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HomeMy WebLinkAboutElectrical Generation Alternatives for Port Lions, Alaska Findings and Rec 1982I KOD-P 002 LIBRARY COPY .. , '••. . . ELECTRICAL GENERATION ALTERNATIVES FOR PORT LIONS, ALASKA FINDINGS AND RECOMMENDATIONS PROPERTY OF: Alaska Power Authority 334 W. 5th Ave. Anchorage, Alaska 99501 January 1982 II ----------------- ~ ! ~ f 0 ... 0 IU ::I Ill p... !!l I ON oo :::.0::0 B J: !:: :::1! Ill J: !2 J: IU ... c 0 AI.~ASiiA t•O\VI~It AU1'liOitiTY Bl\c::I<GROGl'JD FINDINGS AND RECO:tv11v!FNDA'l'IONS Electricc=tl Generating Alternatives Port Lions, Alaska ,January 1982 The City of Port Lions is a Sl1'1Cill, predominately Alaskan native, coastal village. It is situated on the shore of Settler Cove in Kizhuyak Bay, at the north end of Kooiak Island in the Gulf Alaska. Port Lions approximately 19 miles west northwesterly the Citv KcxUak at a geodetic p:>sition longitude 152° 53' west and latitude 57° 52' north. On Gcxx1 Friday, Harch 27, 1964, an earthquake with a rragnitudc of 8. 4 on t.he Richter sea 1e and the Tsunami wave it qenerated, partial destroyed the native village of Afognak, on Afognak Island. The residents ·their village site and relocated to a new area which hecarre the City of Port Lions. Port Lions is horne for approxinBtely 60 faroilies and had a ropulation of 227 people in 1979. Port Lions is a second class citv v'lith a Mavor-council form of gover:nJTlent provic'les a n'lJili:)er of to the cortYTllmity, water and sewer , protection, road rraintenance, public safety, administrative services. The Kodiak Island Borough School District provides an education system for grades K-12. The Borough planning, parks, recreation services and education. Port is accessible only by and sea travel. There are approxinBtP.ly four miles of state highway which extends from the city dock at Port Wakefield, on the peninsula east of the Ci , around the southerly end Settler Cove and through the to State otmed, city-operated airport. A 2600 foot airstrip located northeast of Port Lions wi tJ1 Kodiak Western AJ Airlines, Inc. providing daily flights, weather permitting, from Kodiak. The city dock has about 16,000 square feet of usable surface area and the has 800 linear feP.t of moorage space. The dock used by the State ferry M. V. Tustemena of the Alaska t-1arine Hiqhway SystPm for. twice weeklv caJ l service. The dock also --- rroorage for Chevron' s tanker, the Alaska Standard, when delivering fuel. The economy of Port Lions is largely dependent upon fishing and fish processing. Of major iillfXlrtance to the local 12 vessel fleet the harvesting of crab and salmon, and to a lesser degree, halibut. The fleet provides emplovment to 50-60 J':')COple for varying periods of from 3 to 9 nine months a year. The Wakefield Fisheries processing plant which went into operation in 1968, was the major source of employment until it burned in Jl1arch, 1975. A. floating processor was operateci during 1976 and 1977 by the Port Lions Native Co:rp:>ration, an Alaska Native Claims Settlement. Act (ANCSA) corp::>ration of the native residents of Port Lions. The floater was sold and removed from the corrmmi ty thereby . . eliminating local employrrent in the seafood processing industry. A private firm purchased the and returned it to Port Lions for several months but has again relocated the facility to another location. Unemplo:vment a substantial problem in Port Lions and after the removal of the floating processor, the unemployment rate was approximately 50%. F..xcludinq the fishing industrv, the re11laining e_mployment is primarily in govermnent, education, and private support services for the community. These various jobs employ approximately 38 people. The cost of living in Port Lions is substantially higher than it is in the City of Kcx1iak, which in turn is substantially higher than Seat.tle. l\pril 1980, food basket costs compiled by KANA, shONed Port Lions to be 49% higher than Kodiak. The cost of diesel fuel to KEA has risen from 56¢ a gaUon in 1978 to .60 a gallon for the fall 1981 delivery in Port I,ions. This, compared to a current price of $1.06 a gal1on in Kodiak, is 50% higher. This drastic increase in fuel prices has causecl the cost of electricity to rise dr?J1latically. The present cost of electricity in Port Lions for residential purposes is $.45 per kwh of which $.33 per kwh paid by the State of Alaska under the Power Cost Assistance Program. PREVIOUS STODIF.S A preliminary feasibility study titled, "Mennonite Creek Hydro- electric Project, Kodiak, Alaska" was prepared by Robert W. Retherford Associates in 1978 for KFA. At t.he of the study, the term ME:>nnonite Creek was used interchangeably with the Port Lions River. A second study, "Preliminary Feasibilit.y Desions and Cost Estim:ltes for a Hydroelectric Project on the Port Lions River, Port Lions, Alaska" was completed in January 1980 by Robert v~. Retherford Associates for the 0. S. Departlrent of Energy, Alaska PONer Administration, ~Tuneau, AlaskR. A third study, "Port Lions Hydroelectric Project" was prepared by the staff of the KEA and Rolland A. ,Tones, a consulting Engineer of Kodiak, AJaska. Soils foundation work was accomplished by Howard Grey and Associates of Anchorage, Alaska, an Environmental Heport on the project was prepared by BEAK Consultants of Portland, Oregon and an archaeolc:qical report on the project was prepared by Linda Yarborough. 2 Robert W. Retherford also prepared a feasibility studv for a "Transmission Line Intertie Between Terror Lake Hydroelectric Project and Citv of Port Lions" in April 1981 for KFA. The above studies a1l found t.he Port Lions Hydroelectric Proiect to provide the lcwest cost power to Port Lions, but the studies were based on costs only through the vear 2000, optimistic streamflo,v estimates for the Port Lions River, state grants for the hydroelectric facility versus borrcwed funds for <-m electrical intertie, and an unrcalisticall y ]('JVV cost estimate for the hydroelectric facility. Based on the ruYDve factors, the conclusions reached required review. DESCRIPI'ION OF PROu'ECI' 1\. Hydroelectric Proiect The principal structures of the project consist of the Crescent Lake Dam, a forebay dam, a steel penstock, a pcwer plant, and a tie-in to the electrical distribution system. CRESCENT LAKE DAM en~ scent lnke is located approximatelv three miles west of the City of Port Lions. The Crescent Lake facility \'Till consist of a main dam and a dike. The dam will be construct.ed across the natural outlet of t_he lake, anc the dike will constructed in a saddle adjacent to the dam. The dam and dike will be earthfill with a key trench excavated into the glacial till foundation. The upstream slope will be protected by riprap, soil cP..rrent, or fabriform mattresses. The dcwnstream slope will be J engthened by tJle disposal of waste material and protection \..Jill be provided by the seedino of vegetat.i ve oover. The outlet works will consist of a 24 inch drain pipe with on inlet control gate to provide do.vnstrecun flew requirerrents. spillway works will consist of a drop inlet spillway to hancUe normal rainfall runoff. l\n emergPncy spillway will be constructed to handle flood flow runoff. The dam wilJ raise the water surface elevation from its present level, of 298 feet to a J:Tk"'lximum level of 312 feet. The crest elevation will be 320 feet. A dike will be constructed across a lCJ'\.V saddle adjacent to the main dam and will be the same construction as main dam and will be 340 feet long. The existing water surface area is 150 acres and would be increased t.o 280 acres with the dam resulting in a maximum storage capacity of 3 3000 . The drop inlet spillway will be at elevation 312 feet. The errergency spillway will be at elevation 3Hi feet. FOPEBJ\Y DAM The Forcbay Darn would be located on the Port Lions River about 1000 feet. dONn stream from the confluence with Branchwater Creek and would be of similar construction as the Crescent Lc.ke DArn. The clam \vould be 20 feet high, 320 feet long and would have a crest elevation of 92 feet. The spi1lway will be a free overfall (straight drop) spillway with dissipating basin. The spillway will he at elevation 86 feet. The existing auxiliary' water intake faciHties for the City of Port Lions would be relocate<'! to the ForPbay Dam Site. The \vater intake for these facilities would be reconstn.1cted at an elevation approxirna.tely bvo feet ]ewer than the penstock elevation to pr0vent the drying up of the municipal water syste.m hy the hydro project. PENS'ICCK Pcwer flews \vould be conducted from tJ1e Darn to the )X)Wer plant. via a 30 inch dia:m2h'r sm:oth steel pipe. 'I'he penstock would be 1280 feet in length would be located on the north the river and ,,,ould be buried Htroughout length. PC1i1ER PIJINT The poweJ:-house \vould be an wCXJd frar:e or metal building near the rrouth of the Port Lions River on the north shore. The foundation would be plnced on bedrock ?1nd the tailrace excavated to the lagcx:m. The pc:i<.ver house would contain one 200 K\\1 turbine generator \mit estimated to operate at 900 RPM and 480 volts. SWJTCINARD The switchyard would be constructed adjacent to the power plant an:J would contain a pad ITOunted 300 KVA r.hree phase transformer and associat.ed equip:rent. This transformer would step up t.he 480 volt generator voltage to t.he 7.2/12.5 KV voltage of the distribution system. All cables would be underground. The PQ\Yer plant and swi tchyard would .t.e enclosed in a chain lin}:: . ELECTRICAL TIE The power lines from the svlitchyard to the existing underground distribution system would be 150 feet long and would be underground. 4 ThlFORJ'1ATION ON POFIT LIONS PRO .. JF:CT Crescent Lake (maximum development under study) Main Dam Length He:i.ght Crest. Elev. Spillway Elev. Existing Lake Level Elev. Existing Water Surface Area t'i'a.ter Surface l\rea at Spillv1ay E1ev. Dike Length Height Storage Capacity Forebay Dam Length Heiaht Crest Elev. Spillway Elev. Nater Surface Area at SpilJway Elev. Maximum Storage Capacity Ci tv of Port Lions ~\Tater Intake Elev. Penstock Water Intake Elev. Penstock Dian:eter Length Penstock will be buried Pa-ver house 720 Feet 18 Feet 320 Feet_ 312 Fee·t 298 (April 1980) 150 Acres 280 Acres 3000 Acre-Feet 340 Feet. 15 Feet 320 Feet 22 Feet 92 Feet 86 Feet 8 Acres 80 Acre-Feet 75 Feet 77 Feet 30 Inches 1280 Feet Location-Near the rrouth of the Port Lions River on the north shore. Equiprrent-one 200 KIN turbine/generator unit. B. Intertie Based on the R. ~q. Retherford feasibility study, the proj)Osed intertie would consist of a 14.4/24.9 kv 3 phase overhead wcx:x'i pole transmission line from t..he Terror Lake Pc:werhouse located in Kizhuyak valley to Port Lions located adjacent to Settlers Cove in Kizhuyak Bay, 5 a distance of approximately 14.5 miles. The line would be constructed on single 45 foot wooden poles with a single wcx:xJen crossarm and pin insulators. The recomrrended conductor would be 1/0 ACSR conductor and \vouJd have less than a 3% voltage drop 2~d minimal line losses. Transformer substations would be provided at each end of the line to change voltage and provide overload protection for the line and equiprrent. Two routes are available and would be studied prior to final design. The c.re approximately the sarrE. length and the main considerations are enviroi"lTTX:ntal, subsurface conditions and capital cost. Previous studies by R.W. Retherford Associates considered use of submarine cable and determined that it was not economical. Consideration will be given during preliminary design to possible use nf single phase to qround, single phase to sea water, and TIDnO]::olar submarine cable to select the TIDst economically feasible svstem for final design. The Intertie could be constructed in 1982-1983 to coincicle wit.h the completion of the Transmission Line from the Terror Lake Hydroelectric Project powerhouse and there..by provide electrical power from KEA '"'-'-''-'-=>"' generators at Kodiak to Port Lions, and take advantage of lo;.-1er fuel costs in Kooiak and improved generating efficiencies unti 1 completion of the Terror Lake project. If the Terror Lake Hydroelectric Project not constructed, the intertie lin2 l:::>etween the Terror Lake Hydroelectric PDilerhouse and Port Lions could not provide power to Port Lions and therefore would not a viable solution. ALTERNATIVF..S 'T'he alternatives studied are as follCJI..vs: a. Continued electrical generation from the e~isting diesel plant located at Port Lions. b. Continued electrical generation from the existing diesel plant located at Port Lions follov;red by construction of a Port Lions Hydroelectric Project (1983) and suppleroentecl by Port Lions diesel generation as demand increases. c. Continued electrical generation from the existing diesel plant located at Port Lions follov;red by diesel generated electrical power from Kooiak (1983) , Terror Ix>ke Hydro (1985), and finally (1989) as demand increases, a 6 combination of power from Terror I~ke supplemented with Kcxhak diesel. d. Continued electrical generation from the existing diesel plant located at Port Lions folla.ved by diesel p<::JNer from KodicLk:. (1983), Terror Lake Hydro (1985.) , and finally (1989) as deJ!land increases, a combinntion of Port Lions Hydro, Terror wke and Kodiak diesel. e. Continued electrical generation from existing diesel plant located at Port Lions folla.ved by Port Lions Hydroelectdc pcNJer supplemented by Kodiak Diesel (1983), then Terror Lake Hydro (in 1985) and finally (1989) a combination of Port Lions Hydro, Terror lake and Kodiak The stanC!ard assumptions use(! in comparative analysis are as folla.vs: a. The inflation rate is zero percent. b. Fuel is escalated at 2.6% per year for the first 20 years of the evaluation period. c. The interest rate for purposes of arrortization and present wort11 calculations is 3 percent. d. When the economic life of 8\.'JI.liprrent is less t11an the evaluation period, the equipment is assumed to he replaced by like equipment at the same cost. e. The evaluation period for cost comparisons is 50 years from 1981 with the econanic life of hyC!roelectric plants of 50 years, plants 20 years, and transmission lines 20 years. f. Peak electrical demand in Port Lions is projected to gra.v from 250 kw in 1981 to 579 kw in the vear 2001. 7 Other data which apply to one or rrore of the cases studied are as follows: a. Port Lions rronthly require.ITEnts were taken from the Kodiak Electric Association Port Lions Hydroelectric Project Report dated November 1980 and ext.rapolated to forecast 1983 rronthly energy requireiT\E"_nts as follo.Ns: January February March April 122 1'1\>VH 125 MYlli 142 MtlH 153 MWH May June July August 132 MWH 100 Mi>JH 72 MWH 113 !YlVJH September October November December 113 ~1WH 91 MWH 138 MWH 113 MivH b. The latest cost estimate for the Port Lions Hydroelectric Project based on 1981 costs exclusive of construction inten~st as follOtlS: Direct Construction Cost Unfon,seen Cost Engineering, Design and Constn 1ction i'k:1nage:ment Allo.Nance for Inflation to 1982 (10%) {15%) 'KYrAJ} {10%) T\JJ'AL Rouno Figure $1,915,050 191,505 287,260 $2,393,815 239,382 $2,633,197 $2,600,000 c. The latest cost esti.rnate for the transmission line from the Terror Lake Hydroelectric Project to Port Lions is as follov1s: (Based on three phase overhead transmission line.) Direct Construction Cost Unforeseen Costs Engineering, Design, and Construction f•'lanage.ment Allowance for Inflation to 1982 8 (10%) (15%) 'KYrAL (20%) Round Figure $1,074,535 107,453 177,300 $1,359,288 271,858 ~1,630,000 d. The cost of the Terror Lake Hydroelectric Project used in the analysis as fo11ows: Direct Construction Cost(1419 Dam Height) $180,000,000 F.ngineering, Design and Construction M.anagerrent Allowcmce for Inflation to 1982 Owner Costs 'IOTAL 8,000,000 6,000,000 6,000,000 $200,000,000 e. The estimated annual O&M costs for the various alternate facilities are as follows: a. Port Lions Diesel Plant $ 91,200 b. Port Lions Transmission Line 14,900 c. Port Lions Hydroelectric Plant 23,400 d. Kodiak Diesel Plant 1,004,300 e. Terror Lake Hydroelectric Plant ($15/kw) 300,000 f. The 1981 diesel fuel cost for Kodiak and Port Lions are $1.06 and $1.60 ~r gallon res-pectively. g. The 1981 estim-'1te of diesel fuel usage at Kodiak and Port Lions are 12,375,000 and 85,000 gallons respectively. h. In each case where the generating capacity of the Terror La.l(e Hydroelectric Project was reached, Kodiak dieseJ power generation was included in proportion to the power consumed, since Kodiak operating and fuel costs are lower than Port Lions Diesel operating and fuel costs. i. It was asslllled that the height of the Terror Lake dam will be 1,419 feet, will include the Upper Uganik and Hidden Basin drainage areas and will provide a net annual power product.ion of 160, 900 ~1J-L The final height of t.he Terror Lake dam still being studied and may be different than the height used in this study, however, it is not JJelieved that use of a different dam height would change the outcorre of this study. Based on the above considerations, each of the alternatives were a11alyzed and resulted in the follovJing conclusions: See Exhibit 1 for Economic Analysis Computations. Alternative A Assumes continued diesel generation at Port Lions. This is the base case and assumes that all future demand for electricity will be rret by increasing diesel generation in Port Lions. The existing '--<-'-'-'''--'- 9 plant located nea.r Port V-!akefield which makes utilization of waste heat from the genera.tors impractical. The present worth cost of this Alternative over the evaluation [.€riod (1981 -2030) is $16,624,600. Alternative B Assurres that diesels at Port Lions would continue to supply all the J?CMler requir0..!11E;nts of the village until construction of a hydroelectric facility in Port Lions is complete in December, 1982. Thereafter, village electrical needs would be rret by a combination of Port Lions hydro and Port_ Lions diesel generation. Port Lions hydro is e_xpected to produce 1,581,000 kWh of JXJNer annually which e.xceeds current annual needs, however, monthly stream flo.vs do not equal the pa..ver demands of the village in all months. As demand for electrical power increases in Port Lions, an increasing am:xmt of the hydroelectric capacity will be used. The de_mand for usable hydroelectric energy increases fran 1,252,000 'kwh in 1983 to ultinBte capacity of 1,581,000 'kwh jn 1994. Recent. steam flaw gaging the USGS and AEIOC indicate that previous gaging mav have been optimistic and that the total annual previously forecast generation may not be available. The present worth cost of Alternative B over the 50 year period of analysis is 0,615,200. Alternative C This alternative also assurres that the diesels at Port Lions will continue to supply all of the electrical p<:Mer requirerrents of the city through 1982. Thereafter, Port Lions would receive power through a transmission line which would tie into the Kodiak-Terror IBke transmission line. The JXlWer which Port Lions would receive through this line until the completion of the Terror Lake hydro project in 1985 would be diesel generated power from Kodiak. Kodiak generated diesel pcwer is less expensive than diesel generated pcwer from Port Lions, because of fuel costs and ll'E:!chanical efficiencies and therefore, the Port Lions diesels would not be used after 1982 except for standby purposes. In the period from 1985 to 1994, the village will be supplied entirely from electricity generated from Terror Lake. Following this, wi tJ1 cont.inued growth in demand from both Kodiak and Port Lions, it will again become to use an increasing amount of Kodiak supplied diesel generated electricity to supplement Terror lake electricity through the end of the planning period. present worth cost of Alternative C over the year ]:eriod analysis, is $7,380,000. 10 Alternative D This alternative as~mrres the sarre scenario for supplying pJWer to Port Lions through 1988 as in Alternative C. Unlike Alternative C, beginnj ng in 1989, Port Lions will be supplied by the Port. Lions hydroelectric project as well as by Kodiak diesel and Terror Lake hydroelectric r:ower. The present worth cost of Alternative D for the 50 year period of analysis is $7,550,000. This alternative requires construction of the Port Lions Hydroelectric Facility and the Intertie and therefore has a substantially higher capital cost than Alternative c. Alternative E This alternative also assumes the same scenario for supplying r:ower to Port Lions as depicted in Alternative D except that the Port Lions Hydroelectric facility is brought on line in 1983 with the Intertie. A.s i1 result, the present worth cost of tllis alternative for the fifty year f)eriod of analysis $7,712,000. This alternative also requires construction of the Port Lions Hydroelectric facility and the Intertie and therefore has a higher capital cost than Alternative C. LOAD FDRECAST The most recent electrical load forecast for Port Lions was prepared by the Kodiak Elect-xic Association in Octol)er 1980. That study indicates the following: A. Trend Data A curvilinear attempt and a logarithmic projection was prepared on KWH sales less large carl'1ercial sales for the historical period 1970 through 1979. The curvilinear method yielded a negative "C" value. The logarit..hmic projection was reviewed and was determined to be of no value in determining the estimates. Both rronthly energy use and consumer grCMth in the residential and small comrrercial classes have been static in recent years. It anticipated that increased gra..vth and energy usage will occur during the period of 1980-1990. B. Corrments by Consumer Classification 1. Residential (Port Lions) Consumer count has not sha,..,'D an increase since 1975; the average for this period 66.6 consumers. Housing and Urban Developuent (BUD) constructing 35 new tmits of single family housing which will be occupied in April 1982. The Kodiak Area Native Association (KANA) has a 11 list of 35 families that have signed up for these units including: a. 20 families moving into new banes from existing homes that they are sharing with other families. b. 10 families rroving into new hones from houses outside Port Lions, i.e. Ouzinkie and Kodiak. c. 5 families rroving into new horres from sub-standard e""'<isting horres . The KEA ]:)CMer forecast study was developed with the ass1.n11ption that one new private unit vJould be constructed in each of 1980 and 1981, and then 30 new HUD units would utilize rx:wer in 1982 with the retirerrent of the 5 sub-standard units. From 1982 until 1989 a aradual increase of residential consu:rrers was estim:":tted from 94 to 105. 'l'he average rronthlv energy usage for the residential consu:rrer of Port Lions shewed a steady from 306 kwh/roonth in 1975 to 243 kwh/rocmth in 1977. It is felt tJ1at this decline was due to an economic decline in the communitv as a result of the destn1ction of the Wakefield Processing Plant due to a fire. In addition, the rising cost of electricity resulted in increased energy conservation by the consumers. Less efficient appliances were with more efficient models. Since 1977, the average usage has climbed gradually to 263 kwh/month in 1979 and it is felt that this grc:wth will continue to 310 kwh/month in 1984 and 380 kwh/rronth in 1989. When the Port Lions Hydroelectric Project or other renewable energy alternative is in operation it is believed that the energy rates will stabilize. This stabilization will have the effect of increasing energy usage. 2. Small Corrrrercial (Port Lions) Historically, the small ccrrrnercial count in Port Lions has shewn an increase of 4 consumers from 1969 to 1977. The historical data of the number of small corrrrercial consumers in Port Lions during 1978 and 1979 was adjusted during the first part of 1980 to 14 consumers using an average of 1060 kv;h/rronth. A new 100 stall small boat harbor is anticipated to be ready for occupancy in 1983. Of the available stal , it was felt that 40 would be used in 1984, the first year after construction, >vith 20 12 A. B. more stal used by 1980. Only two loads otber tban tbe SBH loads are estimated to be added. The average rrontbly energv usage for tbe small cc:m:nercial cons1..'ll1Ers in the small boat harbor was calculated using historical data from the Kodiak small boat harbor and an adjustment factor. 90 kwh/ITOnth per consumer was used for these new consumers. These figures, when averaged in with the 1060 kwh/montb consumption of 1980 resulted in a rronthly average of 360 kwh in 1984 and 305 kwh in 1989. 3. I arge Col1l1Ercial (Port Lions) It is anticipated tbat a ne\V shore based plant replacing the previous floating processor, will be constructed ir 1983 which would start using power in 1984. The of usage and den~cnd should be equal to that of the \'lakefield plant prior to the fire. No other loads in bela.; 350 KVA class or in the above 350 KVA class are expected. 4. Street Liahts (Port Lions) Port Lions has one street light account. Additional accounts are not e:-q:::ected. Additional lights "'ill be installed due to the 35 new HOD horres that are to be constructed. C. _KI,<J Demands (Port Lions) Because of the diversity of the types of loads and large fluctuations in KW deJTlcmds over the last 5 years, load fact.ors were not used in determining peak denx>nds. Instead, each was looked at individually. Residential and small comrrercial dE~nds were figures based on using historical aY'.d projected e.-nergy usages and REA Bulletin 45-2, Demand Tables. The large consumer demands were figured using historical demands, i.e. the floating processor hist.orica.l demands and tbe 1•7nkefield historical demands if a new processor is built. TabJe of Present Worth and Ratios Alternate Port Lions P.L. P.L. P.L. Hydro & Diesel/Hydro/P.L. Diesel 13 Present Wortb $16,624,600 10,615,200 B/C Ratio 1 1.6 c. D. E. SUMMARY P.L. Kodiak Diesel & Diesel/Intertie/Terror I1ydro 7, 380,000 P. L. Kodiak Diesel Diesel/Intertie/Tcrror Hydro P.L. Hydro 7,550,000 P.L. P.L. Intertie Diesel/Hydro/P. L. Hydro Kodiak Terror Hydro 7, 712,100 2.3 2.2 2.2 Each of the fotrr alternatives (B through E) app3ar sup3rior to continued generation at Port Lions (Alternative A). Of these four, Alternatives C, D ctnd E call for a transmission intertie \·Jit.h Terror , and A} B, D and E require that a hydroelectric faci1ity be const:L-ucted in Port Lions. Fran the standpoint of costs, Alternatives C, D and E are priced within 5% of each other and V·lould therefore all appear to be reasonable alternatives at this . Since Alternatives D and E require construction of a Port Lions Hyr...roelectric Project and the Port Lions Transmission Line, the initia·J. capital would be greater than Alternative C. Comparing Alternatives D and E, appears that it rrore cost effective to build the transmission line prior to the Port Lions Hydroelectric Project. For reasons, the Alaska Paver Authority believes that construction of a tra.nsmission line from Port Lions to the Kodiak/Terror Lake transmission line the preferable initial step for satisfying the po.ver require.rrents of Port Lions. Construction of the Port Lions Hydroelectric should be deferred tmtil the Terror Lake Project fully developed. RF~1ENDATION It recommended that, upon assumption of management responsibility for Terror Lake Pro:iect, the Pcwer Authority proceed with design and preparation of detailed cost estimates for a transmission line between Port Lions and the Terror Lake Project paver house. Subsequent to desi~m and detailed cost estimates, the project's economic viability should be reviewed prior to a decision to acquire rights of way and initiate construction. CO.'VJMEI'.1TS BY Il\l'I'ERESTED PARriES A letter su:rnm:trizing the results of our alternative study was .,....,.,...,..,,....~ in November 1981 and sent to h'FA, Kodiak Borough, City of Port Lions, Afognak Native Corporation and Dr. Michael Emmick of Port Lions. Each of the recipients endorsed the intertie except for KFA who 14 responded with a of non-objection and full cooperation. Copies of the responses are attached as Exhibits 2,3,4 and 5. 15 PORT LIONS -D1ESEL 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 ·----·---- P0r lx'"ll F110l * Ccds (c'/C..al) !60.0 164.2 168,4 172.8 177.3 181.9 186.6 191.5 196.5 201.6 20fi.fl 212.2 217.7 2?3.4 229.? 235.1 !41. 247.5 254.0 2fi0.6 (000) Cals Con?tm~cl 85.0 110.0 142.0 185.0 195.0 203.0 212.0 222.0 230.0 232.3 234.6 237.0 239.3 241.7 244.1 246.6 249.1 251.5 754.1 256.6 F\Jel Cn::;t($000) 136.0 180.6 239.1 319.7 345.7 369.3 395.6 42S.1 4:,2.0 46R.3 48';.2 502.9 571.0 540.0 559.5 ~179.8 00l.1 67/.S 645.4 668. Equj pn-cnt Co~;t 0 0 0 0 0 (l 0 0 0 & W* ($000) 91.2 91.2 91.2 91.2 91.2 91.2 91.2 9]. ($00(1) Tot<!] Cost P. v;. ($000) -----------· 227.2 271.8 330.3 410.9 436.9 460.5 486.8 Sl6. 227.2 263.Q 311.3 376.0 38R.2 397.2 407. --------------- l'< ·~.m1ulat'H1 P/W cost of continu<ed clicsel qeno1abon 1981-2000- l\<·u.mnllntorl P/\\' cost of continu0rl clic;;,~J qnnc"'iltion ~001-2031 'f\ffl'f' p /I·: * Ba!"".'G 01: 2.6't F\lE"l F!Xi11ation **T'.clc.r•cl up:m 1980 plus thv first 7 rronths 1981 ---·--------------·------------------·-·------ 0 0 () 0 () n 0 0 0 0 0 0 91.2 (]]. 91.2 91.2 91.7 9J. 91. 2 q] • 2 'll . 2 91 <)] • 2 'Jl . 543.2 559.5 576.4 594.1 61 .2 631.2 G50.7 ~71.0 ~n2.3 713.7 7JG.E 7S9.9 -------·------· 430. 'j 431.4 . ·1.8 <132. ·133. 4 1981 1982 1983 1984 1985 1986 1987 1988 1989 ] 990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 Est. FueJ Cost ¢ HiO.O 164.2 168.4 172.8 177.3 181.9 186.6 191.5 196.5 201.6 206.8 212.2 217.7 223.4 229.2 235.1 241.3 247.5 254.0 260.6 0 & M (Ed Kozak) FORr LIONS -DIESEL Est. Gallons 85,000 llO ,000 142,000 185,000 195,000 203,000 212,000 222,000 230,000 232,300 234,600 237,000 239,300 241,700 244,100 246,600 249,1 251,500 254,100 256,600 Total fuel and 0 & M for 1980 $170,592 Fuel oil for 1980 60,943 0 & M $109,649 Total fuel and 0 & !vl for first 7 rronths of 1981 Fuel oil for first 7 rronths of 1981 0 & M for first 7 rronths Fuel Cost 136,000 180,620 239,128 319,680 345,735 369,257 395,592 425,130 451,950 468,317 485,153 502,914 520,956 539,958 559,477 579,757 601,078 622,463 645,414 668,700 =:: 87,964 :: 45,554 42,410 A-1 42,410 ~ 7 = 6058 X 12 = 72,703 + 109,649 = 182,352 ~ 2 = $91,200 SOLJPCES OF FT ,F.CTRJlJTY Y.DR f()jff LIONS Port T.i.ons niesP1, Foll<NJPd hv Pnr 1• T,jons llvdr<> vlhich is ThereCJftf"'r SuppJ em_,ntrrl by Port T.ions Diesel f'\qnin J 'Jfll 1987 1983 1'184 1985 198(1 1987 1988 1989 1990 1991 1997 1993 1994 1995 199(, 1997 lCJ'lR 1999 2000 Diesel <'.cnerotion Fuel ($000) 136 180.6 28.1 G3.2 78.2 92.6 109.9 129.8 146.8 154 lf11 . 7 170 178.1 lfl6.R 197.1 20B.J 219.6 231.2 243.8 256.7 ---~-- 0 [, 11 ($000) 91.2 -'11. ;:> ($000) .1\nnuCJl Coc-.t '27.7. 2 271.8 119.5 154.4 169.4 183.8 201.1 7.21 .0 238.0 745.2 757.9 161. ;' 7G9.3 278.0 78R.3 299.5 :no.c 327.4 335.0 :)/1.7. '.! ---------------· ------ Port T .:1 em~~ Hyrlrr' ------ 0 [, 11 ($000) 23.4 ---------~ 2J.1 Jl.nnual Cost ($000) 95.6 --~--~ 9'·. (, Total Cost (OOil) 227.7 271. fl /)fl .5 273.4 2flR.4 302.8 370.1 340 357 :1G4.) 171. C) 380.7 1~8. l 39'/ 407.) 41 R. 'i 479.8 441.4 1\')A <j(;f .lJ -----------·----------- fli C'C0U11t('(] C< JO'lc (()()(\) 27.7.7 263.9 7:'-1 .8 ;H~O. 2 /'i6.7 761.7 26R.1 276.S 7Pl. R 279.1 27(..7 ;;74.1 277.4 770.4 ?G~'. --: ;'( ;; . -/ 7h I.~) h·7 ?fit). :)(,6-~ ------------------~----------------------~----------------------~ To tell P.\-J. C0c't 1981-~()0(1 ~ s 'i,/H9,l0Cl 'J'c,t ell P.\·1. Co!" I-2001<-'031 ~ c,, 1:'6 'J 00 1UI'i\J, Pil-l _c:_J o; 615 ,2011 ------- B-1 SOUFCES OF ENERGY 'ID MEIIT NRT LIONS NEFD FOR ELFrr. (K\Illi} (000} HYDro 1 2 EST FUEL COST TOTAL EST DFMAND DIESEL, PER GAL ¢ FUEL COST 1981 850 0 850 160.0 $136,000 1982 1,100 0 1100 164.2 180,620 1983 1,420 1,252 168 168.4 $ 28,300 1984 1,850 1,484 366 172.8 63,200 1985 1,950 1,509 441 177.3 78,200 1986 2,030 1,521 509 181.9 92,600 1987 ?.,120 1,531 589 186.6 109,900 1988 2,220 1,542 678 191.5 129,800 1989 2,300 1,553 747 196.5 146,800 1990 2,323 1,559 764 201.6 154,000 1991 2,346 1,564 782 206.8 161,700 1992 2,370 1,569 801 212.2 170,000 1993 2 I 1,575 818 217.7 178,100 1994 2,417 1,581 836 223.4 186,800 1995 2,441 860 229.2 197, 1996 2,466 886 235.1 208/300 1997 2/491 910 241.3 219,600 1998 2,515 934 247.5 231,200 1999 2, 960 254.0 243,800 2000 2,566 1,58] 985 260.6 256,700 1 Est ar.nual usable K."hlf! 2 10 K1.rv1I :=:: 1 1/31 2/28 3/31 4/30 5/31 6/30 7/31 8/31 9/ 10/31 11/30 12/31 1/31 2/28 3/31 4/30 5/31 6/30 7/31 8/31 9/30 10/31 ll/30 12/31 B-2 EST. I\1\"lti AVAilABILITY AND USAGE BY M'JNTH FOR PORT LIONS 1983 Est F~erqy Hydroelectic Rryire.rrents (Kv\rt) Potential 122,000 125,000 142,000 158,000 132,000 100,000 72,000 113,000 113,000 91,000 138,000 113,000 1,419,000 160,000 165,000 184,000 195,000 172,000 142,000 100,000 143,000 143,000 122,000 ,000 149,000 1,852,000 128,000 45,000 68,000 145,000 152,000 145,000 151,000 151,000 145,000 ,000 147,000 151,000 1,579,000 1984 128,000 45,000 68,000 145,000 152,000 145,000 151,000 151,000 145,000 151,000 147,000 151,000 1,579,000 1\WH Available For Use in Port Lions* 122,000 45,000 68,000 145,000 132,000 100,000 72,000 113,000 113,000 91,000 138,000 113,000 1,252,000 Rst. of actual KVVH avail from Port Lions Hydro use in Port Lions 128,000 45,000 68,000 145,000 152,000 142,000 100,000 143,000 143,000 122,000 147,000 149,000 1,484,000 Surplus 3,000 51,000 8,000 2,000 29,000 0 2,000 95,000 *Usable energy from project B-3 EST KWH AVAilABlE & USAGE BY ~"'NI'H F'OR PORT LIONS HYDRO ENERGY KWH AVAIL. FOR ENERGY ENERGY ENERGY REQMTS USE ON PORT REQMTS KWH RFX2Ml'S RYJH RB;J'1I'S KVJH LIONS (K\<JH) AVAIL. (K\AJH) AVAIL. (KWH) AW\IL. 1985 1986 1987 1988 -------- 1/31 168,000 128,000 175,000 128,000 182,000 128,000 190,000 128 ,00( 2/28 173,000 45,000 181,000 45,000 189,000 45,000 197,000 45 ,oor 193,000 68,000 202,000 68,000 210,000 68,000 219,000 68, oor 4/30 204,000 145,000 214,000 145,000 224,000 145,000 233,000 145,00( 5/31 181,000 152,000 189,000 152,000 197,000 152,000 206,000 152 ,OOl 6/30 149,000 145,000 156,000 145,000 164,000 145,000 171,000 145,00\ 7/31 105,000 105,000 110,000 110,000 115,000 1 ,000 120,000 120,001 8/31 150,000 150,000 157,000 151,000 163,000 151,000 170,000 151 ,oor 9/30 150,000 145,000 157,000 1 ,000 163,000 145,000 170,000 145 ,00( 10/31 128,000 128,000 134,000 134,000 139,000 139,000 145,000 145,00! 11/30 ,000 147,000 194,000 147,000 203,000 147,000 211,000 JA7,0Qi 157,000 151,000 165,000 151,000 172,000 151,000 180,000 151,00 TCYI'AL A VAIL. _1 ,509,000 1,521,000 1,531,000 1,542,00 1989* 1990* 1991* 1992* 1993* 1994* 1/31 2/28 3/31 4 5/31 6/30 7/31 125 125 131 131 136 136 141 141 147 147 153 8/31 9/30 10/31 151 151 156 151 161 167 151 172 151 171 151 11/30 12/31 1,533,000 1,559,000 1,564,000 1,569,000 1,575,000 1,58 1 * Same as 1988 except as noted Port Lions FroP1 Kcxli 0lr Diesel, Terror !.l'lke Hwlro i'mcl Finally 7\ Comhinatinn of Transrnissinn Fran Kcx1ii1k Dies,•] and Tcn·or T,lk<" l!vclrn J 98.1 1982 1984 1985 19Rf> 1987 l9P'l 1 Q<)] 1992 19<J4 J 996 1997 1998 Diesel c..,ner0- Kcdiak/Port 1 4 l 42.9 52.3 15.9 l7 .5 lfUl 20.6 22.0 23.7 2'i.2 27.1 28.7 30.4 32.1 7 7 7 8 n o 7 6 (i 8 h 8 94 8 J 75 ~' 173 9 177 8 183 9 180 l\f:t<:r 1988 Port Lions will be surr,lir<::l in part bv Kn0iuk rli.Cl'PI i'lliCl in pilrt h\' 'I'PrTor 1,•\p llwlro Trt:a 1 P .\•i • 1-?nno = $ ,848,000 . , ( '·" ·c nl:t~aerp,:'J [Jilm') .:lt_ $1S/D .. · ~l-~~r (SeC' Rct}•8rforr1 Terre:~-l..:1K(• Il\'t_1rn 1'_:Tlic··-·t-, f\·,}: 19H(l Tnb!0 i;-~:, b:J ure assturr::d tn Llf' rret. fr0rn Lt=d:C? .~t the rC'i-c f\';JH rleF\c'-HYl fnr rl -C' sr1rr~~ f1acx•d ,1 tot ill rapi tell investm:rnt in 1985 o' /0(1, Pflll, 0(1(1 C · ,. r•.•r r 0!'0i1CT"' \ 4 'i(l To!<11 P.l·c. n•o.t 2001-2(;3] att:•·:'hc·1 fX1.1 To+:1\ S7,i73,100 4 7,773,100 .;_ 160,900,000 KWH 4.831¢/Kl'lll Rr:prcscnf.<': 0&1'1 cost of that port:i.cJc of Kcxliak d:i es0 1 q(;nc:rat ion 1 tilb I c: !:r Pori u~,•o" pJ $ H, 900 p:•r v:llich is the: estimated 0&1·1 cost of thr· tranRnisrion l iw· fn"'.' TPrrrn T<,h; t.0 Port Lion;c. ISc:P Rclllf>rfcn1 Re[Drt 'l'nb1r 8-4 Fuel F'.£!1n.l'" 85<J; 5 of Total F'uel + 0&1-1 costs. Repr<'scnts thF annunl cost of thrc trnr"-::Tissinn line fran TPJTor J,'JJ:c to Port Lions. c 2000 93 3 c 1 ENERGY REQUIREMENTS KWH (000) Port Lions Kodiak Total Terror Lake % of Total Dem-:>nr Demand Demand Demand From Terror Lake 1985-1988 Varies Varies 160,000 160,900 100.00 1989 2,300 161,700 164,000 98.1 1990 ') 166,700 169,000 95.2 "·, 1991 2,346 170,700 173,000 93.0 1992 2,370 175,700 178,100 90.3 1993 2,393 179,700 182,100 88.4 1994 2, 417 184,700 187,100 86.0 1995 2,441 188,700 191,100 84.::! 1996 2,466 193,700 196,200 82.0 1997 2, l 197,700 200,200 80.4 ] 998 2,515 202,000 204,500 78.7 1999 2,541 206,000 208,500 77.2 2000 2,566 211,000 213,600 160,900 75.3 % of Tota 1 De.Jnand Alrount of KI\TH Demand Fuel Cost For 1 From Kodiak/Port at Port Supplied Kcx1iak Diesel Fuel Cost For Lions Transmission Ko:liak Diesel Kodial< esel 1985-1988 0 0 0 0 1989 1.9 ,700 130.2 4,064 1990 4.8 111,500 133.6 10,640 1991 7.0 164,220 137.0 13,915 1992 9.7 229,890 140.6 23,088 1993 11.6 277,590 144.2 28,592 1994 14.0 338,380 148.0 35,772 1995 15.8 385,680 151.9 41,847 1996 18.0 443,880 155.8 49,398 1997 19.6 488,240 159.8 55,729 1998 21.3 535,700 164.0 6217.53 1999 22.8 579,350 168.3 69,646 2000 24.7 633,800 172.6 78,138 1 14 KWH = 1 Gal C-2 TERROR IAKE HYDRO COST A'ITHIBTJTABLE TO PORT LIONS USAGE % of Deficiency runt of ~'ii-I Demand Port Lions~ Frcm Terror Lake at Port Lions Supplied Terror Hydro Dern::md KvlH (000) Bv Terror Lake (000) Annual Cost 1985 1950 100 1950 4.831 $ 94,200 1986 2030 100 98,100 1987 2120 100 2 102,400 1988 2220 100 2220 107,200 1989 747 99.1 740 35,800 1990 764 96.1 734 ,500 1991 782 93.8 734 ,400 1992 801 91.2 731 35,300 1993 818 89.1 729 35,200 1994 836 86.7 725 35,000 1995 860 84.9 730 ,300 1996 885 82.6 731 35,300 1997 910 81.0 737 , 1998 934 76.3 713 34,400 1999 960 74.5 715 34,600 2000 985 73.1 720 4.831 34,800 1 less Port Lions production after 1988 C-3 O&M & Af\lNtJAL ffiST FOR TERroR LAKE HYDROELF_,CI'RIC PROJECT KW Demand % of Total Demand 0&!'-1 $15 Year Terror Lake Port Lions From Per KW O&M 1985 500 100 15/kw $ 7,500 1986 510 100 7,700 1987 515 100 7,700 1988 520 100 7,800 1989 530 98.1 8,000 1990 535 95.2 7,600 1991 541 93.0 7,500 1992 546 90.3 7,400 1993 552 88.4 7, 1994 557 86.0 7,200 1995 563 84.2 7,100 1996 568 82.0 7,000 1997 574 80.4 6,900 1998 580 78.7 6,800 1999 585 77.2 6, 2000 591 75.3 15/kw 6,700 Port Lions Demand % Of Total Demand .Arroun.t of KWH Dem:md KWH (000) From Terror at Port Lions Supplied Estimated Hydro Terror (QOO) ¢/K'i-JH Annual Cost - 1985 1950 100 1950 4.831 $ 94,200 1986 2030 100 2030 98,100 1 2120 100 2120 10?,400 1988 2220 100 2220 107,200 1989 2300 98.1 2256 109,000 1990 2323 95.2 2211 106,800 1991 2346 93.0 21 105,400 1992 2370 90.3 103,400 1993 2393 88.4 2115 102,200 1994 2417 86.0 2079 100,400 1995 2441 84.2 2055 99,300 1996 2466 82.0 2022 97,700 1997 24 80.4 2003 96,800 1998 2515 78.7 1979 95,600 1999 2541 77.2 1962 ,800 2000 2566 75.3 1932 4.831 93,300 l\nnual Terror Lake 1 Am:na l Cost L'.i :·.'<.·m:nh:<:l Cn;ct l<lfl] /2'1 2 Port Lions llvc1ro and ri CJil J I y 7\ 1987 198~ 1985 107 4 140 ;> 42.9 'i2.3 . 2 2t>3.h 233. 2h'3.4 177.0 -,Frill-15i~i,-~;!·~1(-;;~··T)::O.il hclf-TJill._--f~<:~~], 'V0rn-:r T ..;1kr, Frcm Ya1i.nl: Pi <'Se 1 , 1'er ror Lake, Hyrlrn rcn'i~ U ""'·· lh•r1 •T• 1986 1987 19f<fl l9R9 1990 1 Ql)] 199~' 1 99] ]9'!A l99'i 99R 1999 7 <l q ? 11 7 ] 4 J l7l 15. 1 l 'i. G 16. 1 lli.fi 17.2 17.4 1 fl. t~ 19.1 107 ~ J 01 2 4 3'1 3 .3 173." J72.R 2F•. ::'11.0 ;>pr,,' 707 .. 0 l'!F.l l'Jt..O 19l.f1 1H7,r; 184.5 18~.0 180 . 'J'nLll P.W. Cost l'JRJ ··2000 Tot·ol P.l'i. Coc:t :'00]-2031 Tct·al P/\'1 s 4,020,000 :moo 7 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 D-1 FNERGY REX)UIREfvlENTS KWH (000) Port Lions Port Lions Net Port Lions Demand Hydro Demr...nd 2,300 1,553 747 2,323 1,559 764 2,346 1,564 782 2,370 1,569 801 2,393 1,575 818 2,417 1,581 836 2,441 I 860 2,466 885 2, 49] 910 2,515 934 2,541 960 2,566 1, 58] 985 Terror Lake as on 'I; Net Port Lions of Total Net Demand 99.1 747 96.1 764 93.8 782 91.2 801 89.1 818 86.7 836 84.9 860 82.6 885 81.0 910 76.3 934 74.5 960 73.1 985 I\cxhak Demand 161,700 166,700 170,700 175,700 179,700 184,700 188,700 193,700 197,700 202,000 206,000 211,000 Combined Demand 162,400 167,500 171,500 176,500 180,500 185,500 189,600 194,600 198,600 211,000 216,000 220,000 Terror I.aJ.:o 1419 --- 160,900 160, Arnt Supplied Bv Arnt Supnlicd Terror Lake Hydro Kodiak Diesel 740 7 734 30 734 48 731 70 729 89 725 111 730 130 731 154 737 173 713 221 715 245 no 265 Amt of KVJH Supplied DIESFL FUEL AI\[) 0 & M COSTS KODIAK DIESEL AND TERROR I.,Z\KE HYDRO 0-2 Bv Kodiak Diesel (000) Fuel Cost For Kodiak Diesel ¢/Gal Costs for Kooiak Diesel 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 1985 198G 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 1 7 30 48 70 89 111 130 154 173 221 245 265 KW Demand for2 Port Lions 500 510 515 520 330 335 341 346 352 357 363 368 374 380 385 391 130.2 133.6 137 .o 140.6 144.2 148.0 151.9 155.8 159.8 164.0 168.3 172.6 700 2,900 4,700 7,000 9,200 11,700 14,100 17,100 19,700 25,900 29,500 32,700 % of Total Demand 0 & M Terror lake Hydro Frcm Terror Take Per Yr Per ~v 0 & M 0 0 0 0 99.1 96.1 93.8 91.2 89.1 86.7 84.9 82.6 81.0 76.3 74.5 73.1 15 15 7,500 7,700 7,700 7,800 ~~ 1900 4,800 4,800 4,700 4,700 4,600 4,600 4,600 4,500 4,300 4,300 4,300 2 14 KVJH -1 Gal This after subtracting the 200 I\li~ supplied by Port Lions Hydro in 1989 Dic:>o;cl Gf'neril- tion Port Lions Fuel ]981 1982 136.0 180.6 SO\l!X:l'_S OF' ELH::'1'RJCAL POtiER f'('F !DIU J.JO!:S Poric Lions Dil"sc>], F'ollcwccl hy Pnrt Lions llyclro Which is Snpp!enY•nh-(1 ],• •. • YrY 1 iilk Dir~rJ, Tl1rn Trrror T ,,kc Hydro ancl Fi ncllly n Corrbination of Trnnsmission Frnc Yn'1i.ilk Dir:s"J, Tcrror T <1kr Hvclro Ancl Pnrt Linns llydrn 1983 1984 l98'i 1986 1987 19fl8 1989 1990 1991 1993 1994 19% (l & ~l 91.2 91.2 -----------------------~--------------------------------- Annua J Cost Port Lions H 'clro 0 & M Annunl Cost K~ink/Port 1 LlOTlS Trans. Fuel 0 I• M Annui11 Cost 1 TPJ:TOr] I <>kC' ~ 23.4 95.6 _____________ 1_8~._7 ____ 4_1~.9 ________________ _ 18.2 2/.3 97.6 ----------------·----------------------- !·: l 'J9'7 1998 7000 -4--2J.4 0 & t-1 1 ________ 4:..:·~5c__ _ _:4c:•_:.7 __ 4. ·; 4.8 Sarre AS Altr-rnnt-i.vr n ----------------------------~ ------------------------·------------------------------ Annual Cost 1 _______________ 2_.1_._3 ___ 2_4 _. 6 ___ 28_._5 ___ 32_._8 ~------------------------------------------ Total Cost 227.2 271.8 253.5 280.8 242.4 245.9 249.8 254.2 ------~---_....,... Discounircl Cnst 7n.2 263.9 238.9 7'i7.0 715.4 217.1 209.2 ?OG.7 /15.5 711.(' 706.S 202.3 J9fl.J 1'14.0 JOJ.(' lfl7.G lfi~.r, 183.0 1no.n 1":7.'> 1 S•>C" at.t2chrd sh0et ancl j\lternz1tive C T"ca] P. \'I. .'o:cr 1981-?000 Toti'll P. \'1. Cost 7001-20::\J $ 4,162,00(1 3,550,000 $ 7,712,000 E-1 SDURCES OF EI I'CI'RICITY FOR PORT LIONS DEMAND AND ENERGY REtlUIRENENTS Port Lions Diesel C.,eneration Hydro Kodiak Diesel Terror Lake DeJTBnd Port Lions Port Lions & Trcmsmission Hvdro (KWH) (KHH) (KWH) (KvmJ (KWli) 1981 850,000 850,000 1982 1,100,000 1,100,000 1983 1,420,000 1,252,000 168,000 1984 1,850,000 1,484,000 366,000 1985 1,950,000 1,509,000 441,000 1986 2,030,000 1,521,000 509,000 1987 2,120,000 1,531,000 589,000 1988 2,27.0,000 1,542,000 678,000 1989 :?,300,000 1990 2,323,000 1991 2,346,000 1992 2,370,000 I SN1F. AS #C 1993 2,393,000 1994 2,417,000 1995 2,441,000 1996 2,466,000 1997 2,491,000 1998 2,515,000 1999 2,541,000 2000 2,566,000 1,542,000 Supplemental Needs For Sources of KW Port Lions Diesel FueJ Costs KW Peak Port Lions Kodiak Diesel Kcx1iak ¢I Gal Demand Hydro Terror Lake (KW) (KW) (l\W) 1981 106.0 250 200 so I . . 1 1982 108.8 315 115 Port Llons D1ese. 1983 111.6 390 190 I '. k D. 1 1984 114.5 490 290 Kcxua lese. 1985 117.5 500 300 1986 120.5 510 310 1987 123.7 515 315 1 Terror Lake 1988 126.9 520 200 320 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 1'WH FIRH CAPACITY {KI\IH) 10 X 3) Current Kodiak Terror Lake Current Port Lions Diesel Hydro Diesel 136,130 " " 181,170 181,170 0 0 0 0 139,000 139,000 6,570 6,570 E-2 Port Lions Hydro 0 0 1581 1581 1981 1982 1983 2031 1981 1982 1983 2031 Annual Cost 2 2 ,566 95,566 Annual Cost $ 2 2 97,574 97,574 0 & H -- $91,200 91,200 23,384 ,384 PORT LIONS HYDRO 1 'l'otal $91,200 91,200 118,950 118,950 P/W $91,200 91,200 115,485 115,485 P.W. Cost 1981-2031 KODIAK/PORT LIONS TRANR{TSSION LINE 3 0 & M Total P/N $ 91,200 91,200 14,885 ]4,885 $ 91,200 91,200 112,459 112,459 $ 91,200 91,200 109,183 P.VJ. Cost 1981-2031 ~ 50 year life 3 Continued diesel generation at Port Lions 20 year :::: E-3 Accumulated P.W. $ 91,200 88,500 ?.,917 ,400 $ 3,097,600 Accumulated P.W. $ 91,200 88,500 2,758,700 $ 2,938,400 :::o -r': I ;-j I 3: :::E (') \ cr: llJ \ z \ w \ \ \ \ \ \ \ 0 I I I I I I KWH QQ) MAY J UN JUL i\UG MONTH PROJECTED ENERGY P OCT NOV DEC H Y D R 0 E L E C T R I C P 0 T E N T I A L F i g \l ,-c· .') AND ENERGY REQUIREMENTS (I 1. (i ·{ KODIAK ISLAND BOROUGH 11 r: c c m ]1 e r ~) , 1 ~~:; I ,\Jas]cl I'OI,'Cl' ;\u::lwrity .)::J.J West rifth i\'..cnue ,\nchor~1gc, 1\Li:;J,;:! 00:~01 ;\~tcntinn: !\lr. L<)l1,l~:tcrc iZr: : Port L i on s ilc:1r ~!r. Lort;::1cre: Telephones 486-5736 -486-5737 -Box 1246 RE C_E IV ED KODIAK, ALASKA 99615 DEC 1 4 1981 ",t·,USAA POWER AUTHORITY Th:lni: V'lU ror your letter oF Noc·crnbcr lS, l~iSl rc:::l.rding the ·leveJ:>pi:1c:1:· :1t l'oJ·t Lions. The Kocli:ll-; Island Borough .\sscrnhl; :1t their n·gul:1r ::1ccting on llcccm11cT :~, l01ll rc\·ich·cd yo:.1r 1Ct1CI' :llon:: \·lith m::lteri::ll :-ro::l the ma:.-or or Pt•rt Lions :md in .c',l'llC' r:1l l. he :\s •;r'::l\1 l )' ::c:ppn rt. :; t· he 1\P:\ cnn c l ct:~ ion, n :1me 1 )' "the constnl,·ti on or· :1 tr:n~·;1:1i ssi on l inc fro:;: l'ort Lion:' to the ::c!di:1k error L1ke tr:msm!ssion is the prcfc1·:ll1lc initial step f:J'' s:rt: ~Cying the po·::er rcqtti rc1ocnts of l'ort J.i.ons. Construc- t ion :1f' the Port Lion:' hyc:rDclcctric project should 1·c deferred until tLc Tc1·rc~r r.akc }J1'0jcl~t is fully dc\·clGpccJ 1 '. '!'iLl:JL you for L'.·-' opportunjty to conmcnt on the v:n1ous altcrnn- t-i\·c~: rrf~~lrd-inf: Port Lions. :1 i i1 C\' ] y, ( c /: . ' ,., /• / ! ./"}---'-- ·' . ) A (~' '--/,.. '! (/ ", l'hi 1 C. Shc:1 Jy EonJUgh t'!:ln:1 gc r u: l':1t Lukin, >!:tyor Pon Lirlllc-., ,\K mdc1 Rll.11'v R E C E I V E D ,~ .. :.··~ .,;. ·J ·.·''fb t:ozv ,, .. ,. ·:, ... · , ·<7!fl~.-·,. '· · 1{·\ /: E C 1 8 19 81 ~:--... ~':·~····" ··~ 'v.:.j -~;;_\.;;~_~::)2.#~:) ~~;~ .. ,ALAteKA POWER AF. (f"'"f', ".\ ~ h, I~ 'oh ,._,.,.~, ~-~,_.~?" NATIVE ~'%..,. CORPORATION BOX 14 i..;,....;_~W· • 0 KODIAK, AL.C,SfCJ.\ :::J9b15 ------Q ----··--TEL. (907)486-4200 l'CC111!H':Y 16, J98 '-lr. onf'Jlcrc ;\ J ~. k:l PC''A'QY Att i ty J .lt hiest Sth :\·t,.:-c:nu !\nchm.-,1 c, AK 99 01 DE:c1r )·1r. Lon,2J1 e: In r s t Eric Yould~ concJ!l Lon to defer the rt the rror Lake P eel: is fu1 t~conomicai more easablc, but w-i on meet the needs th months. , .. • 1 f\ .. L y' M~J~- :lARVTt; FROST Gc:ner a.l Manager Afognak Nntivc Corporation \IF: cfb le ter, we tota support yo!lr ons electric Pr cct until evcloped. Not only is it the w-ntcr supply in Port Lions ro stern nine ou of twelve .. (907) 486-3261 f}Z ,n n RECEIVED L11JWw0~ r-DEC 14 1981 /-" /7 _ >Ki' 0 00 f171 II -r--;v?~~ ~j?JJJJ::. W!Y~_§f,tfl.~f)OWER AUTHORITY w111 Box 787 KODIAK, ALASKA 99615 mhcr-11, \lr. Er·ic P. Yo\lL, I) CC'Ctcn ALASK/\ P E!< i\UT!! est h /\venue 1\ n c h or c , 1\ 1 a s k fl a r . r· 1 c: Ec: T rror Inkc TriH1o' i'rc·jcct as Per vc11r- ion L ne versus P t Lions ll roclcctri n Mil crror Lil kc etwc n Dr. l , 1 J r ~ Pr-oject •. 1 ,n lC r< .rnrn ic k i iccn >~ nnd E/1. ctter· of Novcmh r l , L 1 n s p c t it one d i·: !·.· t i n i c v <' n e 1 n I h•· process. A Sett nt A1~cccmcnt wa rcnchc c w n u 1 cl \v it h r <1 \•/ h is P c t 10 n t C· lntervenc n the r roc L ell~ c a n d \,· \v o u 1 d _i o i n v r e q u c s t API\ n•a c clfl v luat1 n (ir t he top vide vdro pc."c.'cc· for the p e of Port 1 ns. \~\r a l rc('cl that '.:e ·..:ou1d not challenge the conch:sion of th st n(\rcc it the con lus ons of your studv on sup ort you in vou r Lake r u r t s t h tll l d t h t r a n rn i s s ion 1 i n k b c: tween Po r t L ion s a n d t ll e Ter-ror· appropl-r n . i::c undcrsL1nci that the ~;l,LOO,OOO that was originc\1lv for t);c h r·o project wi1l now he divet-ted to th transmission lf there 1s any way t' can be help, don t hcsiti1tc to ask. nee ly, //:"' • (. .!"' case, Tr. n er<t <:l n cr 1 a p ------------ >-a. 0 u = ---