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Port Alsworth design report 2014
.P.O.Box 111405Wor"Anchorage,Alaska 99511-1405>E ngineering,Inc.Ph.(907)349-0100,Fax (907)349-8001 May 2,2014 ERE IWE Mr.Karl Reiche, Project Manager MAY 0.2 2014 Rural Energy Group AIDEA Alaska Energy Authority AEA813WestNorthernLightsBlvd. Anchorage,AK 99503 Subject:Port Alsworth CDR -Deliverable Dear Mr.Reiche: Please find enclosed 2 bound copies of the Port Alsworth CDR for your files. Please review and call me at (907)349-0100 with any questions or if you need additional copies made. Sincerely, Gray Stassel Engineering,Inc.Le YRohnDickerson Project Engineer EGEIVE MAY @ 2 2014 AIDEA CONCEPT DESIGN REPORT AND AEA CONSTRUCTION COST ESTIMATE FOR ENERGY INFRASTRUCTURE PROJECTS IN THE COMMUNITY OF: PORT ALSWORTH PREPARED FOR: PORT ALSWORTH IMPROVEMENT CORPORATION TANALIAN ELECTRIC COOPERATIVE ALASKA ENERGY AUTHORITY PREPARED BY: GO ey.SN tassel\Engineering,Inc. Mailing Address -P.O.Box 111405Anchorage,AK 99511-1405 (907)349-0100349-8001 FAX APRIL 22,2014 D Karl Reiche From: Sent: To: Cc: Subject: Mark/Beth: After reviewing AEA's budget &di projects: e The Conceptual Karl Reiche Monday,May 05,2014 4:13 PM 'lakeclarkmark@gmail.com';'beth4dsnow@gmail.com' Kris Noonan Tanalian Electric Cooperative,next steps #12282,40%4 hudseted ussion with Kris Noonan/AEA,some thoughts on TEC's tank farm and power plant esign Report included cost estimates:power plant $1,894,000;tank farm $652,000 e AEAconstructign funding available:power plant $O ($200K already granted to PAIC for PH1 &Ph2 design);tank farm2,282,403 Qyote:tank farm vs.power plant funding sources are not interchangeable).e®So,A as no tunding for power plant construction and excess funding for tank farm construction. e PAIC has adequate funding under the existing AEA "pass through grant”,to complete Phase 2 Final Design for both the power plant and tank farm,working directly with GSE. e After the power plant &tank farm designs have been completed,AEA could construct the tank farm using a "managed grant”,i.e.AEA managed construction.The balance of the budgeted tank farm funds would be transferred to other AEA tank farm projects. e There are two options for funding power plant construction:PAIC and LPSD could raise the funds,or AEA could include Port Alsworth in a future funding request (probably FY2018). Please call if you have any questions, Karl Alaska Energy Authority Karl Reiche,P.E. Project Manager 813 W.Northern Lights Blvd Anchorage,Alaska 99503Ph:(907)771-3017 Fx:(907)771-3044 Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 EXECUTIVE SUMMARY This report has been prepared for the Port Alsworth Improvement Corporation (PAIC)to develop a conceptual design for rural power system upgrades in Port Alsworth,AK.The existing power generation facility in Port Alsworth is on an isolated grid with no outside interties or other sources of alternative energy.The power plant and electric distribution system are owned and operated by the Tanalian Electric Cooperative (TEC),a subsidiary of PAIC.The power plant and fuel storage tank farm are under-sized,outdated and in need of upgrades.This RPSU project conceptual design includes a new power plant with community heat recovery and a new tank farm.It also includes minor modifications to the electrical distribution system. An original site investigation was performed by Kris Noonan,David Lockard and Chris Gobah of AEA with Daniel Hertrich of Hatch USA Corporation (Hatch)on May 22,2013.The primary purpose of this site visit was to provide information to the community regarding the AEA RPSU and BFU programs and to obtain reconnaissance level information on potential power generation,fuel storage and hydroelectric projects as well as any other identified energy related needs.A second site investigation was performed by Bob Havemeister of AEA along with John Dickerson of Gray Stassel Engineering (GSE)on October 22,2013.The purpose of the site visit was to gather additional field data on the existing energy infrastructure and inspect the proposed new relocation site. Project Scope:A new power plant and tank farm are proposed to be constructed on PAIC property.The new power plant will include three new generators,state of the art automatic start/stop/paralleling switchgear,remote radiators with variable speed control,a fire suppression system and critical grade exhaust silencers as well as all required engine coolant piping and ventilation equipment. The power plant project will also include a new generation heat recovery system to serve the school and the PAIC community building.A new community step up transformer,buried feeder and 3-phase sectionalizing cabinet will tie the new power plant into the existing community distribution system.The new tank farm will consist of three new 21,000 gallon bulk fuel storage tanks installed in a new lined concrete secondary containment dike along with associated fill and distribution pipelines.The old school tank farm will be demolished and a metered fuel delivery system will be installed for the direct transfer of fuel from the new PAIC tank farm to the existing school day tank. Individual cost estimates for the various scope items are as follows: e $1,894,000 TEC Power Plant (Includes Heat Recovery &Distribution ) e $652,000 TEC Tank Farm e $2,546,000 Total Cost Both Projects Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 INDEX EX@CUtive SUMMALY .........cececcceeeeeeeeeeseteeeseeeeeeeeceeeeeeceeeeeeeeeceaaaaaeaseeeeeeeeeeeseneees Page i INGOX eee eececccccceceecnessseeeeecenseeceeeeaeeeeeteseasuaecseeseenenaasereeegueuaeetsenensaseeeeteesenees Page ii 1.0 IMtrOGUCTION 0.0...eecceceeeeeeeeeeeeeeeeeeaeeeneeeeaseeseeeeeeneeteeeeeeeeaanensanaaaaaes Page 1 1.1 Community DeSCription ..........eee ceeeecneneneeeeeeeeeeeeeeeeteeeeeeeeseeaneeees Page 1 1.2 Site Investigation 00...eee eeccsssecneeeceeeeeeeeeeeeteeeeetenensessaaeeneeees Page 2 1.3 Code Analysis &Deficiencies 2.0.0...cennennseeeseeeeeeeeeneeeneeeeees Page 2 2.0 Existing Facilities...eee eee ceeeeeeeeeeseeeeeeeeeeeeeseeeeeseaaeesseneeseeseeeeees Page 3 2.1 Existing Power Plant............:...::csesssceseeeeeeeeeeeeeeeeeesaeeeeuaaeeeeesetenerecss Page 3 2.2 Existing Tank Farin ........ccccccceeecssrssesseesesseresceeeseeseeseceuneaeensaeeneaees Page 4 2.3 Existing Equipment Suitable for ReuSe........cl ceenteeeeeeeereeee Page 4 3.0 Community Power Demand .......ce ceeseesessseeseseseseeeeeeensesoeeeesaeeeaeaaaenaaes Page 4 3.1 Estimated Future Load Growth...cece cceeeseeeeeeeeeeneseeeaeeeaeaaeouaa Page 4 3.2 Alternative Energy -Heat RECOVETY.............:.:::seseeseeeeeeeeeeeeeneneeeees Page 5 3.3 Alternative Energy -Tazimina Hydro-INNEC Intertie...............Page 5 3.4 Alternative Energy -Tanalian Falls Hydro............ee eeeeeeeeeeeeeeees Page 5 3.5 Alternative Energy -Wind Generation ................cseeeeeeeeeeeeeeeeneeeeeees Page 6 3.6 Alternative Energy -Efficiency Improvements .............ccceceeseeeees Page 6 4.0 Proposed Energy Infrastructure Project Descriptions...............ee Page 6 4.1 TEC Power Plant ...........cccccccccssssscceeeeeneeneseseeeenseaeaeeeeeeeesaaeeeeeteeeeneas Page 6 4.1.1 Generator Selection...c eee ceeeeececneeeeeeeeeeeeeeeeteseneneeenagae Page 7 4.1.2 Switchgear &SCADA...eee cece cece eneeeeeeeeaneeeeeeeneeeeeeeeees Page 7 4.1.3 Step-up Transformer and Grid Connection ..........0....:ceeeeee Page 8 4.1.4 Diesel Generation Heat Recovery System...........:cccsceseceeeseeeee Page 8 4.2 TEC Tank Farin oun...cece eeccceececeeeeeesesseccnaneeeeeeeeeseteeeeeeeseeesssssesanaaees Page 9 4.2.1 Tank Farm Capacity AnalySis..............cccccceseeseeeeceeeeeeeeereeeeenaes Page 10 4.2.2 Proposed Tank Farm DeSCcription ...........ee ceneernenesereeeeeeeee Page 10 5.0 Site Selection &Control 20.0...cece ceeeeeeeeeeeeneeeeeeeeeeaneeeaaanaaeanegea Page 11 5.1 Power Plant Site «0.00.0...ceccecssseeeeeeeeeneeeeaeeeeeeeenecneeseeeeeessenaaeeseneneees Page 11 5.2 Heat Recovery System Areas...eeeeeeeeeeeeeeeeeeseeseneueneeesesennes Page 11 5.3 Power Distribution System Work Areas .............:::ccseeeeeeeeeeeeeeereres Page 11 5.4 Site Control...ccccccsscccceceeeceeceeceaeeeceseeaseaceeeeeeeseeeeeeeeeeeeseneeesees Page 11 Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 6.0 Permitting 0...cccsesececeeeeeeeeeeeeeeneeeaeeaaaaesscsseteeeeeeseneseeeeesensaeaaaaaaoes Page 11 6.1 Environmental ASSESSMENT .........cc eeseccccccseceesseeeeeeeeeeeeeesenaneeeeeeess Page 12 G.2 Fire Code...cceeseenneeceecceeeereseeseesseneeesaeeaaaaaeneceeeeeeeeeeeeeeeeeeeeensees Page 12 6.3 Spill RESPONSEC............cceeeeceeeeeeeeeeeseceeeeeensceeeeesereeseaceeeeeeeesesseatenteres Page 12 6.4 Air Quality Permit...cece ececeecceeeeeeneeeeeeessueeeesssesteeeenseneueeeeenans Page 12 7.0 Construction Plan ..........c:cccccecccccceeeeeeeceeeeeceneeaeeeaeeesesereeeeeeeeeeeeensaaeuaaooas Page 12 7.1 Local Job SKINS 2.0.eeeeceeseseeeeeeeeeeeeeeeeseeseseesseusueeeeeseeeeeeeeees Page 13 7.2 Local EQuipment..............cceccceeeseeeeeeeceseeeeereceeeuaeeereresensuaeseenseesaneaens Page 13 7.3 Material SOUrCES.........cceceeccesessnnnnneceeeeeeceeeeeseetesteesanaeanaaeeeeeeneneess Page 13 B.0 SCHEUIE 2.0.0...cecc ccc cccseeccceaesecerecencaneereeeeeeeeaaaueeseeeseneaeeeseseeegenereseesanes Page 14 9.0 Cost Estimate ..........cc ccccccssseeeseeseceeceeeeeeeeeeeeeeeaaaneaoaeaeseneeeeeeeeseeesenees Page 14 Concept Design DrawingS............cc cecceccesssseseeeeeeseessessaseeeeeseeeneeeeneseeaeae Appendix A Construction Cost Estimates..............ccc eeeeeeeeceeeeeseeseeeeseaeeesseesenaeeeaeeees Appendix B Site Control DOCUMENES ............ccccceececeeeeeeceeeeeeeeeeeseeeeeeeeceeteeesennenaeaeenea Appendix C Electrical Load Data ............cccccccccccccnceceeeeeeeceneeeeeeeeeeseneseeeeseneneeneerentana Appendix D Heat Recovery Worksheet and Graphs 2.0...cece ce ceeeeeeeeseneeeaneeaeees Appendix E Community Correspondence .............cceeceeecsesenseeeeeeeescueeeeeeeeesseenensensanaas Appendix F Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 6.0 Permitting .........cc cccccceeecceeeeeeeeeeeeceeeeeeeesesesaaeaeceeeeesesaeaeeseeeaeaaeetereeeaes Page 11 6.1 Environmental ASSESSMeNt.....0....eee cece ceceeeeeeeteeeeeeeeeeeeneaneneaaneenees Page 12 6.2 Fire COdC.........ccccccsceceseesceeeetecseeseneeeeeeeeseaeeseaaaaeaaaaaaeaseeseeeeeeesereneees Page 12 6.3 Spill RESPONSE...cece ee eeecessessseaeaeeeeeeeeeeeeeeseeeeessesseesssseaaueeeess Page 12 6.4 Air Quality Permit.......ccc eceeccesseeeseeeeeeereeeceteeeesesaaaaeaeaseneneeneeeeees Page 12 7.0 Construction Plan ........cccccceesseeeceeceeeceeeereeceeeeeneseseeeaeaeeresesenaeaeeesenenees Page 12 7.1 Local JOD SKINS...ccc cecceeeeeccenecneneneeeceteeeeteteeseeseneesenseaaaaaaeesens Page 13 7.2 Local Equipment...cseeceeeeeeeeeeeeseeeseeeeeseeeeseeaseessaseseuusanananees Page 13 7.3 Material SOUrCES.............cccceceeceeenneceeeeeeeeeeeseeesecaacaneneeeeeneeeneeteeteeers Page 13 8.0 SCHEdUIE 000.00...cece eeecceesececececeeeceeeeceseaeeeeseeeaeececeneeseteeeesereeseeseeeenanaaaanoaes Page 14 9.0 Cost Estimate ............ccccccccccccnececrcceeececeeeeeeeeceeteeeeeeeeeseeeeeeanensaaaaaagaganaes Page 14 Concept Design DrawingS.............cccsssssseseseeeseeeseseeeeeesseeeseseeeeeeesenenuauenes Appendix A Construction Cost Estimates..............cccccccceeeseeeeeeeeeecaeeeeeeeeresenaeeeeeeesenees Appendix B Site Control DOCUMENTS ............ccccceeseseceeecceeeeaeeseeceeceeeaeeeereeseseauerseeeeaea Appendix C Electrical Load Data ..........ccccccsesceccesceeeeeeeeeeeeeceeeeeeeeeerenneneseteeeeeaaaeeeees Appendix D Heat Recovery Worksheet and Graphs...eee e cece cere teresa nenaaaaaes Appendix E Community Correspondence 000.000....cecceseesseesesseeesensseeneeeseesesneeeeeneneseeees Appendix F Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 1.0 INTRODUCTION This report has been prepared by Gray Stassel Engineering,Inc.for the Port Alsworth Improvement Corporation (PAIC)and the Tanalian Electric Cooperative (TEC).The purpose of this study is to provide a concept design and construction cost estimate for the following potential local energy projects for the community of Port Alsworth: e TEC Power Plant Replacement. e TEC Tank Farm Participants in the project include PAIC,Tanalian Electric Cooperative (TEC)and the Lake and Peninsula School District (LPSD). 1.1 Community Description Port Alsworth is located on the east shore of Lake Clark at Hardenburg Bay,22 miles northeast of Nondalton.It is within the boundary of the Lake Clark National Park and Preserve,at approximately 60.2025°North Latitude and -154.3128° West Longitude.(Sec.4,T1N,R29W,Seward Meridian.)It lies in the transitional climatic zone.Average summer temperatures range from 42 to 62 °F;winter temperatures range from 6 to 30 °F.Annual rainfall averages 26 inches,with 70 inches of snowfall.The current population is 168.Port Alsworth is an unincorporated community located in the lliamna Recording District,the Lake and Peninsula School District (LPSD)and the Lake and Peninsula Borough (LPB).It is not a recognized Native Village and there is no associated Native Corporation. LOCATION MAP SECTION 4,TIN,R29W LAT:60.20°NORTH SEWARD MERIDIAN LONG:-154.31°WEST Snowe FAIRBANKS, ANCHORAGE - PROJECT LOCATION PORT ALSWORTH Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 1.2 Site Investigations An original site investigation was performed by Kris Noonan,David Lockard and Chris Gobah of AEA with Daniel Hertrich of Hatch USA Corporation (Hatch)on May 22,2013.The primary purpose of this site visit was to provide information to the community regarding the AEA RPSU and BFU programs and to obtain reconnaissance level information on potential power generation,fuel storage and hydroelectric projects as well as any other identified energy related needs. A second site investigation was performed by Bob Havemeister of AEA along with John Dickerson of Gray Stassel Engineering (GSE)on October 22,2013. The purpose of the site visit was to gather additional field data on the existing energy infrastructure and inspect the proposed new relocation site.In addition to the data gathered during these site visits,all available information was obtained and analyzed from the following sources: .Port Alsworth Power Cost Equalization (PCE)Data,2010 -2013 .State of Alaska,Dept.of Community &Regional Affairs (DCRA)Community Profile &Map °Port Alsworth,various survey plats °Corps of Engineers wetlands and flood information °Other relevant data. Additional information and input was obtained from the following individuals: ¢Mark Lang,Manager,Tanalian Electric Cooperative,781-2200 ¢Beth Hill,Administrative Assistant,PAIC,781-3033 ¢«Andy Smith,Assistant Plant Operator,TEC,781-2200 ¢Laura Hylton,Business Director,LPSD,246-4280 *Daniel Hertrich PE,Hydro Engineer,Hatch USA LLC,561-2800 *George Hornberger,General Manager,INNEC,571-1259 «Steve Reimer,Illiamna Development Corporation,830-1057 *Steve Stuart,American Marine Inc.,562-2420 ¢TJ Howland,R.T.Casey LLC,232-4254 *Eric Fuglestad,Registered Land Surveyor,248-1911 1.3.Code Analysis &Deficiencies The following is a summary of existing infrastructure analysis and deficiencies observed during the site investigations. «Under-sized generators no longer adequately meet community power demand. ¢Inadequate and under-sized engine cooling system causing overheating problems. ¢Under-sized generator power conductors. *High hours on genset #2 -due for replacement soon. Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 ¢No power plant fire suppression system. ¢Lack of adequate fuel storage capacity. The concept design for all energy projects have been prepared to meet current code and regulatory requirements,which include: *The 2009 Edition of the International Building Code (IBC). ¢The 2009 Edition of the International Fire Code (IFC)and currently adopted Alaska State Fire Marshal Fire and Safety Regulations. *The 2011 Edition of the National Electrical Code (NEC). *The 2011 Edition of the National Electrical Safety Code (NESC). ¢40 CFR,Part 112.1-12,U.S.Environmental Protection Agency Spill Prevention Requirements 2.0 EXISTING FACILITIES The existing power plant and bulk fuel storage facility were visually examined to determine suitability for re-use.The following paragraphs summarize findings for the community. 2.1.Existing Power Plant The existing community diesel generation equipment is located in the school mechanical building on LPSD property.The building was originally constructed to house the school oil-fired boilers and small diesel generators for school self- power generation.The facility also included a generation heat recovery system and a tank farm for diesel fuel used to generate power and heat the school.At that time,there was no community power utility and all local residents self- generated.In the early 1980's,TEC was formed and a long term operating agreement was reached with LPSD for TEC to operate the school power plant to provide power for the entire community and to continue to provide generation heat recovery for school use.Since that time TEC has enlarged the building and installed larger generators as the community has grown and power demand has increased.However,LPSD is currently planning a major school addition and renovation that will require the relocation of the power plant to a new location away from school property.LPSD has agreed to contribute funds to TEC for relocation of the power plant in exchange for the continued delivery of recovered generation heat. A power plant stabilization project was recently completed by TEC and AEA. The scope of the stabilization project was to:1)Replace one of the existing undersized and aged-out generators;2)Upgrade the entire generator cooling system;3)Upgrade the generator power conductors,breakers and control components as required to match the new generator capacity and;4)Replace the existing heat recovery system heat exchanger.This work was performed in order to ensure reliable power generation for the near term future until such time that funding can be secured and a new community power plant can be designed and constructed on the new proposed site.The upgraded plant now contains one new John Deere Model 6090AFM generator rated at 210kW and one 3 Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 existing John Deere Model 6081 generator rated at 154kW.In addition,there is an existing stand-alone 180kW remote emergency backup modular generator located behind the power plant.This unit is approximately 20 years old and is in functional condition but is nearing the end of its useful life. The school is the only end user currently served by the generation heat recovery system.The boilers are located in the school mechanical building along with the community generators so the system is very compact.The entire installation consists of a 2"copper secondary pumped loop from the engine coolant system that runs approximately 10 feet to a brazed plate heat exchanger.The heat exchanger is installed in the school building main heating glycol return line for providing pre-heat to the boilers. 2.2.Existing Tank Farm The existing tank farm is owned by LPSD and is located on school property.It consists of two each single wall 7,650 gallon tanks elevated on concrete pedestals and contained within a lined earthen-berm dike.The facility also provides fuel for the school oil-fired boilers.The tanks and dike are code compliant and in serviceable condition but no longer have adequate capacity for the community power plant and are not deemed suitable for reuse at the new facility.LPSD will offer the tanks for surplus within the community.If there is no local demand for the tanks,they will be decommissioned and demolished as part of this project. 2.3 Existing Equipment Suitable for Reuse None of the existing TEC power generation equipment will be salvaged for use in the new plant with the exception of the new John Deere 6090AFM generator installed during the 2014 stabilization project.The existing step up transformer bank will be left in service and will be reconnected to serve as the step down bank providing 120/208V three phase power to the school.The new heat exchanger and associated piping installed as part of the 2014 stabilization project will remain in service. 3.0 COMMUNITY POWER DEMAND Monthly average load data was obtained from PCE data for FY's 2011 through 2013.This data is included in Appendix D. Based on this data it is estimated that annual power generation has averaged 714,074kKWH (82kW average demand)over the past three years.Generation efficiency is approximately 12kWh/gal.Peak generation of 190kW occurred in July,2010. 3.1 Estimated Future Load Growth It is important to evaluate the impact of planned infrastructure improvement projects on an existing power generation system.New construction and other community improvements can adversely impact the adequacy of existing facilities. Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 Power use in Port Alsworth has been steadily growing over the past two decades.This correlates to a population increase from 55 in 1990 to the current population of 168.Park Service,tourism,and recreation employment all appear to be either stable or increasing so the outlook is for continued steady growth. A school renovation project is currently in the design phase and is expected to nearly double the size of the existing school building. Based on these planned infrastructure improvements and general population trends,it is estimated that over the next 10 years power generation diesel consumption will increase by approximately 25%. 3.2 Alternative Energy -Heat Recovery The TEC generators are currently located in the LSPD school mechanical building.An existing heat recovery system serves the Port Alsworth school.This system will no longer function when the generators are removed.A heat recovery system could be installed at the new power plant to serve the school and also the nearby community center.Analysis of the proposed generation heat recovery system is included in Appendix E.The proposed system is described in Section 4.1.4. 3.3.Alternative Energy -Tazimina Hydro-INNEC Intertie INNEC has recently proposed a project to increase the generation capacity of the Tazimina Hydroelectric Powerhouse from 800kW to 1,200kW.INNEC has also requested proposals for upgrading the power distribution system from the Tazimina Powerhouse to the community of Nondalton,located approximately 25 miles from Port Alsworth on the west end of Lake Clark.If both the Tazimina hydro powerhouse and Nondalton distribution upgrade projects are completed, an intertie to deliver Tazimina hydroelectric power from Nondalton to Port Alsworth may be feasible.Virtually all of the land between Nondalton and Port Alsworth is contained within the boundaries of the Lake Clark National Park.It would therefore likely be extremely difficult to permit a cross-country overhead power line between the two communities.A 25 mile long submarine cable laid in Lake Clark between the communities may avoid National Park Service jurisdiction and provide an alternative method for constructing a distribution intertie.A preliminary conceptual budgetary cost estimate for a potential submarine cable installation between Nondalton and Port Alsworth was provided by an experienced submarine cable installer.They estimate that the cost could range between $20 million and $35 million.If it were possible to obtain an easement across the park property,an overhead power line would likely cost between $10 million and $15 million to construct. 3.4 Alternative Energy -Tanalian Falls Hydro In 2011 Alaska Green Energy,Inc.was awarded a $150,000 grant under the Alaska Renewable Energy Fund Round Ill allocation to produce a reconnaissance study of a potential hydroelectric power project at Tanalian Falls. However,no report was generated and the grant fund was terminated due to lack of progress. Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 Daniel Hertrich of Hatch USA Corporation travelled to Port Alsworth in May,2013 along with a contingent from AEA to tour the Tanalian Falls site and assess the hydroelectric potential for the community.His preliminary report indicated that the site could likely only support a plant of around 6GOkW capacity.This appears to be a relatively small potential benefit compared to the typically high cost of this type of project as well as the challenges of constructing project access and infrastructure within the Lake Clark National Park. 3.5 Alternative Energy --Wind Generation The Alaska Energy Authority/Alaska Industrial Development and Export Authority published a draft Rural Alaska Energy Plan dated December 31,2002 as a follow-up report to the previously released Screening Report of Alaska Rural Energy Plan dated April 2001.The Screening Report evaluated a dozen alternative energy technologies other than diesel engine heat recovery.Only wind energy was identified as alternative energy technology warranting further evaluation in the draft Rural Alaska Energy Plan.According to the Alaska Wind Resource Map the community of Port Alsworth is located in a class 1-3 wind regime and is not a viable candidate for a wind energy program using currently available technologies. 3.6 Alternative Energy -Efficiency Improvements Careful sizing and selection of new generators with advanced technology in conjunction with the installation of new fully automatic paralleling switchgear will maximize the fuel efficiency of the new diesel power plant. With the exception of the previously mentioned systems,there are no other known practical alternative energy sources currently available at Port Alsworth. At this time it appears that generation heat recovery and additional end-use conservation are the only viable fuel-saving technologies available for Port Alsworth. 4.0 PROPOSED ENERGY INFRASTRUCTURE PROJECT DESCRIPTIONS The following proposed facility descriptions are separated into two sections: e Section 4.1,"TEC Power Plant"describes the proposed construction of a new diesel power plant including new generation equipment,switchgear,controls and power grid connection.It also includes a new generation heat recovery system to replace the existing heat recovery system for the school and a new heat recovery extension to the community building. e Section 4.2,"TEC Tank Farm",describes the proposed diesel fuel storage facility to serve the proposed new power plant and the existing School mechanical building. 4.1 TEC Power Plant The TEC diesel power plant is the sole source of power generation for the community of Port Alsworth.Due to the planned school renovation project and subsequent request by LPSD that TEC cease power generation on school 6 Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 property,the decision has been made to relocate the power plant.The new John Deere 6090AFM generator installed during the 2014 stabilization project will remain in service at the old power plant until the new power plant is on line.It will then be relocated to the new plant.Keeping the old power plant on-line during construction of the new power plant will provide power to the community during construction and will eliminate the project cost of providing temporary power.Locating the new power plant in the same general vicinity as the old plant will simplify the new distribution feeder connections and maintain close proximity to the school for heat recovery. The new power plant will be located on the PAIC-owned parcel directly to the north of the school property.The new power plant structure will be a pre- engineered 20'by 50'metal building with concrete slab-on-grade foundation. The power plant site is shown on drawing M1 in Appendix A. The building will have:a generation room that will contain three generators and associated mechanical equipment;a control room which will contain programmable automatic paralleling switchgear and SCADA equipment;and a parts/work room.Other features of the new plant include a fire suppression system,critical grade exhaust silencers,heat recovery equipment,and used oil blending.The power plant layout is shown on drawing M2 in Appendix A. An automatic fill 160 gallon day tank will be installed inside the power plant.It will be equipped with a gear pump,redundant overfill protection and alarm systems,a hand priming pump,and a totalizing meter.The plant will also be equipped with a used oil blending system.Used engine oil will be pumped into a hopper during oil changes.Each time the day tank fills the system will filter and blend used oil with diesel fuel at a ratio of 0.5%of used oil to diesel fuel. 4.1.1 Generator Selection Proper sizing and selection of the diesel generators is critical to meet the community electric loads while minimizing fuel consumption.[In order to efficiently meet the existing electric demands the new power plant will be equipped with three identical John Deere model 6090AFM 75 Tier 2 marine diesel generators.The engines are rated 210kW prime power electrical and have the highest fuel efficiency of any model in their class.In addition,the marine configuration provides approximately twice the potential jacket water heat available for recovery over conventional engines. 4.1.2 Switchgear &SCADA Power will be generated at 480/277V three phase.The new switchgear will have a total of 5 sections:one for each diesel generator;one for master control, metering and the station service breaker;and one for the distribution feeder breaker,which will also house the radiator variable frequency drive controllers. The switchgear will be fully automatic with paralleling capability and will utilize a programmable logic controller (PLC)to automatically match the running generator(s)to the community load. Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 The new switchgear will include a SCADA system for remote generation monitoring.A desktop PC will be provided in the new plant control room to allow operator access and control of the different systems. The new switchgear will provide automatic paralleling and load control of the three generating units.The load control system will monitor the electrical demand on the generators and automatically select the number of generating units required to meet the demand.The switchgear will automatically start the most suitable engine,bring it up to speed,automatically synchronize the unit,and close the engine circuit breaker.When a unit is taken off line,either for maintenance or due to a reduction in electric load,the switchgear will automatically remove the unit from the bus and allow the engine to cool down before shutdown.Generator controls and relaying will provide complete protection and monitoring of each engine-generator and the feeders. 4.1.3 Step-Up Transformer and Grid Connection A new 225kVA pad-mount step up transformer will be installed adjacent to the new power plant.New buried 15kV 3-phase primary conductor will be routed approximately 300 feet in a southerly direction from the step-up transformer to a new 3-phase sectionalizing cabinet.The sectionalizing cabinet will be located on LPSD property and will allow for a four way connection of the following circuits: the new buried 3-phase primary feeder from the new power plant;the existing buried 3-phase primary distribution to the community;an existing buried single phase primary leg;and new 3-phase primary conductors back to the existing school transformer bank. 4.1.4 Diesel Generation Heat Recovery System An analysis of available diesel heat recovery was conducted.The results are included in Appendix E.The analysis indicates that there is adequate excess generation heat available to add a community building connection to the heat recovery system.The community building is estimated to have a total annual heating demand of approximately 2,500 gallons of diesel.After the additions and remodel,the annual heating demand at the school is likely to increase from approximately 10,000 gallons to around 15,000 gallons of diesel.The proposed diesel heat recovery project consists of the following components: e Heat recovery supply and return buried steel arctic pipe (approximately 600 feet of 2-1/2”diameter piping between the power plant and the school mechanical building and 200 feet of 2”diameter piping between the power plant and the community building. e Heat exchanger,pumps and associated equipment in power plant. e Individual heat exchangers with associated equipment in the school and community building. e Energy (BTU)meters in the power plant and at the school. e Alarms for loss of flow,loss of pressure,and no load/backfeed condition with annunciation in the power plant switchgear. 8 Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 e Controls to prevent a discharge (back feed)or low temperature condition in the heat recovery system at the school. An overall area site plan showing the proposed heat recovery pipeline routing is shown on drawing M1 in Appendix A. Based on the analysis in Appendix E,it appears that the proposed heat recovery system may displace over 13,000 gallons of the diesel fuel annually for heating the connected buildings. 4.2 TEC Tank Farm With a total net capacity of just over 13,000 gallons,the LPSD tank farm currently offers less than sixty days of fuel storage at winter peak demand levels.None of the existing LPSD fuel tanks are deemed suitable for reuse at the new tank farm. Therefore,a new bulk fuel storage facility must be constructed at the new power plant site.The proposed new tank farm will be the sole local source of diesel fuel for the power plant and the school mechanical building as there is no other bulk fuel storage facility in Port Alsworth. Fuel deliveries to Port Alsworth have historically been almost exclusively by large freight aircraft.The existing fleet of aircraft capable of efficiently delivering bulk fuel to small gravel runways in remote locations is becoming less reliable as it ages and there are no similar affordable aircraft currently being manufactured to replace them.Therefore the demand on the decreasing number of less reliable large freight aircraft is likely to increase in coming years.As an example,the TEC power plant came within a few days of running out of fuel last winter when the only available air fuel delivery service temporarily lost one of its large freight planes due to an extended mechanical problem.After losing the use of the plane the supplier had difficulty keeping up with statewide demand.Therefore,even if air delivery continues to be the preferred and most cost effective option for the TEC power plant fuel supply,it is imperative to increase the capacity of the tank farm to allow for stockpiling of air-delivered fuel during periods of availability in order to improve the fuel security situation. Unlike many similar remote Alaskan locations,there is a possible alternative to air delivery in Port Alsworth.There are at least two freight companies that can offer delivery of fuel from Homer to Port Alsworth via Pile Bay on Lake Iliamna. The fuel would be delivered in roll-on/roll-off tanker trucks with a combination of ocean landing craft,road trucking and lake barge routing.The current cost of this service is approximately $1.20 over the delivered cost of fuel in Homer ($12,000 for an approximate 10,000 gallon tanker delivery).In January 2014,the posted retail delivery price of No.1 heating fuel on the Kenai Peninsula was $3.63/gallon.Assuming the retail price was paid,this would yield a theoretical cost of fuel delivered to the Port Alsworth tank farm of $4.83/gallon ($1.20 + $3.63).On January 24,2014,an actual air fuel delivery of 4,345 gallons of No.1 heating fuel was delivered to Port Alsworth.TEC total cost was $4.90/gallon delivered to the tank farm.This example shows that it may be possible for barge delivery to compete with air delivery during the ice-free months.However,this delivery method is not currently an option in Port Alsworth due to the lack of local 9 Port Alsworth Energy Projects Concept Design Report Gray Stassel Engineering April 22,2014 bulk fuel storage capacity.Note that a wholesale bulk fuel purchase of 50,000 gallons is like to lower the delivered cost by as much as $0.50/gallon. Based on these factors,it is recommended that the new TEC tank farm have sufficient storage to span the winter months (approx.Oct -May)when lake ice is most likely to limit barge travel.This will ensure that either air delivery or barge delivery will be capable of providing a secure source of fuel well into the future. 4.2.1.Tank Farm Capacity Analysis The tank farm must be designed to meet the current community power generation needs with sufficient capacity to accommodate future growth.The following table compares the current annual power plant diesel use to the proposed tank capacity for the new facility: TANK FARM CAPACITY ANALYSIS Current Future Est.Proposed Proposed Winter Winter Net Gross Shell Season Season Capacity in |Capacity in Diesel Use in |Diesel Use in |Gallons (3)|Gallons Gallons (1)Gallons (2) 42,000 52,500 56,700 63,000 (1) (2) (3) 4.2.2 Proposed Tank Farm Description From Port Alsworth FY13 PCE data -October through May 25%Increase Over 10 Years Net Capacity 90%of Gross Shell Capacity The proposed new tank farm will include a total of three each 21,000 gallon single wall welded steel skid-mounted horizontal diesel storage tanks. Secondary containment will be provided by a lined concrete dike.A buried 3" HDPE coated fill pipeline will run from the dike to a hose connection spill basin located adjacent to Flight Line Road.New 2”welded steel pipelines will also be routed to the power plant for supplying the new 160 gallon auto-fill day tank and to the School mechanical building for supplying the existing 100 gallon auto-fill day tank.Both day tank supply pipelines will include a flanged actuated ball valve for automatic isolation of the pipeline between day tank fill cycles. The EPA requires surface flow containment around a tanker during fuel transfers to a regulated facility in order to prevent fuel spills from entering navigable waters.Surface flow containment requirements for the power plant tank will be met by appropriate grading of the tanker staging area and/or by placement of oil boom during off-loading.The secondary containment dike will provide volume capable of containing the capacity of the largest tank plus 12”of freeboard for precipitation. All fuel and oil piping will be schedule 80 steel with welded or flanged joints. Each isolated section of piping will be provided with pressure relieving devices to account for thermal expansion of product caused by temperature fluctuations.All 10 Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 below grade piping will be HDPE coated with cathodic protection.Provisions for movement of the piping caused by thermal expansion and contraction or ground heaving will be included.All valves will be steel body industrial grade valves intended for use with fuels.See Appendix A,drawing M3 for tank farm layout. 5.0 SITE SELECTION &CONTROL Work for this project will be performed in two general areas as described in the following sections:(5.1)the "Power Plant Site”and;(5.2)the "Heat Recovery System Areas”.There are no known flood hazards at any of these locations. 5.1 Power Plant Site The proposed new power plant site was selected by the community and is within re-platted Lot 1A,Block 9,Alsworth Subdivision,Addition No.9.The new power plant will be located on a new gravel pad area southeast of the existing Community Center building. 5.2 Heat Recovery System Areas The proposed Heat Recovery pipeline mains are routed across Lot 1A,Block 9, Alsworth Subdivision,School Addition and Lot 10A,Block 2,Alsworth Subdivision,School Addition.Work will also be performed inside LPSD and PAIC buildings located on these lots. 5.3.Power Distribution System Work Areas All power distribution upgrades will occur on Lot 1A,Block 9,Alsworth Subdivision,School Addition and Lot 10A,Block 2,Alsworth Subdivision,School Addition. 5.4 Site Control A replat of PAIC Lot 1 and LPSD Lots 1,2,9,and 10 was approved in 2013, signed by all parties in February,2014 and is currently in the process of being recorded.The replat was performed in order to vacate a portion of the Alder Road right-of-way between the PAIC and LPSD properties,to increase the available acreage on the PAIC lot for construction of the proposed new power plant and new bulk fuel storage facility,as well as to consolidate the school property into one lot.A draft sight control opinion letter was requested and will be included in the final CDR.A copy of the draft letter along with the preliminary replat survey is included in Appendix C. The proposed new power plant site is vested in PAIC. The proposed heat recovery system area is vested in PAIC and LPSD. 6.0 PERMITTING The proposed projects are subject to regulations of State and Federal agencies including the Alaska Department of Environmental Conservation (ADEC),the 11 Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 Division of Fire Prevention,Federal Aviation Administration,U.S.Fish and Wildlife Service,and the U.S.Environmental Protection Agency. 6.1 Environmental Assessment An Environmental Assessment (EA)will be completed prior to construction of the proposed projects.An EA is required for all projects that are federally funded or require a federal permit (such as a Corps of Engineers Wetlands Permit).The EA determines whether there is a significant impact to the environment caused by the project.As part of the EA,a Coastal Project Questionnaire will be completed to identify state or federal permits that may be required. 6.2 Fire Code A Plan Review permit from the State Fire Marshal is required for the proposed power plant and tank farm.Final stamped design drawings will be submitted to the Fire Marshal for review prior to construction.Plans will be reviewed for conformance with the International Fire Code and related codes including the International Building Code and the National Electrical Code.The review process typically takes 3 to 6 weeks. 6.3 Spill Response The power plant will have oil storage tanks in excess of 1,320 gallons and will be subject to U.S.Environmental Protection Agency regulations.A Spill Prevention Control and Countermeasures (SPCC)plan will be prepared as part of this project. 6.4 Air Quality Permit Emissions from diesel fired power plants are regulated by the Alaska Department of Environmental Conservation (DEC).There are different levels of permits required based on the quantity of pollutants that the plant has the potential to emit.The new Port Alsworth power plant will have a total diesel engine capacity greater than 736 horsepower but will consume less than 330,900 gallons of diesel fuel per year.Based on these parameters,the new plant will qualify to operate under a Preapproved Emissions Limit (PAEL). 7.0 CONSTRUCTION PLAN The AEA has a history of administering similar projects with a combination of construction management plans for various tasks.For this project it is proposed to use competitive bidding from qualified contractors to perform the following items:1)perform all site prep work;2)form and pour all concrete including building foundation and slab,tank footings and containment dike;3)erect steel building including siding,roofing and interior partitions;4)install tank farm containment liner;and 5)place bulk tanks on footings.The power plant,tank farm and heat recovery system mechanical,electrical,control and piping installations as well as the power grid interconnection will be accomplished using a "modified"force-account basis.Force-account construction involves the owner or grantee acting as the employer and utilizing primarily local labor.This method 12 Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 tends to achieve a higher percentage of local hire and is strongly supported by many communities and funding agencies.The highly technical nature of power generation projects requires a limited number of workers with specific experience and expertise to be brought in for the project when not available locally.All work must be supervised and managed by a superintendent with extensive experience in the construction of rural power generation and distribution systems.All specialty work,such as pipe welding and electrical installation must be performed by skilled craftsmen with appropriate certifications. Mobilization of tools and crew will by airplane.All other materials and supplies will be delivered by landing craft across Cook Inlet to Williamsport,by truck to Pile Bay on Lake lliamna,by flexi-float barge to Newhalen,by truck to the Newhalen River near Nondalton and then finally by flexi-float barge to Port Alsworth.Both project cost estimates and the project schedules have been developed on this basis. 7.1 Local Job Skills An inquiry was made to the City for information regarding the availability of specialty skilled labor in Port Alsworth.The response received is that there is a large pool of skilled local residents with experience in various construction trades. It appears that at a minimum a project superintendent,a pipe welder/mechanical foreman,a journeyman electrician and a journeyman lineman will need to be brought into Port Alsworth for this project. 7.2.Local Equipment There is a considerable amount of privately-owned heavy equipment in the community including:several excavators in size classes from 21 tons to 10 tons; small and medium sized dozers;dump trucks;various size loaders with a variety of attachments;a concrete batch/mixing truck;a screening plant (arriving summer 2014);a Flexi-Float barge;and other miscellaneous heavy equipment. There is also an available staging area and a secure warehouse located in close proximity to the work site. 7.3 Material Sources Gravel will be required for pad development and finish grading at the proposed diesel power plant site.Screened gravel or sand will be required for bedding heat recovery arctic pipe and electric distribution conduit.An appropriately graded gravel will be required for concrete aggregate.There are private borrow sites within the community that contain a variety of pit-run gravel as well as some stockpiles of screened/sorted material.Preliminary inquiries indicate that appropriate materials will be available locally. 13 Port Alsworth Energy Projects Gray Stassel Engineering Concept Design Report April 22,2014 8.0 SCHEDULE The following schedule has been developed on the basis of performing the majority of the field work in 2015.This schedule is contingent on approval of the plan by the project participants as well as on funding availability. e Jun -Oct 2014:Design,permitting,and site control. e Nov 2014 -Mar 2015:Procure Materials. e Apr 2015:Package and stage for shipment. e May 2015:Mobilize materials. e Jun -Sep 2015:Project Construction. e Oct 2015:Power plant commissioning &operator training. e Nov -Dec 2015:O&M manuals and project close out. 9.0 COST ESTIMATE The construction cost estimates have been developed based on a "modified" force-account approach utilizing a combination of local labor,certified craftsmen, and specialty sub-contractors under the direction of an experienced construction manager.Labor rates are based on Title 36 equivalent wages for certified specialty labor and prevailing local force-account wage rates for general labor and equipment operation. Detailed cost estimates are included in Appendix B.Separate estimates have been prepared for the TEC Power Plant and the TEC Tank Farm.A summary of the estimated total costs,including all design,supervision,inspection,permitting, and a 15%contingency,are: e $1,894,000 TEC Power Plant e $652,000 TEC Tank Farm e $2,546,000 Total Cost Both Projects Community in-kind contributions include:$100,000 from LPSD from the proposed relocation agreement with PAIC;the property for the new power plant and tank farm;and one existing genset for relocation to the new power plant. 14 APPENDIX A CONCEPT DESIGN DRAWINGS FUGHTLINEROAD.VERIFY LOCATION OF BURIED SERVICE CONDUCTORS AND RE-ROUTE AS REQUIRED FOR NEW CONSTRUCTION Se HOSE NEW 3°_-4,000 GALCONNECTIONBURIEDFuelCONTINGENCY SPILL BASIN FILL PIPELINE TANK a i COMMUNITY |CENTER Y BUILDING Of | eT STARS BOULDERS PLACED FOR TRAFFIC CONTROL,(TYP) as ade / CO eo00adLd EOGE OF EXISTING GRAVEL PADS AND ROADS,TYP 40"TANK ; 'SETBACK,TYP | i t f t t ! i \ 4 \'EXISTING 1a12.49/7.2kV THREE {i] 4 \ PHASE PRIMARY DISTRIBUTION 10. COMMUNITY CLASS.Pz .WATER WELL oN TREE UNE,1ae i |ta)afi1 aSnewKk)\|EXISTING SINGLE H N |PHASE PRIMARYPOWERytPunt|HON Ste ie \ SHEET W2 .+excavate \YJOEXTEND'\EXISTING 'GRAVEL \ =dq |PAD FOR \NEW 225kVA,POWER iAraSy©PLANT \TRAYSFORMER 225 'AND TANK \ NL peru \'xLoSj \50't ---e he Ncon \- |N ,1 i \AS;Jn S iNEWBURIED2°''NEWHEATRECOVERYi&THREE.PHASE7]SUREae RETURN f &PRIMARY FEEDER \NEW 3-PHASE r 1 1 ' 1 1 i | ( i 1 i i ( { 4 1 1 t ( t 4 4 i i ' 'SECTIONALIZING CABINET REPLACE EXISTING 15kv. CABLE AS REQUIRED TO CONNECT TO SCHOOL 3--PHASE TRANSFORMER BANK -- NEW BURIED 2-1/2" HEAT RECOVERY SUPPLY &RETURN PIPELINES NEW BURIED 2°SCHOOL DAY ra 'SUPPLY PIPELINE. OLD POWER PLANT (SCHOOL) FUEL TANKS TO BE TAKEN OUT OF SERVICE AND REMOVED. OLD POWER PLANT 'SUBSTATION & EMERGENCY: BACKUP GEN TO BE ABANDONED/ SETBACK/SEPARATION REQUIREMENTS 5'FUEL TANKS 10 BUILOINGS THE NEW POWER PLANT BULK FUEL STORAGE TANKS WILL NEED TO COMPLY WITH THE REQUIREMENTS OF THE 2012 INTERNATIONAL FIRE CODE AND STATE OF ALASKA REC 40"FROM 12,001-30,000 GAL BULK STORAGE TANKS TO THE NEAREST PROPERTY LINE WHICH IS OR CAN BE BUILT UPON. 75'FROM FUEL TANKS AND PIPELINES TO CLASS C PUBLIC WATER WELLS GULATIONS.THE FOLLOWING MINIMUM CLEARANCES ARE REQUIRED: CONCEPT DESIGN NOT FOR CONSTRUCTION EXISTING SCHOOL BUILDING GRAVEL PARKING PROVECT: PT,ALSWORTH POWER SYSTEM UPGRADE TTLE: OVERALL PROJECT SITE PLAN PO.111408,Anonorage,AK BUSTY (WO7)SAGO100 DRAWN BY:JID.SCALE:t"=20'-0" DESIGNED BY.BCG DATE:APRA 2014 'SHEET:Fur WWE PTALPP_M1 oF PROSECT NUMBER:M 1 3 Ay)AS}Ay 1@ |(@ t ©t(ee L_Ro Red 1 Mz 1 |||FIRE.SUPPRESSIONq[i CONTROL PANEL TT ]HH H+I HL}]£I iat @ ory H He aa <[|2 Las He}FIRE SUPPRESSION AGENT RACK OF Desk 5 OFiS| S|a =]USEDOL Fe c=]O CABINET.UNITWegOHEATERCUH=1 (USED Ny iO} ou MASTER . HOPPER &GENG2 SWITCHGEAR210K SY reaver & h60 GALLON veo DAY TANK GENERATION ROOM CEN we FUEL FILTER,METER a &APPUTENANCES STATION.SERVICE PANELBOARD GEN FIRE RSTATIONSERVICEEXTINGUISHERTRANSFORMER, 3A40BC,TYP(3)GEN B 'a []@/ (CV EQUIPMENT LAYOUT PLAN | 6 12"tr (2 BUILDING SECTION AT GENERATOR #3 (3 TYPICAL EXHAUST FAN INSTALLATION IN_OVERHANG2 M2_/sO Soe CONCEPT DESIGN NOT FOR CONSTRUCTION PROVECT: PT.ALSWORTH POWER SYSTEM UPGRADE TITLE: POWER PLANT PLAN,SECTION &DETAILS Gra DRAWN BY:JID SOA:aS NOTEDNieOESONEDBY:BCE DATE:APRIL,2014 x Engineering,inc.[iH PTALPP WZ HeeFPOCTTtaG6,Anchorage,AK BOSIT (BaTaeeoTO0 |PROMECT NUMBER M 2 3 3 PLL 2°SUPPLY PIPELINE TOPIPELINE\SCHOOL DAY TANL ag a fi TANK 21,000.GALLONSpaoox O Om 12'9425°LONG |e6°|ne +{-cr) TANK #2 21,000.GALLONS°°O Dest)Op12'6x25"LONG b> a ne TANK 93 21,000 GALLONStbaooOL CO)Ope 47'9428"LONG f=!T2°SuPeLy {_PIPELINE 7 +}..BOWER PLAT AYN tTANK [-f--. (CT DIKE PIPING PLAN TN PIPELINE FILTER AND ACTUATED BALL VALVE FOR SCHOOL FUEL SUPPLY S$”FILL PIPELINE TO HOSE CONNECTION SPILL BASIN 2°SUPPLY PIPELINE TO SCHOOL DAY TANK (BEHIND) OlESEL 7-1"FLANGED PRV VERTICAL STRUT BOLTED TO HORIZONIAL STRUT, TYP(2),LENGTH AS REQURED PIPELINE FILTER AND ACTUATED BALL VALVE FOR POWER PLANT FUEL SUPPLY 2°POWER PLANT DAY TANK 'SUPPLY PIPELINE.\ aTOERSESENODYNNyREE3°WELD TEE,TP3°90°WELD ELBOW 3°FIXEDSFLOATING FLANGE FL! 247 OVERALL LENGTH,TYP(2) (2NDIKE PIPING DETAILS CONCEPT DESIGN NOT FOR CONSTRUCTION PROJECT: PT.ALSWORTH POWER SYSTEM UPGRADE TANK FARM DIKE PLAN &ELEVATION DRAWN BY:JTD SCALE,AS NOTED oie!DESGNED BY:8G DATE:PRL 2014WNEngineering,nc,[©PTALPP_M3 SHEET 70 _T1IA06,Anchorage.AK B61)(BOT WIAG0T0N |PROKCT MARKR M3 3 APPENDIX B CONSTRUCTION COST ESTIMATES Port Alsworth Energy Projects Power Plant CDR Cost Estimate ITEM QUAN]UNIT UNIT MATL UNIT |LAB j LAB LABOR CONTR TOTAL COST COST HRS |HRS |RATE COST COST COST Power Plant Site Work &Building Erection (Contractor) Excavate &Prep Site 1]lump $0 $0 100 100]$95 $9,500 $9,500 NFS Gravel (2"Minus)80]cu.yd.$60.00 $4,800 0.50 40|$95 $8,600 $8,600 Select Gravel (1"Minus)80{cu.yd.$60.00 $4,800 0.50 40]$95 $8,600 $8,600 Building Foundation &Slabs 751 cu.yd.|$400.00 $30,000 5|375)$95 $65,625 $65,625 50'x 20'Metal Building 1|lump |$125,000 $125,000 |1,000}1,000}$95 $220,000 $220,000 Final Grade 1}lump $0 $0 20 20}$95 $1,900 $1,900 Contractor Equipment Spread 1}lump $20,000 $20,000 $20,000 $20,000 Freight to Port Alsworth 4|flats $14,000 $56,000 $56,000 $56,000 Contractor Subtotal $390,225 Power Plant 210 kW Genset (JD 6090AFM)2}ea.$90,000 $180,000 30 60}$95 $5,700 $185,700 Move &Reinstall Existing 6090 1]ea.$0 $0 50 50}_$95 $4,750 $4,750 Switchgear 1|ea.|$240,000 $240,000 100]100]$95 $9,500 $249,500 Fire Suppression 1|lump $0 $0 80 80]$95 $7,600 $40,000 $47,600 Sheet Metal Fabrications 1}lump $10,000 $10,000 120 120}$95 $11,400 $21,400 Radiators 3|ea.$12,000 $36,000 20 60]$95 $5,700 $41,700 Coolant Piping &Equipment 1{tump |$30,000 $30,000 200 200}$95 $19,000 $49,000 Day Tank,Hopper,Blender 1)lump $8,000 $8,000 60 60}$95 $5,700 $13,700 Day Tank Appurtenances 1]lump $6,000 $6,000 30 30}$95 $2,850 $8,850 Day Tank and Blender Panels 1{lump |$15,000 $15,000 40 40!$95 $3,800 $18,800 Fuel &Oil Pumps 1}lump $5,000 $5,000 30 30}$95 $2,850 $7,850 Fuel,Oil,&Exhaust Piping 1;lump $10,000 $10,000 80 80}$95 $7,600 $17,600 Hoses &Fittings 1]lump $3,000 $3,000 20 20;$95 $1,900 $4,900 Pipe Insulation 1}lump $3,000 $3,000 40 40|$95 $3,800 $6,800 Instrumentation 1}lump $5,000 $5,000 20 20;$95 $1,900 $6,900 Conduit,Cable &Elec Equipmen 1{lump |$20,000 $20,000 300 300}$95 $28,500 $48,500 Misc Strut,Hangers,Fasteners,§1{lump $6,000 $6,000 60 60}$95 $5,700 $11,700 Signs &Valve Tags 1{lump $1,000 $1,000 30 30}$95 $2,850 $3,850 Fill Coolant &Lube 5]drums $800 $4,000 2 10]$95 $950 $4,950 Step-Up Transformer and Grid Connection 225kVA Step Up Transformer 1]ea.$20,000 $20,000 80 80}$120 $9,600 $29,600 Buried Feeders &Cabinet 1]lump $15,000 $15,000 100 100]$120 $12,000 $27,000 Heat Recovery 2-1/2"Arctic Pipe 600}ft $40 $24,000 0.25 150|$95 $14,250 $38,250 2"Arctic Pipe 200|_ft.$40 $8,000 0.25 50}$95 $4,750 $12,750 End User HXer,Pipe,Devices 2|ea.$10,000 $20,000 100 200}$95 $19,000 $39,000 End User Energy Meters &HR P 1]ea.$12,000 $12,000 30 30}$95 $2,850 $14,850 B-1 CDR Cost EstimatePortAlsworthEnergyProjectsPowerPlant ITEM QUAN |UNIT UNIT MATL UNIT |LAB |LAB LABOR CONTR TOTAL COST COST HRS |HRS |RATE COST COST COST Propylene Glycol 5|drums $800 $4,000 2 10]$95 $950 $4,950 Miscellaneous Misc Hardware 1]lump $2,000 $2,000 0 0 $0 $2,000 Misc.Welding Rod,Gases,Etc.1}lump $5,000 $5,000 0 0 $0 $5,000 Misc Tools &Safety Gear 1|lump $5,000 $5,000 0 0 $0 $5,000 Overhead Rent Heavy Equip 1}Jump $20,000 $20,000 Pickup Truck Rental 4]mo.$2,400 $2,400 Welder/Compr/Misc Tool Rent 1}lump $5,000 $5,000 Project Diesel Fuel/Gasoline 1}lump $10,000 $10,000 Commission/Train Operators 40]hr 1 40}$95 $3,800 $3,800 Superintendent Overhd Off-Site 40|hr 1 40}$95 $3,800 $3,800 Superintendent Overhd On-Site 40}hr 1 40]$95 $3,800 $3,800 Crew Travel Time 60}hr 1 60}$95 $5,700 $5,700 Crew Airfares 10}trips $8,000 $8,000 Crew Per Diem 160}mn.dy $9,600 $9,600 Housing Rent 4]mo.$8,000 $8,000 Freight to Port Alsworth 3}flats $14,000 $42,000 $42,000 Air Mob/Demob 1|lump $12,000 $12,000 Miscellaneous Air Freight 1}Jump $10,000 $10,000 Construction Sub-Total $697,000 2,190 $212,550 $557,225 $1,466,775 Engineering Design &Permitting 1{_lump $90,000 Construction Administration 1}lump $90,000 Project Sub-Total $697,000 $212,550 $737,225 $1,646,775 Contingency 151%}$247,016 Total Project Cost|$1,893,791 Port Alsworth Energy Projects Tank Farm CDR Cost Estimate ITEM QUAN |UNIT UNIT MATL UNIT |LAB |LAB LABOR CONTR TOTAL COST COST HRS |HRS |RATE COST COST COST Tank Farm Site Work,Dike &Tank Installation (Contractor Excavate &Prep Site 1|lump $0 $0 100}100;$95 $9,500 $9,500 Gravel (2"Minus)200|cu.yd.$60 $12,000 0.50 100}$95 $21,500 $21,500 Select Gravel (1°Minus)150]cu.yd.$60 $9,000 0.50 75|$95 $16,125 $16,125 Form Lumber,Lags,Nails,Etc 1{lump $1,500 $1,500 0 O}$95 $1,500 $1,500 Concrete Dike 45]cu.yd.$400 $18,000 5 225)$95 $39,375 $39,375 Concrete Tank Foundations 10]cu.yd.$400 $4,000 3 30}$95 $6,850 $6,850 Stair/Stringer Fabrication 1}lump $1,000 $1,000 20 20]$95 $2,900 $2,900 Dike Membrane Liner 2,700}sq.ft.$1.50 $4,050 |0.010 27|$95 $6,615 $6,615 Non-Woven Geotextile 8,100]sq.ft.$0.15 $1,215 |0.002 16|$95 $2,754 $2,754 Dike Drain &Sump 1]lump $800 $800 |20.00 20}$95 $2,700 $2,700 Place Tanks on Foundations 3}ea $0 $0 6 18]$95 $1,710 $1,710 Final Grade 1]lump $0 $0 20 20]$95 $1,900 $1,900 Contractor Equipment Spread 1]lump |$10,000 $10,000 $10,000 $10,000 Tanks &Freight to Port Alsworth 4]flats $14,000 $56,000 $56,000 $56,000 Contractor Subtotal $179,429 Tank Farm New 21,000 Gal SW Tank 3]ea $45,000 $135,000 0 O|$95 $0 $135,000 Min 4K Gal Contingency Tank 1]ea $5,000 $5,000 10 10|_$95 $950 $5,950 Emergency Vents 3]ea $450 $1,350 2 6|$95 $570 $1,920 Pressure/Vacuum/Whistle Vents 3|ea $450 $1,350 2 6|$95 $570 $1,920 Clock Type Gauges 3}ea $450 $1,350 2 6{$95 $570 $1,920 6'Chain-Link Fence 200]tin.ft.$12.50 $2,500 0.35 70}$95 $6,650 $9,150 3”Sch 80 Coated Buried 200]lin.ft.$30.00 $6,000 0.25 50|$95 $4,750 $10,750 3"Sch 40 Inside Dike 60|lin.ft.$25.00 $1,500 0.12 7{_$95 $684 $2,184 2"Sch 80 Coated Buried 40]lin.ft.$17.50 $700 0.25 10}$95 $950 $1,650 2"Sch 80 Inside Dike 20]lin.ft.$15.00 $300 0.12 2|$95 $228 $528 1"Sch 160 PRV Piping 20]lin.ft.$7.00 $140 0.10 2|$95 $190 $330 Misc Strut &Pipe Clamps 1]lump $1,500 $1,500 20 20|$95 $1,900 $3,400 Flexible Connectors 4|ea $175 $700 1 4|$95 $380 $1,080 Manifold Fittings 1}lump $1,000 $1,000 40 40}$95 $3,800 $4,800 Flanged Ball Valves 1}lump $2,500 $2,500 10 10}$95 $950 $3,450 Flanged Check Valves 1|lump $300 $300 2 2|$95 $190 $490 Misc Threaded Ball Valves 1}lump $100 $100 10 10|$95 $950 $1,050 2"Actuator Valves 1}ea $2,200 $2,200 2 2}$95 $190 $2,390 1"Flanged PRV i{ea $500 $500 1 1{$95 $95 $595 B-3 Port Alsworth Energy Projects Tank Farm CDR Cost Estimate ITEM QUAN |UNIT UNIT MATL UNIT |LAB |LAB LABOR CONTR TOTAL COST COST HRS |HRS |RATE COST COST COST 2"Pipeline Filter 1}ea $1,300 $1,300 4 4}$95 $380 $1,680 Area Lighting 1]lump $500 $500 10 10}$95 $950 $1,450 Conduit,Conductors,&Devices 1}lump $3,000 $3,000 20 20|$95 $1,900 $4,900 School Day Tank Supply Pipetine 2"Sch 80 Coated Buried 300]lin.ft.$16.50 $4,950 0.10 30;$95 $2,850 $7,800 Flexible Connectors 1]ea $205 $205 1 1}$95 $95 $300 Manifold Fittings 1|lump $250 $250 6 6|$95 $570 $820 Flanged Bali Valves 1}ea.$155 $155 1 1}$95 $95 $250 2"Actuator Valves 1]ea $2,200 $2,200 2 2|$95 $190 $2,390 2"Pipeline Filter 1 ea $1,300 $1,300 4 4 $95 $380 $1,680 Cable-In-Conduit 1}lump $1,000 $1,000 8 8}$95 $760 $1,760 Replace Day Tank Pump &Appu 1}lump $5,000 $5,000 20 20;$95 $1,900 $6,900 School Tank Farm Demolition Demolish Piping 1]lump $0 $0 40 40}$95 $3,800 $3,800 Purge &Clean Tanks 1]lump $5,000 $5,000 40 40|$95 $3,800 $8,800 Demolish &Dispose of Tanks 1}lump $1,500 $1,500 40 40|$95 $3,800 $5,300 Miscellaneous Portable Fuel Transfer Pump 1]ea $1,000 $1,000 0 Oo}$95 $0 $1,000 Signs &Valve Tags 1]lump $250 $250 10 10}$95 $950 $1,200 Spill Response &Smart Ash 1]lump $6,500 $6,500 0 O|$95 $0 $6,500 Misc Tools,Gear,Welding,Etc 1{Jump $3,000 $3,000 0 O|$95 $0 $3,000 Overhead Rent Local Equipuipment 1]lump $12,500 $12,500 Pickup Truck Rental 1{_mo.$600 $600 Misc Tool Rent 1{lump $2,500 $2,500 Welder/Compr/Misc Tool Rent 1{lump $5,000 $5,000 Project Diesel Fuel/Gasoline 1{lump $1,500 $1,500 Commission System &Training 15]hr 1 15]$95 $1,425 $1,425 Superintendent Overhd Off-Site 10]hr 1 10}$95 $950 $950 Superintendent Overhd On-Site 10]hr 1 10}$95 $950 $950 Crew Travel Time 24)br 1 24)$95 $2,280 $2,280 Crew Airfares 4|trips $2,400 $2,400 Crew Per Diem 60}mn.dy $2,520 $2,520 Housing Rent 1]|_mo.$1,500 $1,500 Freight to Port Alsworth 1}flat $14,000 $14,000 $14,000 Air Mob/Demob 1}lump $6,000 $6,000 B-4 Port Alsworth Energy Projects Tank Farm CDR Cost Estimate ITEM QUAN |UNIT UNIT MATL UNIT |LAB |LAB LABOR CONTR TOTAL COST COST HRS |HRS |RATE COST COST COST Miscellaneous Air Freight 1}lump $5,000 $5,000 Construction Subtotal $201,100 1,205 $52,592 $232,949 $486,641 Engineering (Design &CCA)1{lump $40,000 Construction Management 1}lump $40,000 Project Subtotal $201,100 $52,592 $312,949 $566,641 Contingency 15|%$84,996 Total Project Cost $651,637 B-5 APPENDIX C SITE CONTROL DOCUMENTS SET 5/8"x 50°REBAR W/2”DIAMETER AI CAP @ SET)1/4,DIA RED PLASTIC CAP ON 5/8”x 30"REBAR eB RECOVERED 2 1/2"WA AM CAP Cl RECOVERED 1/27 REBAR PEP PLAT wh RECOVERED US SURVEY MONUMENT RECORO BEARING /OISTANCE ADJACENT PROPERTY UNES SPECIAL NOTES AND RESTRICTIONS 1 SONS ON THiS SUBOMSION MAY OR Mar NOT BE SUITABLEVENTIONALON SME WASTE DISPOSAL SYSTEMS NGPERSONMA'CONSTRUCT,INSTALL,MAINTAIN,OR OPERATE APRESSURIZEDWATERSYSTEM.OR A WATER BORNE WASTE DISPOSAL SYSTEM UMLESS APPROVAL OF THE STATE DEC. 1S OBTAINED. 2 STATE OF ALASKA REQUIRES ALL WASTE WATER DISPOSALTrstewe,meLUGIG Pit PROTES,TO BE A MMUMOM OF 10 FEET FROM ANY WATER SOURCE AND FROM ORUINARY HICH WATER 1 ALL MEASURED BEARINGSSHOWN ARE TRUE BEARINGS AS ORIENTATEDAND.THE MEASURED DISTANCES SHOWNIREREDUCEDTOHORIZONTALMELDDISTANCES 2 THE MINIMUM CLOSURE OF THE TRACT AND PARCEL BOUNDARIES AS FIELO MONUMENTED EXCEEDS 15000 3 SOURCE OF RECORD INFORMATION IS THE PLA)"NATWICK HEIGHTS SUBDIVISION”,PLAT 2013-3,LAMINA RECORDING DISTRICT 4 THIS SUBDIVISION IS LOCATED WITHIN THE QBOLINDS OF THE LAKE AND PENINSULA BOROUGH LAKE AND PENINSULABOROUGHAPPROVAL THE UNDERSIGNED HEREBY CERTIFIES THAT THIS PLAT HAS BEEN APPROVED BY THE PLATTING AUTHORITY,AND MEETS THE REGUIREMENTS CONTAINED IN CHAPTER 9.06 OF THE LAKE ANG PENINSULA BORGUGH CODE OnE oT RIBEG ANO SWORN TO BEFORE ME THIS Day OF FOR 201 0 COMMWSSON EXPIRES NOTARY PUBUC IN AND FOR ALASKA \ALSWORTH SUBDIVISIO \BLOCK 1 |\ N\ ADDITION No.1 \ \PLAT 80- BLK2 ao aot _ba}_\a -Lo43-7 oa Rod aol iy \aT jLLOW Xs \\|_--T 5 Z/\\\ .J \\ BLOCK 44 \\ LL TTREREBY CERTIFY THAT|AM PROPERLY REGISTERED AND LICENSEDTGPRACTICELANDSURVEVINGINTRESTATEOFTHISPLATREPRESENTSASUPVEYMADEOnUeberaeDrReCTSUPERVISION,THAT THE MONUMENTS SHOWN HEREON ACTUALLY EXIST AS DESCRIBED.AND THAT AL OMENSIONS AND OTHER DETALS ARECORRE: oa ERCP PUGESTD RLS 7218 LININEp gone \(ALSWORTH \ouca\3 \ LOT 710A(=oes AC.-<6 --T |ADDITION No.7 \ \2 PLAT 96-5 °cae \9Aa _aa _-_o50°RAD.WITH 50°"RADIUS CURVE RETURN,TEMPORARY =TURN-AROUND TO BE VACATED WHEN ALTERNATE EXIST IS CONSTRUCTED 4 ADDITION No. PLAT 80-2 10°UTLITLY _ \pe _ ALSWORTH SUBDIVISION --_ Clara USGS Guap (ARE CLARK (Ad) VICINITY MAP CERTIFICATE OF OWNERSHIP AND DEDICATIONTHE OWNEL!ON THIS PLAT + By SEWER,MATER.ELECTRKALPHONE,CABLE,DRAINAL on owe Fre set Ota!Bort Anmactn improvement Corp Late a PeanutsSchoo!tatnctGenwolDolvwyPO.Bo. Bort Aawoeth.AK 9068S *ax 99813 SUBSCRIBED AND SWORN JO BEFORE ME THIS Day OF 201 FOR Bort Tawarit moravernent Com WF Conmasson EXPORTS (ROTARY PUBLIC Hf AND FOR ALASKA SUBSCRIBED AND SWORN TO BEFORE ME THIS Day OF FOR 201 Tone E Pennants Schoot Bairict WY COMMON EXPIRES WOTARY PUBIC IN AND FOR ALASKA Gar SCaLe eo ae roe :fone 4 "toot ALANA RECORDING DISTRICT PLAT OFALSWORTH SUB, A REPLAT OFw--LOTS 1.29,&30.BLOCK2,ALSWORTH SUB ADDNNo 1Plat80-2,homes Recording OstratAREPLATOF ---LOT 1 BLOCK 9,ALSWORTH SUB ADO'NNo 7?-- MA VACATION OF A PORTION OF ALDER ROAD -- Prat 96-5,thomna RecordngOrstact PA SCHOOL ADO'N CREATING LOTS 1A,GLK9&LOT 104 BLK2 LOCATED WITHIN PARTALLY SURVEYED SECTIONS 9 VOWNGHIP 1 NORTH,RANGE 29 WEST.SEWARD MERIDIAN,ALASKA CONTARING 32 ACRES PREPAREDrr oo me as mm 10205 [we Y\ERIC P.FUGLESTAD SS LAND SURVEYOR \) 2223 TUL DR.ANCHORAGE.AK 99517Prone,(907)248-199 a ee eetomEyverfooF APPENDIX D ELECTRICAL LOAD DATA kWHPort Alsworth Monthly kWH Generated 80,000 MFY 2011 MFY 2012 OFY 2013 a. 70,000 60,000 +4 50,000 74 40,000 +- 30,000 +4 20,000 ++ 10,000 ++ Jul D-1 Jun kw120 100 80 60 40 20 Port Alsworth Average kW Load D-2 @FY 2011 BFY 2012 OFY 2013 i =a 4 =THa== yor = an all ean an Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Month Port Alsworth Monthly Peak Recorded Loads 200 180 4 160 4 140 4 60+ 405 204 mFY 2011 FY 2012 OFY 2013 iJul Oct Nov D-3 kWH900,000 800,000 700,000 600,000 500,000 400,000 300,000 200,000 100,000 Port Alsworth Annual kwH Generated mFY 2011 M@FY 2012 OFY 2013 FY 2011 FY 2012 Year FY 2013 APPENDIX E HEAT RECOVERY WORKSHEET AND GRAPHS Page 13/5/2014 School-Community Building PORT ALSWORTH RECOVERED HEAT UTILIZATION SIMULATION WORK SHEET:SCHOOL &COMMUNITY BUILDING PROGRAM RESULTS: Annual O&M cost:0 $/year.[] Cost Estimate $[Savings,year 0,gallons 13657 ] Fuel heat value 138000 Btu/gall.[ Fuel cost 0.00 $/gallor Fuel cost escal.0 /year Power increase 0 /year Discount rate 0 /year GEN DATA:Jacket Water Only SYSTEM LOSS DATA: Heat rate at kw-load above 0 3100 Btu/kwh Constant losses: Heat rate at kw-load above 0 3100 Btu/kwh Plant piping:5000 Btu/hr.Piping main insulated,branch piping &flexes bar Heat rate at kw-load above 0 3100 Btu/kwh Buried Arctic piping:10000 Btu/hr.(550'of 75mm @ 0.14)*(170F-40F} Heat rate at kw-load above 0 3100 Btu/kwh Genset Eng.Preheat 10000 Btu/hr.Pre-heat 2 offline engine: Heat rate at kw-load above 0 3100 Btu/kwh Total constant:29000 Btu/hr. Heat rate at kw-load above QO 3100 Btu/kwh Heat rate at kw-load above 0 3100 Btu/kwh Variable losses: Heat rate at kw-load above 0 3100 Btu/kwh Radiators/Exter Pipe 50 Btu/hr.xF Amot normally closec Heat rate at kw-load above 0 3100 Btu/kwh Plant Heating 50 Btu/hr.xF Control room only,genr rm heated by running engin Heat rate at kw-load above 0 3100 Btu/kwh 0 Btu/hr.xF Heat rate at kw-load above 0 3100 Btu/kwh GENERATION DATA:See Not WEATHER DATA NOTE:Generation data estimates based on PCE data FY2013 Kwh/month:HDD/Month:Port Alsworth Monthly Av.January 63,984 1582 86 February 57,120 1354 85 March 62,496 1319 84 April 57,600 932 80 May 58,776 626 79 June 66,240 355 92 July 72,168 246 97 August 66,240 306 92 September 72,168 530 97 October 63,240 949 85 November 62,640 1237 87 December 64,728 1499 87 BUILDING DATA Fuel use,Non-Boiler gallons Seasona Seasona Efficiency Building in use,1=yes,0=nc School 15000 0 75%1 1 1 1 1 0 0 0 1 1 1 Com Cente 2500 1000 75%1 1 1 1 1 1 1 1 1 1 1 -0 0 0%0 0 0 0 0 0 0 0 E-1 3000 2500 2000 1500 1000 HeatingFuelSaved(GallonsPerMonth)500 Port Alsworth Estimated Recovered Heat Delivered -@ 20,171 Gal/Yr -Total Heat Available -@=-13,657 Gal/Yr -School &Community Building NS - DE-2 10 11 12 APPENDIX F COMMUNITY CORRESPONDENCE PORT ALSWORTH IMPROVEMENT CORPORATION P.O.Box 9998 PORT ALSWORTH,AK 99653 May 9,2013 Sandra Moller Deputy Director Alaska Energy Authority 813 W.Northern Lights Blvd. Anchorage,AK 99503 Dear Ms.Moller, We recently sent you a letter inquiring about the potential to assist us in a bulk fuel tank farm for our community.As we continue to address this issue,we realize that we must also address the issue of our diesel powerhouse system.We strongly feel that it would be more efficient to upgrade both systems at the same time. Our diesel generators are reaching an age where they will need more frequent repairs. Unfortunately,parts for these generators will be difficult to purchase as they do not make these models anymore.In addition,our generator shed is owned by and located on the Lake and Peninsula School District's property and discussions have been underway to relocate the generator shed.If this occurs,we feel that this would be a good time to build a new powerhouse. Furthermore,we feel that we must begin exploring options for renewable resources.With our previous letter addressing the difficulties of fuel deliveries and our need for a new powerhouse,it would be more efficient to plan for the future possibility of renewables and to build our powerhouse accordingly.We have started exploring hydroelectric and are also wishing to explore biomass.If there is anything that the Alaska Energy Authority can do to assist us in this process we would greatly appreciate it. Sincerely, Seth Kroenke Vice President Port Alsworth Improvement Corporation PRESIDENT,GLEN ALSWORTH,JR.1(907)781-2218 GALSWORTH@AOL.COM PAIC ADMINISTRATOR,BETH HILL 1(907)781-3033 BETH4SNOW@GMAIL.COM PORT ALSWORTH IMPROVEMENT CORPORATION P.O.Box 9998 PorRT ALSWORTH,AK 99653 June 3,2013 Sandra Moller Deputy Director Alaska Energy Authority 813 W.Northern Lights Blvd. Anchorage,AK 99503 Dear Ms.Moller, Thank you for AEA's recent visit to Port Alsworth.This was a great opportunity to assess our needs.With the information we have gathered,we feel that it is important to keep moving forward with a powerhouse and bulk fuel upgrade.Recent events and aging generators have created a need for action. Currently,we are working with the Lake and Peninsula School District (LPSD}on relocating and rebuilding our powerhouse building.The LPSD is in the process of expanding our local school and they must move the existing generator shed.During the relocation they will fund the rebuild of a new powerhouse building.However,before we can proceed we need an engineer to complete a Conceptual Design Report. I believe that David Lockard has already begun the process of a bulk fucl system upgrade for our community.Inspection of our bulk fuel tank farm revealed that our tanks are outdated and do not meet code.We would like to upgrade to a code-compliant bulk fuel system at the time of our powerhouse relocation and increase our fuel storage capacity. This will also need to be included in the Conceptual Design Report. In addition,it would be opportunistic to upgrade our power system at this time. Upgrading our power system is becoming a necessity.In the last two weeks we have begun to experience daily power outages,often several times a day.Although we are maintaing our generators to the best of our ability and working to fix the existing problem,we cannot maintain the generators at a reliable standard for much longer.We are in need of immediate assistance to upgrade our power system because our existing high hour generators cannot meet the load demands of our community. Again,thank you for your time and assistance. Sincerely, Glen Alsworth,Jr. President Port Alsworth Improvement Corporation PRESIDENT.GLEN ALSWORTH,JR.1(907}781-2218 GALSWORTH@AOL.COM PAIC ADMINISTRATOR.BETH HILL 1{$07}781-3033 BETHASHOW@GMAIL.COM