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Home My WebLink AboutAlaska Power Authority Village System Survey 1-1989 JANUARY, 1989 [Ps fC? Saaqonare” de TAKOTNA 5 ° EAGLE VILLAGE ® e ‘NIKOLAL ARCTIC VILLAGE | ALATNA/ALLAKAKET | e HUGHES, Geauonsix BEAVER eT YUKON STEVENS VILLAGE. CIRCLE e eo BIRCH CREEK INTRA RAMPART ae RUBY. EAGLES TELIDA RSA ENGINEERING, INC. MECHANICAL / ELECTRICAL Se E. 11th — SUITE 210 tue ANCHORAGE, ALASKA) 99501 FAX. 276-1751 (907) 276-0521 - FOREWORD This data base inventory is an initial effort to itemize and inventory rural power systems and their deficiencies. There are many reasons this information is needed such as: 1. Response for emergencies. A. Size generator sets B. Voltage C. Fuel storage D. Spare transformers, etc. 2. To better advise utilities on how to increase efficiencies. 3. To advise utilities how to meter power and fuel. 4, For possible future smaller co-operatives within an area that use similar equipment. Due to limitation on time and funds, this inventory was confined to 18 villages in the Tanana Chiefs Conference Area. An attempt was made to include all utilities on the PCE Program that were in the geographical area. The purpose of this inventory was to: te Identify a small initial group of villages in Interior Alaska that were generally known to Power Authority staff to have electrical generation, distribution system and/or safety code related problems. Due to limits on time and funds, it was not the intent of this inventory to be all inclusive in identifying electrical problems - just the most obvious. Inspect community electrical systems to determine condition of powerhouse, distribution and fuel systems and develop an ipventory of system facilities. i: Prepare a load analysis to determine average peak loads and KWH generated per gallon of fuel consumed (KWH/gallon). Develop a list of deficiencies and cost estimates for correction, including safety and efficiency improvements plus operator mainte- nance training. Analyze potential savings to the State in future PCE payments if the deficiencies are corrected. Determine savings in future fuel costs due to improvements in system efficiencies. Compute simple payback periods to determine if project improvements would result in reduced State PCE payments within a 10 year period. 4798/928(1) ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS COMMUN I TY UTILITY OWNERSHP PROJECT ELEMENTS 1. Allakaket-Alatna Allakaket Energy System Municipal PC, SG, MR, GR, FT, OT, MS 2. Arctic Village Arctic Village Electric IRA Council GR, MR, LB, MS, OT 3. Beaver Beaver Electric IRA Council MR, SG, GR, OT, MS 4, Birch Creek Birch Creek Village IRA Council MR, GR, SC, OT 5. Central Far North Utility Private MS, OT 6. Chalkyitsik Chalkyitsik Systems IRA Council GR, LB, OT 7. Circle City Circle Electric Utility Private GR, MR, LB, MS, OT 8. Eagle Eagle Power Company Private MS 9. Eagle Village Eagle Village IRA Council] LB, GR, SC, MR, MS, OT 10. Fort Yukon Cwitchyaa Zhee Private DU, OT, MS 11. Hughes Hughes Power & Light Municipal PC, LB, MR, GR, MS 12. Nikolai Nikolai Light & Power Municipal MS, MR, FT, PC 13. Rampart Rampart Village IRA Council PC, GR, MR, MS, OT, LB 14, Ruby Ruby Electric Company Municipal MR, GR, FT, MS, OT 15. Stevens Village Stevens Village System IRA Council WH, GR, MR, MS, OT 16. Takotna Takotna Comm. Assoc. IRA Council GR, MS, FT, MR, 17. Telida Telida Village Utility IRA Council MS, PC, MR 18. Venetie Venetie Village Electric IRA Council MR, GR, OT, MS PROJECT ELEMENT CODES dU FT GR LB MR MS oT PC SG WH * TOTALS - Distribution system upgrade. - Fuel tank repairs or diking. - Generator installation, replacement, repair or overhaul. - Load balancing. - Metering installation, relocation, replacement or repair. PROJECT COST*($ 12,600—~ 13,800~ 75,800—~ 44,800 20,600~ 5,900~ 41,500~ 100 29,900~ 46,300~ 47,000~ 15,000~ 96 ,800~ 10,3007 24 ,200~ 13,1007 13,000— 44,200—~ 554,900 FUEL SAVINGS 1ST YEAR SAVINGS ($ 13,700 11,400 13,800 6,400 0 18,100 6,500 0 8,900 0 13,900 0 20,100 3,400 17,400 4,300 12,200 9,700 —_ 159,800 PAYBACK YEARS - Miscellaneous safety improvements (fire extinguishers, lighting, fencing, wiring, grounding and service entrances). - Operator training. - Powerhouse construction or improvements. - Switchgear installation. - Waste heat system repair. Project Costs include 20% contingency. Project is primarily for safety code compliance and hazard reduction, resulting in little or no efficiency improvement. project costs is not applicable. 4797/928/1 SAVINGS ($ PCE SAVINGS 1ST YEAR PAYBACK YEARS 12,800 10,900 7,900 4,400 i cay oon 9,400 3,400 10,400 19,100 2,100 11,100 3,400 6,700 8,000 109,600 Consequently, payback of ALLAKAKET-ALATNA Summary: The existing overhead distribution throughout Allakaket is 480V, 3 phase, 4-wire. The existing generator building is a log structure with concrete floor. Upgrade construction of generator building to provide one hour construction in accordance with NFPA 37 is recommended. There are 2 generators, one is a 100kW and the other is a 50 kW generator. Repair buss power meter and battery charger (for 50 kW generator) to work properly. Install new kWH meter for station service. Install non-combustible insulation and sheet metal on the floor for a minimum of 12 inches around daytank. APA currently has a project funded to supply power to Alatna from Allakaket via a 7,200 Volt line run under the river. The existing overhead distribution throughout Alatna is 120V, single phase, 2-wire. The existing generator building is a log structure, uninsulated with a loose gravel floor. Recommend that a new generator building with one hour construction in accordance with NFPA 37 be built. Repair existing 8.8 kW generator. Install all wires in conduit and intertie to Allakaket powerhouse. ALLAKAKET-ALATNA Allakaket Recommendations: 1. 25 Install a 5 pound fire extinguisher in the powerhouse. Upgrade construction of generator building to provide one-hour construction in accordance with NFPA 37. Buss power meter is not working properly and needs to be repaired. Owner requests the Alaska Power Authority to provide technical assistance on designing and providing power to Alatna’s powerhouse. The battery charger for the 50 kW generator is malfunctioning and needs to be repaired. "Train the operator" on how to use the plant logs to enhance preventative maintenance, tracking parts costs, fuel and oil consumption. . Install a station service kWH meter. Install a dike around the daytank to contain any possible fuel spills. Alatna Recommendations: i. The generator building is a uninsulated log structure, with a loose gravel floor. Recommend that a new generator building be constructed in accordance with NFPA 37. Intertie the village generator to the Allakaket system with a 7,200V, 1 phase line under the river. Upgrade the Alatna system to 7,200V, 1 phase. This project is currently funded by APA and is scheduled to be completed in the summer of 1989. Remove the existing 100A fusible disconnect switch. Install a new 100A double pole double throw transfer switch to accommo- date normal (Allakaket) and standby power (Alatna) power. Install a station service to the generator building. Repair generator’s current hour meter. Overhaul engine and install a new instrument panel with Volt, Amp, kilowatt and hour meter. Install a 5 pound fire extinguisher in the generator building. Install lighting in the generator building. Train the operator on how to isolate Alatna from the Allakaket grid and how to bring the standby generator on line. x VILLAGE: ALLAKAKET UTILITY: CITY OF ALLAKAKET OWNERSHIP: ALLAKAKET CONTACT: STANLEY NID NATE: 11/14/88 PHONE: 968-2241 ol (OUSE INVENTORY GEN1 GEN2 GEN3 ENGINE MAKE............... JOHN DEERE JOHN DEERE ENGINE MODEL........... ... 106414D16202 J9437-2 ENGINE RPM.............04. 1800 1800 YEAR INSTALLED............ 1987 : 1987 LAST MAJOR OVERHAUL (HRS). N/A N/A CURRENT HOURS............. 5698.8 9690 GENERATOR MAKE........... . LIMA LIMA GENERATOR CAPACITY (KW)... 50 100 GENERATOR VOLTAGE...... ... 480V 3PH 480V 3PH PARALLEL SWITCHGEAR?..... . YES YES KWH METER (YES or NO)..... NO NO GEN4 GEN5 GEN6 ENGINE MAKE............... ENGINE MODEL.............. ENGINE RMP............ A633 YEAR INSTALLED............ LAST MAJOR OVERHAUL (HRS). CURRENT HOURS............. GENERATOR MAKE............ GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE......... “ARALLEL SWITCHGEAR?...... 4H METER (YES or NO)..... PO ous POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... 1 OR 2 TIMES DAILY POWERHOUSE CLEANLINESS......... FAIR WASTE HEAT RECOVERY OPERATIONAL?. NO BUSS POWER METER?................ | YES, NOT WORKING PROPERLY INDIVIDUAL GENSET METER?......... | YES POWERHOUSE KWH METER?............ NO WASTE HEAT BTU METER?............ N/A FIRE PROTECTION SYSTEM TYPE...... NO . FIRE PROTECTION OPERATIONAL?..... NO LOAD DATA AVAILABLE? (KW DEMAND). NO POWER HOUS N : 1. G-1 IS ON-LINE, G-2 IS STANDBY, G-1 IS NEW 2. GENERATOR’S ENCLOSURE IS GROUNDED. 3. G-1 490V, 60HZ, 29A, 28A, 32A. PHASING IS OK 4. KWH, GE# 701X15G 95: 07407 DEMAND FACTOR UNKNOWN, NO READING FOR INSTANANEOUS KW METER. 5. MASTER CONTROLLER IS CAPABLE OF PARALLEL OPERATION. 6. POWER HOUSE HAS ONE EMERGENCY LIGHT MOUNTED ABOVE DOOR. 7. BATTERY CHARGER FOR 60KW GENERATOR IS MALFUNCTIONING. POWERHOUSE HAS CONCRETE FLOOR WITH A LOG STRUCTURE. ». KWH METER IS BROKEN, IF G-2 IS ON-LINE IT RUNS FORWARD, IF G-1 IS ONE-LINE IT RUNS BACKWARD. LAGE: ALLAKAKET UTILITY: CITY OF ALLAKAKET OWNERSHIP: ALLAKAKET CONTACT: STANLEY NID DATE: 11/14/88 PHONE: 968-2241 FACILITY INVENTORY METERED? REMETERED YES NO YES NO SINGLE FAMILY............. xX MULTI FAMILY .......esceeee N/A RESIDENTIAL HOUSING...... . xX COMMERCIAL FACILITY....... x COMMUNITY FACILITY........ xX FUEL SYSTEM INVENTORY LEAKS/CORROSION......esecccscccce . DAY TANK CAPACITY........2cee0. eee POWER DISTRIBUTION SYSTEM ~ LTAGE/ PHASES _.STEM: OVERHEAD... ..-ccccccceccee UNDERGROUND........... elelelie COMBINED.... . LAID ON TUNDRA............ CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: a CAPACITY... .cccccccee seeee PAD wcccceccvcecccevcces . POLE ....... eee eccvcee . VOLTAGE IN/OUT.. UNMETERED STREET LIGHTS: QUANITY...ccccccccccee eles GENERAL NOTES: 2 - 10000 GAL. EA WITH FENCE YES W/ LINER NONE APPARENT 18"Dx24"x42"L 5OGAL. NONE APPARENT NO YES YES THROUGHOUT VILLAGE N/A N/A N/A N/A N/A N/A N/A 10 1. STREET LIGHT: 70W HPS - 90W USED. TIME CONTROL 6PM-9AM 2. PLANNING TO INTERTIE ALATNA POWERHOUSE IN 1989. 3. STORAGE TANKS LOCATED APPROX. 300’ AWAY FROM POWERHOUSE. 4. SOME POWER POLES ARE NATIVE SPRUCE. Si. VENT. OPERATORS ARE AS FOLLOWS: ANDY SIMON, BEATTUS MOSES, AND GILBERT = [rrcrcc cect cect crt cre ene ence cee ere ee eee ee cee eee nen eee ene een eee eee nnn e nent erent meee eee e cence ten eee seen ee ee | | wrt ren enn nnn ne en ee ee nnn nn en ne en nnn nn nnn ne ee nn nnn ne ne ee ee ee ee ne eee eee eee eee eee | |rrrnn enone enero eee eene eee won ttn en nner rrr nn nn nn nnn ee ere nn eee ee en en ee nee ne ne enn ne ee ee ee ee eee ee ee eee ee ee eee eee | | [-- | [1 10904 .0 1038.0 14.9 10.5 . scscseces Garces Geese 11373.0 1725.0 15.6 6.6 [2 9997.0 1056.0 13.7 9.5 1275.0 22.9 13.1 7563.0 1785.0 10.4 4.2 13 6774.0 1012.0 9.3 6.7 1190.0 16.9 10.4 15071.0 1806.0 20.6 8.3 [4 11364.0 1223.0 15.6 9.3 1218.0 18.3 10.9 9677.0 1795.0 13.3 5.4 [5 7248.0 1416.0 9.9 5-1 1440.0 21.5 10.9 10381.0 1600.0 14.2 6.5 [6 16699.0 1599.0 22.9 10.4 1488.0 12.7 6.2 15909.0 2112.0 21.8 75 | 7 8257.0 1261.0 11.3 6.5 2236.0 12.4 4.1 14980.0 2112.0 20.5 7.1 | 8 10001.0 1264.0 13.7 7.9 : oO 10952.0 1307.0 15.0 8.4 19 10768.0 1160.0 14.8 9.3 : ——— 13629.0 1936.0 18.7 7.0 |10 7241.0 1284.0 9.9 DO) nie a ree eee eee eee mame te ain | 9462.0 1318.0 13.0 7.2 7512.0 1968.0 10.3 3.8 11933.0 1832.0 16.3 6.5 [12 7936.0 1106.0 10.9 Tae 9739.0 1685.0 13.3 5.8 5000.0 908.0 6.8 5.5 | =saaszzssz: 2 zzz zzz = aezzex | TOTAL 116651.0 14737.0 93700.0 12500.0 | AVERAGE 100 KW 480 VOLT, 3-PHASE, 4-WIRE 50 KW 480 VOLT, 3-PHASE, 4-WIRE |PEAK LOAD (KW) [LOW LOAD (KW) saeseeses=z: [AMPERAGE LOAD RECORDED AT THE TIME OF INSPECTION AS FOLLOWS: 29A, 28A, 32A AT 490V. THIS LOAD IS CALCULATED TO BE 24.6 KW, |BASED ON A 50 KW GENERATOR ON-LINE AND A POWER FACTOR READING OF 55x. as Vw KWH Generatoss. (Thousands) 10 No woe TN ODN DO © OL geaeeeeremmen | Seeing | SI | NT: | a I JULY AUG SEPT OCT NOV DEC JAN FEB MAR APR MAY = JUNE ALLAKAKET ENERGY SYSTEMS ) FY ‘86 t FY °87 ° FY ‘88 Allakaket Cost Estimate: i Ex ALLAKAKET -ALATNA Install a 5 pound fire extinguisher. Upgrade powerhouse building to one-hour construction. Repair buss kWH meter. Labor (4 hours @ $25/hour) $100 Materials (allow $200) 200 Repair battery charger. Labor (4 hours @ $25/hour) $100 Materials (allow $200) 200 Train the operator. Labor (8 hours @ $25/hour) Install a kWH meter for station service. Labor (10 hours @ $25/hour) $250 Materials (allow $150) 150 Install a dike around the daytank. Labor (4 hours @ $25/hour) $100 Materials (allow $1,500) 1500 ALLAKAKET SUBTOTAL w Oo oO oO 300 300 900 - 1600 59,900 Alatna Cost Estimate: Remodel generator building to bring it up to one-hour construction in accordance with NFPA 37. The following is funded and will be done under a jobs bill appropriation, estimated to start this summer; therefore, no cost is estimate is provided: Intertie to Allakaket powerhouse. Remove 100A disconnect switch, conductors. Install new 100A manual transfer switch, connect to generator and add a new service entrance and kWH meter. Install a small instrument panel with a kW, Amp, Volt, frequency and hour meter. Overhaul engine. Install a 5 pound fire extinguisher Install incandescent lights Labor (4 hours @ $25/hour) $100 Materials (allow $100) 100 Train the operator (8 hours @ $25/hour) ALATNA SUBTOTAL ALLAKAKET SUBTOTAL Travel and Per Diem Costs APA Administrative Costs ALLAKAKET-ALATNA PROJECT SUBTOTAL Contingency (20%) TOTAL ALLAKAKET-ALATNA COST ESTIMATE w - re ct oO 100 200 200 —/ $2,000 5,900 1,500 1,100 $10,500 2,100 $12,600 ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTILITY: Allakaket Energy System COMMUNITY: Allakaket-Alatna INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 vl PROJECT COST $ 12,600 “ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 GENERATION EFFICIENCY (KWH Sold/Gal ) Real Fuel Escalation Rate (%/Year Base Case“ 5.8) 1989-1998 LI) After Project 10.0 1999-2008 0.0 LINE LOSSES(%) 5 BASE YEAR ENERGY SALES? (KWH) Base Case 16 PCE Eligible 121,889 After Project 10 Not Eligible 1,482 TOTAL BIZ3RS/1 ANNUAL GROWTH? (%) CURRENT PCE pATA2 1989-2008 0 Rate (¢/KWH) 37.91 Fuel Price ($/Gal) 1.53 Other Utility Costs ($/Yr) 27,300 OUTPUT SUMMARY Simple Payback (Years) FUEL PCE SAVINGS SAVINGS 1 1 Cumulative Net Savings (Nominal $ Project Year FUEL PCE 1 13,700 12,800 1-5 70,500 66,200 1-10 146 ,400 137,300 1-20 302 ,900 282 ,800 The project cost includes $5,850 for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 11.5% over the past three years. Any future load growth would improve the economics of the project and reduce the number of years for payback. 4796/833/3 Alaska Power Authority Vansenuns 1900 Interior view of power- house showing exposed wiring. Fused disconnect will be removed, rewired, and replaced with a new transfer swith. Alatna Generator building is a log structure with uninsulated ceiling and loose gravel floor. Fire hazard. Build- ing will be modified to stand-by configuration. 8 kw Lister generator set is in need of major overhaul. Alatna Powerhouse 480V, 3 phase overhead distribution system through out the village. Tank farm Alatna Interior of Power house. Unit #1 - S0kW Emergency lighting. Alatna Day tank Outboard motor - gasoline in the power house "fire hazard". Engine Panels - main power house. Meter is in place, but not operating correctly. ARCTIC VILLAGE Summary The existing overhead distribution is 12.47/7.2 kV, 3 4-wire. The substation consists of 3 - 25 kVA, 12.47/ 208/120V, 3 phase, 4-wire distribution transformers. i generator building is wooden structure, insulated with a con floor. Existing generator building is in fair condition. There are 3 generators. One is a 50 kW. The other two are 90 kW. One 90 kW Cat generator is not operating. Existing 90 kW and 50 kW John Deere generators need to be repaired since both are using too much oil. Need to install anew current hour meter for the 90 kW generator. APA should provide technical assistance to rebalance village loads. s c ARCTIC VILLAGE Recommendations: is Equipment coverplates to be installed. 25 Remove the nonfunctional 90 kW Cat generator and controller. 3. Repair and reinstall day tank meter. 4, Rebalance the village loads. Di Inspect and repair the 90 kW and 50 kW John Deere generators as they appear to have excessive oil consumption. 6. Install a new hour meter for the 90 kW John Deere generator. lee Provide a 5 pound fire extinguisher. 8. Install an hour meter on 50 kW John Deere generator. 9. "Train the operator" on how to most efficiently operate the power plant and in the use of plant logs to enhance preven- tative maintenance, tracking parts costs, and fuel and oil consumption. VILLAGE: ARCTIC VILLAGE UTILITY: ARCTIC VILLAGE ELEC. OWNERSHIP: ARCTIC VILLAGE CONTACT: LINCOLN TRITT “ATE: 11/09/88 PHONE: 587-5226 (HM) POWERHOUSE INVENTORY GEN1 GEN2 GEN3 ENGINE MAKE............... JOHN DEERE JOHN DEERE CAT ENGINE MODEL.............. J7037/1 BA23653EC 444-5N15 ENGINE RPM................ 1800 1800 1800 YEAR INSTALLED............ - . = = LAST MAJOR OVERHAUL (HRS). NO No NO CURRENT HOURS............. 91189.1 No No GENERATOR MAKE............ NEWAGE STAMFORD NEWAGE STAMFORD CAT GENERATOR CAPACITY (KW)... 90 50 90 GENERATOR VOLTAGE......... 120/208V 120/208V 120/208V PARALLEL SWITCHGEAR?...... NO NO NO KWH METER (YES or NO)..... NO No NO GEN4 GEN5 GEN6 ENGINE MAKE............... ENGINE MODEL.............. ENGINE RMP.............00- YEAR INSTALLED............ LAST MAJOR OVERHAUL (HRS). ' CURRENT HOURS............. GENERATOR MAKE............ GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE......... \RALLEL SWITCHGEAR?...... ..4H METER (YES or NO)..... POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... 3 TIMES DAILY POWERHOUSE CLEANLINESS........... FAIR WASTE HEAT RECOVERY OPERATIONAL?. N/A BUSS POWER METER?..... OE aI TIES INDIVIDUAL GENSET METER?......... YES AMP/VOLT/FREQUENCY METER POWERHOUSE KWH METER?............ YES WASTE HEAT BTU METER?...........- N/A FIRE PROTECTION SYSTEM TYPE...... N/A _ FIRE PROTECTION OPERATIONAL?..... N/A , LOAD DATA AVAILABLE? (KW DEMAND). 5135 X DEMAND FACTOR UNKNOWN POWER HOUSE GENERAL NOTES: 1. G-1 IS ON-LINE, USES A LOT OF OIL - 1-1/2 QUARTS/DAY. DATA READINGS: 210V (LINE-LINE) 90A, 140A, 80A, 59.5 HZ 2. G-3 IS PRESENTLY NOT WORKING (CRACKED BLOCK) LEAKING ANTI-FREEZE INTO OIL PAN. 3. FRANK FRANCIS (OPERATOR) THINKS THE CURRENT HOUR METER ON G-1 IS INOPERATIVE. 4. G-2 IS STAND-BY, USES 1 QUART OF OIL EVERY 2 DAYS. 5. DEMAND LOAD CALCULATED: (1.73) (208) (103.3)=37.2KW LLLAGE: ARCTIC VILLAGE UTILITY: ARCTIC VIL. ELECTRIC OWNERSHIP: ARCTIC VILLAGE CONTACT: LINCOLN TRITT DATE: 11/09/88 PHONE: 587-5226 (HM) FACILITY INVENTORY METERED? REMETERED YES No YES No SINGLE FAMILY............. X MULTI FAMILY ..........+... N RESIDENTIAL HOUSING....... xX xX xX COMMERCIAL FACILITY....... COMMUNITY FACILITY........ FUEL SYSTEM INVENTORY BULK STORAGE CAPACITY...... eeccces DIKED CONTAINMENT?.......cececceee LEAKS/CORROSION..... 2... sees eeeeeee DAY TANK CAPACITY. .........--e+e00- DAY TANK DIKE...... eee er ccccccccs LEAKS/CORROSION......-seeeeeeeees . PO! DISTR ION SYS “"OLTAGE/ PHASES {STEM: LAID ON TUNDRA............ CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: POLE VOLTAGE IN/OUT...........-- UNMETERED STREET LIGHTS: QUANITY..... cece cence eoese GE: N Ss 1. THREE STORAGE TANKS (OUTSIDE) BUT ONLY ONE IS USED. A.F.G. FOLDED TOGETHER AND ARE APPROX. 18" YES. 3-6000 GALLON EACH NO. SET ON PILES & PLATFORM NONE APPARENT YES. 120 GALLON NO OIL METER IS CURRENTLY BEING REPAIRED 12470/7200V, N/A N/A N/A 3PH, 4W 3-25 KVA, N/A YES 208/7200V, 12,470/7200V, 3PH, 4W 3PH, 4W N/A THEY ARE MANI- STORAGE TANK HAS ITS OWN METER AND CONNECTS TO DAY TANK’S METER (INSIDE POWERHOUSE) 2. POWERHOUSE OPERATOR IS FRANK FRANCIS (587-5312). | LOAD ANAYLYSIS = - ARCTIC VILLAGE ELECTRIC UTILITY DATE: 11/09/88 | hl aieetnnieal ienenneal iemnnimmmnen 10840.0 1404.0 14.8 vr 15.0 7.3 [200 wee eeeeeee eee eeeee eee eee -- 12280.0 1503.0 16.8 | oe [300 weeeeeeeee ceeeeeeee eeeeee -- 18960.0 1703.0) 26.0) 14.1 ene n nee ee neeeeeeee ee eee ---2-- | -- 19120.0 2544.0 26.2 A ee [5 ree eeeeeee ceeeeeeee eee eee -- 23480.0 2462.0 32.2 9S reeeeen ene ceceeeree ceeeee eee eee [6 ween eee eee ce eeeeeee ceeeee coon eens 34280.0 3496.0 47.0 9B ween nnn n nee eeeeee eee ee cree ee | 7 8236.0 2.6 rn nee n nnn wee e eee ne cece ee cece cece cece cee e eee cee eee eee ee [8 12450.0 9 --------- A710 =e ------- — 20800.0, 4425.0 28.5 GT wnnnn een ne wenn neers eee eee _—— 19 23320.0 9.6 = 19080.0 2203.0, 26.10 B72 wenn ene e ween eee neers eee |10 23160.0 9.3 ju 16880.0 7.8 - [12 10120.0 6.7 - | sessesess= sessesse= 0 sesesscsss | TOTAL 94166.0 180760.0 22283.0 | AVERAGE 3.0 1.2 0.6 een ce a ee mt | |GENERATOR SETS INSTALLED 90 KW 120/208 VOLT, 3-PHASE, 4-WIRE | 50 KW 120/208 VOLT, 3-PHASE, 4-WIRE | 90 KW 120/208 VOLT, 3-PHASE, 4-WIRE | | ecw ce ce cece ence www www wwe www w ewww nnn eww ewww eee ces eee cen enc ce een ee ee we ween een nee eens e een nnn neee | YEAR FY 86 FY 87 FY 88 Y | we ee ee en ee en ee ee en nnn nnn ne enn eee en enn ee ee ee ee ee eee ee eee ne nn en ene ee eee ene ne ee |PEAK LOAD (KW) 31.9 47.0 15.0 |LOW LOAD (KW) 11.3 14.8 15.0 |AMPERAGE LOAD RECORDED AT THE TIME OF INSPECTION AS FOLLOWS: 90A, 140A, BOA. THE CALCULATED DEMAND LOAD IS 37.2KW BASED ON THE |9OKW JOHN DEERE GENERATOR THAT WAS ON-LINE. ACCORDING TO THE AMPERAGES INDICATED, A SEVERE LOAD IMBALANCE OF ABOUT 43% EXISTS ON |THE 120/208 VOLT, 3-PHASE GENERATION PLANT. KWH Generated (Thousands) 35 Ha 30 25 YA 20 J 1S - 10 - 5 bs oO --= ~ —- ete aie rita ~- -- ma - ao 4 JULY AUG SEPT OCT NOV DEC JAN. FEB MAR APR_ MAY ARCTIC VILLAGE 4 FY ‘86 1 FY °87 o ‘FY ‘88 =D aap o=2> =2?> JUNE ARCTIC VILLAGE Cost Estimate: . ie Install equipment coverplates as operator's duty. $0 Drs Remove existing 90 kW Cat generators, controller, conduit, wires, etc. This is a maintenance item and, therefore, no cost estimate is provided. 0 aa Repair and reinstall day tank meter as operator's duty. 0 4. Rebalance village loads. (24 hours @ $25/hour) 600@ Le Overhaul 90 kW and 50 kW John Deere generators (contract): Materials (allow $3,500) $3,500 Labor (100 hours @ $25/hour) 2,500 Per Diem (12 days @ $150/day) 1,800 7,800@ 6. Remove and install a new hour meter for 90 kW John Deere engine. 150 ® Ts Provide a 5 pound fire extinguisher. 100 © 85 Install a new hour meter for a 50 kW John Deere engine. 1500 97 Train operators. (8 hours @$25/hour) 200 O 10. Travel and Per Diem Costs. 1,400\/ > @08 11. APA Administrative Costs 1,100, SUBTOTAL $11,500 Contingency (20%) 2,300—-6 © TOTAL COST ESTIMATE $13,800 0° O “ 40° @ D (oe \Ue~. ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTILITY: Arctic Village Electric COMMUNITY: Arctic Village INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 l PROJECT COST $ _13,800 Real Discount Rate (%) 4.5 GENERATION EFFICIENCY (KWH Sold/Gal ) Real Fuel Escalation Rate (%/Year) Base Case 15 1989-1998 1.5 After Project 10.0 1999-2008 0.0 LINE LOSSES(%), BASE YEAR ENERGY SAL< ~ (KWH) Base Case 23 PCE Eligible 196,249 After Project 10 Not Eligible 0 TOTAL 196,249 ANNUAL GROWTH? (%) CURRENT PCE DATAZ 1989-2008 0 Rate (¢/KWH) PS. a0 Fuel Price ($/Gal) tal Other Utility Costs ($/Yr) OUTPUT SUMMARY Simple Payback (Years) FUEL PCE SAVINGS SAVINGS 2 2 Cumulative Net Savings (Nominal $) Project Year FUEL 1 11,400 1-5 58,900 1-10 122,300 1-20 253,000 ECONOMIC PARAMETERS PCE 10,900 55,900 116,200 240 ,300 The project cost includes $600 for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. Any future load : Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 3% over the past three years. growth would improve the economics of the project and reduce the number of years for payback. 4796/833/4 Alaska Power Authority January 1989 Arctic Village 12.47kV, 3 phase,4w over- head distribution. Pole & transformer are in excellent condition. Powerhouse Powerhouse kwh meters. Panel cover missing. Arctic Village 90kW Caterpillar generator 50 kW John Deere generator. BEAVER Summary: The existing overhead distribution is 12.47/7.2 kv, 3-phase 4-wire. The substation consists of 3 - 50 kVA - 12.47/7.2kV - 208/120V, 3 phase, 4-wire distribution transformers which are mounted on H-platform. The existing generator building is wooden structure, insulated and in fair condition. There are 2 genera- tors, one is a125 kW generator, and the other is a 50 kW. We recommend to trade-in the 125 the kW generator for a 50 kW genera- tor to better match the load and increase fuel efficiency. Replace the existing manual transfer switch with a new manual paralleling switchgear. Also, replace the existing governor and voltage regulator of existing the 50 kW generator with new elec- tronic unit. BEAVER Recommendations: i The existing fuel meter is presently located behind the day tank. Relocate it to an accessible location. 2 Install a totalizing kWH meter to measure consumption of the power plant. 35 At the present time, all switching is done manually using double pole, double throw transfer switches. Purchase and install manual paralleling switchgear in the powerhouse. The existing generator sets should have their governors and voltage regulators replaced with new electronic units to allow better tracking of the load. con 4. Bury the exterior bare copper ground conductor a minimum of 18" below grade. Zz. Recommission the 50 kW generator set to better match the loads and increase fuel efficiency. Remove the 125 kW generator unit. 5 "Train the operator" on how to most efficiently operate the power plant and in the use of plant logs to enhance preventa- tive maintenance, tracking parts costs, and fuel and oil consumption. VILLAGE: BEAVER OWNERSHIP: BEAVER "ATE: 10/25/88 POWERHOUSE INVENTORY CURRENT HOURS...........0. GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE....... re PARALLEL SWITCHGEAR?...... KWH METER (YES or NO) YEAR INSTALLED............ LAST MAJOR OVERHAUL (HRS). CURRENT HOURS...........-- GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE......... \RALLEL SWITCHGEAR?.. ..4H METER (YES or NO) POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ATTENDED HOURS/DAYS... POWERHOUSE POWERHOUSE WASTE HEAT BUSS POWER CLEANLINESS.. POWERHOUSE WASTE HEAT LOAD DATA AVAILABLE? (KW DEMAND). POWER HOUSE 1. G-1 WAS STAND-BY N : 2. G-2 WAS OPERATING @ 500V, DATA READING: CURRENT: A=45A, B=55A, C=40A AVERAGE CURRENT BC=493, 58 HZ VOLTAGE: AB=486.5, LINE-LINE FREQENCY = TOTAL LOAD SQR 3 (480V) RECOVERY OPERATIONAL?. UTILITY: CONTACT: PHONE: GEN1 JOHN DEERE NL4276T150N 1800 85 NO 16934.5 NORTHERN LIGHTS 50 480V, NO No 3PH GEN4 MINIMAL, FAIR N/A NO eS s0 YES NO YES 55A, 57HZ AC=488 (46.6) (1.0) BEAVER ELECTRIC STEVE JOSEPH GEN2 JOHN DEERE NL6466A/12TN 1800 85 NO 15321.1 NORTHERN LIGHTS 125 480V, NO NO GEN3 3PH GEN5 GEN6 1-2 TIMES DAILY YES, AMP/VOLT/FREQ METER FIRE ALARM W/ DETECTION PROTRONIC 46.6 AMP . = 38.8 KW 4. POWERHOUSE KWH METER (EXTERIOR) 17215 KWH ILLAGE: OWNERSHIP: DATE: BEAVER BEAVER 10/25/88 PHONE: FACILITY INVENTORY YES SINGLE FAMILY............. MULTI FAMILY RESIDENTIAL HOUSING...... . COMMERCIAL FACILITY....... COMMUNITY FACILITY........ FUEL SYSTEM INVENTORY BULK STORAGE CAPACITY...........4. mM OM LEAKS/CORROSION........-.-eeeeeeees DAY TANK CAPACITY.......cccceecces POWER DISTRIBUTION SYSTEM “"OLTAGE/ PHASES _{STEM: OVERHEAD........-.26. eeeee UNDERGROUND. ..........-6-- LAID ON TUNDRA...... eeeeee CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: POLE oe VOLTAGE IN/OUT............ UNMETERED STREET LIGHTS: QUANITY......... eoee G Ni Si 1. NO PLANT LOGS AVAILABE UTILITY: CONTACT: METERED? BEAVER ELECTRIC STEVE JOSEPH No ES NO 3-10,000 GAL EACH YES NONE APPARENT 44.5" DIA. x 72" YES TANK HAS MINOR LEAKS YES 48 GAL. TOKHEIM 12470V, N/A N/A N/A 3PH, 4W 3 EACH 50KVA,12.47KV,480V,3PH, 4W N/A ON H-PLATFORM 480/7200 N/A | LOAD ANAYLYSIS - BEAVER ELECTRIC DATE: 10/25/88 | KWH GAL AVG KWH/ KWH GAL = AVG KWH/ KWH GAL = AVG KWH/ | FY 86 FUEL LOAD GAL FY 87 FUEL LOAD GAL FY 88 FUEL LOAD GAL [rove ncn ee ence eee ene ce eee nce nent e een tener n eee n teen ene e eee ne een n een e een wen eee e ene ncee ence n een ennen eee ecnee ence | (lev 4304.0 1852.0 5.9 2.3 5985.0 1375.0 [2 7123.0 1851.0 14.1 3.8 11125.0 1823.0 |3 10312.0 2150.0 14.1 4.8 10122.0 2438.0 | 4 12803.0 2645.0 17.5 4.8 10074.0 2550.0 [5 18919.0 3500.0 25.9 5.4 21348.0 2878.0 [6 20775.0 3860.0 28.5 5.4 23579.0 3232.0 [7 21294.0 4400.0 29.2 4.8 | 8 16569.0 3423.0 22.7 4.8 |9 18846.0 3894.0 25.8 4.8 |10 18416.0 3805.0 25.2 BB ne eee eee cee ee - {1 9766.0 2018.0 13.4 8B ne nee tees - |12 15069.0 3119.0 20.6 8B eee cette tect e c eters | == S20 sasssss= ssssss = sssss 0 sssss= [TOTAL 174196.0 36517.0 82233.0 14296.0 | AVERAGE 20.2 4.6 18.8 55 | wn nn nn oe nn nn nn nn nn cn eee ene ee cee nn eee ee een en ee eee eee ecw ects cece eee e eee e eee n nnn e eens |GENERATR SETS INSTALLED 50 KW 480 VOLT, 3-PHASE, 4-WIRE | 125 KW 480 VOLT, 3-PHASE, 4-WIRE | | ee eee ee ee ee | YEAR FY 86 FY 87 FY 88 j = LOAD (KW) 29.2 32.3 [LOW LOAD (KW) |CURRENT LOADS RECORDED AT THE TIME OF INSPECTION WERE 45 AMP, 55 AMP AND 40 AMP. THIS LOADING IS CALCULATED 38.8 KW |BASED ON A 125 KW GENERATOR THAT WAS ON-LINE. KWH GENERATED (Thousands) 24 - 225 18 16 14 12 10 yn : ra Er ye a C ' - | mle — Tt. a i a an JULY AUG SEPT OCT NOV DEC JAN FEB MAR BEAVER VILLAGE oO FY ‘86 + FY °88 ————+ APR MAY JUNE Cost Estimate: ke BEAVER Relocate fuel meter. Materials Labor (8 hours @ $25/hour) Install new totalizing kWH meter. Alaska Power Authority will install and maintain this meter with separate funds; therefore, no cost estimate is provided. New manual paralleling switchgear. $15,000 Freight 1,000 Labor (1 week, 8 hours/day, -_ 2 men @ $25/hour) 2,800 Misc. cable fittings, connectors, etc. 500 Modify generator set. Labor (24 hours @ $25/hour) 600 Bury ground conductor as operator’s duty. Specify and install a new 50 kW generator unit. $25,000 Labor (80 manhours @$25/hour) 2,000 Remove existing 125 kW generator unit. Labor (24 hours @ $25/hour) 600 Train operators (8 hours @ $25/hour). Enigneering Costs (80 hours @ $32.50/hour). Travel and Per Diem Costs APA Administrative Costs SUBTOTAL Contingency (20%) TOTAL COST ESTIMATE 19,900 ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTILITY: Beaver Electric COMMUNITY _ Beaver INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 . PROJECT cost! $ 75,800 ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 GENERATION EFFSCIENCY (KWH Sold/Gal ) Real Fuel Escalation Rate (%/Year) Base Case 5.4 1989-1998 1.5 After Project 10.0 1999-2008 0.0 LINE LOSSES(%). BASE YEAR ENERGY SALES“ (KWH) Base Case 10 PCE Eligible 92,296 After Project 10 Not Eligible 61,540 TOTAL 153 ,836 ANNUAL GROWTH? (%) CURRENT PCE DATA2 - 1989-2008 0 Rate (¢/KWH) 33.93 Fuel Price ($/Gal) 1.03 Simple Payback (Years) FUEL SAVINGS 6 Cumulative Net Savings Project Year d, 1-5 1-10 1-20 Other Utility Costs ($/Yr) 38,570 OUTPUT SUMMARY Nominal $ PCE SAVINGS 10 FUEL PCE 13,800 7,900 71,200 40,600 147 ,800 84 ,200 305,700 174,300 The project cost includes $10,350 for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 3% over the past three years. Any future load growth would improve the economics of the project and reduce the number of years for payback. 4796/833/5 Alaska Power Authority January 1989 Powerhouse and step-up transformer bank. Existing ground system needs to be buried Fuel tank farm manifold. Note 5 gallon cans used for oil drip collection. Beaver : Bulk storage tanks and %- dike. 125 kW John Deere gener- ator 50 kW John Deere generator. Beaver Generator panel (unit mounted) 50 kW generator. Remote mounted control panel for 125 kW generator Fire alarm control panel. Beaver Main line 3 phase 12.47kV 4W. Over- head line in excellent condition. Typical step-down transformer bank, school service. BIRCH CREEK Summary: The existing overhead distribution is 120/208V, 3-phase, 4-wire through entire village. New overhead distribution is 7.2 kV, l-phase, 2-wire and was being installed during the inspection. 120/208V, 3-phase, 4-wire system is to be retired. Existing generator building is in fair condition and is equipped with a Halon fire protection system. There are 2 - 50 kW generators. We recommend trading in one 50 kW for a 20 kW generator to better match the load and increase fuel efficiency. Retain one 50 kW gen- erator unit as a stand-by unit. BIRCH CREEK Recommendations: Le The existing fuel meter is a gravity type which should be relocated outside the building between the main storage tank and the outside tank. Recommission the 20 kW generator set and remove one existing 50 kW generator to better match the load and increase fuel efficiency. Retain one existing 50 kW generator unit as a "standby" unit. "Train the operator" on how to most efficiently operate the power plant and in the use of plant logs to enhance preventa- tive maintenance, tracking parts costs, and fuel and oil consumption. ~ VILLAGE: BIRCH CREEK UPI LITy: BIRCH CREEK VILLAGE OWNERSHIP: BIRCH CK. VILLAGE CONTACT: RONALD BALLEAULM “ATE: 10/25/88 PHONE: POWERHOUSE INVENTORY GEN1 GEN2 GEN3 ENGINE MAKE............... CUMMINS CUMMINS ENGINE MODEL.............. 50DG1803/4BT 50DG1803 ENGINE RPM..............0. 1800 1800 YEAR INSTALLED............ = é = LAST MAJOR OVERHAUL (HRS) . No NO CURRENT HOURS........ seeee 5936.2 4613.3 GENERATOR MAKE....... .. STAMFORT STAMFORT GENERATOR CAPACITY (KW)... 50 50 GENERATOR VOLTAGE......... 120/208 120/208 PARALLEL SWITCHGEAR?...... NO No KWH METER (YES or NO)..... NO NO GEN4 GEN5 GEN6 YEAR INSTALLED............ LAST MAJOR OVERHAUL (HRS). CURRENT HOURS............4- GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE......... POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... 1-2 TIMES DAILY POWERHOUSE CLEANLINESS........... SATISFACTORY WASTE HEAT RECOVERY OPERATIONAL?. NO - PHS NEEDS REPAIR BUSS POWER METER?....... ec ecceee YES INDIVIDUAL GENSET METER? . eee erccee YES VOLT/AMP/FREQ METER POWERHOUSE KWH METER?.........--- NO WASTE HEAT BTU METER?..... ee eeee NO FIRE PROTECTION SYSTEM TYPE eeeeee HALON W/ HANDHELDS FIRE PROTECTION OPERATIONAL?..... YES LOAD DATA AVAILABLE? (KW DEMAND). YES - 2 MONTHS POWER HOUSE G Ni : 1. G-2 WAS STAND-BY. 2. DATA READING: AMMETER: A=65A, B=75A, C=55A, N=20A . VOLTAGE: AB=200V, BC=180V, AC=200V, AN= 114.4V, BN=115V, CN=117V FREQUENCY: 54HZ TOTAL LOAD (1.0) (65A+75A+55A) (120V)+23.4 KW GENERATOR RUNNING AT APPROX. 47% LOAD. BUSS POWER METER 34557 KWH POWERHOUSE HAS CONCRETE FLOOR EMERGENCY LIGHTING W/ BATTERY PACKS Pw: ILLAGE: BIRCH CK UTILITY: BIRCK CREEK UTILITY OWNERSHIP: BIRCH CREEK VIL. CONTACT: RONALD BALLEAULM DATE: 10/25/88 PHONE: FACILITY INVENTORY METERED? REMETERED YES No YES NO SINGLE FAMILY............. x MULTI FAMILY ............. x RESIDENTIAL HOUSING....... X COMMERCIAL FACILITY...... nx COMMUNITY FACILITY...... ax FUEL SYSTEM INVENTORY BULK STORAGE CAPACITY............. 8,000 GAL. BY PUMP HOUSE DIKED CONTAINMENT?...........20005 NO LEAKS/CORROSION..........seeeeeeee NONE APPARENT DAY TANK CAPACITY............00005 36Wx24Dx7'H ~ DAY TANK DIKE..... ae HMRIE Ss sisi © ssiels No LEAKS/CORROSION.........-eeeeeeeee NONE APPARETN DAY TANK METERED?..............4-- YES 46.8 GAL. PO DIS ION SYST “'OLTAGE/ PHASES YSTEM: OVERHEAD..... seeeeceeeeees 120/208V, 3PH, 4W UNDERGROUND..........20005 N/A COMBINED.............. wees N/A LAID ON TUNDRA......... we. N/A CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: CAPACITY. ....0 0. 00cccccccns NEW 37.5 KW 7200V, 1PH, 2W PAD een eerie ne N/A POLE oc concen eoenecene x VOLTAGE IN/OUT............ 7200V, 1PH/120/208V, 3PH UNMETERED STREET LIGHTS: QUANITY.........ceeeeeeee N/A GENERAL NOTES: 1. EXIST. 120/208V, 3PH, 4W OVERHEAD DIST. TO BE RETIRED. NEW 7200V, 1PH, 2W TO BE REPLACED. USE 3KVA, 120/208V 1PH, 3W 120/240V, 1PH, 2. FUEL IS FLOWN IN AT 20GAL. 3. 8,000 GAL. NOT CONECTED. 3W TO EACH CUSTOMER. PER FLIGHT VILLAGE TANK TO GENERATOR PLANT ON PILES, 4. GRAVITY METER AT DAYTANK SHOULD BE RELOCATED. 5420.0 710.0 8591.0 1006.0 11872.0 1298.0 12958.0 1350.0 13211.0 1226.0 14106.0 1390.0 15138.0 1892.0 20.7 8.0 11580.0 1193.0 6129.0 1371.0 8.4 4.5 11551.0 1444.0 15.8 8.0 13988 .0 1436.0 10834 .0 2423.0 14.8 4.5 11821.0 1478.0 16.2 8.0 11054.0 1310.0 |10 7620.0 953.0 10.4 8.0 7611.0 995.0 {1 soe 7155.0 [12 6502.0 1454.0 8.9 4.5 | Sssssssss sssssss= sass= =sssass=00 sasees=2= sesssss= [TOTAL = 23465.0 = 5248.0 90075 .0 12918.0 [AVERAGE 227, 1.1 13.4 8.2 | wan nnn ee nn nn nn nn nn nn ne ne nn nn nn nnn nn nn nnn nn nn nn nn nn en nnn nn nn nn nn nn nn enn nnn nn nnn nn ne nn nn nee ne nner eee |GENERATOR SETS INSTALLED 50 KW 120/208 VOLT, 3-PHASE 4-WIRE | 50 KW 120/208 VOLT, 3-PHASE 4-WIRE | | wa nee ne ne nn nn nn ee ne en en nen nn nn nn ene nn en nn nnn nn ne nnn ee nn nn nt nnn nnn nn ene ne en nn nn nn eee eee eee e ee [YEAR FY 86 FY 87 FY 88 ' | ann ne ne ne nn nn nn nnn nn ne nn nn nn nn nn nn nn nn nn nnn nn nn nnn enn nnn rene teen nnn nnn ne nee eee eee e eee |PEAK LOAD (KW) 14.8 20.7 19.3 |LOW LOAD (KW) 8.4 10.4 7.4 | =ssssssassasascessesssssssssssssssssssssssssssssssassesssssssssssssssssssssses555 [LOADS RECORDED AT TIME OF INSPECTION WERE 65 AMP, 75 AMP, 55 AMP, AND 20 AMP (NEUTRAL). THIS LOAD IS IMBALANCED. |THE OVERHEAD DISTRIBUTION IS CURRENTLY 120/208V, 3-PHASE, 4-WIRE THROUGHOUT THE VILLAGE. THE OLD OVERHEAD DISTRIBUTION [1S TO BE RETIRED. NEW 7200V 1-PHASE, 2-WIRE (GROUNDED) TO REPLACE OLD SYSTEM. LOADS NEED TO BE REBALANCED. KWH Generated (Thousands) tht JUL pes AUG — SEPT FY “86 - 4 —_ OcT i {4h NOV DEC JAN BIRCH CREEK VILLAGE { FY °87 i FEB I MAR APR FY °88 MAY JUNE. BIRCH CREEK Cost Estimate: ilies Relocate fuel meter. Labor (12 hours @ $25/hour) $300 25 Specify and install new switchgear and recommission 20 kW generator unit. Materials (allow $25,000) $25,000 Labor (80 manhours @ $25/hour) 2,000 Remove existing 50 kW generator unit: Labor (24 hours @ $25/hour) 600 27,600 oF Train operators. — (8 hours @ $25/hour) 200 4. Engineering Costs (40 hours @ $32.50/hour). 1,300 Sls Travel and Per Diem Costs. 3,300 6. APA Administrative Costs 4,600 SUBTOTAL $37,300 Contingency (20%) 7,500 TOTAL COST ESTIMATE $44, 800 ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTILITY: _ Birch Creek Village COMMUNITY Birch Creek INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 PROJECT cost? $ 44,800 ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 GENERATION EFFSCIENCY (KWH Sold/Gal) Real Fuel Escalation Rate (%/Year) Base Case 6.8 1989-1998 Lo After Project 10.0 1999-2008 0.0 LINE LOSSES(%), BASE YEAR ENERGY SALES“ (KWH) Base Case 15 PCE Eligible 71,368 After Project 10 Not Eligible 27,514 TOTAL 98 ,882 ANNUAL GROWTH? (‘%) CURRENT PCE DATAS = 1989-2008 0 Rate (¢/KWH) 30.18 Fuel Price ($/Gal) 1.39 Other Utility Costs ($/Yr) 19,799 QUTPUT SUMMARY Simple Payback (Years) FUEL PCE SAVINGS SAVINGS 7 10 Cumulative Net Savings (Nominal $ Project Year FUEL RCE: di 6 ,400 4,400 1-5 33,100 22,700 1-10 68 ,700 47,100 1-20 142 ,000 97,400 The project cost includes $200 for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. : Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 3% over the past three years. Any future load growth would improve the economics of the project and reduce the number of years for payback. 4796/833/6 Alaska Power Authority January 1989 Birch Creek Powerhouse constructed with water treatment facility, uses waste heat for domestic water. New 7200v, 1 phase, 2-w grounded overhead dis- tribution system 8- bulk storage tanks Birch Creek Example of bad wiring in the village. Note new lines in the background - work in progress at time of inspection. Bus power meter & 2- 200 Amp breakers for gener- ator sets. Day tank and gravity fuel meter. Meter installed in wrong location - will be replumbed to fill side of daytank. Birch Creek 50 kw Cummins generator with unit mounted control panels. Very clean and neat. New 7200v, 1 phase, 2W grounded overhead dis- tribution system. Old 208v system. CENTRAL Summary: The existing overhead distribution is 4.16/2.4 kV, 3-phase, 4-wire. The substation consists of 3 - 50 kVA - 4.16/2.4 kV - 480/277V, 3-phase, 4-wire distribution transformers set on grade. The existing generator building is in fair condition. There are 2 generators. One is a 100 kW, and the other is a 200 kW generator. The ground grid system is to be thoroughly inspected and bonded as required by NEC. Provide a new 8 foot chain link security fence around the transformers. CENTRAL Recommendations: 1. Cleaning staff needs to be instructed on plant safety, and cautioned about exposed wiring, equipment ground and ground grid system. Equipment coverplates need to be installed. Install all wiring in conduit. Ground grid system to be thoroughly inspected and bonded. Reroute conduit underneath wooden platform to main distribu- tion panel's buses. Install coverplate to project personnel from energized buswork. ~ Generator sets shall have their governors and voltage regula- tors replaced with 2301A electronic governors if new automatic control switchgear is installed. Provide an 8 foot chain link fence with padlocked gate around the existing 3-50 kVA distribution transformers. "Train the operator" on how to most efficiently operate the power plant and in the use of plant logs to enhance preventa- tive maintenance, tracking parts costs, fuel and oil consump- tion. Provide a 10 pound fire extinguisher in the powerhouse. CENTRAL POWER CO. GEN2 CAT 3304 1800 GEN3 N/A CAT 100 480V YES YES GEN5 GEN6 VILLAGE: CENTRAL UTILITY: OWNERSHIP: CENTRAL VILLAGE CONTACT: “ATE: 10/26/88 PHONE: POWERHOUSE INVENTORY GEN1 ENGINE MAKE.............0.% CAT ENGINE MODEL............0. D343 ENGINE RPM......eeseeeccee 1800 YEAR INSTALLED............ = LAST MAJOR OVERHAUL (HRS). N/A CURRENT HOURS............. - GENERATOR MAKE............ CAT GENERATOR CAPACITY (KW)... 200 GENERATOR VOLTAGE........ . 480V PARALLEL SWITCHGEAR?...... YES KWH METER (YES or NO)..... YES GEN4 ENGINE MAKE..........--+. . ENGINE MODEL.............. ENGINE RMP...........2-0-- CURRENT HOURS............4- GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE......... POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... POWERHOUSE CLEANLINESS.......... . WASTE HEAT RECOVERY OPERATIONAL?. BUSS POWER METER?....... INDIVIDUAL GENSET METER?......... POWERHOUSE KWH METER?....... seeee WASTE HEAT BTU METER?........ eeee FIRE PROTECTION SYSTEM TYPE...... FIRE PROTECTION OPERATIONAL?..... LOAD DATA AVAILABLE? (KW DEMAND). POWER HOUSE GENERAL NOTES: 1. POWERHOUSE HAS GRAVEL FLOOR 2. USE HOSE FOR PIPING eee eee eee 1-2 TIMES DAILY FAIR No YES YES AMP/VOLT/FREQUENCY METER YES READS 19674 NO N/A N/A YES FROM 10/16/88 TO 10/26/88 3. FLEX CONDUIT & EXPOSED CABLES TO GENERATOR CONTROLERS, DISCONNECT SWITCHES, GENERATORS, ETC. 4. G-2 410V, 85A, 60HZ 5. BARE COPPER GROUND CONDUCTORS LAID ON SURFACE OF THE FLOOR. 6. GENERATORS ARE ON LINE, DATA READINGS: 62A, 70A, 50A, 424V, 60HZ. {LLAGE: CENTRAL UDELLTY > CENTRAL POWER CO. OWNERSHIP: CENTRAL VILLAGE CONTACT: DATE: 10/26/88 PHONE: FACILITY INVENTORY METERED? REMETERED YES No YES No S'INGLE) (EFAMTLIGY vice «0 elses «cists p.4 MULTI, FAMEIY: |) ici cs) vicisic o) siciele x RESIDENTIAL HOUSING....... x COMMERCIAL FACILITY....... x COMMUNITY FACILITY........ x FUEL SYSTEM INVENTORY LEAKS/CORROSION.......--eeeeeeeeees DAY TANK CAPACITY.........2eeeeeee POWER DISTRIBUTION SYSTEM “YOLTAGE/ PHASES - £STEM: OVERHEAD. ......eeeecececes UNDERGROUND. .......--eeeee COMBINED........ ee cee ceee LAID ON TUNDRA...........-.- CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: POLE VOLTAGE IN/OUT..........4.-- UNMETERED STREET LIGHTS: QUANITY........ eee cccccee ee ey GENERAL NOTES: YES APPROX 40,000/50,000 GALLON CAN NOT VERIFY DUE TO SNOW NONE APPARENT Ll 3-36"x60" 300 GALLONS EACH SET ON BLOCK APPROX. 6" A.F.F. NONE APPARENT YES READS 309.9 GAL. 2400V, N/A N/A N/A 3PH, 3W 3-50KVA, 2400/480V. 3PH 3W WOODEN PLATFORM ON GRADE N/A 480/2400V N/A 1. 75KVA PAD MOUNTED TRANSFORMER IS DISCONNECTED AND ABANDONED IN PLACE GROUND ROD APPROX. 9" A.F.G. 2. ONE OLD PAD MOUNTED TRANFORMER IS ABANDONED IN PLACE. 3. EXISTING SECURITY FENCE IS 30" HIGH. | LOAD ANAYLYSIS - CENTRAL VILLAGE POWER UTILITY DATE: 10/26/88 [roc c ec ec reece eee ee cece e cence cece cece eee ee eee ec eee eee eee eee een eee eee n eee nent een e eee een eee eens | KWH GAL AVG KWH/ Kw GAL AVG = KWH/ KWH GAL AVG = KWH/ | FY 8 FUEL LOAD GAL FY 87 FUEL LOAD GAL FY 88 FUEL LOAD GAL | wt tn ne ener nnn eee nee eee en nn nnn en nn ne ne nnn nnn ee nn nn ne en en nen nn ee enn nn nn en nn nn en ne eee eee ee eee eee eee | [1 ceeesescee ceecccece secces secccescs 17491.0 2073.0 24.0 8.4 19953.0 2400.0 27.3 8.3 [2 15320.0 2002.0 21.0 7.7 20874 .0 2181.0 = 28.6 9.6 [3 15088.0 1912.0 20.7 729. 19638.0 2181.0 26.9 9.0 [4 17213.0 2132.0 23.6 8.1 21240.0 2351.0 = 29.1 9.0 [5 20024 .0 2166.0 27.4 922 24405.0 2500.0 33.4 9.8 | 6 21133.0 2557.0 28.9 8.3 27224.0 2323.0 37.3 11.7 [7% —wareaecece seccccces scence cocecenee 23871.0 2605.0 32.7 9.2 30234.0 3144.0 9 41.4 9.6 | 8 5493.0 2160.0 7.5 2.5 20100.0 2222.0 27.5 9.0 32467.0 2979.0 44.5 | 10.9 19 7278.0 2451.0 10.0 3.0 19382.0 2315.0 26.6 8.4 24806.0 2778.0 34.0 8.9 |10 8820.0 1881.0 12.1 4.7 17378.0 2124.0 23.8 8.2 27641.0 2712.0 37.9 10.2 | 12892.0 1680.0 17.7 Ful 1974.0 2141.0 27.1 9.2 15011.0 2471.0 20.6 6.1 \12 14588.0 1851.0 20.0 7.9 18368..0 2158.0 25.2 8.5 14400.0 2330.0 19.7 6.2 | ss a = ssesesssz 0 szsss= = [TOTAL 49071.0 10023.0 26407.0 | AVERAGE 25.7 na SETS INSTALLED 200 KW 277/480 VOLT, 3-PHASE, 3-WIRE | 100 KW 277/480 VOLT, 3-PHASE, 3-WIRE |PEAK LOAD (KW) [LOW LOAD (KW) sases: |AMPERAGE LOADS RECORDED AT THE TIME OF INSPECTION WERE: 62 AMP, 70 AMP, 50 AMP. LINE VOLTAGE: 424 V, 60HZ. THIS LOAD CALCULATES [To 50.4 KW WITH THE 75 KW GENERATOR ON-LINE. KWH Generated (Thousands) 34 30 28 26 24 22 20 18 16 14 12 oN + FD DW = po =~ tf} ~~ JULY AUG ) FY ‘86 - SG o 5) ye tn a + eo / Pe wm pe AT +—* al tt fA if ty! tf SEPT OCT NOV DEC JAN CENTRAL VILLAGE ' FY ‘S87 | FEB #1) ts] 1 MAR APR FY ‘88 | MAY JUNE CENTRAL VILLAGE (PLANT LOG DATA) Date Time A_©-Amps B_QG-Amps Cc @-Amps Fuel-Gal. 10/16/88 7:46 pm 86 74 56 350 10/17/88 5:54 am 66 74 51 307 10/17/88 6:49 am 59 90 76 260 10/18/88 5:10 am 75. 84 54 520 10/18/88 7:43 pm 86 94 75 450 10/19/88 8:38 am 74 94 89 400 10/19/88 6:30 pm 57 70 68 365 10/20/88 9:30 am 72 96 85 308 10/20/88 9:19 pm 79 74 66 258 10/21/88 5:23 am 74 76 61 230 10/21/88 10:31 pm 82 93 76 496 10/22/88 5:28 am 83 100 72 468 10/23/88 10:00 am 80 94 74 355 10/23/88 6:00 pm 74 80 66 330 10/23/88 10:00 pm 69 75 62 310 10/24/88 7:00 am 61 73 130/95 280 10/24/88 3:00 pm 74 78 55 255 10/24/88 11:00 pm 72 74 51 215 10/25/88 7:00 pm 70 81 62 10/25/88 3:00 pm 90 95 80 180 10/25/88 9:00 pm 75 78 68 120 10/26/88 7:00 am 145 155 100 225 10/26/88 2:00 pm 80 105 80 109 CENTRAL Cost Estimate: ie Upgrade plant safety and ground grid system. Labor (36 hours @ $25/hours) 2; Install equipment cover plates as operator’s duty at no cost. 3, Wiring needs to be protected inside conduit and buried. Materials (allow $2,500) Labor (40 hours @ $25/hour) 4. Reroute service conduit and conductors to main distribution panel. Materials (allow $2,500) Labor (32 hours @ $25/hour) a Provide a 4 ft. Wx 10ft. Lx 8 ft. H chain link fence with padlock. Materials (allow $1,000) Labor as operator's duty OF Train operator. (8 hours @ $25/hour) Ti Provide a 10 pound fire extinguisher. $2,500 1,000 $2,500 800 $1,000 8. Engineering Costs (24 hours @ $32.50/hour). 9). Travel and Per Diem Costs. 10. APA Administrative Costs. SUBTOTAL Contingency (20%) TOTAL COST ESTIMATE $900 °o 3,500 3,300 200 200 3,400 3,900 $17,200 3,400 $20,600 3 FOO (6, 7°° JT ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTE TNA Far North Utility COMMUNITY — Central INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 PROJECT cost! $ 20,600 ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 GENERATION EFFICIENCY (KWH Sold/Gal ) Real Fuel Escalation Rate (%/Year) Base Case 7.8 1989-1998 1s After Project 128 1999-2008 0.0 LINE LOSSES(%), BASE YEAR ENERGY SALES“ (KWH) Base Case 10 PCE Eligible CSAS After Project 10 Not Eligible 113,467 TOTAL 370,700 ANNUAL GROWTH? (%) CURRENT PCE DATA2 ba 1989-2008 0 Rate (¢/KWH) 28.50 Fuel Price ($/Gal) 68 Other Utility Costs ($/Yr) ~110,342 QUTPUT_SUMMARY Simple Payback (Years) FUEL PCE SAVINGS SAVINGS NA NA Cumulative Net Savings (Nominal $ Project Year FUEL PCE dl 0 0 1-5 0 0 1-10 ) 0 1-20 0 0 1 All costs related to this project are for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. 3 Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 19% over the past three years. 4796/833/11 Alaska Power Authority January 1989 Central Panel generator control panel with exposed con- ductor. Dangerous wiring, 480v, needs to be protected inside conduit. Open SkW buss. Install equipment cover plates for MDP, generator circuit breakers, —— Central 3-50 kva oil filled trans- formers on wooden pad. Substation transformers are not secured. 8 ft. high fence is required for these live transformers. Present fence is only 4’ high. 100 & 200 kW Caterpillar generator sets with switchgear. Very poor grounding sys- tem. Will be rewired and bonded. CHALKYITSIK Summary: The isting overhead distribution is 480/277V, 3-phase, 4-wire. The existing generator building is module package with Halon fire protection system. It is in good condition. There are 2 genera- tors. One is a 75 kW, and the other is a 125 kW generator. CHALKYITSIK Recommendations: Ls Complete the work which Alaska Power Authority has provided $51,300 funding for as follows: a. Tie in the waste heat recovery to the washeteria, and water plant by summer of 1989. b. Purchase and install a new 75 kW generator in place of the 125 kW Detroit generator which is scheduled to be removed. Cc: Provide new services to six cabins around the _ lake (adjacent to town). Remove the existing 125 kW Detroit generator and its associat- ed devices. Loads are higher on Phase C than Phase A or B. Rebalance village loads by shifting some loads on Phase C to Phase A and B. There is a 100A imbalance between phases B and C on the school feeder. Rebalance this load. The existing distribution system is a 480 Volt, 3 phase, 3-wire overhead system with 3 kVA 480 Volt to 120/240V, 1 phase, 3-wire dry type step down transformers at each service drop. Each house is provided with a coin operated electrical meter that is thought to be inaccurate. These coin-operated meters need to be replaced with standard house meters. Provide power for lighting runway. Approximately 5 kW lighting load. "Train the operator" on how to most efficiently operate the power plant and in the use of plant logs to enhance preventa- tive maintenance, tracking parts costs, and fuel and oil consumption. VILLAGE: CHALKYITSIK UTILITY: MUNICIPAL OWNERSHIP: VILLAGE CONTACT: BILL FIELDSON TATE: 10/26/88 PHONE: PO! (OUSE INVENTORY GEN1 GEN2 GEN3 ENGINE MAKE............... DETROIT DETROIT ENGINE MODEL.............. 440FDR8024GG 360FDR8012GG ENGINE RPM................ 1800 1800 YEAR INSTALLED............ - : = LAST MAJOR OVERHAUL (HRS). N/A N/A CURRENT HOURS............. 11022.8 30796.2 GENERATOR MAKE............ MARATHON ELEC. MARATHON ELEC. GENERATOR CAPACITY (KW)... | 125KW/156KVA 75KW/93.8KVA GENERATOR VOLTAGE......... 120/208V 3PH 120/208V 3PH PARALLEL SWITCHGEAR?...... YES YES J KWH METER (YES or NO)..... YES YES GEN4 GEN5 GEN6 ENGINE MAKE............... ENGINE MODEL.............. ENGINE RMP............. ee oe YEAR INSTALLED....... LAST MAJOR OVERHAUL (HRS) . CURRENT HOURS............. GENERATOR MAKE.......... e GENERATOR CAPACITY (KW). GENERATOR VOLTAGE........ ; ARALLEL SWITCHGEAR?...... 4 «WH METER (YES or NO)..... POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS. 1-2 TIMES DAILY POWERHOUSE CLEANLINESS....... FAIR WASTE HEAT RECOVERY OPERATIONAL?. IN PROGRESS BUSS POWER METER?........ weeeeeee YES INDIVIDUAL GENSET METER?......... YES AMP/VOLT/FREQUENCY METER POWERHOUSE KWH METER?......... ... YES WASTE HEAT BTU METER?..........-. NO FIRE PROTECTION SYSTEM TYPE...... HALON & DETECTION FIRE PROTECTION OPERATIONAL?..... YES LOAD DATA AVAILABLE? (KW DEMAND). NO PLANT LOGS AVAILABLE POWER HOUSE GENERAL NOTES: 1. G-1 IS STAND-BY 2. G-2 DATA READINGS: 60A, 62A, 75A, 210V TOTAL LOAD: (1.73) (208) (65.6) = 23.6KW 3. G-2 PSI METER IS HELD IN PLACE BY A PIECE OF WIRE TIED TO GEN. 4. WORKING CLEARANCE IS LESS THAN 3’ IN FRONT OF 800A MAIN PANEL & SWITCHGEAR. 5. POWERHOUSE IS A MODULE PACKAGE MADE BY EMERSON. h:: FIRE ALARM CONTROL PANEL IS MADE BY CHEMTRON. ILLAGE: CHALKYITSIK UTILITY: MUNICIPAL OWNERSHIP: VILLAGE CONTACT: BILL FIELDSON DATE: 10/26/88 PHONE: ‘AC Tye R METERED? REMETERED YES NO ES No SINGLE FAMILY............. MULTI FAMILY ...cccccccoce COMMERCIAL FACILITY....... COMMUNITY FACILITY........ i a H i F im a a eH z o D4 d¢ de de >< BULK STORAGE CAPACITY............. 10-7’x18’ (6500 GALLONS EACH) DIKED CONTAINMENT?....... he eae . YES LEAKS /CORROSION) Set ee NONE APPARENT DAY TANK CAPACITY......... Wa elase YES (300 GALLONS) = DAY TANK DIKE........... Va etoee ts see | | YES! LEAKS/CORROSION......... Leela NONE APPARENT DAY TANK METERED?................. YES 606.5 GALLON POWER DISTRIBUTION SYSTEM “"OLTAGE/ PHASES _YSTEM: OVERHEAD....... E Palette roteleliel4 277/480, 3PH, 4W UNDERGROUND..............-. N/A COMBINED............000005 N/A LAID ON TUNDRA............ N/A CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: CAPACITY UE nneeiee DRY TYPE INSIDE MAIN PANEL PAD ee ae BL EES EN Al POLE er ee Ae el N/A VOLTAGE IN/OUT............ 208/480V UNMETERED STREET LIGHTS: QUANITY......... Blea simistelel | | (NAA G NOTES: 1. FUEL IS FLOWN IN. APPROXIMATE COST: $2.00/GAL 2. NEW SCHOOL HAS ITS OWN GENERATOR, 125KW 120/208V 3PH 4W DATA READING: 100A, 50A, 150A, TOTAL SCHOOL LOAD = (1.73) (208) (100) (1.0)=36.0KW 3. TOTAL LOAD FOR ENTIRE VILLAGE & SCHOOL: 23.6KW+36KW=59.6KW OR 60KW 4. EVERY HOUSE HAS A 3KVA DRY TYPE XFMR, 480 TO 120/240V, 1PH, 3W 5. 3-BULK STORAGE TANKS (LAID HOR.) ARE FOR VILLAGE 6. 7-BULK STORAGE TANKS (VERTICAL) ARE FOR SCHOOL my, CHALKYITSIK Cost Estimate: 1 Complete work with other Alaska Power Authority funding: a. Tie in waste heat recovery. b. Specify and install a new 70 kW generator, controller and its associated device (including freight). (i Provide services to 6 cabins. This project is already funded and, therefore, no cost estimate is provided. $0 2. Remove existing 125 kW Detroit generator: ~ Labor (24 hours @ $25/hour) 600 3. Rebalance loads in the village: (24 hours @ $25/hour) 600 © 4, Rebalance loads in the school: (24 hours @ $25/hour) 400 ® Sis Train the operator. (8 hours @ $25/hour) 200 O 6. Travel and Per Diem Costs. 1,600 O 7. APA Administrative Costs 1,500@ SUBTOTAL $4,900 Contingency (20%) 1,000 0 TOTAL COST ESTIMATE $5,900 zy? ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTILITY: Chalkyitsik Systems COMMUNITY Chalkyitsik INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 PROJECT cost! $ 5,900 ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 GENERATION EFFSCIENCY (KWH Sold/Gal) Real Fuel Escalation Rate (%/Year Base Case 5.8 1989-1998 15) After Project 10.0 1999-2008 0.0 LINE LOSSES(%), BASE YEAR ENERGY SALES® ( KWH) Base Case 12 PCE Eligible 98,350 After Project 10 Not Eligible 26 607 TOTAL 124,957 ANNUAL GROWTH? (2) CURRENT PCE DATAS = 1989-2008 0 Rate (¢/KWH) 41.80 Fuel Price ($/Gal) 2.00 Other Utility Costs ($/Yr) 27,627 OUTPUT SUMMARY Simple Payback (Years) FUEL PCE SAVINGS SAVINGS 1 1 Cumulative Net Savings (Nominal $) Project Year FUEL PCE L 18,100 9 ,400 1-5 93,300 44 ,300 1-10 193,900 81,000 1-20 401,000 148 ,000 All costs related to this project are for efficiency improvements. 2 Recent PCE data are not available for this community. Consequently, data are assumed to be the same as Hughes, a community of comparable size with a similar electrical system. 3 Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 2% over the past three years. Any future load growth would improve the economics of the project and reduce the number of years for payback. 4796/833/7 Alaska Power Authority January 1989 Chalkyitsik Module package power house . Powerhouse interior - compact, but functional. 800 Amp main distribution panel with kWH meters above and master generator panel with capability of parallel operation. Chalkyitsik. 10 bulk storage tanks (6,500 gallons each) with dike and liner in place. Fuel tank farm New school with its own 125kW generator for stand- by. CIRCLE Summary: The existing overhead distribution is 4.16/2.4 kV, 3-phase, 4-wire. The substation consists of 3-50 kVA - 4.16/2.4 kV - 240/120V, 3 phase, 4-wire distribution transformers. The existing generator building is in good condition with dry chemical fire protection. There are 2 generators. One is a 55 kW that is retired, and the other is a 90 kW generator. A new security fence is required around the substation. Purchase of a 35 kW generator set for summer use to better match the load and increase fuel efficiency. Rebalance loads and install kW demand meter and kWH meter for station service. CIRCLE Recommendations: 1. Provide a better security for the substation transformer. The existing substation enclosure is 30 inches high and needs to be at least 8 feet high with a padlocked gate. Install cover plate on the panel. Install all exposed cables in conduit. Ground grid system to be thoroughly inspected and bonded. Purchase 35 kW generator set to better match the loads and increase fuel efficiency. Install kW meter, and kWH meter for powerhouse (station service). Provide a 5 pound fire extinguisher. Re-balance loads. "Train the operator" on how to use the plant logs to enhance preventative maintenance, tracking parts costs, fuel and oil consumption. © VILLAGE: CERCEEB UTILITY: CIRCLE UREEI LY. OWNERSHIP: D. HUTCHINSON CONTACT: DICK OR ERLA 7 AEs 11/09/88 PHONE: 773-1222, 1000 POWERHOUSE INVENTORY GEN1 GEN2 GEN3 ENGINE MAKE............... CAT CAT ENGINE MODEL.............. 3304NA 3304TURBO ENGINE RPM. 000.06 .0c5 sce 1800 1800 YEAR INSTALLED............ 1987 1988 LAST MAJOR OVERHAUL (HRS). 1-2 YR AGO NEVER CURRENT HOURS............. 10,528 9219 GENERATOR MAKE............ CAT CAT GENERATOR CAPACITY (KW)... 55 90 GENERATOR VOLTAGE......... 230V, 3H 230V, 3H PARALLEL SWITCHGEAR?...... No NO KWH METER (YES or NO)..... NO NO GEN4 GEN5 GEN6 ENGINE MAKE............... ENGINE MODEL.............. ENGINE RMP.............00. YEAR INSTALLED............ LAST MAJOR OVERHAUL (HRS). CURRENT HOURS............. GENERATOR MAKE............ GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE..... Welle \RALLEL SWITCHGEAR?...... dH METER (YES or NO)..... POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... 24 HOURS/DAY POWERHOUSE CLEANLINESS........... FAIR WASTE HEAT RECOVERY OPERATIONAL?. NOT YET BUSS POWER METER?..........2+++++ NO INDIVIDUAL GENSET METER?......... | YES AMP/VOLT/FREGUENCY METER POWERHOUSE KWH METER?............ NO WASTE HEAT BTU METER?..........0- NO FIRE PROTECTION SYSTEM TYPE. eeeee DRY CHEMICAL EXTINGUISHER FIRE PROTECTION OPERATIONAL?..... YES LOAD DATA AVAILABLE? (KW DEMAND). NO PLANT LOGS AVAILABLE POWER HOUSE GENERAL NOTES: 1. G-1 IS ON-LINE. IT HAD ONE MINOR OVERHAUL DUE TO VALVE-PISTON INTERFACE. 2. G-1 - DATA READINGS: 99A, 120A, 100A, 225V, 60 HZ CALCULATED DEMAND LOAD: (1.73) (225) (106.3)=41.4 KW 3. MANUAL CONTROL WITH A 200A, 240V, DOUBLE-POLE THROW DISCONNECT SWITCH. CH #CH21H. 4. G-2 IS STAND-BY. HEAT EXCHANGER IS INSTALLED, BUT NOT YET OPRATIONAL. POWERHOUSE IS A CONCRETE BLOCK STRUCTURE. CLLAGE: CIRCLE UTILITY: CIRCLE UTILITY OWNERSHIP: D. HUTCHINSON CONTACT: DICK OR EARLA DATE: 11/09/88 PHONE: T713—1:2)2i2), | OOO FACILITY INVENTORY METERED? REMETERED YES ' NO YES NO SINGLE FAMILY............2. MULTI FAMILY ...ccccccccee BULK STORAGE CAPACITY............. YES, 2-5,000 GALLONS EACH DIKED CONTAINMENT?............020.6 NO LEAKS/CORROSION.......2-2eeeee ss 86 NONE APPARENT DAY TANK CAPACITY......ccccccccecs YES, 300 GALLON DAY TANK DIKE.......eeeccsvcccccces NONE APPARENT LEAKS/CORROSION........e2eeeeee eee NO DAY TANK METERED?...........0es0e-% YES 82.1 TOTAL 5763.1 POWER DISTRIBUTION SYSTEM “"YLTAGE/ PHASES (STEM: OVERHEAD.....cecccccscvcce 2400 DELTA, 3PH, 3W UNDERGROUND. ........--226- 350’U.G. CU. 15KV CABLE W/NEUTRAL COMBINED. .....ccccccccsccs N/A LAID ON TUNDRA............ N/A CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: CAPACITY (ls anieea eee aeee 3-50 KVA-2400 V/240V, 1PH PAD EE eee a 0 CONCRETE W/ WOODEN ENCLOSURE POLE) Sate BOWEN A VOLTAGE IN/OUT............ 240V/2400V UNMETERED STREET LIGHTS: QUANT TY shee eee 7 GE NOTES: 1. UNMETERED STREET LIGHTS ARE APPROX. 65W OR 83W PER FIXTURE 2. IN SUMMER 55KW IS A LITTLE TOO BIG FOR LOAD, TOO SMALL FOR WINTER LOAD. 3. NEED TO METER AT LEAST ONE STREET LIGHT. | | | | PR 12448.0 2450.0 17.1 54 11805.0 2000.0 16.2 5.9 | [2 ceccreccee ceeeeeeee cree ee - 16474.0 2740.0 22.6 6.0 12088.0 2050.0 16.6 5:9 1 | [3 weccee cece sete ee eee ceeee - 13982.0 2880.0 19.2 4.9 18965.0 2550.0 26.0 7.4 [4 ceccre cece ceeeeecee ce eeee : 20181.0 2635.0 27.6 Tail 18853.0 2459.0 25.8 Taw [5 cecctec cee ceeee cece ceeeee 18647.0 2696.0 25.5 6.9 20770.0 2530.0 28.5 8.2 | [6 seccreccse ceeeeceee ceeeee 19471.0 2451.0 26.7 7.9 16837.0 2598.0 23.1 6.5 |7 wecereesce ceeeeecce ceeeee 17760.0 2387.0 24.3 7.4 17058.0 2573.0 23.4 6.6 | 8 19831.0 2436.0 27.2 8.1 16127.0 2311.0 22.1 | 7.0 |9 19237.0 2725.0 26.4 7A 18404.0 2259.0 = 25.2 8.1 |10 16527.0 2340.0 22.6 7.1 14140.0 2250.0 19.4 6.3) | {1 14626.0 2240.0 20.0 6.5 14984.0 2093.0 20.5 Tee) [12 : 15532.0 2100.0 21.3 7.4 14152.0 2170.0 19.4 655751 | sazzezsss sasesszzss Ssesssszz osezss= sezzss Seeesessss ssesezzsz= ==: | TOTAL 204716.0 30080 .0 194183.0 27843.0 | AVERAGE 0.0 0.0 23.4 6.8 22.2 6.9 | sce SETS INSTALLED 55 KW 230 VOLT, 3-PHASE, 4-WIRE | 90 KW 230 VOLT, 3-PHASE, 4-WIRE | | | eee cece ccc www c cece ewww ewe ce ewe cece cece wee ee cee cece cet cece ee cece ewww eee cece en cece eww ewww eee meee ween ewww eee e ence eeee [YEAR FY 86 FY 87 FY 88 ’ | | weecccccccccccc cc ccc ccc ccc ccc ccc eee cecccccccccc cece ccc ccccccccesccccccescccccc cece cesccees cccceccccccccc ccc ccc ccc cc cc cece ccc ecccess [PEAK LOAD (KW) 0.0 27.6 28.5 |LOw LOAD (kW) 0.0 17.1 16.2 | ==s2sesesesescsesesesensssssssssasssessssssseasssssasssssssssssssesssessssssssssssssssssssssss=s am [AMPERAGE LOAD RECORDED AT THE TIME OF INSPECTION AS FOLLOWS: 99A, 120A, 100A @ 225V. THIS DEMAND IS CALCULATED AT 41.4KW BASED JA SSKW CAT GENERATOR THAT WAS ON-LINE. ACCORDING TO THE AMPERAGE INDICATED, THERE IS A LOAD IMBALANCE OF ABOUT 17% ON THE |120/230V, 3-PHASE GENERATION PLANT. KWH Generated (Thousands) Nw a HAN ®W O | | 0 = JULY I~ AUG 7" ss i ee a —— SEPT OCT NOV DEC JAN Oo CIRCLE CITY FY °87 ° I FEB FY 88 r MAR Ceol) APR MAY = JUNE CIRCLE Cost Estimate: ys 10. ii. 12. Provide a4 ft. WX 15 ft. Lb xX 8 £t. H wooden enclosure around transformer bank with pad lock. “ Labor as operator's duties $0 Materials (allow $1,000) 1,000 Install equipment cover plates as operator's duties at no cost. Install exposed cables in conduit. Labor (40 hours @ $25/hour) $1,000 Materials: EMT conduit - 2-1/2", bushing, etc. 2,200 Ground grid system for plant safety and equipment. Labor (20 hours @ %25/hour) $500 Materials: Bare coppers #2, ground rods, clamps, grounding bushings, etc. 500 Install 35 kW generator for summer use. Materials 12,000 Labor (80 hours @ $25/hour) 2,000 Install kW demand meter in the switchgear and kWH station service meter. Materials 2,000 Labor (20 hours @ $25/hour) 500 Provide a 5 pound fire extinguisher. Re-balance loads in the city. Labor (16 hours @ $25/hour) Train the Operator. (8 hours @ $25/hour) Engineering Costs. Travel and Per Diem Costs. APA Administrative Costs. SUBTOTAL Contingency (20%) TOTAL COST ESTIMATE 1,000 3,200 1,000 14,000 2,500 100 400 200 1,300 4,100 6 , 800 $34,600 6,900 $41,500 ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTILITY: _ Circle Electric Utility COMMUNITY Circle City INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 PROJECT cost! $ 41,500 ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 GENERATION EFF CIENCY (KWH Sold/Ga1) Real Fuel Escalation Rate Base Case SS 1989-1998 Le After Project 10.0 1999-2008 0.0 LINE LOSSES(%), BASE YEAR ENERGY SALES? (KWH) Base Case 12 PCE Eligible 112,450 After Project 10 Not Eligible 90,381 TOTAL 202,831 ANNUAL GROWTH? (%) CURRENT PCE DATAS > 1989-2008 0 Rate (¢/KWH) 36.50 Fuel Price ($/Gal) 84 Other Utility Costs ($/Yr) ~75,000 OUTPUT SUMMARY Simple Payback (Years) FUEL PCE SAVINGS SAVINGS 7 12 Cumulative Net Savings (Nominal $ Project Year FUEL PCE 1 6,500 3,400 1-5 33 ,300 17,500 1-10 69,100 36 ,400 1-20 143 ,000 75,300 The project cost includes $24,300 for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. a Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 1% over the past three years. Any future load growth would improve the economics of the project and reduce the number of years for payback. 4796/833/8 Alaska Power Authority January 1989 Circle City Concrete block power house and fuel storage tank. Substation transformer bank not secured - needs fenced enclosure. Typical distribution pole operating 2400v - 3 phase, 3 wire. EAGLE Summary: The existin overhead distribution is 12.47/7.2 kv, 3 phase, 4-wire. The substation consists of 3 - 50 kVA - 12.47/7.2 kV - 480/277V, 3-phase, 4-wire distribution transformers (on H-platform). Existing generator building is in excellent condi- tion. There are 2 - 125 kW generators which are fairly new. EAGLE Recommendations: Lis Provide power to Eagle Village’s powerhouse. 2 Provide service to additional areas with new meters for new loads by July, 1989. 3. The Alaska Power Authority should provide technical assistance to perform a detailed investigation on power system losses. The losses on the system are excessive and may be due to improper metering, poor transformer loading, bad cable connections, CT's or under sized conductors. 4. The Alaska Power Authority should help the Eagle. Power Company assemble a list of suppliers that sell or rent meter testing equipment. This list will be used to purchase or rent equipment to be used in the loss study described in item 3 above. a Provide a 5 pound extinguisher inside the power house. VILLAGE: EAGLE OWNERSHIP: EAGLE POWER NATE: 10/26/88 Po OUSE INVENTORY CURRENT HOURS............. GENERATOR CAPACITY (KW) . GENERATOR VOLTAGE......... CURRENT HOURS............. GENERATOR CAPACITY (KW) . GENERATOR VOLTAGE....... oe “ARALLEL SWITCHGEAR?...... 4H METER (YES or NO)..... POWERHOUSE GENERAL UTILITY: CONTACT: PHONE: GEN1 CAT SR-4-4W 8964 1800 1985 ‘ N/A 14,000 CAT 125 277/480V 3PH YES NO GEN4 EAGLE POWER CO. RALPH HELMER GEN2 CAT SR-4-4W 8964 1800 1985 N/A 14,000 CAT 125 277/480 3PH YES NO GEN3 GEN5 GEN6 POWER GENERATION EFFICIENCY ..... POWERHOUSE POWERHOUSE WASTE HEAT ATTENDED HOURS/DAYS... CLEANLINESS........... RECOVERY OPERATIONAL?. 1-2 TIMES DAILY YES YES BUSS POWER METER? POWERHOUSE KWH METER?...... eeeee . YES YES READS 4588x288KW YES READS 1802.5 WASTE HEAT BTU METER?......... eee NO FIRE PROTECTION SYSTEM TYPE...... NO FIRE PROTECTION OPERATIONAL?..... NO LOAD DATA AVAILABLE? (KW DEMAND). YES POWER HOUSE GENERAL NOTES: 1. POWERHOUSE HAS CONCRETE FLOOR AND IS CLEAN 2. TECHNICAL PROBLEM WITH SYSTEM LOSS WHICH IS APPROX. 12.5% TO 13% LINE LOSS OVERALL, POWER HOUSE IS IN EXECLLENT CONDITION. NOU WwW PEAK LOAD IS APPROX. POWERHOUSE GENERATES 12.5KWH/GAL. PLANTSIZE IS ADEQUATE TO PROVIDE POWER TO THE VILLAGE G-2 IS OFF-LINE FOR REPAIR OF EXHAUST SYSTEM. WASTE HEAT RECOVERY OPERATIONAL, TIED TO GATEWAY SCHOOL. 109KW. VILLAGE: EAGLE UTILITY: EAGLE POWER CO. OWNERSHIP: EAGLE POWER CO. CONTACT: RALPH HELMER DATE: 10/26/88 PHONE: FACILITY INVENTORY METERED? REMETERED YES . NO YES NO SINGLE FAMILY............. Xx MULTI FAMILY ............ - N/A RESIDENTIAL HOUSING....... X COMMERCIAL FACILITY....... Xx COMMUNITY FACILITY........ X FUEL SYSTEM INVENTORY BULK STORAGE CAPACITY............. BURIED-UNKNOWN CAPACITY DIKED CONTAINMENT?.........000e005 NO LEAKS/CORROSION........... eee NONE APPARENT . DAY TANK CAPACITY........ seeeeeees 30"xX72" (500 GAL) DAY TANK DIKE............. eeeeeeee NO LEAKS/CORROSION......... weeeeeeees NONE APPARENT DAY TANK METERED?.............000- YES READS 796 POWER DISTRIBUTION SYSTEM VOLTAGE/ PHASES SYSTEM: OVERHEAD..........005 wees. 7200/12470V, 3PH, 4W UNDERGROUND. ........- weeee N/A COMBINED...........4. weeee N/A LAID ON TUNDRA.........-.- N/A CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: CAPACITY...........+2++2++ 3-S5OKVA - 12.47KV/480V, 3PH, 4W PAD... eee ec e cece eee eees N/A POLE .........20e2eeeee2++ PLATFORM VOLTAGE IN/OUT............ 12.47KV/480V UNMETERED STREET LIGHTS: QUANITY....... Sameceneee | N/A GENERAL NOTES: 1. 7200/12.47KV 3PH 4W OVERHEAD DISTRIBUTION TO 3-50KVA 12.47KV/480V (OIL FILLED) TRANSFORMERS. 2. FLEX CONDUIT (PLASTIC TYPE) RUNS ALONG POLE AND U.G. TO POWERHOUSE. FLEX CONDUIT IS NOT P.V.C. TYPE. EAGLE POWER COMPANY : 10/26/88 | LOAD = ANAYLYSIS - | {1 14410.0 1990.0 19.7 7.2 27072.0 2800.0 ------ ------ 30289.0 3281.0 41.5 9.2 [2 14475.0 2000.0 19.8 7.2 32256.0 3250.0 44.2 9.9 31496.0 3447.0 43.1 9.1 [3 12440.0 1730.0 17.0 Ta 31104.0 3250.0 42.6 9.6 30000.0 3417.0, 41.1 8.8 | 14 12721.0 1790.0 17.4 7.1 34272.0 3400.0 46.9 10.1 35059.0 3730.0 48.0 9.4 | [5 31058.0 3380.0 © 42.5 9.2 36576.0 3390.0 50.1 10.8 34857.0 3540.0 47.7 9.8 | [6 28952.0 3475.0 39.7 8.3 38304.0 3440.0 52.5 19.1 39688 .0 3890.0 54.4 10.2 |7 30194.0 3340.0 41.4 9.0 38880.0 3420.0 53.3 11.4 42141.0 3820.0 57.7 11.0 [8 27372.0 2990.0 37.5 9.2 35424.0 3080.0 48.5 11.5 40004 .0 3460.0 54.8 = 11.6 19 26515.0 2900.0 36.3 9.1 37152.0 3287.0 50.9 11.3 38472.0 3437.0 52.7 ~ 11.2 |10 24508.0 2830.0 33.6 8.7 33120.0 2988.0 45.4 911.1 35455.0 3270.0 48.6 = 10.8 {11 22515.0 2690.0 30.8 8.4 33696.0 3225.0 46.2 10.4 35097.0 3216.0 48.1 10.9 j12 19979.0 2690.0 27.4 7.4 29664 ..0 2945.0 40.6 10.1 30628.0 2957.0 42.0 10.4 | | sasssssss= sescssss= ssssz= ssssszss= 00 aessssss2= 00 =ssscssa= 0 sesss= 0 ssss== 0 ss==sss=== == [TOTAL 265139.0 — 31805.0 407520.0 38475.0 423186.0 41465.0 | AVERAGE 30.3 8.2 43.4 9.8 48.3 10.2 | Ne ne [GENERATOR SETS INSTALLED 125 KW 277/480 VOLT, 3-PHASE, 4-WIRE | 125 KW = 277/480 VOLT, 3-PHASE, 4-WIRE | | | ane a ne en ee en en nn nn ne nn ne en te ne ee ee nn nnn ee ee een ee ne eee eee nee ne eee eee ee ene eee eee ee eee ee eee eee eeeeeee | YEAR FY 86 FY 87 FY 88 { | ee ee en ee ne en nn ee ee ne ee een ne ee ee en enn ee ee eee nn ee nnn ene eee eee eee eee |PEAK LOAD (KW) 42.5 53.3 57.7 [LOW LOAD (KW) |=s5555=s===5 |LOAD RECORDED AT TIME OF INSPECTION WAS 109 KW PEAK. A 125 KW GENERATOR WAS ON-LINE. KWH Generated (Thousands) 45 40 35 30 25 20 IS + 10 JULY ty ——$£ ~ AUG FY “86 aa I SEPT A) —— OCT a a - - * + ‘= - . _-~ 2 = el | | I NOV DEC JAN EAGLE POWER COMPANY ' FY °87 == | FEB ‘ANW I MAR eh | APR FY °88 ~H | MAY JUNE EAGLE Cost Estimate: Ly Provide power to Eagle Village's powerhouse. This project is already funded and, therefore, no cost estimate is provided. Alaska Power Authority to analyze system to determine reason for excessive system losses. This project is already funded and, therefore, no cost estimate is provided. Provide a 5 pound fire extinguisher. TOTAL COST ESTIMATE $0 ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTILITY: Eagle Power Company COMMUNITY Eagle INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 PROJECT cost! $ 100 ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 GENERATION EFFICIENCY (KWH Sold/Gal) Real Fuel Escalation Rate (% Year) Base Case“ 9.7 1989-1998 1.5 After Project 9.7 1999-2008 0.0 LINE LOSSES(%), BASE YEAR ENERGY SALES“ (KWH) Base Case 13 PCE Eligible 244 ,292 After Project 10 Not Eligible 144 ,886 TOTAL 389,178 ANNUAL GROWTH? (%) CURRENT PCE pata? <= 1989-2008 0 Rate (¢/KWH) 25.64 Fuel Price ($/Gal) ~95 Other Utility Costs ($/Yr) 100,058 OUTPUT SUMMARY Simple Payback (Years) FUEL PCE SAVINGS SAVINGS NA NA Cumulative Net Savings (Nominal $) Project Year FUEL PCE 1 0 0 1-5 0 0 1-10 0 0 1-20 0 0 All costs related to this project are for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. 3 Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 37% over the past three years. 4796/833/9 Alaska Power Authority January 1989 125 kW Caterpillar gener- ators, one generator is out of service due to tur- bocharger problem. Waste heat to school. Eagle Main step-up transformer bank. Generators at 480v, 3 phase thru SOkVA tranformers to 12.47 kV 3 phase, 4 wire overhead distribution system. Main engine controls. Station service kWH meter. Note dual clocks to maintain frequency, i.e. one on battery, one 120v AC. Buss kWH meter. EAGLE VILLAGE Summary: The existing overhead distribution is 7.2 kV l phase, 2-wire. The substation consists of a 25 kVA - 7.2kV - 240/120V, 1 phase, 3-wire distribution transformer on an H-platform. The existing generator building is in fair condition. There are 2 generators. One is a 30 kW, and the other is 55 kW generator. Replace the 55 kW generator with a new 30 kW generator to match the load and increase fuel efficiency. Recommend to intertie to Eagle Power Company and rebalance village loads. EAGLE VILLAGE Recommendations: 7 he mh nm oO Rebalance village distribution system to prevent fue wasting in village power house. 55 kW John-Deere generataqr is not to be rebuilt. Remove it from power house. Install a new 10 kW, air-cool, diesel generator, generator controller (unit mounted) in place of 55 kW generator which is to be removed for better fuel consumption and summer load. Intertie village power house to Eagle Power Company with a 25 KVA 480V/240V, 1 phase, 3 W step-up transformer. Remove existing 200 Amp main disconnect switch. New automatic transfer switch to replace in its place. Install a 200 Amp automatic transfer switch to accommodate emergency power (Eagle Power Company) and normal power (Eagle Village) and connect to existing 200 Amp double pole double throw disconnect switch. Install a kWH meter with detents for buss power house. Provide a 5 pound fire extinguisher in the power house. "Train the Operator" on how to best operate the power plant the the use of plant logs to enhance preventative maintenance of the plant and tracking parts costs, and fuel and oil consumption changes. VILLAGE: EAGLE UTILITY: EAGLE VIL. ENGERY SYS. OWNERSHIP: EAGLE VILLAGE CONTACT: RUTH RIDLEY NATE: 10/26/88 PHONE: POWERHOUSE INVENTORY GEN1 GEN2 GEN3 ENGINE MAKE............... JOHN DEERE JOHN DEERE ENGINE MODEL.............. NL 42767-55N NL 42190-30L ENGINE RPM.........-.-000. 1800 1800 YEAR INSTALLED............ - : 82 OR 83 LAST MAJOR OVERHAUL (HRS). N/A N/A CURRENT HOURS............. 20932.6 NO METER GENERATOR MAKE............ NORTHERN LIGHTS NORTHERN LIGHTS GENERATOR CAPACITY (KW)... 55 30 GENERATOR VOLTAGE......... | 120/240V 120/240V PARALLEL SWITCHGEAR?...... NO NO KWH METER (YES or NO)..... No NO GEN4 GEN5 GEN6 ENGINE MAKE.............4. ENGINE MODEL.............. ENGINE RMP.............005 ms YEAR INSTALLED............ LAST MAJOR OVERHAUL (HRS). CURRENT HOURS............. GENERATOR MAKE............ GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE...... ae “ARALLEL SWITCHGEAR?...... (H METER (YES or NO)..... POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... 1-2 TIMES DAILY POWERHOUSE CLEANLINESS........... FAIR WASTE HEAT RECOVERY OPERATIONAL?. N/A BUSS POWER METER?............+.+. NO INDIVIDUAL GENSET METER?....... .. YES AMP/VOLT/FREQUENCY METER POWERHOUSE KWH METER?............ NO WASTE HEAT BTU METER?....... arise NO FIRE PROTECTION SYSTEM TYPE...... NO FIRE PROTECTION OPERATIONAL?..... N/A LOAD DATA AVAILABLE? (KW DEMAND). NO LOGS POWER HOUSE GENERAL NOTES: 1. G-1 IS OFF. 2. WASTE HEAT RECOVERY WILL BE POSSIBLE FOR POWERHOUSE & WASHETERIA. 3. DATA READING: 10A, 44A, AB;243V, AN;126.5V BAD LINE BALANCING, TOATAL LOAD= (10A + 55A) (120V) (1.0) =7800W 4. GENERATORS ARE DIRTY 5. PLANT LOGS ARE NOT AVAILABLE CLLAGE: EAGLE OWNERSHIP: EAGLE VILLAGE DATE: 10/26/88 FACILITY INVENTORY SINGLE FAMILY. MULTI FAMILY eee RESIDENTIAL HOUSING....... COMMERCIAL FACILITY COMMUNITY FACILITY FUEL SYSTEM INVENTORY LEAKS/CORROSION... DAY TANK CAPACITY DIS “YOLTAGE/ PHASES YSTEM: ULEILITY': CONTACT: PHONE: EAGLE VIL. ENERGY SYS. RUTH RIDLEY METERED? YES NO 2-8'x20" NO NONE APPARENT . 2-OVAL SHAPE (165 GALLON EACH) NO N/A N/A (7,500 GALLON EACH) een e) eiletle: © 2W 7200V, N/A N/A N/A 1PH, CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: POLE ..... VOLTAGE IN/OUT UNMETERED STREET LIGHTS: GENERAL NOTES: 1. ALL POWER DISTRIBUTION POLES ARE .. 1-25KVA, 7200V, 3W .. N/A PLATFORM 7200/240V 240V, 1PH, . sis s|s: N/A NATIVE SPRUCE, PEELED Asta eeeeea acca ia caaTT a TT TTA TETAS FLEE FTL | | LOAD ANAYLYSIS = - EAGLE VILLAGE ENERGY SYSTEM DATE: 10/26/88 | Le arr Ti TT aii area saad PeetaT a ais Saas eke | | GENERATORS IN SERVICE 55 KW , 30 KW | ere eer eer a er Sets a aes oc career Sena cee ots | | KWH GAL AVG KWH/ KWH GAL AVG KWH/ KWH GAL AVG KWH/ | | FY 86 FUEL LOAD GAL FY 87 FUEL LOAD GAL FY 88 FUEL LOAD GAL | Nigiri srecretec rege esac es a a a a aaa Sida TTATEAT TAIT ii AUN niaaaeresatenettaerTaeses | | | ey) 3851.0 1140.0 5.3 Sue) | sewers ae | Seimei se | [is reiwet ene 3550.0 1100.0 4.9 Seen | 2 2450.0 1050.0 3.4 2.3 3604.0 2121.0 4.9 led 4150.0 1150.0 5.7 3.6 | es 6250.0 1250.0 8.6 5.0 3604.0 2211.0 4.9 1.6 4950.0 1200.0 6.8 4.1 | 14 5283.0 1250.0 Te Ase: 3604.0 2294.0 4.9 1.6 5200.0 950.0 te p25 2 eI 15 5435.0 1260.0 7.4 4.3 4977.0 2404.0 6.8 2.1 6150.0 1230.0 8.4 b.0)17| | 6 4602.0 1052.0 6.3 4.4 6952.0 2552.0 9.5 cf 6950.0 1570.0 9.5 4.4 | 4 6528.0 1170.0 8.9 5.6 4985.0 1300.0 6.8 3.8 6650.0 1440.0 920s) 4-6) 11) | 8 7123.0 1328.0 9.8 5.4 4985.0 1350.0 6.8 Sait, 6300.0 1540.0 8.6 4.1 | 19 4895.0 1417.0 6.7 3.5 4560.0 1250.0 6.2 3.6 4900.0 1070.0 6.7 4.6 | |10 4850.0 1580.0 6.6 3.1 5691.0 1400.0 7.8 4.1 4500.0 920.0 6.2 4.9) * | (11 4537.0 1520.0 6.2 3.0 5230.0 1375.0 (22 3.8 3850.0 1500.0 D> 267711 12 3000.0 18200.0 4.1 0.2 4530.0 1200.0 6.2 3.8 3500.0 1360.0 4.8 2.6 | | = | [TOTAL 58804 .0 32217.0 52722.0 19457.0 60650.0 15030.0 | J AVERAGE 6.7 3.7 6.0 2.7 6.9 4.1 | Meee reesirasi rials uleaacaieensaisns aastes te ier ieee seg pees erences seo cas oceans aces aa aa | |GENERATOR SETS INSTALLED 55 KW 120/240 VOLT, 1-PHASE, 3-WIRE | | 30 KW = 120/240 VOLT, 1-PHASE, 3-WIRE | | 1 | | [PEAK LOAK (KW) 9.8 9.5 9.5 |LOW LOAD (KW) 3.4 4.9 4.8 JAMPERAGE LOADS RECORDED AT THE TIME OF INSPECTION WERE: 10 AMP, 55 AMP, LINE VOLTAGE: 243 VOLT & VOLTAGE TO NEUTRAL: 126.5 V. |THE LOAD IS IMBALANCED. THIS LOAD CALCULATES TO 7.8 KW BASED ON THE 30 KW GENERATOR ON-LINE. KWH Generator (Thousands) @ 0 JULY (1 I AUG FY ‘86 ——— SER as OCT | I | NOV DEC JAN EAGLE VILLAGE \ PV 87 — FEB Ht MAR | APR FY “88 4 | MAY JUNE EAGLE VILLAGE Cost Estimate: ae 10. TeIs5 AZ Rebalance loads in the village. Labor (24 hours @ $25/hour) Remove existing 55 kW John Deere generator: Labor (24 hours @ $25/hour) Specify and install a new 10 kW generator and its associated devices. Material (allow $15,000) $15,000 Labor (30 hours @ $25/hour) 750 Intertie to Eagle Power Company. This project is currently funded and, therefore, no cost estimate is provided. Remove existing 200 Amp disconnect switch. Labor (6 hours @ $25/hour) Purchase and install a 200 Amp Manual transfer switch. Material (allow $1,000) $1,000 Labor (10 hours @ $25/hour) 250 Purchase and install new totalizing kWH meter. Alaska Power Authority will install and maintain this meter, therefore, no cost estimate is provided. Provide a 5 pound fire extinguisher. Train operators (8 hours @ $25/hour). Engineering Costs (24 hours @ $32.50/hour). Travel and Per Diem Costs. APA Administrative Costs SUBTOTAL Contingency (20%) TOTAL COST ESTIMATE $600 ~N wn oO $150 100 200 750 2,000 3,500 $24,900 _5,000 $29,900 @M ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTILITY: _ Eagle Village COMMUNITY _ Eagle Village INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 PROJECT COST~ $ 29,900 * ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 GENERATION EFFUCIENCY (KWH Sold/Gal) Real Fuel Escalation Rate (%/Year) Base Case Bla 1989-1998 1.5 After Project 10.0 1999-2008 OKO LINE LOSSES(%). BASE YEAR ENERGY SALES? (KWH) Base Case 10 PCE Eligible 54 ,002 After Project 10 Not Eligible 0 TOTAL 54,002 ANNUAL GROWTH? (%) CURRENT PCE DATA 1989-2008 0 Rate (¢/KWH) ~ 41.80 — Fuel Price ($/Gal) ry Other Utility Costs ($/Yr) 23,292 QUTPUT SUMMARY Simple Payback (Years) FUEL PCE 4 SAVINGS SAVINGS 4 NA Cumulative Net Savings (Nominal $ Project Year FUEL PCE 1 8,900 0 1-5 45,900 0 1-10 95 ,200 0 1-20 197 ,000 0 The project cost includes $900 for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 3% over the past three years. Any future load growth would improve the economics of the project and reduce the number of years for payback. This utility qualifies for the maximum PCE rate and with the given assump- tions, would still qualify for the maximum rate after the project is _ completed. Consequently, the project would not result in a net PCE savings. 4796/833/10 Alaska Power Authority January 1989 Eagle Village Power house Note dangerous wiring. 7200V, 1 phase, 2W over- head distribution system to 2SkVA, 240V, 1 phase, 3W system Eagle Village 55 kW John Deere gener- ator is down for repairs. 30 kW John Deere generator. 200 Amp, double pole double throw disconnect switch & gen- erator control panels. No buss kWH or station service kWH meters. Summary: The existing overhead distribution is 4.16/2.4 kV, 3 phase, 4-wire. The substation consists of a substation transformer, which is a combination of 3 - 100 kVA distribution transformers and a 750 kVA pad mounted transformer. The existing generator building is in fair condition. There are 4 generators as follows: two 500 kW generators, one 600 kW and one 200 kW generator. A better security fence is needed around the substation. The wiring for the 200 kW and 500 kW Cat generator needs to be completed. Relocate service conductors to meet NEC. Recommendations: 1 LOY Provide better security for substation transformer, such as a new chain link fence. Fix the door and provide with a pad lock and post a sign to read: "Danger, high voltage-authorized personnel only." Overhead distribution at the substation is antique (approxi- mately 20 years old) and needs to be replaced. Service conductors to the power house require a minimum 3 foot clearance above the door. Relocate the existing service conductors. Generators 3 and 4: Need to have their wiring cémpleted. Equipment coverplates need to be installed. Install all unprotected wiring in conduit. Ground grid to be thoroughly inspected and bonded. Cleaning personnel need to be instructed on plant safety, and cautioned about exposed wiring. APA should provide technical help on the waste heat sale contract. "Train the operator" on how to most efficiently operate the power plant and on the proper use of plant logs to enhance preventative maintenance and tracking of parts costs, fuel and oil consumption. GEN2 CUMMIN 1710 1800 NO 00004.5 STAMFORT 500 YES YES GENS VILLAGE: FORT YUKON UTILITY: OWNERSHIP: CONTACT: NATE: 10/21/88 PHONE: POWERHOUSE INVENTORY GEN1 ENGINE MAKE............... CAT ENGINE MODEL.............. 3508 ENGINE RPM................ 1800 YEAR INSTALLED............ - LAST MAJOR OVERHAUL (HRS). NO CURRENT HOURS............. 11123.0 GENERATOR MAKE............ CAT GENERATOR CAPACITY (KW)... 600 GENERATOR VOLTAGE......... 480V PARALLEL SWITCHGEAR?..... . YES KWH METER (YES or NO)..... YES GEN4 ENGINE MAKE............... CAT ENGINE MODEL.............. 3412 ENGINE RMP................ 1800 YEAR INSTALLED............ - LAST MAJOR OVERHAUL (HRS). NO CURRENT HOURS............. - GENERATOR MAKE............ CAT GENERATOR CAPACITY (KW)... 500 GENERATOR VOLTAGE......... 480V “ARALLEL SWITCHGEAR?...... Y dH METER (YES or NO)..... Y POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... POWERHOUSE CLEANLINESS...... eeeee WASTE HEAT RECOVERY OPERATIONAL?. BUSS POWER METER?........... eeeee INDIVIDUAL GENSET METER?......... POWERHOUSE KWH METER?..........+. WASTE HEAT BTU METER?............ FIRE PROTECTION SYSTEM TYPE...... FIRE PROTECTION OPERATIONAL?..... LOAD DATA AVAILABLE? (KW DEMAND) . POWER HOUSE GENERAL NOTES: G-3 & 4 WERE STAND-BY. Auk WNPH NO PLANT LOGS WERE AVAILABLE. 7-8 HOURS DAILY POOR YES YES GWITCHYAA ZHFF GEN3 CAT 3432 1800 NO 00042.5 CAT 200 460V YES YES GEN6 YES, AMP/VOLT, FREQUENCY METER YES LOACTED IN NEXT ROOM NO, INST. FLOW METER & YOUNG SHELL SHELL 1 5# FIRE EXTINGUSHER N/A YES 1456x1000 KWH, 900 AMP, WIRING WAS NOT COMPLETED. ON G-3 & 4. WASTE HEAT RECOVERY OPERATIONAL: HEAT TO CITY & WATER PLANT. GENERATOR COVER PLATES ARE MISSING. DATA READINGS: BUSS POWER METER - 60HZ, 480V [LLAGE: FORT YUKON UTILITY: GWITCHYAA ZHFF OWNERSHIP: CONTACT: DATE: 10/21/88 PHONE: FACILITY INVENTORY METERED? REMETERED YES NO YES NO SINGLE FAMILY............. x MULTI FAMILY ............. x RESIDENTIAL HOUSING..... Bs COMMERCIAL FACILITY....... X COMMUNITY FACILITY........ X FUEL SYSTEM INVENTORY BULK STORAGE CAPACITY............. NO DIKED CONTAINMENT?........... rel NO LEAKS/CORROSION............ Teed No DAY TANK CAPACITY......... Sas tole YES, 3000 GAL. APPROX. DAY TANK DIKE...........-e0eeeeees No LEAKS/CORROSION........2000- ease NONE APPARENT DAY TANK METERED?............. aa NO POWER DISTRIBUTION SYSTEM “'OLTAGE/ PHASES YSTEM: OVERHEAD..........-. cesses 2400V, 3PH 4W UNDERGROUND.........0.002 N/A COMBINED SS see eee ones N/A LAID ON TUNDRA.......... .. N/A CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: CAPACITY... .. ccc eeeesveces PAD POLE VOLTAGE IN/OUT UNMETERED STREET LIGHTS: sewer eee wees GENERAL NOTES: EXISTING 2400V, OLD & SHOULD BE REPLACED REPAIRED. POWER HOUSE IS OLD, BROKEN WINDOWS, 3-100 KVA OIL FILLED N/A N/A 2400V/480V SUBSTATION ENCLOSURE IS NOT SECURE 3PH 4W OVERHEAD DIST. AT THE SUBSTATION IS VERY LEAKY ROOF AND SHOULD BE FUEL DELIVERY 2 TIMES PER WEEK. UTILITY USES DELIVERY TRUCKS CERTIFIED SALES FUEL METER INSTEAD OF A DAYTANK METER. | LOAD ANAYLYSIS - GWITCHYAA ZHEE UTILITIES (FORT YUKON) DATE: 10/25/88 \12 156600.0 14797.0 214.5 10.6 154200.0 12753.0 211.2 12.1 157350.0 12388.0 215.5 12. | =i [TOTAL 2370600.0 205773.0 | | 11 106200.0 15298.0 145.5 6.9 160800 .0 12620.0 220.3 12.7 131400.0 13560.0 180.0 oT | {2 132600.0 13664.0 181.6 9.7 153000.0 13684.0 209.6 11.2 150600.0 14410.0 206.3 10.5 | | 3 205200.0 16092.0 281.1 12.8 424200.0 17629.0 581.1 24.1 181200.0 15769.0 248.2 5: | 14 179400.0 17654.0 245.8 10.2 212100.0 16375.0 290.5 13.0 369000.0 12540.0 505.5 29.4 | [5 197400.0 20112.0 270.4 9.8 171800 .0 16401.0 235.3 10.5 522000.0 13695.0 715.1 38.1 | 16 240000.0 18185.0 328.8 13.2 259200.0 21793.0 355.1 11.9 155440.0 19733.0 212.9 i a | a7 236400.0 19308.0 323.8 12.2 175800.0 18716.0 240.8 9.4 219600.0 19000.0 300.8 “11.6 | | 8 295800.0 15115.0 405.2 19.6 222600.0 16829.0 304.9 13.2 204000.0 16670.0 279.5 12.2 | i? 218400.0 20358.0 299.2 10.7 175800.0 18716.0 240.8 9.4 209400.0 12744.0 286.8 16.4 | |10 225600 .0 18053.0 309.0 12.5 175200.0 15005.0 240.0 11.7 204600.0 15915.0 280.3 12.9 | }11 177000.0 17137.0 242.5 10.3 165600.0 13852.0 226.8 12.0 177347.0 18351.0 242.9 97 | Tal | | I 194373.0 2681937.0 184775.0 | AVERAGE 270.6 279.7 12.6 306.2 15.2 SES Comes OMOCS Se See ONS HS NEES OFRES 0.6.6.0 Cone aEOe SOC es HOSS 6 OC CWE CS | |GENERATOR SETS INSTALLED 600 KW 480 VOLT, 3-PHASE, 4-WIRE | | 500 KW 480 VOLT, 3-PHASE, 4-WIRE | | 200 KW 480 VOLT, 3-PHASE, 4-WIRE | | 500 KW 480 VOLT, 3-PHASE, 4-WIRE | |PEAK LOAD (KW) 405.2 581.1 715.1 |LOW LOAD (KW) 145.5 209.6 180.0 ] | |=== [AMPERAGE LOAD AT TIME OF INSPECTION WAS 900 AMPS. DEMAND LOAD CALCULATES TO 747.9 KW BASED ON THE 600 KW AND 500 KW | | GENERATOR SETS THAT WERE ON-LINE. | | | KWH Generated (Thousands) 600 500 400 + 300 + —_——— OCT = —= NOV DEC JAN FORT YUKON VILLAGE 4 FY °87 FEB -—— — MAR = APR FY °88 I MAY JUNE FORT YUKON Cost Estimate: oo Substation transformer enclosure. Door fixed as operator's duty $O New pad lock 50 Remove existing overhead distribution poles and associated devices at substation: Labor (30 hours @ $25/hour) Specify and install new pole(s) and combin- ation fuse cutouts/arrestor as required: Materials $16,000 Labor (160 hours @ $25/hour) 4,000 Relocate service conductor: Labor (20 hours @ $25/hour) $500 Materials (allow $1,500) 1,500 Install equipment coverplates as operator’s duty. Upgrade plant safety and ground grid. Labor (20 hours @ $25/hour) Train operators. (8 hours @ $25/hour) Engineering Costs (48 hours @ $32.50/hour). Travel and Per Diem Costs. APA Administrative Costs. SUBTOTAL Contingency (20%) TOTAL COST ESTIMATE ~ wu un °o ,000 ECONOMIC BENEFITS OF UPI TY Gwitchyaa Zhee INPUT RURAL UTILITY IMPROVEMENTS COMMUNITY Fort Yukon ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 PROJECT cost! $ 46,300 GENERATION EFFICIENCY (KWH Sold/Gal1) Base Case 10.9 After Project 10.9 LINE LOSSES(%), Base Case 28 ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 Real Fuel Escalation Rate (%/Year) 1989-1998 | 1999-2008 0.0 BASE YEAR ENERGY SALES“ (KWH) PCE Eligible 933,681 Not Eligible 745 ,852 TOTAL 1,679,533 CURRENT PCE DATA? ad Rate (¢/KWH) 18.32 Fuel Price ($/Gal) 1.26 Other Utility Costs ($/Yr) — 272,959 OUTPUT SUMMARY After Project 10 ANNUAL GROWTH? (%) 1989-2008 0 Simple Payback (Years) FUEL PCE SAVINGS SAVINGS NA NA Cumulative Net Savings (Nominal $ Project Year FUEL I 0 1-5 0 1-10 0 1-20 0 uv oo0oo |S m All costs related to this project are for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 11.6% over the past three years. 4796/833/12 Alaska Power Authority January 1989 Fort Yukon Day tank room. Fuel is delivered twice weekly by tank truck. Power house Substation enclosure is not secured, doors need repair and must be locked. Overhead wireway is not complete to the generator termination cabinets. Fort Yukon Example of incomplete generator wiring. Note: hot 480v when unit is on-line. Same for unit below. Equipment coverplate is not installed Switchgear, including generator panels, are almost new, and in ex- cellent condition. Fort Yukon 200 and 500 kW Cat gener- ator sets for stand-by use, ‘ missing cover plates. HUGHES Summary: The existing overhead distribution is 240/120V, 3 phase, 3-wire throughout the village. The existing generator building is a module package with a Halon fire protection system. The generator building is presently too close to the water plant and well. The generator building is in good condition. There are 2 generators. One is a 60 kW, and the other is a 80 kW generator. There is an small generator building with a 20 kW generator which is located next to the main generator building. Upgrade construction of the small generator building to provide one hour construction in accordance with NFPA 37. Rebalance village loads. Trade in the 80 kW generator for a 30 kW generator to better match the load and increase fuel efficiency. HUGHES Recommendations: 15S Install emergency lights in the powerhouse and generator building. Ru Install a 5 pound fire extinguisher in the generator building. 85 Upgrade construction of the generator building to provide one-hour construction in accordance with NFPA 37. Install a door knob and lock on the generator building to keep unautho- rized people out of the building. 4. The powerhouse is presently too close to the water plant and village well. The powerhouse or well needs to be relocated to avoid the possibility of contamination of the village water supply. os The owner requests Alaska Power Authority to provide technical assistance on testing the Halon fire alarm system. 6. Re-balance village loads to allow for more efficient use of generators. Te "Train the operator" on how to use the plant logs to enhance preventative maintenance, tracking parts costs, fuel and oil consumption. 8. Install a kWH meter for station service for the powerhouse. 9G Install equipment cover plate on main distribution panel. 10. Use the 20 kW generator for summer loads. 11. Trade in the 80 kW generator for a 30 kW generator to better match the winter loads and increase fuel efficiency. 12. Install all wiring in the generator building in conduit. VILLAGE: HUGHES UTILITY: HHUGHES VILLAGE UTL. OWNERSHIP: HUGHES CONTACT: JACK AMBROSE NATE: 11/14/88 PHONE: 889-2206 POWERHOUSE INVENTORY GEN1 GEN2 GEN3 ENGINE MAKE............... DETROIT DETROIT JOHN DEERE ENGINE MODEL.............. B9061CE BA9543CE B13857CI ENGINE RPM...........0000. 1800 1800 1800 YEAR INSTALLED............ 1981 1981 1983 (?) LAST MAJOR OVERHAUL (HRS). (1987) NO NO CURRENT HOURS............. 27229.4 32325.3 28160 GENERATOR MAKE......... ; CONDEC CONDEC CONDEC GENERATOR CAPACITY (KW)... 80 60 20 GENERATOR VOLTAGE......... 240V 3PH 240V 3PH 240V 3PH PARALLEL SWITCHGEAR?...... NO NO NO KWH METER (YES or NO)..... NO No NO GEN4 GENS GEN6 CURRENT HOURS........ ee eee GENERATOR CAPACITY (KW). GENERATOR VOLTAGE......... POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... 1 OR 2 TIMES DAILY » POWERHOUSE CLEANLINESS........... FAIR WASTE HEAT RECOVERY OPERATIONAL?. YES - LAUNDROMAT BUSS POWER METER?.......cccccccee NO INDIVIDUAL GENSET METER?......... YES POWERHOUSE KWH METER?..........-. YES WASTE HEAT BTU METER?............ NO FIRE PROTECTION SYSTEM TYPE...... FCI HALON 1301 CANISTER FIRE PROTECTION OPERATIONAL?..... YES LOAD DATA AVAILABLE? (KW DEMAND). YES - 41 X DEMAND FACTOR UNKNOWN POWER HOUSE GENERAL NOTES: 1. G-2 IS ON-LINE. LINE VOLTAGE: 240V, 20A, 75A, 60A, 61HZ. DEMAND LOAD: (45A) (240V) (1.73)= 18.7KW UNBALANCED LOAD. 2. POWERHOUSE IS A MODULE PACKAGE MADE BY EMERSON POWER CONTROL INC. METER READING 41 X DEMAND FACTOR. G-1 IS USED AS STANDBY MDP - SQUARE-D #HCM3262-6, 60A, MDP HAS 4 FEEDERS W/ METERS. G-3 IS LOCATED IN A WOODEN STRUCTURE ADJACENT TO POWERHOUSE. TRANSFER SWITCH 60A, 240VAC WH#XU322 DPDT FOR G-3, USE FOR SUMMER LOAD. 9. REPLACE 80 KW GENERATOR WITH A 30 KW UNIT TO BETTER MATCH THE LOAD CALCULATED 250VAC - 30" WORKING CLEARANCE. NaS LLAGE: HUGHES UTILITY: HUGHES VILLAGE UTL. OWNERSHIP: HUGHES CONTACT: JACK AMBROSE DATE: 11/14/88 PHONE: 889-2206 FACILITY INVENTORY METERED? REMETERED YES ; NO YES No SINGLE FAMILY............6. xX MULTI FAMILY ........... «- N RESIDENTIAL HOUSING....... xX COMMERCIAL FACILITY...... . xX COMMUNITY FACILITY........ xX FUEL SYSTEM INVENTORY BULK STORAGE CAPACITY............. 1 - 10,00 GAL. DIKED CONTAINMENT?......... Sadi YES W/ LINER LEAKS/CORROSION......... eter NONE APPARENT A DAY TANK CAPACITY........ AEE AERC CISEE YES DAY TANK DIKE........... Berea NO (LOACATED UNDERGROUND) LEAKS/CORROSION......... Ret ot eat tte NONE APPARENT DAY TANK METERED?............. Petey ES POWER DISTRIBUTION SYSTEM “-LTAGE/ PHASES _{STEM: OVERHEAD 1c 22 ioe ee wlaicle oni . 240V, 3PH, 3W UNDERGROUND....... Seer eee A COMBINED........... Ferhat N/A LAID ON TUNDRA....... N/A CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: CAPACITY...... Facbeth sete tad te ENA PAD oper Pee rote EEA POLE Settee Pett ee eEEEN A VOLTAGE IN/OUT............ N/A UNMETERED STREET LIGHTS: QUANT TY cassis ciersstomicrstartaieit ENO G RAL NOTES: 1. POWERHOUSE IS TOO CLOSE TO THE WATER PLANT AND WELL AND SHOULD BE RELOCATED. 2. REQUEST APA PROVIDE TECHNICAL ASSTANCE ON TESTING THE HALON SYSTEM. 3. POWER IS DISTRIBUTED @ 240V, 3PH, 3W THROUGHOUT THE VILLAGE WITH 120/240V, 1PH, 3-W AT VAROUS LOADS. 4. POWERHOUSE OPERATOR IS WILNER BEETUS. (889-2206) | |1 4631.0 1220.0 6.3 3.8 7595.0 1690.0 10.4 4.5 6000.0 1500.0 8.2 [2 12879.0 2590.0 17.6 5.0 9327.0 1830.0 12.8 5.1 7737.0 1550.0 10.6 13 11763.0 1980.0 16.1 5.9 9114.0 1280.0 12.5 A 11428.0 1450.0 15.7 14 9598.0 1680.0 13.1 5.7 11981.0 1650.0 16.4 7.3 13277.0 1800.0 18.2 [5 10881.0 1990.0 14.9 5.5 11120.0 1550.0 15.2 72 14199.0 2810.0 19.5 [6 12908.0 2270.0 17.7 5.7 11156.0 1590.0 15.3 7.0 16327.0 2680.0 22.4 (iz 11111.0 1810.0 15.2 6.1 11095.0 2030.0 15.2 5.5 13654.0 1990.0 18.7 [8 11249.0 2010.0 15.4 5.6 9216.0 1450.0 12.6 6.4 14733.0 1650.0 20.2 19 9850.0 1790.0 13.5 5.5 9834.0 1500.0 13.5 6.6 13215.0 1910.0 18.1 |10 10117.0 1630.0 13.9 6.2 9603.0 1550.0 13.2 6.2 13425.0 2220.0 18.4 [1 8969.0 1790.0 12.3 5.0 10104.0 1550.0 13.8 6.5 10868 .0 2030.0 14.9 [12 5529.0 1450.0 7.6 3.8 6523.0 1500.0 8.9 4.3 7089.0 1830.0 9.7 | Basesssssz ssssesezz 0 seess= seszzssz= oo seseeesss=z 00 szssessszosesss= senses 00 ==sssss=== == == ssesss [TOTAL © 119485.0 — 22210.0 116668.0 19170.0 141952.0 23420.0 [AVERAGE 13.6 5.3 13.3 6.1 16.2 6.1 | Pewee ewww ewe e www ewe c ewww cece cece cece cece cece cece cece c ccc cece ewww wee wwe ccc wwe www cc cence ccc c cece ecw cccc ccc ccc c cece cc cc ccc cccccce= |GENERATOR SETS INSTALLED 80 KW © 240 VOLT, 3-PHASE, 3-WIRE | 60 KW 240 VOLT, 3-PHASE, 3-WIRE | 20 KW 240 VOLT, 3-PHASE, 3-WIRE | Vea ceererss reer Ce aad face [YEAR FY 86 FY 87 FY 88 |nnnnn nena n nce e cence enn e ence eec nec cnn neeencenec ence neeneecnnncnnsccnsceensceesecesceenneceenenenncenecenscenneceesceeneseennneeee |PEAK LOAD (KW) 17.7 16.4 |LOw LOAD (KW) 6.3 8.9 Sesseeneezessszs: Se2eessszszsss |[=ssssssssessssssessesssssssssssssssss |AMPERAGE LOAD RECORDED AT THE TIME OF INSPECTION AS FOLLOWS: 20A, 75A, 60A AT 240V. THIS |BASED ON 60KW GENERATOR ON-LINE. THIS IS AN IMBALANCED LOAD. e@ OAD IS CALCULATED TO BE 18.7KW KWH Generated (Thousands) Sea arta Bee el eee eee es Lee eee | JULY AUG SEPT OCT NOV DEG JAN FEB MAR APR MAY JUNE HUGHES POWER & LIGHT o FY ‘86 1 RYRS87. ° SEY 88 Cost Estimate: de 10. iis IZ Las 14. HUGHES Install one emergency light in power- house and generator building. Labor (4 hours @ $25/hour) $100 Materials (allow $500) 500 Install 5 pound fire extinguisher in generator house. Upgrade generator building to one-hour construction. Relocate powerhouse - lump sun. Test Halon fire alarm system (8 hours @ $25/hour). Re-balance village loads (40 hours @ $25/hour). Train the operator (8 hours @ $25/day). Install a totalizing kWH meter. This is installed and maintained by Alaska Power Authority under separate funding; therefore, no cost estimate is provided. Install equipment cover plate on main distribution panel as operator's duty at no cost. Remove 80 kW generator and its associated devices. Labor (24 hours @ $25/hour) $600 Trade in for 30 kW generator. Labor (40 hours @ $25/hour) 1,000 Materials (allow $15,000) 15,000 Install conduit to protect wiring conduits. Labor (24 hours @ $25/hour) 600 Materials (allow $1,500) 1,500 Engineering Costs. (24 hours @ $32.50/hour) Travel and Per Diem Costs. APA Administrative Costs SUBTOTAL Contingency (20%) TOTAL COST ESTIMATE $600 @ 100 2,500 5,000 200 1,000 200 16,600 2,100 800 3,300 6,800 $39,200 _7,800 $47 ,000 ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTIL TRY: Hughes Power & Light COMMUNITY Hughes INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 PROJECT cost! $ 47,000 ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 GENERATION EFFSCIENCY (KWH Sold/Gal) Real Fuel Escalation Rate (%/Year) Base Case 538 1989-1998 Te After Project 10.0 1999-2008 0.0 LINE LOSSES(%), BASE YEAR ENERGY SALES? (KWH) Base Case 12 PCE Eligible 98 ,350 After Project 10 Not Eligible 26,607 TOTAL 124,957 ANNUAL GROWTH? (2) CURRENT PCE DATAS = 1989-2008 0 Rate (¢/KWH) 37.73 Fuel Price ($/Ga1) 1.54 Other Utility Costs ($/Yr) 27,627 QUTPUT SUMMARY Simple Payback (Years) FUEL PCE SAVINGS SAVINGS 4 3 Cumulative Net Savings (Nominal $ Project Year FUEL PCE 1 13,900 10 ,400 1-5 71,900 53,700 1-10 149 ,300 111,400 1-20 308 ,800 228 ,400 The project cost includes $10,850 for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. 3 Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 15.8% over the past three years. Any future load growth would improve the economics of the project and reduce the number of years for payback. 4796/833/13 Alaska Power Authority January 1989 ar t Hughes ~ Power house is module package. Distribution system 240v, 3 phase, 4 wire overhead. KWH meters for all feeders from module. ee Main panel load center fron cover missing, ex- posing hot bus. Hughes Halon fire protection panel. NIKOLAL Summary: The existing overhead distribution is 12.47/7.2 kv, 3 phase, 4-wire. The substation consists of3 - 37.5 kVA - 1 -47/7.2 kV 480/277V, 3 phase, 4-wire transformers mounted on an H-platform. There are 3 generators, each generator is housed in its own building. There is one 50 kW and two 75 kW generators. Upgrade the construction of generator buildings to provide one hour construc- tion accordance with NFPA 37. NIKOLAI Recommendations: Le Install a 5 pound fire extinguisher in each generator building and the electrical building. 2. Repair leaking front main seal for generator #2. 3) Install approximately six feet of flex conduit on exposed wiring between generator #2 and the underground conduit feeding the manual transfer switch. 4. Clean trash out of electrical room and install covers on the open panelboard and breakers. 5. Install door knob and lock on electrical building to keep unauthorized people out of the building. 6. Install a dike around the daytanks to contain fuel spills. 7. Install emergency lights in each generator building and the electrical building. 8. Upgrade construction of generator buildings to provide one-hour construction in accordance with NFPA 37. VILLAGE: NIKOLAI UTILITY: CITY OF NIKOLAI OWNERSHIP: CITY OF NIKOLAI CONTACT: ROGER JENKINS MATE: 11/09/88 PHONE: 293-2113 POWERHOUSE INVENTORY GEN1 GEN2 GEN3 ENGINE MAKE............... JOHN DEERE SOHN DEERE JOHN DEERE ENGINE MODEL.............. 4276TF 01 1211F 6466TF-00 ENGINE RPM..........0e000e 1800 1800 1200 YEAR INSTALLED............ 5YR APPROX 4YR APPROX 3YR APPROX LAST MAJOR OVERHAUL (HRS). NONE 2 YR 000.0 CURRENT HOURS. << oan<<5.<. ~ 224.1 398.5 9950.8 Q cexeraron MARES ccna . NEWAGE LIMA KATO (NEW) GENERATOR CAPACITY (KW) . 50 75 75 GENERATOR VOLTAGE......... 480V 3PH 480V 3PH 480V 3PH i PARALLEL SWITCHGEAR?...... NO NO NO KWH METER (YES or NO)..... NO NO NO GEN4 GEN5 GEN6 ENGINE MAKE............... ENGINE MODEL.............. ENGINE RMP... ones os owes s os ™~ i YEAR INSTALLED............ LAST MAJOR OVERHAUL (HRS). CURRENT HOURS....... ere GENERATOR MAKE....... erie GENERATOR CAPACITY (KW). GENERATOR VOLTAGE......... ~\RALLEL SWITCHGEAR?...... AH METER (YES or NO)..... POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... 3-4 HOURS POWERHOUSE CLEANLINESS.......... WASTE HEAT RECOVERY OPERATIONAL? . INDIVIDUAL GENSET METER?......... POWERHOUSE KWH METER?....... eeeee WASTE HEAT BTU METER?..........-. FIRE PROTECTION SYSTEM TYPE...... ~ FIRE PROTECTION OPERATIONAL?..... LOAD DATA AVAILABLE? (KW DEMAND). POWER HOUSE GENERAL NOTES: FAIRLY CLEAN YES. FOR CITY SHOP NEXT DOOR YES YES AMP/VOLT/FREQUENCY METER YES NO NONE N/A -63 X DEMAND FACTOR UNKNOWN 1. G-1 HAS OIL LEAK AT FRONT SEAL AND IS NOT BEING USED. G-1 IS ONLY LARGE ENOUGH TO CARRY SUMMER LOADS. 3. G-3 WAS RUNNING. OUTPUT DATA READING 75A, 480V, 60HZ. CALCULATED DEMAND LOAD = (75A) (480V) (1.73) (.9)=56.1KW 4. EACH GENERATOR IS HOUSED IN IT’S OWN BLDG. WITH A MANUAL TRANFER SWITCH TO BRING IT ON-LINE. ELECTRICAL SWITCHGEAR IS HOUSED IN A 4 SEPERATE BUILDING. CLLAGE: NIKOLAI UTILITY: CITY OF NIKOLAI UWNERSHIP: CITY OF NIKOLAI CONTACT: ROGER JENKINS DATE: 11/09/88 PHONE: 293-2113, 2412 FACILITY INVENTORY METERED? REMETERED YES ‘ NO YES NO SINGLE FAMILY............. x MULTI FAMILY ............. N/A RESIDENTIAL HOUSING....... X COMMERCIAL FACILITY....... X COMMUNITY FACILITY........ X Ys INVENTORY BULK STORAGE CAPACITY............. 55,360 GAL. DIKED CONTAINMENT?............ wee. YES LEAKS/CORROSION.........eeeeeeeeee NONE APPARENT = DAY TANK CAPACITY...........-00e0- 2 EA @ 500 GALLON DAY TANK DIKE.......... rere NO LEAKS/CORROSION........... .eeeeees NONE APPARENT DAY TANK METERED?............. wees NO PO DISTR ION SYS YOLTAGE/ PHASES ISTEM: OVERHEAD.......-0-eeeeeees OVERHEAD TO MOST OF VILLAGE UNDERGROUND.......-.-.000- U.G. TO SCHOOL AND SHOP @ 480V COMBINED..........eeeeeees N/A LAID ON TUNDRA............ N/A CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: CAPACITY.......eeeeee eeeee 112.5KVA (3-37.5KVA UNITS) PAD .ccceeeeeees cocccceee N/A POLE .....eeeereecvee «+e+. H-PLATFORM VOLTAGE IN/OUT....... eeeee 480V IN 7200/12470 OUT UNMETERED STREET LIGHTS: QUANITY.... ce eeececceces 16 GENERAL NOTES: 1. OVERHEAD DISTRIBUTION IS IN VERY GOOD SHAPE WITH ONLY MINOR PROBLEMS IN A COUPLE OF PLACES WITH TELEPHONE LOWER THAN SECONDARY POWER LINES. | LOAD ANAYLYSIS = - CITY OF NIKOLA DATE: 11/09/88 Peper tase canny ne eth A nan | | 11 12022.0 2400.0 16.5 5.0 15751.0 2494.0 21.6 6.3 14277.0 1050.0 13.6 2 13026.0 3000.0 17.8 4.3 17055 .0 2700.0 23.4 6.3 14241.0 1958.0 7-51 is 19077.0 4000.0 26.1 4.8 15489.0 2450.0 21.2 6.3 19983.0 1346.0 4.8 | [4 25219.0 4133.0 4.5 6.1 19752.0 2588.0 27.1 7.6 19521.0 2328.0 8.4 | [5 23370.0 4500.0 32.0 5.2 24331.0 1858.0 33.3 1321 25702 .0 2563.0 10.0 | [6 30909.0 4000.0 42.3 7.7 22648.0 1987.0 31.0 11.4 29942 .0 2285.0 13.1 | |7 28305 .0 4500.0 38.8 6.3 22253.0 2186.0 30.5 10.2 27553.0 2121.0 13.0 | [8 24741.0 3900.0 33.9 6.3 24890.0 2262.0 34.1 11.0 26564 .0 3091.0 8.6 | 19 24447.0 3910.0 33.5 6.3 22640.0 3456.0 31.0 6.6 21838.0 2349.0 “9.3 | [10 21739.0 3435.0 29.8 6.3 18875 .0 2772.0 25.9 6.8 20549.0 1382.0 4.9 | 11 18801.0 2971.0 25.8 6.3 18071.0 1023.0 24.8 17.7 16209.0 2146.0 7.6 |12 22068.0 3487.0 30.2 6.3 15917.0 1069.0 21.8 14.9 13556.0 1840.0 7.4 | Seeussesss seezzzszz assesses ==ssesst= oo EEEESSEES= 0 O=SEEEsse= osssss= =s==s= 0 =EEEEssz== ========= sssss= | | TOTAL 263724.0 44236.0 237672.0 26845 .0 249935 .0 24459.0 |GENERATOR SETS INSTALLED 75 KW 480 VOLT, 3-PHASE, 4-WIRE | 75 KW 480 VOLT, 3-PHASE, 4-WIRE | | 50 KW 480 VOLT, 3-PHASE, 4-WIRE [PEAK LOAD (KW) 34.1 41.0 |LOW LOAD (KW) 21.2 18.6 | seanssssss5s55s2es2s222ssessesss22s=22222225222=222225 [AMPERAGE LOAD RECORDED AT THE TIME OF INSPECTION AS FOLLOWS: 75A @ 480V. THIS DEMAND LOAD IS CALCULATED 56.1 KW BASED ON [ON A 75 KW GENERATOR ON-LINE, THE AMPERAGE LOAD RECORDED AND AN ASSUMED POWER FACTOR OF 90%. | KWH Generated (Thousands) 10 —____— JULY AUG — SEPT OCT ) FY “86 > —_——— = NOV DEC — JAN CITY OF NIKOLAI t FY ‘87 —- FEB MAR FY °88 a aap APR MAY JUNE NIKOLAI Cost Estimate: . : Provide and install 4 five-pound fire extinguishers. $400 2 Repair/replace leaking front. This is a maintenance item and, therefore, no cost estimate has been provided. 0 3b Install six feet of 2" flex conduit on generator feeder. Labor (6 hours @ $25/hour) $150 Materials (allow $200) 200 350 4. Clean up electrical building and install = cover plates as operator’s duty. 0 5s Install door knob and lock on electrical building. Labor (4 hours @ $25/hour) $100 Materials (allow $150) 150 250 6. Dike daytanks. Labor (16 hours @ $25/hour) $400 Materials (allow $2,000) 2,000 2,400 Te Install emergency lights in generator and electrical buildings (4 total). Labor (8 hours @ $25/hour) $200 Materials (allow $1,000) 1,000 1,200 8. Upgrade generator buildings to one-hour construction. 5,000 9. Engineering Costs (8 hours @ $32.50/hour). 300 10. Travel and Per Diem Costs. 1,400 11. APA Administrative Costs 1,200 SUBTOTAL $12,500 Contingency (20%) 2,500 TOTAL COST ESTIMATE $15,000 ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UT TE aTaYEs Nikolai Light & Power PROJECT IMPLEMENTATION YEAR: PROJECT cost! $ GENERATION EFFSCIENCY (KWH Sold/Ga1 ) 10.5 1055 Base Case After Project LINE LOSSES(%)» Base Case After Project ANNUAL GROWTH? (5) 1989-2008 Simple Payback (Years) 15 ,000 ayo COMMUNITY — Nikolai INPUT ASSUMPTIONS 1989 ECONOMIC PARAMETERS Real Discount Rate (°,) 4.5 Real Fuel Escalation Rate (%/Year) 1989-1998 18) 1999-2008 0.0 BASE YEAR ENERGY SALES? (KWH) PCE Eligible 172 ,038 Not Eligible — 76,767 TOTAL 248 ,805 CURRENT PCE DATA® 0 Rate (¢/KWH) 238018 Fuel Price ($/Gal) 1.53 Other Utility Costs ($/Yr) 45,613 OUTPUT SUMMARY FUEL PCE SAVINGS SAVINGS NA NA Cumulative Net Savings (Nominal $ Project Year FUEL PCE 1 0 0 1-5 0 0 1-10 0 0 1-20 0 0 All costs related to this project are for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. m1 Although no load growth is assumed for the purpose of this analysis, this utility has shown a decrease in growth of -5.5% over the past three years. 4796/833/14 Alaska Power Authority January 1989 Nikolai Platform mounted trans- former bank 480V, 3 phase, to 12.47kV, 3 phase, 4 wire overhead. 4 a 3 3 : i i hi CRAIG TRULIA Generator #2 John Deere, 75kw, 480v, 3 phase with unit mounted panel. Nikolai Power plant waste heat recovery system radiators and expansion tank lo- cated on generator #1 building. Power plant waste heat recovery heat exchanger located in generator #1 building. Fuel oil tank farm with capacity of 74,360 gallons. RAMPART Recommendations: | = The powerhouse is built directly on thawing permafrost and one corner is severely settling. The ground needs to be stabi- lized and the powerhouse leveled or a new powerhouse should be built (see item #3). Remove the existing 85 kW Cat generator (older model) and replace it with a new 50 kW diesel generator to better match the load and increase fuel efficiency. The powerhouse is presently located on top of the existing village well. The powerhouse should be relocated, or a new well should be drilled away from the powerhouse ss5e2re it will not be contaminated by fuel spills (See item #1). Alaska Power Authority should provide technical assistance to rebalance loads in the village. The school did not’ install diked containment for the school fuel storage tanks and spilled fuel may be contaminating the well. Install totalizing kWH demand meter, powerhouse meter, and an instantaneous kW meter. Provide a 5 pound fire extinguisher for the powerhouse. "Train the operator" on how to most efficiently operate the power plant and in the use of plant logs to enhance preven- tative maintenance, tracking parts costs, and fuel and oil consumption. RAMPART Summary: The existing overhead distribution is 208/120V, 3 phase, 4-wire throughout the entire village. The generator building is very congested. It is sinking at one end as it is placed directly on permafrost. There are 3 generators. Two are 85 kW units located inside the generator building. The third is a 50 kW unit housed in its own building located approximately 25 feet away from the main generator building. Trade in 85 kW generator for a 50 kW generator to better match the load and increase fuel efficiency. TILLAGE: RAMPART UTILITY: RAMPART VIL ELEC. SYS. OWNERSHIP: RAMPART CONTACT: DATE: 10/27/88 PHONE: FACILI INVENTORY METERED? REMETERED YES NO YES NO SINGLE) FAMILY (.)0 ooo) sic «sie 6 xX MULTE (RAMEY) | evo laicie)e oleic «6 N/A RESIDENTIAL HOUSING....... xX COMMERCIAL FACILITY....... xX COMMUNITY FACILITY........ x FUE Ys RY BULK STORAGE CAPACITY............-. 1 10,000 GAL, 4 7500 GAL DIKED CONTAINMENT?............ eoee COULD NOT VERIFY DUE TO SNOW LEAKS / CORROSION (.6 315) c.00 = sisie cle vise) NONE APPARENT DAY TAME CAPACITY s «ccs cicencas elie) le 0 YES 36"x60 RECTANGULAR (300 GALLON) DAY TANK, DIKEs005 sss00 506 fe. siieiie! «fel ies NO TRAE /SCORMOSIONs 6 betes ese cnmncesas NONE APPARENT ee i ee YES 3810 GALLON & 24.5 GALLON POWER DISTRIBUTION SYSTEM “"OLTAGE/ PHASES YSTEM: OVERHEAD.) «sci. s susie 5 /siele & 4 , 120/208V, 3PH, 4W UNDERGROUND..... slatelalelereleliele N/A COMBINED...... fs) elite, )\s116/ 1 eel\o le N/A LAID ON TUNDRA........... 3! | N/A CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: CAPAGCE TY 6 si ciciis)o sels) eo slstelieliele N/A PAD) | (le\c\6 sisisie eo she, ojeile!e leliolie N/A POLE | 6.5 «6 sic el disiieis aieils ei lelios - N/A VOLTAGE IN/OUT..... eocecee 208/208V UNMETERED STREET LIGHTS: QUANT TY 6 leiensile! «ise! o oeie ileliel'e © N/A GENERAL NOTES: 1. FUEL COMSUMPTION IS 72GAL/DAY PER ELEMER (POWERHOUSE OPERATOR) 2. POWERHOUSE IS VERY CONGESTED. VILLAGE: RAMPART UTILITY: RAMPART VIL. ENERGY OWNERSHIP: RAMPART CONTACT: “ATE: 10/24/88 PHONE: POWERHOUSE INVENTORY GEN1 GEN2 GEN3 ENGINE MAKE............... CAT CAT WAUKESHA ENGINE MODEL.............. 3219 3219 3068 ENGINE RPM.............00. 1800 1800 1200 YEAR INSTALLED............ - - - LAST MAJOR OVERHAUL (HRS). N/A N/A N/A CURRENT HOURS............. 14,000 14,000 12,243 GENERATOR MAKE............ CAT CAT KATO GENERATOR CAPACITY (KW)... 85/106.2 85/106.2 50/62.5 GENERATOR VOLTAGE..... 120/208V 3PH NO 102/208V 3PH NO 102/208V 3PH NO KWH METER (YES or NO).... YES YES YES GEN4 GEN5 GEN6 ENGINE MAKE.............-. ENGINE MODEL.............. _ ENGINE RMP...........-. fens YEAR INSTALLED........ eee LAST MAJOR OVERHAUL (HRS). CURRENT HOURS...........0. GENERATOR MAKE......... wee GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE......... ARALLEL SWITCHGEAR?...... «WH METER (YES or NO)..... POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... 1-2 TIMES DAILY POWERHOUSE CLEANLINESS........... POOR WASTE HEAT RECOVERY OPERATIONAL?. YES BUSS POWER METER?.............+-. YES INDIVIDUAL GENSET METER?......... YES AMP/VOLT/FREQUENCY METER POWERHOUSE KWH METER?........ wees NO WASTE HEAT BTU METER?............ NO FIRE PROTECTION SYSTEM TYPE...... N/A FIRE PROTECTION OPERATIONAL?..... N/A LOAD DATA AVAILABLE? (KW DEMAND). NO PLANT LOGS AVAILABLE POWER HOUSE GENERAL NOTES: 1. G-1 UNIT (NEAR WALL) IS STANDBY. 2. G-2 UNIT (NEAR DOUBLE DOOR): AMMETER: 50A, 120A, VOLTMETER: 105V; FREQ. METER: 59HZ. DATA READINGS: AB=217.5V, AN=126.2V, BN=125.7V, CN=127.7V @ 59.1HZ 3. G-3 IS LOACTED IN OTHER BLDG. APPROX. 25’ AWAY FROM POWERHOUSE. RAMPART VILLAGE BOUGHT IT FROM SCHOOL. 4. WORKING CLEARANCE IN FRONT OF PANEL & DISCONNECT SWITCH IS LESS THAN 3’ A=100A, B=100A, C=55A, PHASING IS OUT OF BALANCE. 100A; BC=219V, AC=202V KWH Generated (Thousands) o> -—_ be —~d>- JULY AUG'|)|/SEPT OCT NOV DEC JAN FEB MAR APR MAY No WO = NN AN DO © ~-—— RAMPART VILLAGE 1 FY “86 ' FY 87 ‘ PYSS: JUNE | | | | | | | | | 11 3718.0 951.0 5.1 329) 5181.0 885.0 7.1 Os) 5001.0 1270.0 6.9 3.9 | [2 14115.0 1405.0 19.3 10.0 6163.0 885.0 8.4 7.0 6201.0 1947.0 8.5 U4 | | 3 3150.0 1650.0 4.3 1.9 9200.0 1822.0 12.6 5.0 5012.0 1839.0 6.9 2277 al 14 11934.0 1682.0 16.3 7.1 10066 .0 2351.0 13.8 4.3 9432.0 2046.0 = 12.9 4.6 | [5 12243.0 1440.0 16.8 8.5 13518.0 1952.0 18.5 6.9 6980.0 1456.0 9.6 4.8 | 16 10562.0 1440.0 14.5 7.3 16728.0 1943.0 22.9 8.6 11365.0 2669.0 15.6 4.3 | |7 13562.0 1460.0 18.6 9.3 8954.0 2363.0 12.3 BB ccc esccce ceeeccees ceeeee ee eeee | [8 11860.0 1540.0 16.2 7.7 15855.0 1950.0 21.7 8.10 - | |9 13780.0 1475.0 18.9 9.3 15855.0 1635.0 21.7 9.7 - | |10 11103.0 2160.0 15.2 5.1 secccecsee ceeeceeee ceecee eeeeee | (1 4745.0 1538.0 6.5 3.1 - | [12 4739.0 1538.0 6.5 3.1 - | | Basssssss= scsascsz=z osasss= =s=sss=5= 0 ssssseeasz 00 =essssse= ssss== sss=== 00 ==== | [TOTAL =: 115511.0 = 18279.0 101520.0 15786.0 43991.0 11227.0 | [AVERAGE 13.2 6.4 15.5 6.6 10.0 3.9 | [epee ec nee flere etmiepaemarcr ea arn rae a inr | |GENERATOR SETS INSTALLED 85 KW 120/208 VOLT 3-PHASE, 4-WIRE | | 85 KW 120/208 VOLT 3-PHASE, 4-WIRE | | 50 KW = 120/208 VOLT 3-PHASE, 4-WIRE | | | enn Ce i ee eee | [YEAR FY 86 FY 87 FY 88 | | earner re eee | |PEAK LOAD (KW) 19.3 22.9 15.6 | [Low LOAD (KW) 4.3 7.1 6.9 | | =esseseseesesssasasesssssssssssssssssssessssssssessssssssessscsssssssssssessssessssesesssssesssses= | JAMPERAGE LOADS RECORDED AT THE TIME OF INSPECTION WERE: 100 AMP, 100 AMP, 55 AMP. THIS LOAD CALCULATES TO 30.6 KW WITH THE | |85 KW GENERATOR ON-LINE. THE ABOVE DATA INDICATES A PHASING IMBALANCE. | | | ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTILITY: Rampart Village COMMUNITY _ Rampart INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 PROJECT cost? $ 96,800 ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 GENERATION EFFSCIENCY (KWH Sold/Gal ) Real Fuel Escalation Rate (%/Year Base Case 4.3 1989-1998 1) After Project 10.0 1999-2008 0.0 LINE LOSSES(%), BASE YEAR ENERGY SALES¢ ( KWH) Base Case 12a PCE Eligible 128 ,359 After Project 10.0 Not Eligible 0 TOTAL 128 ,359 ANNUAL GROWTH? (%) CURRENT PCE pATA2 a 1989-2008 0 Rate (¢/KWH) 32.62 Fuel Price ($/Gal) 1.16 Other Utility Costs ($/Yr) 20,264 QUTPUT SUMMARY Simple Payback (Years) FUEL PCE SAVINGS SAVINGS 5 5 Cumulative Net Savings (Nominal $ Project Year FUEL PCE 1 20,100 19,100 1-5 103 ,500 98,300 1-10 215,000 204 ,200 1-20 444,600 422 ,400 The project cost includes $30,300 for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. 3 Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 7% over the past three years. Any future load growth would improve the economics of the project and reduce the number of years for payback. 4796/833/15 Alaska Power Authority January 1989 RAMPART Cost Estimate: — Remove existing 85 kW Cat generator (older model) and its as'sociated devices: Labor (24 hours @ $25/hour) $600 Specify and install a new 50 kW generator with generator controller (unit mounted), and other associated devices. 25,000 Labor (80 hours @ $25/hour) 2,000 $27,600 © Bn Rebalance loads in the village. Labor (40 hours @ $25/hour) $1,000 © ot Provide a 5 pound fire extinguisher. 100 ¢ 4. Train operators (8 hours @ $25/hour). | 200 / De Engineering Costs (160 hours @ 32.50/hour). 5,200 6. Travel and Per Diem Costs. 7,100 ie. APA Administrative Costs. 9,500 BASE COST ESTIMATE $50,700 ALTERNATE #1: Jack up the powerhouse and repair foundation and drill a new 200 foot deep water well and reconnect to system - Lump sun. 25,000 BASE BID PLUS ALTERNATE #1 $75,700 ALTERNATE #2: Build a new powerhouse away from existing well and reconnect to existing system - Lump sun. 30,000 BASE BID PLUS ALTERNATE #2 $80,700 Contingency (20%) 16,100 TOTAL COST ESTIMATE $96,800 Rampart Main distribution panels. Plant operator has no idea what feeds what or which meter reads which load. Major effort will be required to con- duct throrough inspection, make an as-built, and test metering. Rampart Powerhouse exterior. 85kw Caterpillar gener- ator sets. Plant is very crowded, oil soaked, and has melted permafrost enough that the engines are no longer level. Waste heat circulating pum providing heat to the school. Generator control panels. RUBY Recommendations: 1 L. 10. Th 12. Install kWH station service meter for the new (station service meter). The existing powerhouse is scheduled to be demolished. All reusable existing generators, main distribution panel and other associated equipment is to be relocated to the new powerhouse by January, 1989. Remove the 155 kW generator that is non functional from the powerhouse. There are two buss power meters mounted on the main distri- bution panel. Remove the unused buss power mete Install a current hour meter for the 90 kW and 155 kW genera- tors. Install a dike around the new daytank, which is installed in the new powerhouse, to contain fuel spills. Install and calibrate fuel meter on the input of the new daytank. Install an emergency light above the door in the new power- house. Install equipment cover plates. Ground grid to be thoroughly inspected and bonded. Assist the operator in setting up plant logs for the new powerhouse. Recommend that the existing 90 kW generator be used for summer loads. RUBY Summary: Qld generator building: . The existing overhead distribution is 12.47/7.2 kV, 3. phase, 4-wire. The substation consists of 3 - 50 kVA - 12.47/7.2 kv 480/277V, 3 phase, 4-wire distribution transformers (pole mounted) The generator building is hard to keep clean as the generators are on a gravel floor. There are two 155 kW and one 90 kW generators. The Owner plans to sell one of the 155 kW generators New generator building: The new generator building is a wooden structure, well insulated with a concrete floor. The substation consists of three new 250 kVA distribution transformers (on H-platforms) . A ge=' 3209 KW Gad generator is installed. The owner wants to buy anew 210 kW generator and relocate one 155 kW generator from the old generator building. Recommend that the 90 kW generator be relocated and used for summer loads. ILLAGE: RUBY UTILITY: RUBY ELEC. co. OWNERSHIP: RUBY VILLAGE CONTACT: DON HORNEA DATE: 12/07/88 PHONE: 468-4401 FACILI r R METERED? REMETERED YES NO YES NO SINGLE FAMILY............. xi MULTI FAMILY ............. N/A RESIDENTIAL HOUSING....... x COMMERCIAL FACILITY....... x COMMUNITY FACILITY........ xX FUEL SYSTEM INVENTORY LEAKS/CORROSION........ eee eeeee eee DAY TANK CAPACITY «2552.0. cecsssss DAY, ‘TANK .DERES «6 sicisi0 « 210 + oie ee esees ON Ss “"OLTAGE/ PHASES YSTEM: OVERHEAD. ........-2.00. oe UNDERGROUND. eeeee cere ceee COMBINED.......... eecccces LAID ON TUNDRA............ CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: POLE VOLTAGE IN/OUT. . 0) © sileile UNMETERED STREET LIGHTS: QUANITY......... ce ceeee ee GENERAL NOTES: * WHR IS INSTALLED. LARRY BRYANT POWERHOUSE OPERATOR LARRY STATES HE CAN INSTALL A DAY TANK METER ON SUPPLY LINE. ACCORDING TO LARRY, EXIST. BULK STORAGE TANK LOCATED OUTSIDE OLD POWERHOUSE IS TO BE LOCATED TO NEW POWERHOUSE. YES 700 GAL. EACH, SEE NOTE #2 YES NONE APPARENT 330 GAL NO NONE APPARENT YES 12470/7200V, 3PH, 4W N/A N/A N/A 2-250KVA, N/A ON H-PLATFORM 480/V,12470/7200 12470/7200/208V,3PH,4W 30 NEW STORAGE TANK RUBY RUBY VILLAGE 12/07/88 VILLAGE: OWNERSHIP: ATE! PHONE: POWERHOUSE INVENTORY GEN1 YEAR INSTALLED LAST MAJOR OVERHAUL (HRS). CURRENT HOURS GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE GEN4 CURRENT HOURS GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE PO! OUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... POWERHOUSE CLEANLINESS WASTE HEAT RECOVERY OPERATIONAL?. BUSS POWER METER?....... oe INDIVIDUAL POWERHOUSE WASTE HEAT BTU METER?.... FIRE PROTECTION SYSTEM TYPE FIRE PROTECTION OPERATIONAL?..... LOAD DATA AVAILABLE? (KW DEMAND). POWER HOUSE GENERAL NOTES: 1. NEW DISCONNECT SWITCH IS 400 AMP, 2. 3-250 KVA 7200/408V, 3PH, 3. seer - IN THE POWERHOUSE 4. UTILITY: CONTACT: 4W ON H-PLATFORM. OWNER HAS PLANNED TO BUY A NEW 210 KW & REUSE AN ESIT. RUBY ELEC. co. DON HORNEA 468-4401 GEN2 GEN3 CAT 3406 1800 DEC 1988 NEVER NEW CAT 300 480V, 3PH, 4W YES YES GENS GEN6 4 TIMES DAILY NEW BLDG. N/A YES YES AMP/VOLT/FREQ METER NO N/A FIRE EXTINGUSIHER N/A YES 3-POLE, 240V 155 KW NEW POWERHOUSE HAS CONCRETE FLOOR, CONCRETE PAD FOR EACH GENSET. ILLAGE: RUBY UTILITY: RUBY ELEC. Co. OWNERSHIP: RUBY VILLAGE CONTACT: DON HORNEA DATE: 12/07/88 PHONE: 468-4401 FACI T RY METERED? REMETERED YES NO YES NO SINGLE FAMILY............. X MULTI FAMILY ............. N/A RESIDENTIAL HOUSING....... X COMMERCIAL FACILITY....... xX COMMUNITY FACILITY........ X FUEL SYSTEM INVENTORY BULK STORAGE CAPACITY............. 1-7000 GALLON DIKED CONTAINMENT?..............0. YES LEAKS/CORROSION........... .seeeee. NONE APPARENT ; DAY TANK CAPACITY............ ..ee. NO DAY TANK DAY TANK DIKE..............00. wees) N/A LEAKS/CORROSION........-.0eeeeeees N/A DAY TANK METERED?........ en ae N/A POWER DISTRIBUTION SYSTEM “'OLTAGE/ PHASES YSTEM: OVERHEAD. .......0.ese00ee . 12470/7200V, 3PH, 4W UNDERGROUND............ wee) N/A COMBINED.............. ENA LAID ON TUNDRA............ N/A CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: CAPACITY els chic onciececle ... 3=-50KVA, 12470/7200/480V,3PH, 4W PAD > Ate g hes een N AA POLE ..... tel ad Ieee YES VOLTAGE IN/OUT......... we. 480/7200V UNMETERED STREET LIGHTS: QUANITY....... cc ccc cess 30 GENERAL NOTES: STAORAGE TANK OUTSIDE . LARRY BRYANT IS OPERATOR, PHONE: 468-4112wk, 468-4470 hn. di 2. OLD POWERHOUSE IS HARD TO KEEP CLEAN, GENSETS ON GRAVEL. 3 4 JIM EHRHART REQUESTS THAT APA SENDS COPY OF THIS REPORT TO RUBY VILLAGE COUNCIL. 5. EXIST. POWER POLES ARE NATIVE SPRUCE, PEELED & UNTREATED. POLES ARE ROTTEN AT BOTTOMS. THEY PLAN ON REPLACEMENT WHEN POSSIBLE. VILLAGE: RUBY UTILITY; RUBY BLEC. GO, OWNERSHIP: RUBY VILLAGE CONTACT: DON HORNEA DATE: 12/07/88 PHONE: 468-4401 POWERHOUSE INVENTORY GEN1 GEN2 GEN3 ENGINE (MAKE. © sao eee pos CAT CAT CAT ENGINE MODEL........se55%% 3306 3304 3306 ENGINE RPM....... 200000805 1800 1800 1800 VEAR! ENSTALGED,.\0 soi elses 1981 ' 1977 1981 LAST MAJOR OVERHAUL (HRS). YES CURRENT HOURS. o)6)ci06 ola so 3 REMOVED @ 7000 REMOVED @ 9000 INOP. +7000 GENERATOR MAKE............ CAT CAT CAT GENERATOR CAPACITY (KW)... 155 90 155 GENERATOR VOLTAGE......... 480 480, 3PH 40, 3PH PARALLEL SWITCHGEAR?...... YES YES YES KWH METER (YES or NO)..... YES YES YES GEN4 GEN5 GEN6 ENGINE MAKE............... ENGINE MODEL. 6:16 3: s1si6)6 5.0516 ENGINE RMP o 3 6.os.6 5 ecco 6 sisi 'e - YEAR) INSTALLED: | \c)s1s15 « «c+: LAST MAJOR OVERHAUL (HRS) « CURRENT HOURS............. GENERATOR MAKE. teeletelielolelekeyere 3 GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE........ P ™ARALLEL SWITCHGEAR?...... H METER (YES or NO)..... POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... 4 TIMES DAILY POWERHOUSE CLEANLINESS........... FAIR - OLD BLDG. SEE NOTE #8 WASTE HEAT RECOVERY OPERATIONAL?. NOT OPERATED BUSS POWER METER?.............0-. YES 9034x120 KWH /974x120 KWH INDIVIDUAL GENSET METER? axel ssa aie YES AMP/VOLT/FREQ METER POWERHOUSE KWH METER?......... eine NO WASTE HEAT BTU METER?............ NO FIRE PROTECTION SYSTEM TYPE. are FIRE EXTINGUSIHER FIRE PROTECTION OPERATIONAL?..... N/A LOAD DATA AVAILABLE? (KW DEMAND). YES 974x120 KWH POWER HOUSE GENERAL NOTES: 1. WASTE HEAT IS DISCONNECTED. IT CAUSED TO MANY PROBLEMS. AS PER . OWNER. 2. OLD POWERHOUSE HAS WOODEN FLOOR. 3. LEFT METER GE#700X25G464 IS NOT USED. ABANDONED IN PLACE. RIGHT METER SANGAMO #55073310 IS IN OPERATION. 4. MDP - WH 400A,277/480V,3PH,,4W SWITCH NORMAL/EMERGENCY (150KW) 5. G-3 IS BROKEN DOWN, BUYING NEW. 6. G-1 ON-LINE: 124A, 130A, 124A, 480V, 59HZ. G-2 IS A REBUILT ENGINE, TO SMALL FOR LOADS, OWNER WANTS TO SELL . IT. G-1 TO BE RELOCATED TO NEW POWERHOUSE. 8. OLD POWER HOUSE TO BE DEMOLISHED. ALL EQUIPMENT TO BE RELOCATED = C f ? ——-—- -— : $ NOV DEC JAN FEB MAR APR MAY JUNI > ULY AUG SEPT OCT RUBY VILLAGE U FY “86 t FY °87 ° FY “88 | LOAD ANAYLYSIS = - CITY OF RUBY UTILITY DATE: 12/07/88 | we en ee ne ee eee ne nee ne enn nn nn eee ee nnn ee ee nn ee ee ne en nn ee ee ee ne ee ee ne eee ee eee eee | GENERATORS IN SERVICE - 155 KW, 90 KW & 155 KW [oor rece cece cee cece eee e ee eee eee eee te ee ee te eee ee ee ee eee eee | KWH GAL AVG KWH/ KWH GAL AVG = KWH/ KWH GAL AVG = KWH/ | FY 86 FUEL LOAD GAL FY 87 FUEL LOAD GAL FY 88 FUEL LOAD GAL [perez ree ene RE RUC SE re | | [1 43740.0 4226.0 59.9 10.4 41820.0 2990.0 57.3 14.0 46200.0 2781.0 63.3 16.6 | fe: 51840.0 5485.0 71.0 9.5 36600.0 3671.0 50.1 10.0 33360.0 3481.0 45.7 9.6 [3 39960 .0 5968.0 54.7 6.7 90041.0 5298.0 123.3 17.0 42888 .0 3207.0 58.8 13.4 [4 60511.0 4610.0 82.9 13.1 61200.0 6259.0 83.8 9.8 52920.0 5253.0 (2.5 10.1 [5 56009 .0 4007.0 76.7 14.0 57240.0 5278.0 78.4 10.8 48000.0 3970.0 65.8 12.1 | [6 66182 .0 3386.0 90.7 19.5 62760.0 5315.0 86.0 11.8 59148.0 5402.0 81.0 10.9 | 17 57178.0 8171.0 78.3 7.0 45600.0 5020.0 62.5 9.1 |8 58560.0 4706.0 80.2 12.4 50520.0 3984.0 69.2 12.7 | 19 43560.0 7185.0 59.7 6.1 49200.0 5535.0 67.4 8.9 | |10 57120.0 4762.0 78.2 12.0 44520.0 3712.0) 61.0) 12.0. 0 -------- 22 ween ener = ee eee ee eee | Ju 40560.0 5264.0 55.6 Ted 42240.0 4631.0 57.9 9.1 -- wee teeeee eee eeeeee reese | [12 41640.0 5998.0 57.0 6.9 34320.0 7537.0 47.0 4.6 40920.0 os | ssssssssss sssesssss sssss= sssssss25 00 sazsscsss=00 ssssassss 0 sassss sssss500 sss=5==== zssss= [TOTAL 616860.0 — 63768.0 616061.0 59230.0 323436.0 — 28485.0 | AVERAGE 70.4 10.4 70.3 10.8 [GENERATOR SETS INSTALLED 155 KW 480 VOLT, 3-PHASE, 4-WIRE | 90 KW 480 VOLT, 3-PHASE, 4-WIRE | 155 KW 480 VOLT, 3-PHASE, 4-WIRE | Jann eeceecc eee eccc eee eee c cece ee cc esc eee cence nrc eeec ence sn nena nen eeee eens ecceesneeseeeess neta eeceeesceeesceeeceesseeecceeeeseeee: | YEAR FY 86 FY 87 FY 88 ‘ |ovecccceececcceeenecccenenee ccc eee eee eeeeceenccsetececsssseececeeeseseeeneenseeeeneetenss cnetesccccccceeeeeeecseecerereesseeeeeee: |PEAK LOAD (KW) |LOW LOAD (KW) =easzsz: l= saseezes: |AMPERAGE LOAD RECORDED AT THE TIME OF INSPECTION AS FOLLOWS: JON A 155 KW GENERATOR ON-LINE. ACCORDING TO THE AMPERAGE LOAD RECORDED AND AN ASSUMED POWER FACTOR OF 90%. ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTILITY: Ruby Electric Company COMMUNITY Ruby INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 PROJECT COST~ $ 10,300 ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 GENERATION EFFICIENCY (KWH Sold/Gal) Real Fuel Escalation Rate (%/Year) Base Case 91.7 1989-1998 15 After Project 10.0 1999-2008 0.0 LINE LOSSES(%), BASE YEAR ENERGY SALES“ (KWH) Base Case 11 PCE Eligible 330 ,938 After Project 10 Not Eligible 184,999 TOTAL 515,937 ANNUAL GROWTH? (%) CURRENT PCE DATAC - 1989-2008 0 Rate (¢/KWH) 21.10 Fuel Price ($/Gal) 1.36 Other Utility Costs ($/Yr) 77,881 QUTPUT SUMMARY Simple Payback (Years) FUEL PCE SAVINGS SAVINGS 4 5 Cumulative Net Savings (Nominal $) Project Year FUEL PCE 1 3,400 2,100 1-5 17,400 10 ,600 1-10 36 ,200 22,000 1-20 74,800 45 ,600 The project cost includes $3,200 for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. 3 Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 1% over the past three years. Any future load growth would improve the economics of the project and reduce the number of years for payback. 4796/833/16 Alaska Power Authority January 1989 RUBY Cost Estimate: is 10. ds T2k Lis 14. Install a new station service KWH meter. Materials (allow $150) $150 Labor (10 hours @ $25/Hour) 250 Demolish existing powerhouse and relocate all reuseable equipment. This is work tha- as already been planned and budgeted; therefore, no cost estimate is provided. Remove 155 kW generator and its associated devices. > £ ro) oO Labor (32 hours @ $25/hour) 800 Remove one unused kWH meter (2 hours @ $25/hour). 50 Install hour meters on 2 generators. _ Materials (allow $300) $300 Labor (4 hours @ $25/hour) 100 400 Dike daytank. Materials (allow $1,000) _ $1,000 Labor ( 8 hours @ $25/hour) 200 1,200 Install and calibrate fuel meter. Materials (allow $250) $250 Labor (4 hours @ $25/hour) 100 350 Install emergency light. Materials (allow $250) $250 Labor (2 hours @ $25/hour) 50 300 Reinstall equipment cover platesa as operator’s duty. 0 Ground grid system for new powerhouse safety and equipment. Materials (allow $250) $250 Labor (8 hours @ $25/hour) 200 450 Help operator set up new plant logs (8 hours @ $25/hour). 200 Engineering Costs (8 hours @ $32.50/hour) 300 Travel and Per Diem Costs. 1,850 APA Administrative Costs. 2,300 SUBTOTAL $8,600 Contingency (20%) 1,700 TOTAL COST ESTIMATE $10, 300 Old powerhouse (outside) exterior meter is for the village. Generator control panel. Rear cover for generator termination cabinet is missing. Side cover missing - live 480V when operating. Engine is presently down for service. Ruby New powerhouse and 480V, 3 phase to 12.47 kV 3 phase 4 wire step-up transformer bank. New 300kW Caterpillar gener- ator in the new powerhouse. Existing 3-50 kva- 7200/480v, 3 phase 4-w dis- tribution transformers to provide power to old exist- ing powerhouse. Recommendations: de Powerhouse is new and needs to be completed. Qi Install equipment coverplates. By; Waste heat recovery system is not working properly incomplete state of installation and may need signed. The present design provides heat for water treatment plant and washeteria. 4. Trade the existing 125 kW Cat generator for anew 50 kw generator to provide better fuel consumption and power efficiency. The loads do not justify the 125 kW zenerators 55 The existing 55 kW Cat generator needs to be repaired and have its wiring completed. 6. Install totalizing kWH demand meter, powerhouse meter and an instantaneous kW meter. Us Provide a 5 pound extinguisher inside the power house. 8. "Train the operator" on how to most efficiently operate che power plant and in the use of plant logs to enhance preven- tative maintenance, tracking parts costs, fuel and oil consumption. STEVENS VILLAGE Summary : Overhead distribution is 208/120V, 3 chase, 4-wire. The generator building is new, but it is not comp. +. There are two 125 kW and one 55 kW generators. The 55 kW gen. xr is not operational. The waste heat recovery system is not workin; Decommend that the 125 kW generator be traded in for a 55 kW geners ~- and the existing 55 kW generator be repaired. -LLAGE: STEVENS OWNERSHIP: STEVENS DATE: 10/27/88 FACILITY R YES SINGLE FAMILY............. Xx MULTI FAMILY ............. N/A LEAKS/CORROSION.....-.cccccesscecs DAY TANK CAPACITY......cccccsscoes PO DIS ION SYS' ~LTAGE/ PHASES ~{STEM: LAID ON TUNDRA...... eeeeee CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: POLE ..... oer c reece ecrees VOLTAGE IN/OUT...... eeee UNMETERED STREET LIGHTS: QUANITY........ Si Sie sisi Selle) GENERAL NOTES: UTILITY: CONTACT: PHONE: METERED? STEVENS VIL. ELEC. SY. HERBERT SIMENS REMETERED NO ES NO YES YES NONE APPARENT —_ YES 100 GALLON NO NONE APPARENT YES, READS 51513 GALLON 480V, 3PH, 3W N/A N/A N/A N/A N/A N/A 208V/480V, 208V FEED TO SCHOOL N/A 1. 75KVA 208/480 3PH STEP UP DRY TYPE TRANFORMER FOR VILLAGE LOADS. VILLAGE: STEVENS UTILITY: STEVENS VIL. ELEC. OWNERSHIP: STEVENS CONTACT: HERBERT SIMENS “ATE: 10/27/88 PHONE: PO! OUSE INVENTORY GEN1 GEN2 GEN3 ENGINE) MARE. 2 3/3650 000 8556 CAT CAT CAT ENGINE MODEL, 5. 06 665635056 3304 3304 3304 ENGINE RPM... ...2eeccccees 1800 1800 1880 YEAR INSTALLED............ 1987 ‘ 1987 t LAST MAJOR OVERHAUL (HRS). N/A (A N/A CURRENT HOURS............. 04911.9 05084.0 - GENERATOR MAKE............ CAT CAT CAT GENERATOR CAPACITY (KW). 125 125/156 55/69 GENERATOR VOLTAGE......... 120/208 120/208 120/208 PARALLEL SWITCHGEAR?...... NO NO NO KWH METER (YES or NO). NO NO NO GEN4 GEN5 GEN6 ENGINE MAKE...........200.6 ENGINE MODEL.............. ENGINE RMP......cccccccce . aa YEAR INSTALLED........ eoee LAST MAJOR OVERHAUL (BR2) CURRENT HOURS....... oe ele GENERATOR MAKE......... tae GENERATOR CAPACITY = _ GENERATOR VOLTAGE. POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... POWERHOUSE CLEANLINESS........... NEW & CLEAN WASTE HEAT RECOVERY OPERATIONAL?. NOT WORKING BAD DESIGN BUSS POWER METER?............200- NO YES AMP/VOLT/FREQUENCY METER 1-2 TIMES DAILY POWERHOUSE KWH METER? sewer eer reece NO WASTE HEAT BTU METER?...........-. NO FIRE PROTECTION SYSTEM TYPE...... N/A FIRE PROTECTION OPERATIONAL?..... N/A LOAD DATA AVAILABLE? (KW DEMAND). PLANT LOGS NOT AVAILABLE POWER HOUSE GENERAL NOTES: 1. G-1 (NEAR DAY TANK) IS STAND-BY 2. G-3 (NEAR DOUBLE DOOR) IS NOT OPERATIONAL, IT DOES NOT HAVE CURRENT METER. NEED TO REPAIR. 3. G-2 (MIDDLE) IS ON-LINE. DATA READINGS: 210V, EQUIPMENT IS GROUNDED. POWERHOUSE CONSTRUCTION IS NOT COMPLETE. 4 53 6. MISSING EQIPMENT COVER PLATES FOR MDP. 7. EXTERIOR METER IS FOR SCHOOL. GE# 701X16G9, 120V 4W, VM-64-5 READS 126KWH x ? MULTIPLIER IS NOT INDICATED ON METER. 100A, 100A, 102A, 60H. KWH Generated (Thousands) IS l4 13 10 N na JULY i FY ‘86 —_-—-—— SEPT --+-- OcT | I I NOV DEC JAN STEVENS VILLAGE FY ‘87 FEB x \ \ My ‘fh ty I | MAR APR FY 838 Ai | MAY JUNI | |1 4569.0 1500.0 6.3 2938.0 1100.0 4.0 2.7 6735.0 1079.0 9.2 6.2 [2 10932.0 1500.0 15.0 2310.0 1150.0 3.2 2.0 5956.0 1125.0 8.2 5.3 [3 11073.0 1500.0 15.2 2307.0 1300.0 se 1.8 9578.0 1658.0 13.1 5.8 [4 10825 .0 1500.0 14.8 7860.0 900.0 10.8 8.7 8795.0 1834.0 12.0 4.8 15 10048 .0 1500.0 13.8 7241.0 950.0 99 7.6 14955 .0 2950.0 20.5 aed [6 6013.0 1500.0 8.2 7175.0 1000.0 9.8 Tez. 7617.0 2975.0 10.4 2.6 |7 9857.0 1400.0 13.5 8835.0 1580.0 12.1 5.6 11761.0 3335.0 16.1 55: [8 9196.0 1300.0 12.6 9782.0 1751.0 13.4 5.6 11875.0 2932.0 16.3 - 4.1 19 7428.0 1200.0 10.2 7654.0 1306.0 10.5 5.9 10915.0 2878.0 15.0 3.8 |10 6764.0 1150.0 9.3 8562.0 1564.0 11.7 5.5 8115.0 2835.0 11.1 2.9 ja 3915.0 1100.0 5.4 7892.0 1355.0 10.8 5.8 10751.0 3015.0 14.7 3.6 |12 eeccccccee cecccccee ceccee a 7651.0 1375.0 10.5 5.6 | wexsssssss 0 asassssa5 225525 f2sszzzez 0 zzarzzzaex 0 =ssczsse= s555c5 =sa555 00 ===: TOTAL 90620.0 15150.0 80207.0 15331.0 107053.0 26616.0 AVERAGE 10.3 5.4 9-2) 5.3 13:3 4.3 sat SETS INSTALLED 125 KW 120/208 VOLT 3-PHASE, 4-WIRE | 125 KW 120/208 VOLT 3-PHASE, 4-WIRE | 55 KW 120/208 VOLT 3-PHASE, 4-WIRE | |occeec cece cece cece ee cence ence e cc eec cece eeec cece ence ntt cert tees eeeceeee ences se eeeneeeeees cneecee este ee seeeeeeeeceeesceeeeceeeessces | YEAR FY 86 FY 87 FY 88 |ocncec ence eee e nce cence eee c eee ene ence ences encase nencesseeasceneneseenecensecnsennnscescecencccesecasccneseeeeeceenseeeeeeeee |PEAK LOAD (KW) 15.2 13.4 20.5 [LOW LOAD (KW) 5.4 3:2 8.2 | ==2s2sssssseasssssesssssssssssseesssssssssssssasesnssssesessssnssssssssssssssssassssessessss5s55=5 [AMPERAGE LOADS RECORDED AT THE TIME OF INSPECTION WERE: 100 AMP, 100 AMP,120 AMP. THIS LOAD CALCULATES TO 38.4 KW WITH THE |125 KW GENERATOR ON-LINE. THE DATA ABOVE INDICATES A PHASING BALANCE . ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTILITY: Stevens Village System COMMUNITY Stevens Village INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 PROJECT COST~ $ 24,200 ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 GENERATION EFFSCIENCY (KWH Sold/Gal ) Real Fuel Escalation Rate (%/Year) Base Case 3.5 1989-1998 16 After Project 10.0 1999-2008 0.0 LINE LOSSES(%), BASE YEAR ENERGY SALES? ( KWH) Base Case 12 PCE Eligible 68 ,406 After Project 10 Not Eligible 32,960 TOTAL 101 , 366 ANNUAL GROWTH? (%) CURRENT PCE DATA 1989-2008 0 Rate (¢/KWH) 29.18 Fuel Price ($/Gal) 91 Other Utility Costs ($/Yr) —13,430 OUTPUT SUMMARY Simple Payback (Years FUEL PCE SAVINGS SAVINGS 2 3 Cumulative Net Savings (Nominal $ Project Year FUEL PCE 1 17 ,400 11,100 1-5 89,500 57 ,400 1-10 185 ,900 119,200 1-20 384 ,400 246 ,500 The project cost includes $1,800 for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 15.4% over the past three years. Any future load growth would improve the economics of the project and reduce the number of years for payback. 4796/833/17 Alaska Power Authority inae ees Sao STEVENS VILLAGE Cost Estimate: dn 2. 10. alg Complete construction work (already funded). Install equipment coverplates as operator's duty. Redesign and make final connections of waste heat recovery system (40 hours @ $25/hour). Remove existing 125 kW Cat generator: Labor (24 hours @ $25/hour) $600 Trade 125 Cat generator for 50 kW Cat generator, generator controller (unit mounted), etc. (Assume credit for 125 kW generator covers cost of new unit). Labor (60 hours @ $25/hour) iLO) oo Repair existing 55 kW Cat generator. Alaska Power Authority is to install and maintain totalizing kWH demand meter using other funds. Install station service meter. Materials (allow $150) $150 Labor (4 hours @ $25/hour) 100 Provide a 5 pound fire extinguisher. Train the operator (8 hours @ $25/hour). Engineering Costs (64 hours @ $32.50/hour). Travel and Per Diem Costs. APA Administrative Costs. SUBTOTAL Contingency (20%) TOTAL COST ESTIMATE 2,100 @ 5,000 © 200 2,100 3,650 5,800 $20,200 4,000 $24,200 Well built exhaust thimbles, well ventilated. Stevens Generator disconnect switches. Cover plate missing from main power center panel live 120/208 3 phase. Plate style heat exchanger used for heat to the school (not yet in operation). Stevens Stevens powerhouse is new and not finished. Bulk storage tanks (7500 gal. each) with dike con- tainment. 125 kw Caterpillar generator sets. Stevens Air control chutes to direct radiator heat to outside hoods. Fuel oil meter. Day tanks. TAKOTNA Recommendations: Ls Provide combustion air to allow generators <0 breach properly. ee Install flexible fitting on exhaust pipe to isolate pipe from engine vibration. Be Install cover plates on generator circuit breakers. 4. Install emergency lighting in power plant. OF Relocate 20,000 gallon fuel tank and install dike around tank. 6; Install 25 kW generator to more efficiently supply summer loads. - hs Install hour meters on generators 2, 3 and 4. 8. Repair ammeter on generator #2. Or Upgrade distribution system to shorten runs of 120/240 v. 10. Repair bus kWH meter. Summarv: Overhead distribution is 480¥277V, 3 phase, 4-wire entire village. There are two 50 kW, one 85 kW generators. The generator building is in excellent a concrete floor and a 500 gallon inside daytank. meter is not working which need to be repaired. throughout the and one 25 kW condition with The buss power -LLAGE: TAKOTNA UTILITY: TAKOTNA COMM. UTIL. OWNERSHIP: TAKOTNA ASSOC. CONTACT: DICK NEWTON DATE: 11/10/88 PHONE: 298-2211, 2213 FACILITY INVENTORY METERED? REMETERED YES NO YES NO SINGLE FAMILY). ..60065535.. x MULTI FAMILY ............. N/A RESIDENTIAL HOUSING....... xX COMMERCIAL FACILITY....... x COMMUNITY FACILITY..... oiahe x s RY BULK STORAGE CAPACITY....... err 10,000 GALLON AND 20,000 GALLON DIKED CONTAINMENT?.............20% YES ON 10,000 GALLON TANK LEAKS/CORROSION............... Bile (6.9 NONE APPARENT DAY TANK CAPACITY..............00% 500 GALLON DAY TANK DIKE...........ce cee eeeee NO LEAKS/ CORROSION» 01010 « = sis 6 seme sos NONE APPARENT DAY TANK METERED?........ Bisnis Ssye ie ie YES POWER DISTRIBUTION SYSTEM “YLTAGE/ PHASES _{STEM: OVERHEADS 5 5.5 © « o010 10 0 000% 480V OVERHEAD UNDERGROUND.........200008 N/A COMBINED........ CSS HHA N/A LAID ON TUNDRA............ N/A CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: CAPACITY. .........00005 wee) N/A PAD ........ eee eeeeee .. N/A POLE 1... eee cee ee eee seeee N/A VOLTAGE IN/OUT..... seeeeee N/A UNMETERED STREET LIGHTS: QUANITY.......... eee eT G N : 1. POWER IS DISTRIBUTED AT 480V TO THREE STEP DOWN TRANSFORMERS SCATTERED THROUGHOUT THE VILLAGE WITH 120/240V DELIVERED AT VARIOUS LOADS. SOME 120/240V OVERHEAD RUNS ARE ESTIMATED TO BE IN EXCESS OF 1,000 FEET VILLAGE: OWNERSHIP: NATE: TAKOTNA TAKOTNA ASSOC. 11/10/88 POWERHOUSE INVENTORY CURRENT HOURS GENERATOR V CURRENT HOURS GENERATOR vi OLTAGE. OLTAGE POWERHOUSE GENERAL POWER GENERATION EFFICIENCY GENERATOR CAPACITY ms GENERATOR CAPACITY (KW)... UTILITY: TAKONA COMM. UTILITY CONTACT: DICK NEWTON PHONE: 298-2211, 2213 GEN1 GEN2 GEN3 DUETZ DUETZ DUETZ FL 413 R/FR F6L 912 F6L 912 1800 1800 1800 1985 NOV 1982 NOV 1982 N/A TOP END 87 N/A 1776.1 NO METER NO METER NEWAGE KATO KATO 85 50 50 480V 3PH 480V 3PH 480V 3PH NO NO NO NO NO NO GEN4 GEN5 GEN6 DUETZ F3L912 1800 = SPRING 89 UNKNOWN NO METER KATO 25 480V 3PH NO NO POWERHOUSE ATTENDED HOURS/DAYS... 2-3 HOURS DAILY POWERHOUSE CLEANLINESS........... VERY CLEAN WASTE HEAT RECOVERY OPERATIONAL?. NO WASTE HEAT - AIR COOLED ENGINES BUSS POWER METER?.........2-cc00% YES NOT WORKING INDIVIDUAL GENSET METER?. sees YES AMP/VOLT/FREQUENCY METER POWERHOUSE KWH METER?............ YES WASTE HEAT BTU METER?........ oe N/A FIRE PROTECTION SYSTEM TYPE.... 5LB. DRY CHEMICAL FIRE PROTECTION OPERATIONAL?..... YES LOAD DATA AVAILABLE? (KW DEMAND). NO POWER HOUSE GENERAL NOTES: 1. G-4 IS NOT ON-LINE, ANTICIPATED TO BE ON-LINE NEXT SPRING, AT THAT UPWM-s TIME G-1 WILL BE REMOVED. - G-2 AMMETER DOES NOT APPEAR TO BE OPERATIONAL. - G-4 PURCHASED FROM NIKOLAI WILL BE INSTALLED TO HANDLE SUMMER LOAD. G-2 WAS RUNNING, OUTPUT DATA READINGS: CALCULATED DEMAND LOAD 45A, 52A, 54A 480V 60HZ. = (54A) (480V) (1.73) (.9)=40.4KW KWH Generated (Thousands) a 24 22 20 18 16 14 12 I — i= > [ - [a2 1 I JULY AUG SEPT OCT NOV DEC JAN FEB MAR APR MAY JUNE = I I VILLAGE OF TAKOTNA U1 FY “86 t BYa87 © FY 88 | LOAD ANAYLYSIS - VILLAGE OF TAKOTWA DATE: 11/09/88 [ovr reece cece cette eee eee eee eee etter eee renee teen teen eee eee nent | KWH GAL AVG KWH/ KWH GAL AVG KWH/ KWH GAL AVG KWH/ | FY 86 FUEL LOAD GAL FY 87 FUEL LOAD GAL FY 88 FUEL LOAD GAL | tnt nn nen nn nen ee ee ee nee nn nn ne nnn nnn nnn eee nn nn nn nn en en en nn eet ene nen ee ee nee eee += 2-2 oe oe ee eee ee | }1 9628.0 1238.0 13.2 2B a eee 11182.0 1140.0 15.3 9.8 {2 12654.0 1377.0 17.3 9.2 16067 .0 1893.0 22.0 8.5 10137.0 1370.0 13.9 7.4 [3 15074 .0 1495.0 20.6 10.1 11011.0 1327.0 15.1 8.3 13689.0 1440.0 18.8 9.5 [4 19354 .0 1805.0 26.5 10.7 16542.0 1832.0 22.7 9.0 10852.0 1400.0 14.9 7.8 15 27415.0 2296.0 37.6 11.9 20040.0 2094.0 275 9.6 15890.0 1450.0 21.8 11.0 [6 26641.0 2443.0 36.5 10.9 19401.0 2114.0 ° 26.6 9.2 14805 .0 1800.0 20.3 8.2 |7 22261.0 1890.0 30.5 11.8 20653.0 2472.0 28.3 8.4 14688.0 1850.0 20.1 79 | 8 18827 .0 1670.0 25.8 11.3 20474.0 1885 .0 28.0 10.9 13296.0 1500.0 18.2 0 8.9 |9 21937.0 1527.0 30.1 14.4 18970.0 1692.0 26.0 11.2 13373.0 1750.0 18.3 7.6 [10 18300.0 1811.0 25.1 10.1 16406.0 1607.0 22.5 10.2 10416.0 1340.0 14.3 7.8 {1 13955 .0 1530.0 19.1 9.1 15624 .0 1548.0 21.4 10.1 9136.0 1270.0 12.5 aoe 12 10531.0 1530.0 14.4 6.9 10492 .0 1152.0 14.4 9.1 8680.0 1230.0 11.9 wt | Sassesssse oszzzaess= 25225 4s=s2eeee= 0 osesesszzze 0 ==EsEsE== osesez= o=ez=s= 0 ====: [ToTaL 216577.0 20612.0 185680 .0 19616.0 146144.0 17540.0 | AVERAGE 24.7 10.3 2t.2 8.7 16.7 ss || Senses ch aim eRe aa | [GENERATOR SETS INSTALLED 85 KW 480 VOLT, 3-PHASE, 4-WIRE | | 50 KW 480 VOLT, 3-PHASE, 4-WIRE | 50 KW 480 VOLT, 3-PHASE, 4-WIRE | 25 KW 480 VOLT, 3-PHASE, 4-WIRE beam FY 86 FY 87 FY 88 lan LOAD (KW) 37.6 28.3 21.8 Low LOAD (KW) 13.2 14.4 129 | | =sssssesseassnssasssasassssssssssssssssssacaasssssisssssssssssssssssssseessssassssessesss=5 | AMPERAGE LOAD RECORDED AT TIME OF INSPECTION AS FOLLOWS: 45A, 52A, 54A @ 480V. THIS LOAD IS CALCULATED TO BE 40.4 KW BASED ON A | |[SOKW GENERATOR THAT WAS ON-LINE, ACCORDING TO THE AMPERAGE LOAD RECORDED AND AN ASSUMED POWER FACTOR OF 90%. ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTILITY: Takotna Comm. Assoc. COMMUNITY Takotna INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 PROJECT cost! $ 13,100 ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 GENERATION EFFSCIENCY (KWH Sold/Gal) Real Fuel Escalation Rate (%/Year Base Case isd) 1989-1998 i After Project 10.0 1999-2008 0.0 LINE LOSSES(%), BASE YEAR ENERGY SALES? ( KWH) Base Case 22 PCE Eligible 116,921 After Project 10 Not Eligible 22,341 TOTAL 139,262 ANNUAL GROWTH? (%) CURRENT PCE DATA = 1989-2008 0 Rate (¢/KWH) 27.79 Fuel Price ($/Gal) ely Other Utility Costs ($/Yr) 325135 OUTPUT SUMMARY Simple Payback (Years) FUEL PCE SAVINGS SAVINGS 4 4 Cumulative Net Savings (Nominal $ Project Year FUEL PCE 1 4,300 3,400 1-5 22 ,000 17 ,600 1-10 45 ,700 36 ,500 1-20 94,600 75 ,400 The project cost includes $6,600 for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. Although no load growth is assumed for the purpose of this analysis, this utility has shown a decrease in growth of -32.5% over the past three years. i Any future load growth would improve the economics of the project and reduce the number of years for payback. 4796/833/18 Alaska Power Authority Taniianw 1020 TAKOTNA Cost Estimate: als Provide combustion for generators. Labor (8 hours @ $25/hour) $200 Materials (allow $200) 200 $400 as Install flexible pipe fittings on exhaust stack. Labor (12 hours @ $25/hour) $300 Materials (allow $500) 500 800 Bi. Install cover plates on generators as operator’s duties. 0 ae Install emergency lighting in power plant (4 total). Labor (8 hours @ $25/hour) $200 ee Materials (allow $1,000) 1,000 1,200 5. Relocate 20,000 gallon fuel tank and install dike. Labor (40 hours @ $25/hour) $1,000 Materials (allow $3,000) 3,000 4,000 6. Install 25 kW generator - This is work that has already been planned and budgeted; therefore, no cost estimate is provided. 0 as Install hour meters on generators 2, 3 and 4. Labor (6 hours @ $25/hour) $150 Materials (allow $300) 300 450 8. Repair ammeter on generator #2. Labor (2 hours @ $25/hour) $50 Materials (allow $150) 150 200 o; Upgrade distribution system - This is work that has already been planned and budgeted; therefore, no cost estimate is provided. 0 10. Repair buss kWH meter. Labor (4 hours @ $25/hour) $100 Materials (allow $200) 200 300 ll. Travel and Per Diem Costs. 2,450 12. APA Administrative Costs. 1,100 SUBTOTAL $10,900 Contingency (20%) 25200) TOTAL COST ESTIMATE $13,100 & Takotna Powerhouse - very clean and neat. Main breaker panel with aluminum interlock slide bar - only one unit at a time can be on line. Buss kwh meter. Powerhouse - 25kw genset to be installed spring of 1989. Takotna Some transformers need wiring cleaned-up. APA is working with with Takotna to upgrade the distribution system. Typical step down trans- former installation. 480V to 120/240V. Day tank. Powerhouse - generators #1, #2, #3 Recommendations: r Install emergency light in powerhouse. Upgrade construction of powerhouse ‘to prov construction in accordance with NFPA 37 Install non-combustible insulation and sheetmetal on the floor for a minimum of 12 inches around each engine in accordance with NFPA 37. Install a 5 pound fire extinguisher in the powerhouse. Calibrate fuel meter on daytank and provide correction factors based on temperature. ay Disconnect all unused street lights to save energy TELIDA Summary: Overhead distribution is 480, 2 phase, 3-wire. Generator building is log structure with wood floor which needs to be upgraded to provide one hour construction in accordance with NFPA 37. There is one 15 kW and one 35 kW generator. LLAGE: TELIDA UTILITY: TELIDA VILLAGE UTLITY OWNERSHIP: VIL. OF TELIDA CONTACT: STEVE ELUSKA DATE: 11/09/88 PHONE: 843-8115 FACILITY INVENTORY METERED? REMETERED YES NO YES NO SINGLE FAMILY............. xX MULTI FAMILY - N, RESIDENTIAL HOUSING....... x COMMERCIAL FACILITY....... xX COMMUNITY FACILITY..... coe xX FUEL SYSTEM INVENTORY LEAKS/CORROSION........-.5.00. eeee DAY TANK CAPACITY....... o) @; iia) 0) se eee DAY TANK DIKE........... © © llels\iile.6 © LEAKS/CORROSION.......-..eeeeeeees . DAY TANK METERED?....... eee erecees BUTION S ~YLTAGE/ PHASES -£STEM: LAID ON TUNDRA....... eeeee CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: POLE VOLTAGE IN/OUT......... UNMETERED STREET LIGHTS: eee eee meee cece eee. GENERAL NOTES: 1. PLANT BURNS APPROX 35 GAL/DAY WINTER, 12,000 GALLON UNDERGROUND NOT DIKED UNKNOWN 100 GALLON - NO NONE APPARENT YES. METER ACCURACY QUESTIONABLE OVERHEAD 480V, N/A N/A N/A 2PH NONE N/A N/A N/A N/A 28 GAL/DAY SUMMER 2. DISTRIBUTION SYSTEM IS 480V 2PH OVERHEAD USING TRIPLEX ON LOCALLY PROVIDED POLES. 3. ALL BUT ONE STREET LIGHT HAS HAD ITS LAMP REMOVED BY THE PLANT OPERATOR. VILLAGE: TELIDA UTILITY: TELIDA VILLAGE UTILITY OWNERSHIP: VIL. OF TELIDA CONTACT: STEVE ELUSKA MATE: 11/09/88 PHONE: 843-8115 POWERHOUSE INVENTORY GEN1 GEN2 GEN3 ENGINE) MAKE :)5 25 5/1. 4 woeic lors JOHN DEERE MWM MURPHY ENGINE MODELS As oiec 0 50) cy 10415 D327-2 25 HP ENGINE) RPM elie 1800 1800 YEAR INSTALLED............ 12/23/86 12/23/86 LAST MAJOR OVERHAUL (HRS). N/A N/A CURRENT HOURS............. 5723.5 5084.5 GENERATOR MAKE.......... .. LIMA STAMFORD GENERATOR CAPACITY (KW)... 35 15 GENERATOR VOLTAGE..... .... 480V 3PH 480V 3PH PARALLEL SWITCHGEAR?...... No NO KWH METER (YES or NO)..... NO NO GEN4 GENS GEN6 ENGINE MAKE..........-.26. YEAR INSTALLED............ LAST MAJOR OVERHAUL (HRS). CURRENT HOURS............- GENERATOR MAKE............ GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE......... POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... 2-4 HOURS DAILY POWERHOUSE CLEANLINESS..... sees RELATIVELY CLEAN WASTE HEAT RECOVERY OPERATIONAL?. NO WASTE HEAT BUSS POWER METER?.......2cccceceee YES INDIVIDUAL GENSET METER?......... YES AMP/VOLT/FREQUENCY METER POWERHOUSE KWH METER?............ YES RUN APPROX 39KWH/M WASTE HEAT BTU METER?..... ee eeeee N/A FIRE PROTECTION SYSTEM TYPE...... NONE FIRE PROTECTION OPERATIONAL?..... N/A LOAD DATA AVAILABLE? (KW DEMAND) . NO POWER HOUSE GENERAL NOTES: 1. G-1 IS CONNECTED SINGLE PHASE FOR A TOTAL CAPACITY OF 22KW. 2. G-1 WAS RUNNING, OUTPUT DATA READINGS: 10A, 7A, 500V, FREQ. METER WAS NOT WORKING. 3. CALCULATED DEMAND LOAD (10A) (500V) (.9)=4.5KW. 4. POWERHOUSE IS LOG STRUCTURE W/ WOOD FLOORS AND AN UNINSULATED CEILING. FLOOR HAD LUBRICATON OIL SPILLS AND IT WAS FAIRLY SLICK. KWH Generated (Thousands) 6 5 SL SM 4 _® aR | 3 & od 2 | O fp _—— oe —— TT — te JULY AUG SEPT OCT NOV DEC JAN FEB MAR TELIDA VILLAGE UTILITY () FY ‘86 t FY ‘87 ° FY 88 I APR I MAY JUNE | LOAD ANAYLYSIS = - TELIDA VILLAGE UTILITY DATE: 11/09/88 | wet tte enn nn ee en nnn ee en ee ee en nee nn ne nn ne ne en enn eee nn nn eee ee nn eee eee oe ee ee ee ee ee ee ee ee ee eee | GENERATORS IN SERVICE - 22 KW » 15 KW | ttt te ene nn ne eee ee en nnn ne nnn nn en nn en nn ne nn nn nn nn en en nn enn nee nnn nee ne ne ee ee ee ee ee ee ee ee ee ee ee ee eee ee | Kwa GAL AVG KWH/ KWH GAL AVG = KWH/ Kw GAL AVG = KWH/ | FY 86 FUEL = LOAD GAL FY 87 FUEL = LOAD GAL FY 88 FUEL LOAD GAL [rrr r errr ere c cece reece nn cee cen r ene eee cree eee rene nce n ee nec e rene nen enc etee cere wenn eee wenn nnn ee ee ee nnn n ne ece nent eee e eee e ee ne | }1 1769.0 568.0 2.4 3.1 J2 1679.0 620.0 2.3 2.7 [3 2874.0 510.0 3.9 5.6 14 3386.0 540.0 4.6 6.3 (is 3326.0 583.0 4.6 S37 | 6 3044.0 734.0 4.2 4.1 |7 3110.0 830.0 4.3 37 |= [8 2979.0 668.0 4.1 4.5 19 3810.0 533.0 5.2 7.1 2805.0 706.0 3.8 4.0 [10 3460.0 478.0 4.7 7.2 2915.0 698.0 4.0 4.2 {1 2049.0 467.0 2.8 4.4 3416.0 745.0 4.7 4.6 [12 1841.0 504.0 25 3.7 3002.0 631.0 4.1 6.8 -- | saasasssss oo sesxcuzexosenezz 0 s2zssas5=00 ssecsss22 00 =sssass220 222555 =5=555 00 == sas [TOTAL 20125.0 5892.0 34305.0 7833.0 39815.0 J AVERAGE 2.3 2.6 3.9 4.4 | eee re ne ee en ne nn en nn ee nn ee en er ee en ee en nn en nn en ee ne nee ee eee eee eee [GENERATOR SETS INSTALLED 22 KW = 480 VOLT, 3-PHASE, 4-WIRE | 15 KW = 480 VOLT, 3-PHASE, 4-WIRE | | | pS ra Fm es aS a tg al ne a ER STON oserpersepenpngn miei terior aret snare iera Be SES TWEE. SSS SAIS Reimer emmomin © mise [YEAR FY 86 FY 87 FY 88 | | emcee ccc ccc ccc cece ccc ccc ecw eww ccc ecw c ccc ccc cc esc cc ecw wee c ccc cc ccc wee c cee c cece www es - cee e esc c cece ce we cece eee e een nce c cece eee -- |PEAK LOAD (KW) 6.0 4.7 7.0 | [Low LOAD (KW) 2.0 2.3 4.1 | |-ss2eseseesnsccnssssssssssnsssesseesessssscsssesssseesssssesss2sees"552555552256= z22esse=se== | [AMPERAGE LOAD RECORDED AT THE TIME OF INSPECTION AS FOLLOWS: 10A, 7A @ 5O0V. THIS DEMAND LOAD IS CALCULATED 4.5 KW BASED | JOM A 22 KW GENERATOR ON-LINE, THE AMPERAGE LOAD RECORDED AND AN ASSUMED POWER FACTOR OF 90%. | ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTIEETYs Telida Village Utility CCMMUNITY Telida INPUT ASSUMPTIONS PROJECT IMPLEMENTATION YEAR: 1989 PROJECT cosT* $ _13,000 GENERATION EFFICIENCY (KWH Sold/Gal ) Base Case 4.7 After Project 10.0 LINE LOSSES(%)., Base Case 16 After Project 10 ANNUAL GROWTH? (2) 1989-2008 0 ECONOMIC PARAMETERS Real Discount Rate (%) 4.5 Real Fuel Escalation Rate (%/Year) 1989-1998 1.5 1999-2008 0.0 BASE YEAR ENERGY SALES? (KWH) PCE Eligible 31,325 Not Eligible 93765 TOTAL 47,050 CURRENT PCE DATA . Rate (¢/KWH) 41.80 Fuel Price ($/Gal) 2.54 Other Utility Costs ($/Yr) 1,680 OUTPUT SUMMARY Simple Payback (Years) FUEL PCE SAVINGS SAVINGS 2 2 Cumulative Net Savings (Nominal $ Project Year FUEL 1 12,200 1-5 62 ,800 1-10 130,400 1-20 269,800 PCE 6,700 32 ,500 62,000 118,300 The project cost includes $5,450 for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 13.8% over the past three years. Any future load growth would improve the economics of the project and reduce the number of years for payback. 4796/833/19 Alaska Power Authority January. 1989 TELIDA Cost Estimate: ae Install two emergency lights in powerhouse. Labor (4 hours @ $25/hour) Materials (allow $500) $100 500 Upgrade powerhouse to one-hour construction. Install insulation and sheetmetal on powerhouse floor. Labor (40 hours @ $25/hour) Materials (allow $750) Install a 5 pound fire extinguisher in power house. Calibrate or provide new fuel meter. Labor (6 hours @ $25/hour) Materials (allow $500) Disconnect all unused street Lights. Labor (6 hours @ $25/hour) Engineering Costs. Travel and Per Diem Costs. APA Administrative Costs SUBTOTAL Contingency (20%) TOTAL COST ESTIMATE $1,000 750 $150 500 iD 1, nm SiO; tm Sis nN QO ron S Oo oO °o oO 750 100 ov Ur Qo 150 300 ui uw oO 800 oO 000 “ae “UOT]IDOUUOD OdIA -1os Arurey opsurs yeordAy ‘1910 [ony asnoylemog *19]9W SuIzIye}0} sng “TROBYOIIMS BsNOyIOMOog eBplaL Telida Powerhouse generator #1 35kw, 3 phase, 480v connect 1 phase Powerhouse daytank and lube oil storage. Powerhouse generator #2 15kw. Iphase 480 volt. Pole mounted step down transformer (two of three). Telida Service drop to school gen- erator building. Recommendations: 7 aos 2% Install kWH meter for the powerhouse (station service) Install a 50 kW generator including unit mounted controller and a 150 Amp, 3-pole, 240 V main breaker in the new odower- house for summer loads. Install a 400 A, 3-pole, 240 V double pole, double c transfer switch for selecting either the 50 kW or 125 kW generators. Alaska Power Authority should provide technical assistant on how to most efficiently operate the generator. "Train the operator" on how to use the plant logs to enhance preventative maintenance, tracking parts costs, fuel and oil consumption. Provide a 5 pound fire extinguisher for each powerhouse. Summary: Overhead distribution is 12.47/7.2 kV, 3 phase, 4-wire. The substation consists of 3 - 25 kVA, 12.47/7.2kV - 240/120V, 3 phase, 4-wire distribution transformers (pole mounted). There are two generators. Each generator is housed in its own building. One is a 100 kW, and the other is a 125 kW. The 100 kW generator is not big enough to carry winter loads. The owner wants to trade it in for a new 125 kW generator. The owner also requests APA to specify a new SO kW generator for summer loads. LLAGE: VENETIE UTILITY: VENETIE VIL. ELECTRIC OWNERSHIP: VENETIE VIL. CONTACT: EDDIE FRANK DATE: 11/10/88 PHONE: 849-8413 (HM) FACI iE R METERED? REMETERED YES NO YES NO SINGLE) PAMIELY 6, 1/0)(<!'0 31 61-60) «ore Xs MULTI PAMELY, |) \eiieieic) o stekele) sterols N/A RESIDENTIAL HOUSING....... xX COMMERCIAL FACILITY...... * x COMMUNITY FACILITY........ xX FUEL SYSTEM INVENTORY BULK STORAGE CAPACITY......... pido 2-7500 GALLON EACH DIKED CONTAINMENT 2) :)c (<[6/01/:10 5 ¢'016 ssc 6 6 YES WITH METER LEAKS/CORROSION.......ccccccces sje NONE APPARENET DAY TANK CAPACITY. .......-.0008 alers 1-300 GALLON - DAY) |TANK) DIKE) :|<) 0) <01./-< «/sie110 6) eifelie| «1's CIdioiG NO LEAKS/CORROSION........ Good odo On NONE APPARENT DAY TANK METERED?........ aitettel stshelal ells NOT YET - WILL INSTALL POWER DISTRIBUTION SYSTEM “YLTAGE/ PHASES {STEM: OVERHEAD s)llsiclie 6s elise} o|ehe/eleleliele 12470/7200V, 3PH, 4W UNDERGROUND.......--eeeeee N/A COMBINED... ..ccccccece eoee NSA LAID ON TUNDRA............ N/A CONDITION OF DISTRIBUTION SYSTEM SUBSTAION TRANFORMER: CAPACITY sales es sire siee sloneiele || [3 =22SKVA | (7200/240V, PAD) ee INK BOLE ee Se atlas | YES VOLTAGE IN/OUT............- 240V,12470/7200, 3PH, 4W UNMETERED STREET LIGHTS: QUANITY..... Nee ratere MINA GENERAL NOTES: 1. G-2 IS TOO BIG FOR SUMMER LOAD. 2. PROVIDE A THIRD GENERATOR (30-50KW) FOR SUMMER LOAD ONLY. 3. OWNER REQUESTS TECHNICAL ASSISTANCE. WANTS MORE INFORMATION ON "CIRCUIT RIDER PROGRAM" OR GENERATOR TRAINING FOR THE FOR THE OPERATOR TO ATTEND. 4. OPERATOR IS JOHN FRANK. VILLAGE: VENETIE UTILITY: VENETIE VILLAGE ELEC. OWNERSHIP: VENETIE VILLAGE CONTACT: EDDIE FRANK NATE: 11/10/88 PHONE: 849-8413 (HM) POWERHOUSE INVENTORY GEN1 GEN2 GEN3 ENGINE MAKE............... CUMMINS ONAN ENGINE MODEL.............. LTA1OC 100DTC ENGINE RPM...............- 1800 1800 YEAR INSTALLED............ - = LAST MAJOR OVERHAUL (HRS). NO NO CURRENT HOURS............. 848.8 98972 GENERATOR MAKE............ MAGNA ONAN GENERATOR CAPACITY (KW)... 150 100 GENERATOR VOLTAGE......... 240V 3PH 240V 3PH PARALLEL SWITCHGEAR?...... No NO KWH METER (YES or NO)..... NO No GEN4 GENS GEN6 ENGINE RMP.......eeeeeeeee YEAR INSTALLED......... LAST MAJOR OVERHAUL (HRS) . CURRENT HOURS............. GENERATOR CAPACITY (KW)... GENERATOR VOLTAGE......... 4H METER (YES or NO). POWERHOUSE GENERAL POWER GENERATION EFFICIENCY ..... POWERHOUSE ATTENDED HOURS/DAYS... POWERHOUSE CLEANLINESS........... WASTE HEAT RECOVERY OPERATIONAL?. BUSS POWER METER?........2eccceee INDIVIDUAL GENSET METER?..... eoee POWERHOUSE KWH METER?........ eeee WASTE HEAT BTU METER?...........-- FIRE PROTECTION SYSTEM TYPE...... FIRE PROTECTION OPERATIONAL?..... LOAD DATA AVAILABLE? (KW DEMAND). POWER HOUSE GENERAL NOTES: 1. MANUAL CONTROL - 400A, 3-POLE, DISCONNECT SWITCH. CH #326UGH. 2. G-1 IS ON-LINE. DATA READINGS: 3. G-2 IS STAND-BY. VILLAGE AND SCHOOL AT SAME TIME. 215V, IT IS NOT LARGE ENOUGH TO PROVIDE POWER FOR 5 HOURS DAILY FAIR N/A YES YES AMP/VOLT/FREQUENCY METER NO NO N/A N/A 9209 X DEMAND FACTOR UNKNOWN 240V DOUBLE POLE-DOUBLE THROW 245A, 254A, 250A, 60HZ. 4. SCHOOL HAS ITS OWN GENERATOR FOR STANDBY 5. THERE ARE SPARE PARTS ON SITE FOR REPAIRING G-2 6. BUSS POWER METER KW DEMAND. GE #700X25G2: READS 9209 NO MULTIPLIER. KWH Generated (Thousands) 60 40 30 20 10 a => O ff} 4+) ~ ti} JULY AUG SEPT = OCT NOV DEC JAN FEB MAR APR VENETIE VILLAGE 1 FY ‘86 1 FY °87 ° FY ‘88 MAY ty JUNE | LOAD AWAYLYSIS = - VENETIE VILLAGE ELECTRIC UTILITY DATE: 11/10/88 | | ttt er ee een ee ne ne ee ee ne ee re ee een ee ne ee nn en ne ene nn re nn ee en ee ene eee ee ee nee eee eee eee eee eee eee eee eee eee eee Es | GENERATORS IN SERVICE - 150 KW, 100 KW | wt tet ee ee ee een ee nen ne ne ee enn ne ene ee nen ne enn nn nnn ee nn nn en nn ne ne ene eee ee eee eee ee ee ee ee ee ee ee eee eee ee ee eee eee | Kwa GAL AVG KWH Kw GAL AVG = KWH/ KWH GAL AVG KWH/ | FY 86 FUEL LOAD GAL FY 87 FUEL = LOAD GAL FY 88 FUEL = LOAD ca a a ooo aaa 2 St ne Sins cig oie iris Sue oeisea ines Sis SNS SE SER EITS Soe oom oS aS So Sas ie SEE Bee Se | | | [1 ceeeec cece cecccccee ceeeee ceeeeeeee ceeeeeeeee ceececece ceeeee scenes J 2 reeeeee ere ceceeccee ceeeee ceccereee teeeeeecee ceeeceece ceeeee ceeeee [3 35710.0 2380.0 48.9 15.0 [4 32050.0 2136.0 43.9 15.0 [5 51200.0 1990.0 70.1 25.7 | | 6 57600.0 4400.0 78.9 13.1 | %weeeeeecee ceveeccee seccee ceecccces cecetetees ccccceeee settee ceeees | 18 13200.0 339.0 18.1 38.9 19 38292.0 2700.0 52.5 14.2 [10 15708.0 3092.0 21.5 5.1 (11 13200.0 2729.0 18.1 4.8 12 15600.0 2691.0 21.4 5.8 | Sssassssss0 ssscsssz= osssess 0 sssessesz 0 ezuszzsssz 0 =szeesze= =ez=== 0 ==25== | | TOTAL 0.0 0.0 272560.0 22457.0 | [AVERAGE 0.0 0.0 31.100 11.5 | | we ew ne ee nn nn nn nn nn nn nn nn en ne nn nn nn ne ee ne ee ee eee enn ee ee ee eee eee ee nnn eee ee ee ee eee eee eee e+ --- [GENERATOR SETS INSTALLED 150 KW 120/208 VOLT, 3-PHASE, 4-WIRE | 100 KW 120/208 VOLT, 3-PHASE, 4-WIRE | [PEAK LOAD (KW) 0.0 [Low LOAD (KW) 0.0 | =sesessesssseessesessesssesesesesnsssssessssesesse55255 |AMPERAGE LOAD RECORDED AT THE TIME OF INSPECTION AS FOLLOWS: 245A, 245A, 250A @ 215V. THIS DEMAND LOAD IS CALCULATED TO BE 98KW [BASED ON THE 150KW CUMMINS GENERATOR THAT WAS ON-LINE. LOAD IS VERY WELL BALANCED. | ECONOMIC BENEFITS OF RURAL UTILITY IMPROVEMENTS UTILITY: _Venetie Village Electric INPUT ASSUMPTIONS COMMUNITY Venetie nanny PROJECT IMPLEMENTATION YEAR: 1989 PROJECT cosT* $ 44,200 GENERATION EFFICIENCY (KWH Sold/Gal ) ECONOMIC PARAMETERS Real Discount Rate (*) 4 Real Fuel Escalation Rate (*/Year 1 =D Base Case 7.0 1989-1998 5 After Project 10.0 1999-2008 0.0 LINE LOSSES(%), BASE YEAR ENERGY SALES“ (KWH) Base Case 10 PCE Eligible 147 ,484 After Project 10 Not Eligible 22,278 TOTAL 169,762 ANNUAL GROWTH? (%) CURRENT PCE DATA2 . 1989-2008 0 Rate (¢/KWH) 26.12 Fuel Price ($/Gal) 1.30 Other Utility Costs ($/Yr) 29 ,094 OUTPUT SUMMARY Simple Payback (Years) FUEL PCE SAVINGS SAVINGS 5 6 Cumulative Net Savings (Nominal $) Project Year FUEL 1 9,700 1-5 50,200 1-10 104,300 1-20 215,800 PCE 8,000 41,500 86 ,100 178,100 The project cost includes $1,500 for safety and code improvements that do not result in fuel or Power Cost Equalization (PCE) savings. 2 Data were obtained from latest Alaska Public Utilities Commission PCE rate determination whenever possible. Otherwise, analysis reflects FY88 PCE data. Any future load : Although no load growth is assumed for the purpose of this analysis, this utility has shown a growth of 1% over the past three years. growth would improve the economics of the project and reduce the number of years for payback. 4796/833/20 Alaska Power Authority January 1989 VENETIE Cost Estimate: ae Install station service kWH meter. Materials (allow $150) $150 Labor (4 hours @ $25/hour) 100 Install equipment ground - lump sum. Specify and install a new 50 kW diesel generator with unit mounted controller. Materials (allow $25,000) $25,000 Labor (80 hours @ $25/hour) 2,000 Train the operator. (8 hours @ $25/hour) Provide a 5 pound fire extinguisher for powerhouse. Engineering Costs. Travel and Per Diem Costs. APA Administrative Costs. SUBTOTAL Contingency (20%) TOTAL COST ESTIMATE 27,000 200 300 APA Pr m) > 7000 AFA nm 0 us 3,800 AFA $36, 800 ~ i oO oO $44, 200 tote ( APA 6,700 Venetie 12.47V, 3 phase 4w over- head distribution system throughout the village. Bulk storage tank (7,500 gal) with dike and liner in excellent condition. 100kw Onan generator is stand-by. A 150kw Cum- mins generator is prime for winter loads.