Electrical Power for Valdez and the Copper River Basin-1981

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CHAPTER IISUMMARYValdez and Glennallen, both served by Copper Valley Electric Association(CVEA), and the Alyeska Pipeline terminal in Valdez are all presentlysupplied from oil-fired electric generation. CVEA is currently into. construction of the l2-MW Solomon Gulch hydro project. Assumed projecton-line-dateis 1981. A l38-kV transmission line between Valdez andGlennallen is also assumed to be completed in 1981.This report dealt primarily with alternatives the Valdez/Glennallenareas have for meeting their electric power needs after full utilizationof Solomon Gulch. .The Valdez area and, toa lesser extent, the Glenallen area experiencedrapid growth during the Alyeska pipeline construction period of 1974 to1977.· The following table shows a summary of historical annual growthrates.ResidentialPeriod Growth (%)1970-1973 7.71973-1977 50.01977-1979 -9.4ValdezCommercial/IndustrialGrowth (%)3.438.2-3.91970-1973 15.91973-1977 24.01977-1979 -7.5Glennallen5.042.6-9.8Energy use per customer in 1979 was:Residential6,666 kWhValdezCommercial/Industrial62,350 kWhResidential4,708 kWhGlennallenCommercial/Industrial55,171 kWhCVEA retail rates for electric energy in 1979 were:(revenue per kWh)Residentiall2.7eValdezCommercial/Industrial10.geResidentiall4.leGlennallenCommercial/Industrial13.4eThe annual cost of generation in the CVEA area in 1979 averaged 8.le perkWh. Preliminary input from the utility indicates close to lOe/kWh in1980.3
It was found that there are considerable uncertainties in making loadforecasts for this area. For example, there are many questions onprecise timing and numbers of jobs associated with the construction andoperation of the State's Alaska Liquid Petroleum Company Refinery(ALPETCO) scheduled for Valdez. Because of such contingencies, bothValdez and Glennallen have potential for growth appreciably differentthan the assumed forecast. The basic forecast adopted was presented inthe CVEA Power Cost Study of January 1980. That forecast then wasextrapolated to year 2000 and adjustments made to reflect conservationand estimated additional loads during ALPETCO construction and operation.Future power requirements are estimated as follows:ValdezEnerSil (GWH) Demand (MW) caj2acityl/ (MW)Historical 1978 23.4 4.8 10.11979 23.0 4.2 10.11980 26.5 5.4 7.21985 48.0 9.8 13.11990 57.0 11.7 15.61993 63.0 12.9 17.22000 76.0 15.2 20.3GlennallenEnerSil (GWH) Demand (MW) CaEacityl/ (MW)Historical 1978 20.4 4.0 7.61979 18.5 3.5 7.61980 21.4 4.4 5.91985 29.5 5.8 7.71990 40.6 7.8 10.41993 49.2 9.2 12.32000 70.0 14.0 18.71./ Forecasted capacity is computed from peak demand + 75% (assumes25 % reserves).Various alternative power supply alternatives were considered as followonprojects after Solomon Gulch:1. Allison Creek2. Pressure reducing turbines (PRT's) in Alyeska Pipeline3. Interconnection of CVEA system with Railbelt power supplies4. Use of diesel generationLoad/resource and cost analysis were performed to compare the forecastedloads with the alternatives listed above. The load/resource resultsindicated:4
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E---~for-~-~and the Copper River B-
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SYLLABUSThe geographic area conside
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SOUTHCENTRAL RAILBELT AREA. ALASKAI
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INTRODUCTIONDue to continued growth
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The city of Valdez conducted enviro
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FIGURE I:HYDROPOWER STUDY AREAFOR V
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oard feet of hardwoods, half of whi
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VALDEZ
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ALYESKA PIPELINE TERMINAL
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Other Activities:Nonseasonal stable
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Table 3Historical Population of Val
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Transportation and Tourism:Detailed
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The following tables show the futur
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framework of the study authority an
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Nucl ear:Nuclear energy development
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lntertie:With the deciSlon by the C
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If the powerhouse were moved to jus
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CONSERVATION:Description:THE NONSTR
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TRANSMISSION INTERTIEDescription_:T
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impaired. As a result, standoy gene
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ALLISON LAKE
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From the time of pO\'Ier-on-line, o
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Technical services such as electron
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175150FIGURE: 2ENERGY DEMAND - REVI
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175150FIGURE: 4ENERGY - REVISED APA
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SYSTEMOF ACCOUNTSAccountsPlan AAll
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AccountsPlan A.All Diesel Generatio
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then be determined for the 100-year
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Comnents received from the city of
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FINALENVIRONMENTAL IMPACT STATEMENT
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LIST OF PRFPARERSNameExpert i seExp
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COMPARATIVE IMPACTS OF ALTERNATIVES
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AREAS OF CONTROVERSYTo date no spec
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COVER SHEETLIST OF PREPARERSFINAL E
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A. NEED FOR AND OBJECTIVES OF ACTIO
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alternative has been estimated to p
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slopes surrounding Allisorl Lake ar
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weir to the mouth, with the majorit
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expected to Allison Creek below All
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2. Biologicala. Vegetation:,r-.Hydr
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Waterfowl and water related birds f
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within the local community. The imp
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Cumulative impacts to the Port Vald
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Program-related issues. The Alaska
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13.10INDEXSubjectsAffected Environm
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APPENDIX AHYDROLOGYTABLE OF CONTENT
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snowfields and glacier areas on the
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AVERAGE MONTHLY PRECIPITATION(inche
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gages at Lowe River near Valdez, Lo
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were estimated based on Tonsina Riv
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'fUR r)c r ,-. n:c JA~ FEEl "'A~ AP
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--..,I-J--. -,-- - ----- - --TONS I
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ALLISON CREEKESTIMATED STREAMFLOW -
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APPENDIX BEXISTING SYSTEM ANDFUTURE
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IIHf{ODUCTIONThis section is devote
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FIGURE: B-1PRICE INCREASES OF DIESE
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Installed Generat.or Peak Energy fo
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90008000700060005000- 4000 ~..-:300
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Table 4VALDEZ-GLENNALLEN AREA UTILI
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As footnoted, the Alaska Power Admi
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201510CDI5.: ...:.T. .' !', ~. '.,
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SOLOMON HY I.IICU'-__'lOUIE 1-7 MlN
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, .. ,·.AYI.AG! fOWl. DlMANO WHit,
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The following is an excerpt from th
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Power Requirement Study (excerpt)GL
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APPENDIX CECONOMIC EVALUATION
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INTRODUCTIONThe purpose of this sec
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value of 66.92 mills/kWh. This figu
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FIGURE C-2: SOLOMON GULCH ALLISON L
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Er.Jployment Benefits Computation (
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energy would be fully utilized. As
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ECONOMIC EVALUATION OF HYDROPONER M
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ECONOMIC EV~LUATION OF HYDROPO~ER M
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------~-~ECONO~IC EVALUATION OF HYD
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ECONOMIC EVALUATION OF HYDROPO~ER M
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ECONO~IC EVALUATION OF HYDROPOwER M
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APPENDI X DPROJECT DESCRIPTION AND
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POWERHOUSETypeTRANSMISSION LINEVolt
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POWERHOUSETypeTRANSMISSION LINEVolt
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VALDEZ HYDROELECTRIC POWER PROJECTG
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turbine. The penstock would bifurca
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TABLE D-lSUMMARY COST ESTIMATEOCTOB
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TABLE 0-3DETAILED COST ESTIMATEVALD
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TABLE D- 3 (cont)Cost Unit Tota 1Ac
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TABL E D-4DETAILED COST ESTIMATEVAL
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TABLE D-4 (cont)Co st Unit Tota 1Ac
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, ..... ,..\ (I),;> "----f .'-.. -I
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"'~~TAPANDROCK TRAP1600.•. -~ "00
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CORPS OF ENGINEERSU. S. ARMY./f----
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APPENDIX EENVIRONMENTAL DATA
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TABLE 1ATEMPERATURE RECORDING OF AL
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TABLE 1A (cont)ALL! SON CREEK (cont
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TABLE 1A (cont)ALLISON CREEK (cont)
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ALLISON CREEK (cont)FEBRUARY HIGH L
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ALLISON CREEK (cant)TABLE lA (cant)
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TABLE 1A (cont)ALLISON CREEK (cont)
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TABLE 1A (cont)SOLOMON CREEK - HIGH
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TABLE 1A (cant)SOLOMON CREEK (cant)
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TABLE 1A (cont)SOLOMON CREEK (cont)
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TABLE lA (cont)SOLOMON CREEK (cont)
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TABLE 1A (cont)SOLOMON CREEK (cont)
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SOLOMON CREEK (cont)TABLE 1A (cont)
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TABLE 2ACalculated Flows of Allison
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TABLE 2BCalculated Flows of Allison
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TABLE 4AWater Quality Data of Allis
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TABLE 4A (cont)PARAMETERCalciumMagn
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TABLE 4A (cont)PARAMETERTurb i d it
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TABLE 4A (cont)PARAMETERTurb i d it
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TABLE 4BALLISON LAKEWA TER QUALI TV
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TABLE 6BIRDS OF THE PORT VALDEZ ARE
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Oregon JuncoTree SparrowWhite-crown
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UNITED STf-lrESDEPARTMENT OF THE IN
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c. Effects on Benthos: The proposed
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An ecological evalu~)tion as requir
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JAY S. HAMMO~D. GOVERNORDEPARTMENr
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CULTURAL RESOURCESAboriginal Settin
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shorp--probablv to facilitate easie
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Today the Alyeska oil terminal enco
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APPENDIX GFOUNDATIONS AND MATERIALS
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100 psi pressure at depth. The sour
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-1'~~ ·/~-IU-'J\·-----'~r-.-;-,~
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~UMi'.'j~'~Y!lfGIOL~ N ..--Pa.w'rln
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; ;; Ii; Z II;;; II til, ;;; : i;;
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Valdez InterimSouthcentral Railbelt
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LIST OF FIGURES AND TABLESPageFigur
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-----------------------------------
Page 254 and 255: -~~ ~..rt~i~;Valdez Interim ReportS
Page 256 and 257: alder, salmonberry, blueberry, and
Page 258 and 259: Table IIPrince William Sound Salmon
Page 260 and 261: 3/ 4/ 5/- - -1976 Average weights b
Page 262 and 263: the number of pink salmon counted i
Page 264 and 265: in the fall at the upper end of the
Page 266 and 267: Table 1 VAllison Creek -Discharge M
Page 268 and 269: outlet from the lake; however, the
Page 270 and 271: As stated previously, two alternati
Page 272 and 273: Discharge measurements are sparse a
Page 274 and 275: Streambed sedimentation can be caus
Page 276 and 277: 8. That during the construction pha
Page 278 and 279: LITERATURE CITEDBailey, Jack E., an
Page 280 and 281: Sharp-shinned hawk - Accipiter stri
Page 282 and 283: Allison ereekTemperature DataDateTe
Page 284 and 285: ALLISON CREEKSeptember 1979 . Octob
Page 286 and 287: ALLISON CREEKDecember 1979 Januarl
Page 288 and 289: SOLOMON. CREEKSeEtember 1979 Octobe
Page 290 and 291: 7. That clearing for the penstock c
Page 292 and 293: 22. That a cooperative study of the
Page 294 and 295: APPENDIX IMARKETABILITY REPORT
Page 296 and 297: Department Of EnergyAlaska Power Ad
Page 298 and 299: Valdez/Glennallen Power Market Anal
Page 300 and 301: List of·Tab1esTableIII-1IV-1IV-2V-
Page 302 and 303: Valdez/Glennallen Power Market Anal
Page 306 and 307: A. Assuming Allison Creek follows S
Page 308 and 309: CHAPTER IIIPOWER MARKET DESCRIPTION
Page 310 and 311: increases. Municipal construction h
Page 312 and 313: CHAPTER IVEXISTING POWER SYSTEMSSys
Page 314 and 315: TABLE IV-1HISTORICAL LOADS--VALDEZ
Page 316 and 317: Load FactorsThe following chart lis
Page 318 and 319: CHAPTER VFUTURE POWER AND ENERGY AS
Page 320 and 321: Table V-IVALDEZ/GLENNALLEN AREA UTI
Page 322 and 323: Table V-2INSTALLED CAPACITY REQUIRE
Page 324 and 325: CHAPTER VI .ALTERNATIVE GENERATION
Page 326 and 327: Biomass-FiredAlthough of many forms
Page 328 and 329: A Solomon Gulch article in the Dece
Page 330 and 331: Net EnergyThis section discusses th
Page 332 and 333: Table VII-2Valdez/Glennallen Foreca
Page 334 and 335: 40VALDEZ/GLENNALLENCAPACITY/RESOURC
Page 336 and 337: 150Figure VII-3140VALDEZ/GLENNALLEN
Page 338 and 339: 150·Figure VII-5140VALDEZ/GLENNALL
Page 340 and 341: TABLE VIII-IASummary Cost EstimateO
Page 342 and 343: TABLE VIII-2Summary Cost EstimatePr
Page 344 and 345: Table VIII-3AAverage Rate Determina
Page 346 and 347: Table VIII-4CVEA Diesel Generation
Page 348 and 349: Table VIII-5Average Rate Comparison
Page 350 and 351: Table VIII-6Average Rate Determinat
Page 352 and 353: Table VIII-8Average Rate Determinat
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Table VIII-IOAverage Rate Determina
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----~------T'lble VIII-J 1Average R
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CHAPTER IXBIBLIOGRAPHY1. Power Cost
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: I,B'III Ii ::1: iii,APPENDIX JPUB
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Recipents of Valdez Draft Interim f
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u. s. ENVIRONMENTAL PROTECTION AGEN
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25. ~e str?ngly recOTmend that an a
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UNITED STATES DEPARTMENT OF CO!'!ME
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3. have adequate flows for flushing
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Cnitc:d Srat6 [)c'~,artmcnt of the:
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AdvisoryCouncil OnHistoricPreservat
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Corps Of Engineers - 2 -11/4/80Than
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-2-'2. Most of the State 1 and enco
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-~-The SCH has no objection to this
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ALASKA POWER AUTHORITY333 WEST 4th
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Electrical Power for Valdez and the Copper River Basin-1981

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