] |jt 3|@ U Li Kuu ar . is x== = 5 S)z l2< (recat) CALON -| x3 1° Fed 2= (rca) rane >2 sate po] (rece) z vw '120 ES tet Aare,:Aomnmnge,Amie GED -GS Nene (2) INTERMEDIATE TANK PLAN c-5/ SCALE: 1"=40" AUTOCAD DRAWING NAME:014 --INTERMEDIATE TANK.OWG PLOTTING DATE:08/26/03 (10:21) ]<b=]= . a HERD THERMO WwW SYPHON CONDENSER 100.000 GALLON W (30'8 INTERMEDIATE s FUEL TANK FAi mace = -\ preuany : te {/uner . . 3 - 5 5 : a : 2x 4] |fF { 7 \ i fi \\ Deane or:Pm ya ri ri \ AN \ * [ : : - - 5 - : - a <> cecKee wr:wn SOLER NLD LLL SFOS EIS OE IRA YE RAB OOPS ODS RRGLR FSO OUARL, SEAL NI POLENSREXEL LEN ANXx " MLR CAO ROERAE. SACO pave: 8/25/03 NURS SAS meNNan 208 NUMBER: 03-014 CONCRETE mace (WOVEN PRIMARY oor ° CONCRETE . Foorer INSULATION corexrer NER RAATOR fsuLAnOW Tan RivGma SULAnON DRAWING TLE:INTERMECHATE TANK (2) INTERMEDIATE TANK SECTION C-4] SCRE: 810° . ; C-5 PLOTTING DATE:08/26/03 (10:29) AUIOCAG DRAWANG NAME:014-TANK FARM.OWG VEMOTDwonZeANYLNOTIDNOTZoSins3WOs(9-9)NV1dDNidid\/NWINOTWONOTELMNNOTIVDNOMorTIT Tieo!tay fell CONCEPTUAL NUVISTA LIGHT &POWER CO.it ee ith =CILCMEo£7”SE FrehegrehI POWER PLANT FEASIBILITY STUDY : ; ;BETHEL,ALASKA AUTOCADDRAWINGNAME:014-MODULESECTIONDWCPLOTTINGDATE:04/28/03(10:23)COumausTIONMSCELECTRICALGENERATOR wrrassMOOULEPULLSPACEFURIE/CENERATOR OamPe)STEAs roms Fain FUR ECENERATORrdAYMOOULESAND&GRAVEL\1 _Littss wea (HP) cayToe Gee oneal Gon toon an bevel ee Gon i heal oo i an PemaerROosT POWERPLANTFEASIBILITYSTUDYBETHEL,ALASKA+NUVISTALIGHT,&POWERCO.-(2\MODULE LAYOUT SECTIONXerJseat:Feio ALCME..ee SANG H GRAM _|a ane 3 tiPERMAFROSTOo zsl© _pgqa&q DRAW BY:ZIG y)CwECKED wv:WH oATE:8/25/03q|;KEV SRO 43 J08 'auan,Os-014 LPs +Jsccnows a vetans 4 aos .100"|tae"J 100" (2\THERMO HELIX PILE DETAIL @ FUEL BARGE OFF-LOADING DOCK-PLAN "C7C-7)SCALE:1"=30°C-7 7 SAE:1st APPENDIX DHEATREQUIREMENTSUMMARIES Project Description:Bethel Power Plant Project Number:03-014Analysisby:MKH Heat Requirement: Input:Bulk Fuel Tanks,120'Dia x 40°High Diameter=120 ft Height=40 ft V (Volume)=3200000 gal D (Density)=TAT Ib/gal Specific Heat=0.43 BTU/b*F T (Maintained)=20 F R=16.84 Surface Area per Tank,A==26389 _ -s sq ft Time=24 Hours Calcs:Heat Loss per Tank =Q=(Delta T)*A/R Hr*Ft42*F/BTU (6"insulation,15 mph wind) Data from AK Engineering Design Information System (1949 to 2001) Heat Loss (Q)Heat Loss (Q)Heat Loss (Q) 'Month AvgMinT DeltaT No/Days (BTU/Hr)(BTU/Day)BTU/Month Jan 0.8 19.2 31 30088 722104 22385213 Feb 0 20 28 31341 752191 21061357 Mar §.2°14.8 31 23193'556622 17255269 Apr 16.9 3.1 30 4858 116590 3497690 May 32.3 0 31 0 0 0 Jun 42.8 0 30 0 0 0 Jul 47.9 0 31 0 0 0 Aug 46.5 0 31 0 0 0 Sep 38.4 0 30 0 0 0 Oct 24 0 31 0 0 0 Nov 11.6 8.4 30 13163 315920 9477610 Dec 0.6 19.4 31 30401 729626 22618393 [Total 96295531 |BTU/year per tank Project Description :Bethel Power Plant Project Number:03-014 Analysis by :.MKH Heat Requirement: Input:Intermediate Fuel Tank,30°Dia x 20"High Diameter=30 ft Height=20 ft V (Volume)=100000 gal D (Density)=-s_7.17 Ib/gal Specific Heat=0.43 BTU/Ib*F Ti (Initial)=20 F T (Maintained)=70 F _Re 16.84 Hr*Ft*2*F/BTU (6"insulation,15 mph wind)Surface Area per Tank,A=2592 sq ft Time=24 Hours Calcs:Heat to raise temp from 20F to 70F,Q=(V*D)*(Delta T)*Specific Heat Q=15423793 BTU per 100,000 gallons Caics:Heat Loss per Tank=Q=(Delta T)*A/RDatafromAKEngineeringDesignInformationSystem(1949 to 2001) Heat Loss (Q)HeatLoss (Q)Heat Loss (Q) Month AvgMinT DeltaT No/Days (BTU/Hr)(BTU/Day)BTU/Month _Jan |0.8 69.2 31 10650 255611 7923932 Feb 0 70 28 10774 258566 7239841 Mar 5.2 64.8 31 9973 ;239358 7420099 Apr 16.9 53.1 30 8173 196141 5884218 May 32.3 37.7 31 5802 "139256 4316940 Jun 42.8 27.2 30 4186 100471 3014138 Jul 47.9 22.1 31 3401 81633 2530620 Aug 46.5 23.5 31 3617 86804 -2690931 Sep 38.4 31.6 30 4863 116724 3501719 Oct 24 46 31 7080 169915 5267354 Nov 11.6 58.4 30 8988 215718 6471532 Dec 0.6 69.4 31 10681 256349 7946834 [Total 64208158 |BTU/year Project Description :Bethel Power Plant Project Number:03-014 Analysis by:MKH Heat Requirement: Input:Raw Water Tank,55°Dia x 40°High Diameter=55 ft Height=40 ft V(Volume)=700000 -gal D (Density)=8.34 Ib/gal Specific Heat=1.0 BTU/Ib*F T (Maintained)=70 F R=16.84 Hr*Ft42*F/BTU (6”"insulation,15 mph wind) Surface Area per Tank,A=9287 sq ft Time=24 Hours Calcs:Heat Loss per Tank =Q=(Delta T)*A/R Data from AK Engineering Design Information System (1949 to 2001) Heat Loss (Q)HeatLoss (Q)Heat Loss (Q) Month _AvgMinT__DeltaT _No/Days (BTU/Hr)(BTU/Day)BTU/Month Jan 0.8 69.2 31 38164 915938 28394091 Feb 0 70 28 38605 926527 25942765 Mar 5.2 64.8 31 35737 857700 =26588687Apr16.9 53.1 30 29285 702837 21085114 May 32.3 -37.7 31 20792 499001 15469035 Jun 42.8 27.2 30 0 0 0 Jul 47.9 22.1 31 0 0 0 Aug 46.5 23.5 31 0 0 0 Sep 38.4 31.6 30 0 0 0 Oct 24 46 31 25369 608861 18874685 Nov 11.6 58.4 30 32208 772988 23189655 Dec 0.6 69.4 31 38274 918586 28476155 [Total 188020187 |BTU/year APPENDIX E CONSTRUCTION BUDGET COST ESTIMATES BUDGET COST ESTIMATE Power Plant Feasibility Study MATERIAL UNIT MATL FREIGHT No.ITEM QTY UNITS|'COST TOTAL $0.20/D'TOTAL Mobilization/Demobilization ses Censescercenesececcascsnnecsacseosenee 1 Mob/DeMob 1 SUM 100,000 100,000 100,000 Earthworks .........2<1scecccooecssoceeee :s200cecceaccccessosansaccosccone seo ssaccvca0sceovscevescsecccocs 900s coecaaccaccoscnseence sec ouceces 3,066,000 2 Module &Tank Pad Sand Fill 30,000 CY 15 450,000 450,000 3°Module &Tank Pad Gravel Surface Course 8”5,200 CY 80 416,000 416,000 4 Access Roads 10,000 LF 220 2,200,000 2,200,000 Geotentil .sesvcctssesscusosennsuvensserecenccuacentcossagceavasesonnuavescosansanansasereseneesee 5 Module &Tank Pad Non-Woven Gcotextile 4,000 SF 0.10 400 800 1,200 6 Module &Tank Pad Woven Geoteatile 190,000 SF 0.10 .19,000 38,000 57,000 sessuosssesssosssacnasosoeees . 95,000 BF 104,500 8 Int.&Water Tanks Flat Loop Thermo Syphon w/Hybrid Condensor 20 EA 7,000 140,000 7,200 147,200 Module Foundation............2s.0sescccvsceccesceoepsacseusouceesovssvssoececosenasesesesooacsseasoes sevececooecveeccovoceoocowescoveccencocscococseeocosessancessecoosecaaeaeee 1,374,500) 9 Thermo Helix-Pile w/Hybrid Condensor 150 EA 5,500.00 825,000 84,000 909,000 10 Pile Installation (35 Foot Embedment)150 EA 1,600.00 240,000 240,000 11 W18x 55 Beams 5,500 LF 30 165,000 60,500 225,500 S dary Containment .......0020ssccsscsssessvsonscvosenvesevscosovecesaess Savec0cccencaacccvccvcccdcoveaceecs0s ee eave soaanssavaconnsoceoavcoooaccaseasoeseoes ees oe 63,201 12 Intermediate Tank Primary Liner 5,700 SF 4.00 22,800 1,140 23,940 13 Intermediate Tank Dike Posts 40 EA 70 2,800 1,220 4,020 14 Intermediate Tank Dike 6x6 Wall Timbers 2,200 LF i 24,200 2,942 27,142 15 Sheet Metal Covers 300 LF 22 6,600 1,500 8,100 Tank Foundations .......ccccocccssoeesvesccacescseaconecacocesocosscessoovecesoos vese 16 Intermediate Tank (30'Dia)Foundation 20 CY 1,000 20,453 2,209 22,662 17 Water Tank (55'Dia)Foundation .35 CY 1,000 34,998 3,780 38,777 Tanks . es [520,400] 18 Intermediate Tank (100,000 gal Insulated Tank,Erected)1 EA 100,000 100,000 100,000 19 I diate Tank Appur 1 LS 10,000 .10,000 200 10,200 20 Raw Water Tank (700,000 gal Insulated Tank,Erected)1 EA 400,000 400,000 400,000 21 Raw Water Tank Appurtenances 1 LS 10,000 10,000 200 10,200 Fuel &Raw Water Pipelines ......-....ee cevecne soe |128,000 22 4"x 10”Insulated Sch 40 Pipe (Issuc)350 LF 65 22,750 755 23,505 23 Coated 2"Sch 40 Pipe (Water Draw).30 «LF 15 750 37 787 24 4"Plug Valve 5 EA 1,750 8,750 95 8,845 25 4"Check Valve 2 EA 360 720 24 744 26 4"Gate Valve (Water Tank)1 EA 495 495 22 517 27 3”Bail Valve 2 EA 400 800 20 :820 28 2"Bail Valve 6 EA 200 1,200 20 1,220 29 Fill Limiting Valve 2 EA 965 1,930 12 1,942 30 Pipe Supports 20 EA 300 6,000 800 6,800 31 2"X 8"Insulated HDPE Pipe (Glycol)1,400 LF 55 77,000 1,120 78,120 32 2"x 8"Half Shells (HDPE Joints)30 EA 40 1,200 900 2,100 33 2"x 8"Elbows 10 EA 250 2,500 100 2,600 DOCK......:essenesovscccooccses soecee :{1,045,350] 34 Fuel Dock 188 LF 5,500 1,034,000 1,034,000 35 Marine Header Containment .1 LS 7,500 7,500 1,000 8,500 36 Marine Header Assmbly ,1 EA 2,500 2,500 350 2,850 Security Fencing ...........020s000800 :[29,700) 37 Chain Link Fence 1,200 LF 15 18,000 3,600 21,600 38 Vehicle Gate 2 EA 4,000 8,000 100 8,100 Electrical ........0.cscecsssesscoseoeesseess see soseccecorssesessccensesss saoesvaveovsoosscoeeed 39 Electrical Controls 1 SUM 50,000 50,000 1,000 51,000 40 Lighting 1 SUM 50,000 $0000 2500 $2,500 Sub-Total:6,801,991 Contingency @ 15%1,020,299 Overhead &Profit @ 5%391,115 Bonding and Insurance @ 1.5%117,334 Combustion Turbine Power Plant 8,330,739 "erBUDGET COST ESTIMATE Power Plant Feasibility Study Bethel,Alaska MATERIAL UNIT MATL FREIGHT No.ITEM QTY UNITS COST TOTAL $0.20/1b|TOTAL Mobilization/Demobilizaticn .......{100,000]1 Mob/DeMob 1 SUM 100,000 100,000 100,000 Earthworks ......1,680,000 2 Tank Farm Sand Fill 80,000 CY 15 1,200,000 1,200,000 3 Tank Farm Gravel Surface Course 8"6,000 cY 80 480,000 480,000 G il :142,500) 4 Tank Farm Non-Woven Geotextile 125,000 SF 0.10 12,500 25,000 37,500 S$Tank Farm Woven Geotextile 350,000 SF 0.10 35,000 70,000 105,000 Thermal Protection .....0.cccscccsccercececsesnaseeeres oes :|2,710,000]6 Tank Farm Rigid Insulation 1,460,000 BF 1.00 -1,460,000 146,000 1,606,000 7 Tank Farm Flat Loop Thermo Syphon w/Hybrid Condensor 150 EA 7,000 1,050,000 $4,000 1,104,000 Secondary Containment .:.....0.c000+.1,113,000 8 Tank Farm Primary Liner 265,000 SF 4.00 1,060,000 $3,000 1,113,000 Tank Foundati °620,480) 9 Tank Farm (120°Dia)Foundations 560 cy 1,000 560,000 60,480 620,480 Tanks [12,081,600] 10 Tank Farm (3.2 mil gal Insulated Tank,Erected)8 EA 1,500,000 12,000,000 12,000,000 11 Tank Farm Appurtenances 8 LS 10,000 80,000 1,600 81,600 Tank Farm Walkways J 353,790) 12 Walkway Supports 50 CEA 2,200 110,000 =12,000 122,000 13 Steel Catwalk 730 LF 175 127,750 43,800 171,550 14 Coating 15000 SF 4.00 60,000 240 60,240 Pipelines and Valves.[933,310]15 Coated 8"Sch 40 Pipe (Fill)4,200 LF 70 294,000 =23,999 317,999 16 4"x 10"Insulated Sch 40 Pipe (Issuc)2,100 LF 75 157,500 4,532 162,032 17 Coated 2"Sch 40 Pipe (Water Draw)1,000 LF 15 15,000 730 15,730 18 8"Plug Valve 9 EA 3,280 29,520 666 30,186 19 8"Gate Valve 1 EA 1,285 1,255 62 1,317 20 8"Check Valve 1 EA 1,190 1,190 55 1,245 21 #4”Plug Valve 16 EA 1,750 28,000 304 28,304 22 4"Check Valve 8 EA 360 2,880 96 2,976 23 3"Ball Valve 8 EA 400 3,200 80 3,280 24 2"Ball Valve 24 «=A 200 4,800 82 4,882 25 Pipe Supports 375 EA 300 112,500 15,000 127,500 26 Pig Catcher 1 EA 7,000 7,000 2,500 9,500 27 Cathodic Protection 1 EA 50,000 $0,000 50,000 28 2"X 8"Insulated HDPE Pipe (Glycol)3,000 LF 55 165,000 2,400 167,400 29 2"x 8"Half Shells (HDPE Joints)60 EA 40 2,400 1,800 4,200 30 2"x 8*Elbows (HDPE)26 «BA 250 6,500 260 6,760 Pumph Mechanical Sy 36,996) 31 4"Sch 40 Pipe 50 LF 60 3,000 286 3,286 32 4"Plug Valve 2 =EA 1,750 3,500 38 3,538 33 4°Ball Vatve 2 EA 550 1,100 30 1,130 34 6"Butterfly Valve 2 &EA 700 1,400 60 1,460 35 3"Sch 40 Pipe 50 LF so 2,500 150 2,650 36 3"Ball Valve 2 #&§EA 400 800 20 820 37 3"Check Valve 2 =&EA 350 700 12 NZ 38 30 hp Pumps (Fuel Transfer)2.EA 20,000 40,000 120 40,120 39 Filter/Separator 2 EA 10,000 20,000 40 20,040 40 Accumulators 2 EA 1,500 3,000 40 3,040 41 Misc Accessories 1 Ls 10,000 10,000 200 10,200 Pumph Building ..........0.sscssscscesssensescesoe 90,000 42 20'x30"Building 600 SF 150 90,000 90,000 Security Fencing [8,106] 43 Chain Link Fence 3,000 LF 15 45,000 9,000 54,000 44 Vehicle Gate 1 EA 4,000 4,000 100 4,100 EI]ical . 45 Electrical Controls 1 SUM 100,000 100,000 1,000 101,000 46 Lighting 1 SUM 100,000 100000 2500 102,500 Sub-Total:20,173,276 Contingency @ 15%3,025,991 Overhead &Profit @ 5%1,159,963 Bonding and Insurance @ 15%347,989 25 mil Gal Bulk Fuel Tank Farm Total:24,707,220) 'BUDGET COST ESTIMATE Power Plant Feasibility Study Bethel,Alaska MATERIAL UNIT MATL FREIGHT No.ITEM QTY UNITS COST TOTAL $0.20/Ib TOTAL Earthworks ..........ccceccsoscncscscecscscssssssscecscecstsces ce teneecececececsuscececsnsssetecstecesscacaescnsesenos POEPESEESTOSSSECIESTESETISTSTOTESTTISICLEESESELESESEOTESTILE 396,000 4 Access Roads 1,800 LF 220 396,000 396,000 Cooling Lake System..........c:sccccssssccsnseeccssecsasseseesseeeeeesseeaseeeeeeenaeseesssseeneeeeeeeaseseeeeeeestesaeeesaenessaeeeeeeenessuneceenaceeneneseneneceenesenees 2,015,494 34 24"O.D.Pipe (Installed).7,400 LF 38 282,088 139,120 421,208 34 Pipe Supports (60'Centers)135 EA 7,800 1,053,000 86,400 1,139,400 35 24"Gate Valve 3.EA 7,150 21,450 1,776 23,226 36 Building (16 x 20)320 SF 150 48,000 4,800 52,800 36 Driven 8"Steel Piling for Building (Installed)6 EA 3,750.00 22,500 3,360 25,860 37 350 HP,15,000 GPM Pump 2 EA 125,000 250,000 3,000 253,000 38 Misc Accessories 1 #XLS 50,000 $0,000 50,000 39 Discharge Structure 1 EA 25,000 25,000 25,000 40 Intake Structure 1 EA 25,000 25,000 25,000 Security Fencing .........cccccsccssceeceeeeeseeseneee eee eeeees eee eee esses ease esate eee e ees eee eee ese ee OEE ESE EASE SOE EEE SEE EEG EAS EAS EAE ESE ESE OEM OE SEE OEE SEE EEE EEODOE EEE ERSE ESE E ES 167,900 44 Chain Link Fence 9,100 LF 15 136,500 27,300 163,800 45 Vehicle Gate 1 EA 4,000 4,000 100 4,100 Electrical ...........ccsccececececscorsececseeceeseeesecencassscecearcecessenceescesseeneseseesserscneseus vesteseeacesevsscsceacesscuseeacaesseesscaccuseeacesseseesecaeseceesee 46 Electrical Controls 1 LS 100,000 100,000 1,000 101,000 47 Lighting 1 LS 50,000 50000 2500 $2,500 Delete Cooling Tower ........ccscsscssovresssnscsccnseeensnseeeeeenseneneeeeenesseeseaeeceesssceseeceseseeeeeseenes euesevesesessusasasacassescssssavssucussssencesusestenseases 16 Cooling Tower Thermo Helix-Piles .+32 EA 7,100 -227,200 -_-17,920 -245,120 Sub-Total:2,487,774 Contingency @ 15%373,166 Overhead &Profit @ 5%143,047 Bonding and Insurance @ 1.5%42,914 Total:3,046,901] Cooling Lake Option