ML19259C460

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Forwards 1979 West Group Forecast.
ML19259C460
Person / Time
Site: Skagit
Issue date: 05/04/1979
From: Thomsen F
PERKINS, COIE (FORMERLY PERKINS, COIE, STONE, OLSEN
To: Black R, Deale V
Atomic Safety and Licensing Board Panel, NRC OFFICE OF THE EXECUTIVE LEGAL DIRECTOR (OELD)
References
NUDOCS 7906220122
Download: ML19259C460 (100)


Text

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                                                                   ,re g,t sTO May 4, 1979                                 m             e,,,
                                                                                                                                &                                q Valentine B. Deale, Chairman Atomic Safety and Licensing Board                                                                  g      3 4oc
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1001 Connecticut Avenue ' l Washington, D. C. 20036 (6- ghi pe[s

  • Richard L. Black, Esq. c.pyc S

Counsel for NRC Staff g U.S. Nuclear Regulatory Commission - @ N I o' Office of the Execurive Legal Director Washington, D. C. 20555 In the Matter of Puget Sound Power & Light Company, et al. (Skagit Nuclear Power Project, Units 1 and 2) Docket Nos. 5 0-5 22 cind 50-5 2 3 Gentlemen: For the information of the Licensing Board, the Regulatory Staff and the parties pursuant to the McGuire rule, we are enc-losing copies of the 1979 West Group Forecast (WGF). denceIton will March be recalled1, that the 1977 WGF was received in evi-1977 during the joint need for power hearing as Skagit Exhibit 87 and Pebble Springs Exhibit 26 (Tr. NFP 1760). Subsequently, the 1978 WGF was distributed to the Board, the Regulatory Staff and the parties under cover of our letter of March 4, 1978. Forecasts, To facilitate comparison of the 1977, 1978 and 1979 West Group we are also enclosing a graph on which we have plotted the energy deficits projected in each of these forecasts. (The values plotted are from line 10 of the estimated loads and resourcer tables, copies of which are attached to the graph.) The graph also shows the probable energy dates (projected on-line dates) for Skagit Unit 1 (S1) and Skagit Unit 2 (S2) used i. the 1977 WGF as well as those used in the 1979 WGF. 2'82 001 7 906 :2 0 /R2

Valentine B. Deale, Chairman Richard L. Black, Esq. May 4, 1979 Page Two As can be seen from the graph, the projected energy deficits facing the region during the mid-1980's have become progressively more alarming with each new forecast. The reason is apparent from the tables, which show that, although estimated loads have been reduced, this has been more than offset by delays in the addition of new resources. With specific reference to the WGF projected need for the Skagit Units, the following table compares the projected energy deficit for the year of initial operation of each unit as shown in the 1977 WGF with that shown in the 1979 WGF, Skagit 1 Skagit 2 1977 WGF 84-85 (1108) 86-87 (290) 1979 WGF 86-87 (1159) 88-89 (1033) As can be seen, the projected need for Unit 1 -- the energy deficit facing the region with the unit on-line -- during the first year of its scheduled operation remains about the same under the 1979 fore-cast as it was under the 1977 forecast. The projected need for Unit 2 during its first year has become more pronounced. Very truly yours, PERKINS, COIE, STONE, OLSEN & WILLIAMS

                                           ~>     t,yD)ll l / ,t       /

Z'lc' h 1 /fb k t' W 2 D.' Y Y By F. Theodore Thomsen Attorneys for Puget Sound Power & Light Company FTT/kd

Enclosures:

1979 NGF 2282 002 Graph with three tabulations attached cc: Service List

1 ,' Date: Mav 4, 1979 Valentine B. Deale, Chairman Nicholas D. Lewis, Chairman Atomic Safety and Licensing Board Energy Facility Site Evaluation 1001 Connecticut Avenue, N.W. Council ..t Washington, D.C. 20036 820 East Fifth Avenue Olympia, WA 98504 Dr. Frank F. Hooper, Member Atomic Safety and Licensing Board Robert C. Schofield, Director School of Natural Resources Skagit County Planning Department University of Michigan 120 West Kincaid Street Ann Arbor, MI 48109 Mount Vernon, WA 98273 Gustave A. Linenberger, Member Richard M. Sandvik, Esq. Atomic Safety and Licensing Board Assistant Attorney General U.S. Nuclear Regulatory Commission Department of Justice Washington, D. C. 20555 500 Pacific Building 520 S.W. Yamhill Alan S. Rosenthal, Chairman Portland, OR 97204 Atomic Safety and Licensing Appeal Board Robert Lowenstein, Esq. U.S. Nuclear Regulatory Cc= mission Lowenstein, Newman, Reis & Axelrad Washington, D. C. 20555 1025 Connecticut Avenue, N.W. Washington, D. C. 20036 Dr. John H. Buck, Member Atomic Safety and Licensing Warren Hastings, Esq. Appeal Board Associate Corporate Counsel U.S. Nuclear Regulatory Commission Portland General Electric Company Washington, D.C. 20555 121 S.W. Salmon Street Portland, OR 97204 Michael C. Farrar, Member Atomic Safety and Licensing CFSP and FOB Acceal Board E. Stachon & L. Marbet U.S'.' Nuclear Regulatory Commission 19142 S. Bakers Ferry Road Washington, D.C. 20555 Boring, OR 97009 Docketing and Service Section Canadicn Consulate General w/o Office of the Secretary Peter A. van Brakel ' 7 9 WG: U.S. Nuclear Regulatory Commission Vice-Consul Washington, D. C. 20555 412 Plaza 600 (mMyi-nei- end--GO--copieed 6th and Stewart Street Seattle, WA 98101 Richard L. Black, Esq. Counsel for NRC Staff Donald S. Means w/o U.S. Nuclear Regulatory Commission Box 277 '79 WG. Office of the Executive Legal La Conner, WA 98257 Director Washington, D.C. 20555 Richard D. Bach, Esq. 1, - Rives, Bonyhadi, Drummond & Smith Roger M. Leed, Esq. 1400 Public Service Building 1411 Fourth Ave. Bldg. #610 920 S.W. 6th Avenue Seattle, WA 98101 9 @! Portland, OR 97204

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Russell W. Busch, Esq. Evergreen Legal Services %k Y , ,. s'f Thomas F. Carr, Esq.

Fi2 f; Assistant Attorney General 520 Smith Tower hf7 ,,j;; Temple of Justice 506 Second Avenue -

u.v 7 k: F* - Olvmpia, WA 98504^ Seattle, WA 98104 .A eq . . -

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                   ,                                         WEST CROUP FORECAST - ESTIMATED LOADS AND FESOURCES JUI,Y 1979-JUNE 1990                                                        Sheet I of 2 Ftpures are mepawatts.                                 1979-80   1980-81       1981-82    1987-83  1983-84  1984-85  1985-86  1986-87    1987-88   1988-89    1989-90
1. Total Area Peak Load (January) 26,041 27 ,34 5 28,676 30,046 31,162 32,296 33,514 34,786 36,101 37,462 38,845
2. Net Peak Resources 1/ 28,911 29,540 31,843 32,039 35,804 36,302 38,835 41,826 43,864 45,149 46,332 3 Reserve Requisements (3,125) (3,555) (4,015) (4,507) (4,986) (5,490) (6,033) (6,609) (7,220) (7,492) (7,769) 4 Het Peak Resources For 1.o ad 25,786 25,9M5 27,828 27,532 30,818 30,812 32,802 35,217 36,644 37,657 38,563
5. Peak Surplus (over Total 1.oad) (255) (1,360) (848) (2,514) (344) (1,484) (712) 4 31 543 195 (282) t> . Total Area Energy Load (July-June) 16,743 17,569 18,390 19,326 20,028 20,720 21,423 22,156 22,923 23,717 24,538
7. Net Energy Hesources 1/ 15,476 15,676 16,723 17,153 17,519 18,446 19,755 21,353 22,275 23,064 23,917
8. Reserve Requirements (330) ( 31 8 ) (330) (325) (324) (336) (349) (356) (368) (380) (398)
9. Het Energy Resources For 1.oad 15,146 15,358 16,393 16,828 17,195 18,110 19,406 20,997 21,907 22,684 23,519
10. Energy surplus (over Total load) (1,597) (2,211) (1,997) (2,498) (2,833) (2,610) (2,017) (1,159) (1,016) (1,033) (1,019)
11. Interruptible Load -Peak 1,079 1,1 34 1,1 32 1,123 1,133 1,144 1,154 1,I65 1,175 1,185 1,195 (included in 1.ines 1 and 6) -Energy 1,056 1,109 1,092 1,100 1,111 1,121 1,132 1,142 1,151 1,162 1,172
12. Fossil-Thermal & Hiscell aneou s -Peak - - - - - - - - - - -

Hesources (Not included Above) J/ -Energy 688 683 683 683 683 083 677 677 677 677 677 Probability that Resources Will Be Insufficient to Meet Total Energy Load in at least 1 Period of 3/ 13 Year Shown - 7. 37 .9 47.6 43.5 46.2 50.7 44.6 37.5 33.7 36.0 34 .4 37.6 14 Year s 1979-80 Through Year Shown - 7. 37.9 63.6 76.8 85.6 92.2 95.1 96.6 97.5 Sd.C 98.5 98.9 Probability that Resources Will Be Insuf ficient to Heet Firm Energy Load in at Least 1 Period of 3/

15. Year Shown -7. 15.1 20.3 22.0 23.9 27.8 21.7 14.0 10.6 14.2 13.1 15.9 16 Years 1979-80 Through Year Shown -7. 15.1 29.0 42.1 53.2 64.6 70.6 74.6 76.9 80.0 82.3 H4.9 N

N Q G / Resources include hydro; small fossil-fuel plants; Hanford-NPR through June 1983; Centralia; Trojan; Col st rip #1 and #2 (507.), #3 and #4 (607.); WPPSS Nuclear #1, #2, # 3, #4, #5; Boardman (907.) ; Skagi t #1 and #2; Pebble Springs #1 and #2; and net contractual imports / exports with utilities outside the Area. Han ford is not included as a peak resource. Estimated amounts for scheduled maintenance (energy only) and for hydro realization factor (peak only) O have been deducted. All existing thermal units and future thermal units under 500 megawatts (peak and energy) are included in amounts as submitted by C r espec t ive pro jec t owners. The energy availability of all future thermal units 500 megawatts or larger has been included as (07, of the first full year LJ'l and 7 57. therea f ter.

    ~2/ The energy megawatts tabulated in line 12 reflec t the amounts of energy available f rom existirig fossil and combustion-turbine installations which may be considered available as reserve energy resources. These are predominately pet roleum-fueled plants utilizing high-cost fuels of questionable availability.

The amounts are in addition to those included as firm energy resources in line 7. 3/ hascJ on same load and resonice data as other tabulat ions herein, except that there i s no consideration of energy reserve requirements or realization factor. Study initialized on the basis of full reservoirs on July 31, 1979. An explanation of these probability figures is found in Section 1 " Discussion of Detailed Report" under the subtitle " Energy Reserve Planning Model".

Q ~ l'] } Q gg WEST GROUP FORECAST - ESTIMATED LOADS AND RESOURCES JULY 1978-JUNE 1989 Sheet I of 2 I\t M cn I 9 7 8 Fleures are megawatts. 197H-79 1979-80 1980-81 1981-H2 19H2-8) 19H3-H4 1984-85 1985-86 1986-87 1987-88 1988-89

1. Total Area Peak Load (January) 24,617 25,871 27,228 28,591 29,877 30,978 32,239 33,511 34,855 36,294 37,739
2. Net Peak Resources 1/ 30,679 32,645 33,435 35,286 35,936 38,202 40,697 43,185 44,970 47,016 47,082
3. Reserve Requirements ( 2,954) (3, 36 3) (3,812) (4,289) (4,760) (5,266) (5,803) (6,367) (6,971) (7,259) (7,548)
4. Net Peak Resources For l oad 27,725 29,282 29,623 30 ,997 31,156 32,9 56 34,894 36,818 37,999 39,757 39,534
5. Peak Surplus (Over Total I.oad) 3,108 3,411 2,395 2,406 I,279 1,958 2,655 3,307 3,144 3,463 1,795
6. Total July-June Energy Load 16,0/2 16,867 17,758 18,715 19,504 20.219 20,972 21,752 22,550 23,394 24,271
7. Net Energy Resources 1/ 15,350 15,586 15,939 16,891 17,568 18,196 19,445 21 ,349 22,493 23,206 23,402
8. Reserve Requirements ( 3'e0) (316) (321) (37 3) (341) (349) (369) (377) (194) (4!!) (423)
9. Net Energy Resources For Load 15,010 15,270 15,618 16,518 17,227 17,847 19,076 20,972 22,099 22,795 22,979

-> 10 Energy surplus (over Total Load) (1,062) (1,597) (2,140) (2,197) (2,277) (2,372) (1,896) (780) (451) (599) (1,292)

11. Interruptible Load -Peak 1,033 1,090 1,174 1,179 1,119 1,130 1,140 1,151 1,161 5,172 1,182 (included in Lines I and 6) -Energy 1,035 1,076 1,147 1,160 1,108 1,118 1,128 1,139 1,149 (O I,170
12. Fos sil-Thermal & Hi scellaneous Resources -Peak - - - - - - - - - - -

(Not included Above) 2/ -Energy $71 577 571 571 571 571 571 563 563 563 563 Frobability that Resources Will Be Insuf fi lent to Meet Total Energy Load in at Least 1 Period of: 1/

13. Year Shown -7. 12.9 36.0 39.2 40.7 38.1 42.0 33.9 20.8 18.8 26.4 32.9 14 Years, 1978-79 Through Year Shown -7. 12.9 40.8 59.8 73.4 82.3 88.4 91.7 93.0 94.0 95.2 96.3 Probability that Resources Will Be Insuf ficient to Meet Firm Energy Load in at Least 1 Period of: 3/
15. Year Shown - 7. l.6 9.9 11.4 14.5 15.2 17.8 13.3 4.1 3.2 6.0 13.0 N 16. Years, 1978-79 Through Year Shown -7. 1.6 10.7 19 30.3 40.4 48.9 54.0 55.5 56.4 58.8 63.9 N

CD 1/ Resources include hydro; small fossil-fuel pl ant s; llan ford-NPR through June 1983; Centralia; Trojan; Col strip #1 and #2 (507.), # 3 and #4 (707.); WPPSS Nuclear #1, #2, #3, #4, #5; Boardman (907.); Skagit #1 and #2; Pebble Sprine,s #1 and #2; and net contractual imports / exports with utilities C outside the area. Hanford is not included as a peak resource. Estimated amounts for scheduled maintenance (energy only) and hydro realization C factor (peak only) have been deducted. All existing thermal uni t s and future thennal uni t s under 500 megawatts (peak and energy) are included in ON amounts as submitted by respective project owners. The energy availab!!ity of all future thermal units 500 megawatts or larger has been included as 60'7. of the first tull year and 7 57. therea f t er. 2/ The energy megawatts tabulated in line 12 reflec t the amount s of energy available from existing fossil and gas turbine installations which may be considered available as rese ve energy resources. These amounts are in addition to those included as firm energy resources in line 7.

   ~3/   Based on same load and re sou r c e dat a as other tabulations herein, except that there is no consideration of energy reserve requirements or reali-zation factor. Study initialize.1 on the basis of actual system conditions and streamflow forecasts made as of February 1,1978.
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                                                \/\/ (y p                                       WEST GROUP FORECAST - ESTIMATED 1.0 ADS AND RESOURCES l 'f 7]                                             ~                                                      Jul.Y 1977 - JUNE 1988                                                         Sheet 1 of 2 6.X 6'l(4G)

M ures are megawatts. 1977-78 1978-79 1979-80 1980-81 1981-82 1982-83 1983-84 1984-85 1985-86 1986-87 1987-88

1. Total Area Peak 1.oad (January) 24,020 25,202 26,742 27.963 29,229 30,561 31,816 33,187 34,633 36,128 37,744
2. Total Peak Resources ~I/ 28,187 31,589 32,668 14,580 37,325 37,462 39,326 41,861 44,177 46,191 46,847
3. Reserve Requisements (2,882) (1,276) (3,744) (4,194) (4,677) (5,195) (5,727) (6,306) (6,927) (7,226) (7,549)
4. Peak Resources 25,305 28,313 28,924 30,386 32,648 12.267 33,599 35,555 37,250 38,965 39,298
5. Peak Surplus (over Total 1.u ad ) 1,285 3,111 2,182 2,423 1,419 1,706 1,783 2,368 2,617 2,837 I.554
6. 'lotal July-June Enetgy I.oad 15,545 16,326 17,335 18,178 18,948 19,770 20,565 21,401 22,281 23,183 24,128
7. Total Fuergy Resources 1/ 15.032 15,489 15,69) 16,703 18,126 18,929 19,306 20,700 22,277 23,337 23,414
8. Reserve Requirements (313) (322) (110) (351) (386) (368) (388) (407) (421) (444) (478)
9. Ene gy Resources 14,719 15,167 15,363 16,352 17,740 18,561 18,918 20,293 21,856 22,893 22,936

- -).10. Energy surplus (Over Total 1.o ad ) (826) (1,159) (1,972) (1,826) (1,208) (1,209) (1,647) (1,108) (425) (290) (1,192)

11. Int er rupt ible 1.oad -Peak 1,006 1,066 1,199 1.2 17 1,195 1,14 1 1,153 1.164 1.174 1,185 1,195 (lucluded in 1.ines I and 6', -Energy 975 1,046 1,149 1,200 1,159 1,108 1,118 1,128 1,138 1,149 1,159
12. Fossil-' thermal & Miscellaneous Resources -Peak - - - - - - - - - - -

(Not luctuded Above) 2/ -Energy 554 611 617 611 611 611 611 611 603 603 603 Probability t lu t Resouices Will He Insufficient to Meet Total Eneigy 1.o a d in at 1.ca s t i Period of: 1/ I 1. Year Shown - 7. 31 . 2 18.6 35.2 31.8 15.8 18.0 21.0 18.4 11.0 15.0 24.6 14 Years, 1978-79 thiongh Year Shown -7. - 18.6 41.6 59.2 65.0 69.8 75.6 79.2 80.8 84.6 87.2 Psobability that Resouates Will He insufficient to Meet Firm 1:nei gy load in At least 1 Period of: 3/

15. Yeai Shown -7. 17.4 9.6 11.8 10.2 4.8 6.4 7.6 6.0 3.0 4.6 9.4
16. Years, 19/8-79 through Year Shown -7. -

9.6 18.6 25.4 28.2 32.6 37.2 41.0 42.4 45.4 50.8 N. . . - - _ - - - - - - - - - . ---__ __ _ .-- - - .-- - CO l / Resources include hydro; small fossil-fuel plants; Hanford-NPR through June 1981; Centralia; Trojan', Colstrip #1 and #2 (50%), #3 and #4 (70%); N WPPSS Nuclear #1 #2, # 3, #4, #5; Roardman Coal; Skagit #1 and #2; Pebble Springs #1; an.! net contractual imports / exports with utilities outside the area. Ilantord is not included as a peak resource. Est imat ed amount s for scheduled ma int enance (energy only), hydro realization factor (peak g only) and incremental losses have been deducted. All existing thermal units and f ut ure t he r ma l un i t s under 500 megaw.stts (peak and energy) are included in amounts as submitted by respective project owners The energy availability of all future thermal unit s 500 megawat t s or larger has g been included as 60% of the first full year and 75% t hereaf ter. 2/ 1he ener gy megawat t s tabulated in line 12 reflect the amounts of energy available f rom exist ing fossil and gas t urbine installations which may be considered available as reserve energy resources These amounts are in add it ion to tlose liicluded as firm energy resources in line 7. l/ Hased ou same lo.nl and a s souri e data as ot her tabulations herein, except that there is no considerat ton of energy reserve requirements or reali/ation f at t or. Study initialized on the basis of actual sys t em conili t ions and streamflow forecasts made as of February 1,1977. Isecause the outlook fo 1977-78 is s t r ongl y a f f ec t eil by t he poor runoff f o r ec a s t e.1 for 1977, the probabilities for 1977-78 are omitted from the accumu-lated probability ticores. The tabulation shows probability of not meeting '. o ad , wh i l e last year's West Group Forecast showed probability of meeting l oa 1.

PACIFIC NORTHTEST UTILITIES CONFERENCE COMMITTEE WEST GROUP FORECAST OF POWER LOADS AND RESOURCES JULY 1979-JUNE 1990 ,- MARCH 1979..,;9 C# ' yY

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                                 $e,&   4 s4l fV 2282 008

'a '. WEST GROUP FORECAST JULY 1979 THROUGH JUNE 1990 CONTENTS Section I. Summary Data Discussion of Det iled Report II. Additional Generating Capacity Actually Installed - January 1978 through December 1978 Scheduled for Service - January 1979 through June 1990 Partial List o' Plants Under Consideration III. Resources and Requirements - Summary Tabulations Peak (January) and Energy Surplus or Deficiency Year Studies IV. Rating Information for Generating Facilities Fuel Plants - Nameplate Ratings and Capabilities Hydro Plants - Namep's te Ratings as of December 31, 1978 Hydro Plants - Chronological Projection of Nameplate Additions V. January Peak, Critical-Period Energy and 40-Year Average Energy Capabilities Columbia Mainstem Hydro Seasonal Hydro Pondage and Minor Hydro VI. Miscellaneous Industrial and Miscellaneous Suppliers - Peak and Average Pumping Requirements - Grand Coulee and Roza US3R Local Use at Grand Coulee Hanford-NPR - Peak and Energy imports and Exports (East) - Peak and Energy Imports and Exports (Southwes t) - Peak and Energy Imports (Canada) - Peak and Energy B.C. Hydro and Power Authority - Loads B.C. Hydro and Power Authority - Schedule of New Generating Units West Kootenay Power and Light Company, Limited - Loads 2282 009

CONTENTS -contd. Section VII. Loads Information on Loads Total West Group Load Total Loads Bonneville Power Administration Chelan County PUD Clark County PUD Cowlitz County PUD Douglas County PUD Eugene Water & Electric Board Grant County PUD Grays Harbor County PUD Pacific Power & Light Company Pend Oreille County PUD Portland General Electric Company Puget Sound Power & Light Company Seattle City Light Snohomish County PUD Tacoma City Light The Washington Water Power Company Other Public Agencies 2282 010

Mr. Howard C. Elmore March 30, 1979 Page 2 Tailwater constraints have been imposed on operations at Grand Coulee which reduce the peaking capability for years 1980 through 1983. In order to reflect this condition an adjustment of 1,543 mw has been deducted in this year's report in the first four (4) years. Again this year, a range of projected loads was made from the econometric model developed for PNUCC by National Economic Research Associates. This model produces a spectrum of possible loads, providing one (but not the only) comparison for checking the reasonableness of the actual load forecast which is contained in the West Group Forecast. Very truly yours, M Glenn F. Nogle, Chairman Subcommittee on loads and Resources of Pacific Northwest Utilities Conference Committee GFN:wpc Subcommittee on Loads and Resources: C. H. Watkins Bonneville Power Administration G. R. Ga rman Seat tle City Light D. J. Caha Tacoma City Light G. E. Bredemeier Portland General Electric Company A. D. Hanson Coordinating Group of Northwest Power Pool R. F. Deesen Pacific Power & Light Company D. H. Knight Puget Sound Power & Light Comp any H. M. Schaffen Chelan County Public Utility District D. E. Long Grant County Public Utility District N. A. Dodge U. S. Army Corps of Engineers J. I. Fu ller Eugene Water & Electric Board G. A. Einarsson Douglas County Public Utility District H. R. Kosmata Washington Public Power Supply System E . F . Timme Intercompany Pool G. F. Nogle The Washington Water Power Company 2282 011

ie M .3 tE E8 bb SECTION I Sumary Da ta Discussion of Detailed Report 2282 012

I . DEFINITIONS For the purpose of assisting in interpreting the enclosed figures, the following terms are explained: Critical Period: The multimonth period during which the least amount of firm energy load can be served from firm resources. With the scheduled development of additional storage facilities, both U.S. and Canadian, the critical period has extended to a multiple-year sequence of historical water years. For the load years included in this report, the length of the critical period based on 1928-32 water years is 42 months (August 16 through February 29) for the first eight years of the report and 43 months (September 1 through March 31) for the last three years. The hydro peak capabilities are the January peaking capa-bilities based on 1936-37 s treamflos conditions. The 1936-37 water year represents the most severe conditions that would cccur in a single season with reservoirs full at the beginning of the storage drawdown period. Adverse Water Years: Historical water years during which the critical period occurred. Firm Resources: (Firm Power and Energy Capability) - Peak and energy resources of all systems, plants and reservoirs when operated as an integrated unit and when related to the characteristics of the Area firm load and as limited by the regulated streamflow of the critical period of the adverse water years. Milestone: A significant event in the critical path from conception of a thermal project to the time it is placed in commercial operation. Once construction is started, the Milestones are represented by a continuous curve relating percentage of com-pletion to the date of commercial operation. Probable Enerav Date: The later of the scheduled date for commercial operation as submitted by the plant sponsor or the date deter-mined by application of Milestones. Secondary Resources: Resources in excess of firm resources. Total Load: The peak and energy load that the West Group Area plans to provide resources to serve. The Area load consists of two components which are: (1) Firm load or the load which a utility or agency is committed to supply. (2) Interruptible load or the load which by agreement can be cur-tailed due to adverse water or shortage of machine capacity. 2282 013

WEST GROUP FORECAST . PEAK LOADS AND RESOURCES (ADVERSE HYDRO) l BPA and PP& L LOADS CNLY IN VCNT AN A s BPA LOACS CNLY IN SO. IDAHO I i 40 39 38 37 36 35 34 33 32 31 30 29 g 28 H 27 k 26 3 25 - c 24 - $ 23 -- a 22 -- z 21 -- m 20 -- TOTAL

                                                                             . e- P E A K h 19   __                                                                           LOAD 33   __

17 -- 16 -- 15 -- 14 -- 13 -- 12 -- 11 -- 10 -- - -PE A K 9~~ PESCURCES 8-- 7-- 6- - 5- - 4-- 3-- 2-- 1-- , 0-- 1979 1980 1987 1982 1983 1984 1985 1986 1987 1988 196s

          -60   -81     - 32    -33     -84      -85    -86  -a7  -88        K YEAR

WEST GROUP FORECAST ENERGY LCADS AND RESCURCES (ADVERSE HYDRO) I BPA and PP& L LOADS CNLY IN MONTAN A 8 ' BPA LCADS ONLY IN SO.

                                                 / IDAHO 1                              1 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
   $     24 - -

Q 23 3: 22 TOTAL 2 = e-ENERGY a 19 LOAD Z 18 6 17

   ]'I   16 M

15 - - 34 _ _ 13 - 12 - - 11 - - 10 - -

  • e-- EN EP.GY g__ R ESOURCES 8- -

7-- 6-- 5-

              ~

4~ 3- - g- - 3__ 0-- 1979 1980 1931 1982 1963 1984 1985 1986 1987 1988 1989 80 -81 -82 -83 - 84 - 85 - 86 - 87 - 88 -89 -90 YEAR 2282 015

WEST GROUP FORECAST - ESTIMATED LOADS AND RESOURCES July 1979-JUNE 1990 Sheet 1 of 2 Figures are megawatts. 1979-80 1980-81 1981-82 1982-83 1983-84 1984-85 1985-86 1966-67 1987-88 1988-89 1989-90

1. Total Area Peak Load (January) 26,041 27 ,34 5 28,676 30,046 31,162 32,29t> 33.514 34,786 36,101 37,462 38,845
2. Net Peak Resoonces 1/ 28,911 29,540 31,843 32,039 35,804 36,302 38,835 41,826 43,864 45,149 46,332 3 Reserve Requirements (3,125) (3,555) (4,015) (4,507) (4,986) (5,490) (6,033) (6,609) (7,220) (7,492) (7,769) 4 Net Peak Resources for Load 25,786 25,985 27,828 27,532 30,818 30,817 32,80: 35,217 36,644 37,657 38,563
5. Peak Surplus (Over Total Load) (255) (1,360) (848) (2,514) (344) (1,484) (712) 4 31 543 195 (282) 6 Total Area Energy Load (July-June) 16,743 17,569 18,390 19,326 20,028 20,720 21,423 22,156 22,923 23,717 24,538
7. Net Energy Resources 1/ 15,476 15,676 16,723 17,153 17,519 18,446 19,755 21,353 22,275 23,064 23,917
8. Reserve Requirements (330) ( 318) (330) (325) (324) (336) ( 34 9) (356) (368) (380) (398)
9. Net Energy Resources For Load 15,146 15,358 16,393 16,828 17,195 18,110 19,406 20,997 21,907 22,684 23,519 10 Energy Surplus (Over Total load) (1,597) (2,211) (1,997) (2,498) (2,833) (2,610) (2,017) (1,159) (1,016) (1,033) (1,019)
11. Interruptible Load -Peak 1.079 1,1 34 1.132 1,123 1,133 1,144 1,154 1,165 1,175 1,185 1,195 (Included in Iines I and () -Energy 1,056 1,109 1,092 1,100 1,111 1,121 1,132 1,142 1,151 1,162 1,172
12. Fossil-Thermal & Miscellaneous -Peak - - - - - - - - - - -

Resources (Not included Above) 2/ -Energy 688 683 683 683 683 683 677 677 677 677 677 Probability that Hesources Will Be Insufficient to Meet Total Energy Load in at least 1 Period of 3/

13. Year Shown -7. 37 .9 47.6 43.5 46.2 50.7 44.6 37.5 33.7 36.0 34 .4 37.6 14 Years 1979-80 Through Year Shown -% 37.9 63.6 76.8 85.6 92.2 95.1 96.6 97.5 98.0 98.5 <es.9 Probability that Resources Will Be Insuf ficient to Meet Firm Energy Load in at least 1 Period of 3/
15. Year Shown -% 15.1 20.3 22.0 23.9 27.8 21.7 14.0 10.6 14.7 13.1 15.9 16 Years 1979-80 Through Year Shown -% 15.1 29.0 42.1 53.2 64.6 70.6 74.6 76.9 80.0 82.3 84.'s N / Resources include hydro; small fossil-fuel plants; Han ford-NPR through June 1983; Centralia; Trojan; Colstrip #1 and #2 (50%), #3 and #4 (60%); WPPSS M Nuclear #1, #2, # 3, #4, #5; Hoardman (90%); Skagit #1 and #2; Pebble Springs #1 and #2; and net contractual imports / exports with utilities outside the Q Area. Hanford is not included as a peak resource. Estimated amounts for scheduled maintenance (energy only) and for hydro realization factor (peak only)

N have been deducted. All existing thermal units and future thermal units under 500 megawatts (peak and energy) are included in amounts as submitted by respective project owners. The energy availability of all future thermal units 500 megawatts or larger has been included as 60% of the first full year g and 75% thereafter. 9/ The energy megawatts tabulated in line 12 reflect the amounts of energy available from existing fossil and combustion-turbine installations which may be @ considened available as reserve energy resources. These are predominately petroleum-fueled plants utilizing high-cost fuels of questionable availability. The amounts ate in addition to those included as tim energy resources in line 7. .. 3/ Based on same load and resource data.as other tabulations herein, except ttiat there is no consideration of energy reserve requirements or realization tactor. Study initialized un the basis of full reservoirs on July 31, 1979. An explanation of these probability figures is found in Sectic;. I " Discussion of Detailed Heport" under the subtitle " Energy Reserve Planning Model".

WEST GROUP FORECAST - ESTIMATED LOADS AND RESOURCES - contd. JULY 1979 - JUNE 1990 Sheet 2 of 2 New Generating Units Installed During the Report Period Plant Initial Operation Date of Completion Nameplate Rating Chief Joseph Jan 1979 May 1979 380 Grand Coulee Jun 1979 Jul 1979 1,400 Grand Coulee P tuup-Gene ra to rs Dec 1980 Dec 1981 200 Rock Island Feb 1979 Aug 1979 204 Lower Montunental Feb 1979 Apr 1979 405 lionneville May 1981 Jul 1982 558 Mayfield May 1982 May 1982 40 Libby Nov 1983 Nov 1983 420 Libby Reregulating Jan 1984 May 1984 76 Cougar Sep 1985 Sep 1985 35 S t rube Sep 1985 Sep 1985 4 Colstrip #3 and #4 (607. for Area Resource) Jul 1983 May 1984 980

  • Skagit #1 Sep 1986 Sep 1986 1,330 Skagit #2 Sep 1988 Sep 1988 1,330 Boardman (90% for Area Resource) Jul 1980 Jul 1980 504
  • Pebble Springs #1 N Mar 1987 Mar l')87 1,367 Pebble Springs #2 N Apr 1989 Apr 1989 1,367 Jim Bridger #4 Q Dec 1979 Dec 1979 509 **

Washington Public Power Supply System #2 N Sep 1981 Sep 1981 1,100 Washington Public Power Supply System #1 Dec 1983 Dec 1983 1,373 Washington Public Power Supply System #3 Washington Public Power Supply System #4 3 q Dec 1984 Jun 1985 Dec 1984 Jun 1985 1,316 1,373 Washi inton Public Power Supply System #5 Jun 1986 Jun 1986 - 1,316 Total New Installations 17,587 December 31, 1978 Installed Capacity - Ilydro 24,982

                                       - llanford Steam                                                   800
                                       - Existing Thermal & Miscellaneous                               1,399
                                       - Centralia                                                      1,330
                                       - Colstrip #1, #2                                                  358 *
                                       - Jim Bridger #1, #2, #3                                         1,526 **
                                       - Trojan                                                         1,216         31,611 Total Installed Capacity - Megawatts                                                                                   49,198 Portion of plant shown as a West Group Area resource.

Generation from Jim liridger is included in imports from East.

WEST GROUP FORECAST Discussion of Detailed Report Ob jectives The West Group Forecast is an area report prepared annually by the loads and Resources Subcommittee of the Pacific Northwest Utilities Conf erence Committee. Its objective is to show the estimated peak and energy loads and the peak and energy capabilities of existing and planned resources to meet these requirements. The basic criteria employed in the preparation of the report are described in the following text. Details of estimated loads and resources for the period July 1979 through June 1990 are tabulated in the report. Comparisons of total peak and energy loads with peak and energy resources indicate when deficiencies or surpluses may be expected in the area under adverse streamflow conditions. The probabilities of failing to meet area energy loads are determined for each year. The critical-period hydro energy capabilities have been predicated on coordinated operation of all West Group resources, including the operation of Canadian Storage, as required by the Pacific Northwest Coordination Agreement. In preparing the analy-sis, an attempt was made to shape any surplus or deficiency as uniformly as possible during the critical period. Tabulations " Summary of Resources" include the energy capabil-ity and January peak capability for each of the contract years (July through June) of the report period. Summary tabulations by months for 40 years of water record showing the surpluses over the firm energy load carrying capability are also included. A more detailed analysis of individual plant January peak capabilities and critical-period energy capabilities is tabulated in Section V, " Peak and Energy Capab ility". Operating Area Covered The report area includes the entire state of Washington, the panhandle of Idaho, Oregon except for the southeastern part of the state, a portion of northern California, the Bonneville Power Administration and Pacific Power & Light Company service areas in Montana, and the BPA loads and USBR resources in southern Idaho. It does not include' the service areas of Idaho Power Company, Utah Power & Light Company, The >bntana Power Company, California-Pacific Utilities Company, B.C. Hydro and Power Authority or West Kootenay Powe r and Light Company , Limited . Firm contractual arrangements of utilities operating in the Wes t Group Area with utilities outside this area have been included in sumnary tabulations. 2282 018

Planning Es timates The West Group Area loads used for planning purposes are the sum of the system peak loads and the system energy loads estimated by each of the utilities operating in the area. The resulting total average annual rate of load growth for the area for the 10-year period is approximately 4.1% peak and 3.9% energy. The estimates include an increase in total'BPA industrial load, due to technological changes, of approximately 40 megawatts per year. Despite the reduced load estimate appearing in this year's West Group Forecast, energy deficiencies occur in every year through 1939-90. The total West Group peak and energy loads by months are found in Section VII of the report. Section VII also includes a bu akdown of loads by major utilities. The utilities are keenly aware of the need for accurate load forecasts in the planning and scheduling of resources to meet the projected power requirements. The costs and difficulties of acquiring capital are at historic peaks, and the utility industry is very capital intensive. Therefore, scheduling of resources in advance of need could result in an adverse financial impact on utilities and their cus tomers. Conversely, there would be severe adverse economic ef fects on the people and commerce of this area and a difficult allocation er rationing problem for state govern-ments if there were insufficient resources to meet the power needs. Because of the vital importance of balancing the loads and resources, the load-resource analyses are reviewed at least annually. If experience shows that more than enough resources have been scheduled, the schedules can be corrected by delaying completion; but if too few resources have been scheduled, there may be no way to avoid the public injury from the resulting shortage. The BPA system load excludes Grand Coulee and Roza pumping loads and USBR local use at Grand Coulee, and compensation for these loads is accomplished by reducing Grand Coulee and Roza resources by equivalent amounts. The Forecast reflects plans to provide resources to serve both the peak and energy components of the total Bonneville Power Administration industrial loads, approximately 25% of which may be interrupted for any reason. The BPA interruptible load has been noted in Section VII on the sheet "Information on Loads", and is shown on line 11 in Section I on the summary sheet "Es t imated Loads and Re sources" . These loads operate under contracts which 1 Pending BPA's dev -lopment and adoption of an allocation formula, BPA has not determined that it will serve either the present or new loads of its existing industrial customers after their existing contracts expire. This statement applies to all places in this report that include or make reference to BPA's industrial loads. 2282 019

do not assure a firm power supply; therefore, it is to be expected that these loads might be curtailed if necessary curing an adverse water year. Peak load estimates are based on 60-minute clock-hcur averages. Within the hour, short-time loads vill be in excess of the hourly average. However, peak load diversities between systems result in an area peak lower than the sum of system peaks. The short-time peak loads in excess of the hourly average and the diversity in system peak loads are of the same general magnitude and tend to cancel each other. Energy loads on the summary sheets are shown as a July-June average. Econometric Model Es timates During the last three years the PNUCC has utilized an econo-metric load forecasting model to forecast West Group loads for the purpose of checking the reasonableness of the forecast of West Group Area loads prepared by the area utilities. The model was originally developed by a nationally recognized consulting firm and provided to the PNUCC in January 1976. Since that t ime , the Model Review Subcommittee of Task Force 6 of the PNUCC has continued to maintain a current data base and deselop the model to improve its forecasting capabilities. The PNUCC model, as with any econometric model, attempts to quantify relationships between electric energy demand and various causal factors. These relationships are developed through statis-tical analysis of historical data. The model handles each of the three major load classifications (namely, residential, commercial and industrial) separately. The residential sector is disaggregated to consider the saturation levels of various energy end uses. Within the industrial sector, ten industry types are separately forecast. The PNUCC econometric model is a valuable tool for analyzing Wes t Group Area loads for several reasons. Fi rs t is its ability to explicitly handle price and income ef fects. With the recent dramatic increases in energy prices and expected future increases, it is particularly important to quantify their impact on electric loads. Second is its ability to accept forecasts of demographic and economic factors, such as population and employment, thus providing some consistency between regional forecasts of these factors. Third, this is the only model availab1' which covers the entire Wes t Group Area. Finally, given a set of input values. the model will always produce the same results. This f acilitates testing the sensitivity of forecasted loads to changes in ir. guts or model structure without being influenced by prejudices of the person running the =odel. Howeve r , che model has limitations which must be considered when interpreting results. The model's results are dependent on _3 2282 020

forecasts of population; f amily income; employment; prices of oil, gas at.d electricity; and so on. Even if the model perfectly simulated the historical relationships between these f actors and electric loads, the projected loads could be no better than the forecasts of these factors. In an effort to improve the accuracy of these forecasts, the input values for this year's forecast were prepared during a two-day workshop. The intent of the workshop was to bring together individuals representing a broad range of backgrounds and interests who could provide their expectations concerning the economic and political factors affecting the input values. Half of the nearly 70 participants were nominated by the States of Idaho, Oregon and Wash.ngton and represented various state agencies, and environmental and consumer groups. The remaining participants were members of the PNUCC's Task Force 6. Inputs addressed in the workshop were oil prices, gas prices, conservation, per capita income, population and persons per house-hold, and solar energy savings. A separate session was held for each input during which two or more experts presented background information on the input and their views of the future input values. Time was provided for the participants to ask questions, discuss the presentations and present their own views. Following each session, each participant was asked to forecast values of the inputs. Fo r mo s t inputs three values were required: a most probable, a reasonable low, and a reasonable high. The reasonable low and reasonable high values were to represent a 90 percent confidence level. These values were entered into the model's data base for use in forecasting electric sales. The scenario results of the most probable, reasonable low, and reasonable high votes will be included in the documentation. An advantage of selecting input values with this procedure is that it incorporates the judgement of a large number of individuals including minority opinions. The workshop also was useful in bringing together individuals f rom various groups involved in energy forecasting to share views on important input values. A computer program was used to randomly draw one value for each of the most probable inputs with each participant's choice having an equal probability of being drawn. The model was then solved using these values and the results recorded as one possible future. The process was repeated 500 times to produce a distribu-tion of future electric loads resulting from the randomly selected input values. The average of the 500 forecasted annual energy growth rates during the period July 1979 through June 1900 is 3.9 percent. The 90-percent confidence band of the f orecasted annual growth rates provides a range from a low of 3.0 percent to a high of 4.3 percent. This large range of growth rates produced by the econometric model indicates the uncertainty in forecasting electric loads. __ ?282 021

The fact that both the West Group Forecast and the average of the 500 econo tetric model runs resulted in an annual growth rate of 3.9 percent cannot be construed as indicating precision in forecast-ing. If any of the input values to the econometric model were changed, the average of the 500 runs could have been different, but would likely have f allen within the 3.0 to 4.8 percent range. Further, econometric models assume that responses to economic conditions will be the same in the future as they have been in the past and that no changes in technology, governmental regulation or international politics will occur * ; upset the validity of the model. For these reasons, an econometric model provides a valuable tool for analyses but cannot be expected to provide a precise forecast of future growth or even predict a narrow band of possible growth projections with a high degree of confidence. A complete description of the model and the model results are contained in a report prepared by the Model Review Subcommittee. New Resources New hydro projects included in the determination of the January peak and firm energy capabilities in the report are those considered to be assured. All federal projects included are authorized projects which are under construction or have been funded for construction or preconstruction planning. Nonfederal hydro projects include additional capability at High Ros s . A license application has been issued by the Federal Energy Regulatory Commission (now pending before the U.S. Circuit Court of Appeals) to raise the height of Ross Dam to a new lake elevation of 1725 feet over the present lake elevation of 1602.5 feet. The energy resources include the generation in the United States resulting from the storage regulation of the three Canadian reservoirs (Duncan, Arrow, and Mica) in ccordination with the Libby reservoir and other power facilities in the West Group Area. No adjustments were made in downstream project power capabilities for the return of Canadian Entitlement to Canada inasmuch as the power has been purchased on a long-term basis by utilities in the Pacific Northwes t. This year's report assumes Libby generation will be reduced in 1984 due to water being diverted f rom the Kootenay River to the Columbia River at Canal Flats in Canada. The new projects scheduled as part of the area's resources plan for meeting loads through 1989-90 are listed in Section II, and a chronological tabulation of the expected cumulative hydro nameplate ratings is given in Section IV. Section II also includes an enumeration of the various hydro projects which are under consideration in this area but were no t included in the calculations. 2282 022 New thermal plants included in this year's report are those for which siting certificate applications have been made and the Pacific Northwest Utilities Conference Committee considers essential if the area's load requirements are to be met through the year 1989-90. The new thermal projects include some f rom which only part is scheduled as a West Group resource in meeting load require-ments. These include 60 percent of Colstrip Units #3 and #4 and 90 percent of Boardman. Pacific Power & Light Company's (PP&L) 66-2/3 percent share of Jim Bridger plant continues to be available to serve West Group loads for a number of years; however, because of the delay in the receipt of all permits necessary to construct the Midpoint-Malin 500-kv transmission line providing additional transmission capacity between Wyoming and the West Group, the amount of power and energy available from Wyoming has been reduced by the amount bo ttlenecked in Wyoming. This is reflected in the imports from Eas t Group u;i' 4 rtes along with PP&L's surplus Wyoming system generation after meeting Wyoming's firm loads. The ."ddpoint-Malin line is assumed operational in September 1981. The energy capabilities of large new thermal resources (500 megawatts or larger), are computed on an annual plant factor increasing from 60% for the first full year of operation to 75% for all years thereaf ter. The plant factors include allowance for scheduled maintenance outages. PNUCC Task Forces are continuing evaluation of appropriate plant f actors for planning. The scheduled dates of new thermal resources as shown in Section II are as submitted by the project sponsors; however, the peak and energy capabilities from such plants are based on the

   " Probable Energy Date" as later described in the text.      The " Summary of Resources" tables in Section III show zeros in the intervening periods.

For new thermal plants under 500 megawatts, the energy capabili-ties used are those submitted by the plant construction agent. This year's report shows all thermal energy generation as a July-June average. The impact of the second Bacon siphon and tunnel for the Bureau of Reclamation's Columbia Basin Project is not reflected in this year's report. Negotiations with the water users have not reached a point where realistic estimates of increased pumping can be made. Any changes are expected to be gradual. Joint Area Planning The Pacific Northwest's publicly- and cooperatively-owned systems , investor-owned ut ilities , BPA and the Corps of Engineers have historically cooperated in informal, long-range planning with respect to future regional power requirements. BPA's participation in regional programs, together with other alternatives, has been considered in a "Draf t" Role Environmental Impac t Statement that is now being put in a final form. BPA is also developing a policy 2282 023

for allocating its power supply amongst its existing customers and competing bids from potential new customers. There is proposed legislation before the Congress that could have a substantial impact on regional power planning. The scheduled dates for commercial operation of the new thermal facilities are the dates determined by the sponsoring utility for each plant. Experience throughout the United States has conclusively demonstrated in the last few years that many more large thermal plants are delayed beyond their scheduled completion dates than are completed on time. The reasons are many and may be caused by delays at any point along the paths of their respective development programs. Which plants may be delayed and for what reason or for how long cannot be anticipated in advance. Yet, on the average they will be delayed; and if the area were relying on firm resources based on every project being completed on its scheduled commercial operation date, the area's planned capacity and energy would not be realized. It is important that the area's indicated resources realisti-cally reflect the energy and capacity which can be expected on the average, recognizing that some of the scheduled completion dates will not be met. The capacity and energy resources in this report are therefore based on a Probable Energy Date which is the later of the Scheduled Operation Date or the Milestone Date. Milestones Milestone dates are detennined from a standardized schedule reflecting anticipated average planning and construction times. The Milestones provide a means for utilizing a standardized schedule without upsetting the developmental program of each project planned by its sponsor. It is considered essential that each sponsor vigorously pursue his planned schedule in order that the area's planned levels of energy and capacity can be achieved despite the inevitable delays at some projects. The Milestones are designed to reflect possible plant delays in excese of those considered in the scheduled Commercial Operation Dates. The causes for these delays include many which are not under the control of the building agency or utility. These include litigation and ever-changing procedures affecting site approvals, cons truction permits , and licensing. It is not anticipated that they will occur at each plant, but rather that the delays will be greater at some and less at others, with the consequence that the region's energy and' capacity resources will be properly estimated by applying an average delay to each plant. Milestones are reviewed each year and modified whenever required by changed conditions. More lead-time is required for a thermal plant in Oregon than in the other states of the West Group Area because a 120-day notice of intent is required before the application for site certification is filed. The Oregon Facilities Siting Council is then allowed two years for a decision. 2282 024

A project sponsor may select a schedule of greater duration than that indicated by the Milestones, and it is assumed that where this is done the schedule of activities leading to the indicated date for commercial operation is such that the scheduled date is the most probable date. A tabulation is included which compares thermal plant schedules as submitted by project sponsors and the Probable Energy Date. Charts showing the Milestones for both coal-fired and nuclear plants are also included at the end of this sectinm Present Re sources Present resources include all generating resources presently available within the area. Small fossil-fuel plants and combustion turbines have been included as firm resources in the amounts submitted by each of the project owners. Where these plants are included as peaking resources and the firm energy included is the amount associated with such peaking operations, the remaining energy capability is considered available for energy reserves. However, these are petroleum-fueled plants utilizing high-cost fuels of questionable availability. The Hanford-NPR project has been included as a firm energy resource through June 1933. Due to its frequent refueling cycle, the project is not considered dependable as a peak resource, and is, therefore, not included as such. All existing thermal plants regardless of size have been included as firm resources in the amounts submitted by the plant operator. Interchanges With Systems Outside the Area The resources include firm arrangements for interchanges with systems outside the reporting area. These arrangements (excluding PP&L's Wyoming transfers) are firm contracts with utilities to the Ea s t , Canada, assignment of Canadian Entitlement Exchange Powe r to the State of California, deliveries of power to the Central Valley Proj e ct , and capacity sales and exchanges with California utilitiet. Transfers to the Pacific Southwest are amounts delivered to the California-Oregon border. The incremental losses to the border associated with deliveries to Central Valley Project, Canadian Entitlement Assignment and peak / energy exchanges are shown on the "Scamary of Resources" sheets. These losses were deducted in determining the amount of peak and energy available to meet area requirements. Further breakdowns on interchanges with systems outside the area are tabulated in Section VI to permit users to more readily assess the effect of these transactions on area requirements. All energy transfers have been included as a July-June average. _s_ 2282 025

Reservoir Operation A comprehensive analysis of monthly secondary energy using historical flows of record was made for all load years. Through this type of studies it is possible to analyze area resources and study reservoir regulations that would occur for all water years including those with minimum runof f and those with ext remely high runoff. In making these analyses, procedures as developed undar the Pacific Northwest Coordination Agreement were followed. In computing the critical-period energy capability, all reservoirs in operation prior to the beginning of the operating year being studied were assumed to be full at the beginning of the storage control period and draf ted to their normal bottom elevation by the end of the critical period to produce maximum firm energy and establish critical rule curves. This maximum firm energy becomes the Firm Energy Load Carrying Capability (FELCC) of the system. The 40-year studies assumed that all reservoirs were full at the beginning of the first year of the 40-year pariod. Reservoirs were drafted to energy content curves except uhen draf ts below energy content curves were needed to carry FELCC. When draft below energy content curve was required, an attempt was made to draft all reservoirs a proportionate amount between energy content curves and critical rule curves. The energy content curves were adjusted in each month from January to April on the basis of subsequent runoff during that year to produce the maximum amount of secondary energy censistent with the requirements for refilling the reservoirs. In addition, flood control requirements developed by the U. S. Corps of Engineers for each of the major reservoirs were considered as a mandatory draf t whenever the energy content curve was above the flood control requirement. Where reservoirs h ve restrictions on their operation for power productic those restrictions were observed in setting up the draft scheduies in these analyses. Restriction o,n Usability of Resources The Uniform Regional Planning Assumptions adopted by the PNUCC state that each 'ystem will take into account the ability of hydro generation to achieve claimed capability. Under this crite-rion BPA last year submitted a 5 percent realization factor nn the January peak capability of the Federal system. This f actor was an adjustment representing the reduction in capacity which would result in actual operation from inability to maintain all pools at their optimum levels from environmental restrictions, etc. This year the Federal System realization f actor concept has been modified to re flect its inability to maintain generating capabilities equal to load requirements over the extended 6- to 10-hour heavy-load periods. An adjus tment amount has been deter-mined by which the total Federal 1-hour peak value has been reduced to obtain the to*al Federal sustained peak value for each January. In addition to the reduction for sustained peak, tailwater constraints have been imposed on operations at Grand Coulee which reduce the peaking capability for years 1980 through 1983. In order to re flect this condition, an adjus tment amount of 1,54 , megawatts has been deducted in this year's report in the first 4 years. Thus, this year a Federal peak adjus tment value (hydro realiza-tion factor) is shown which is the total of these two amounts and varies f rom 3,963 megawatts in January 1930 to 2,590 megawatte in January 1990. Consequently, the Total Peak Resources shown on the summary sheet in Section I have been reduced by these amounts. Hydro energy capabilities have not been reduced to reflect energy loss due to spill and discharge requirements f or downstream fish migration. Except for the bottleneck in transferring PPSL's Wyoming resources to the West Group, it has been assumed that there will be no restrictions on the utilization of all the availtble resources because of bot tlenecking transmission lines, trans formers, e tc. , or because of reactive loading of generating facilities. Scheduled .'bintenance In order to provide an indication of the maintenance normally undertaken in the Pool, we have included estimated amounts for scheduled maintenance in derivation of energy capabilities. These amounts are shown on tabulations " Summary of Resources". The acounts of maintenance for hydro and existing small theraal resources are based on a procedure developed by the Coordinating Group of the Northwest Power Pool and utilize a percentage of energy capabil-ities by months. The hydro maintenance used in the derivation of January peak capabilities is included as part of the reserves used in this report which were determined by the percentage method. Reserve Requirements In the derivation of January peak capabilities, reserves have L e. deducted from the tabulation of peak resources. The area peak reser/es used are the greater of (1) f orced-outage reserves as computed under the Pacific !brthwest Coordination Agreement plus one-half year's load growth for utility-type loads plus hyd ro maintenance or (ii) 12% reserve for the first year of the study, increasing 1% per year to 20% and ramaining at 20% thereafter. The reserve requirements are shown in Section I on the summary sheet "Es timated Loads and Re sources" . 2282 027 The percentage nethod has been the controlling f actor for the month of January oetween these two methods since they were initiated in 1974 and is used in this report. These reserves are used primarily for long-range planning and take into account forced-outage reserves, hydro maintenance, unanticipated load growth, project construction delays, and other contingency-type reserves. The percentage reserve method was a consensus of the representatives of PNUCC members to reflect peaking requirements, taking into account that new resource con-s truction may take up to ten to twelve years and that a project may be delayed much more easily than it can be accelerated. The area energy reserves shown in Section I on the summary sheet are one-half year's load growth for utility-type loads. Ene rgy Reserve Planning Model The Energy Reserve Planning Fbdel was developed to provide an improved method for analyzing the load-resource relationship in a hydro-based system increasingly dependent on thermal generating facilities. Our traditional techniques have combined an extremely comprehensive treatment of hydro energy capabilities with a single-

'alued estimate of thermal energy generation, and they have only partially reflected the responses of operating policies to system conditions. So long as the proportion of thermal energy generation in the system was quite small, these established methods were adequate.

In the future, however, the reliability of energy supply will be af fected not only by the vagaries of hydro runof f, but also by the uncertainties of thermal plant construction and availability once in service. These plants individually represent large portions of the total energy supply, and their lead-times, at best, are very long. A single plant's delay in construction or poor perfor-mance af ter completion might have a profound impact on system reliability, which cannot be measured in an analysis where the plant is represented as having a single probable installation date and a single average capacity factor. Along with the uncertainties of hydro and thermal energy capab ili tie s , the wide range of possible energy loads on the system in future years contributes to the doubts about the suffi-ciency of reliability evaluations based on single-point estimates. The >bdel is a probabilistic simulation program, designed to treat rigorously the four general components of the energy load-resource p icture--hyd ro, thermal plant construction, thermal plant availability, and load--combined with logic which operates the system model realistically in response to simulated conditions of these components. Ic is based on a modelling technique called Monte Ca rlo Simulation, in which statistical results are derived from a mass of repeated trials. Within each trial, the model 2282 023

system is operated into the future continuously, and the state of each variable in each time interval is determined by a random draw from an appropriate probability distribution. Each trial, therefore, represents a possible real outcome, but many trials are necessary before a statistically valid conclusion can be drawn about the future. The probabilities shown in this report are based on a study comprising 2,000 trials. At the beginning of each trial, storage contents are defined on the basis of the latest available forecast at the time of the study.

        .The representation of energy load in the program presently has no probabilistic features; a list of load forecasts is input and used as fixed quantities. Work is continuing on logic which will treat the forecasted loads as a trend about which yearly deviations will be randomly generated.

As it stands, the Energy Reserve Planning Model is believed to be a significant advance in the state of the techniques available to analyze the energy load-resource situation. But it is not a finished product, nor will it ever be. Efforts to improve its structure and data will be continuous, and frequent program changes are expected. The probabilities of the resources being insufficient to meet the total energy loads during each year of the forecast period and cumulatively through the forecast period are shown on lines 13 and 14 of the preceding tabulation of loads and resources. The proba-bilities of an insufficiency increase to a maximum of 50.7 percent in the year 1983-84 and continue at a very high level throughout the forecast period. The cumulative probabilities of insufficiency show that there is a 92 percent probability of insufficiency prior to 1984-85 and a 98.9 percent probability that an insufficiency will occur during the forecast period. The corresponding figures for resources being insufficient to meet firm energy load are shown on lines :5 and 16. They reach a maximum of 27.8 percent in 1983-84 and incicate an 85 percent probability of insuf ficiency sometime during the forecast period.

                                      ** .m 2282 029 l

THERMAL PLANT SCHEDULES SCHEDULED PROBABLE CAPABILITY COMMERCIAL ENERGY PLANT MW OPERATION DATE 1/ Jim Bridger 4 500 Dec 1979 Dec 1979 2/ Boardman 530 Jul 1980 Nov 1980 WNP 2 1100 Sep 1981 Sep 1981 1 1250 Dec 1983 Dec 1983 3 1240 Dec 1984 Mar 1985 4 1250 Jun 1985 Jun 1985 5 1240 Jun 1986 Jun 1986 3/ Colstrip 3 700 Jul 1983 Jul 1983 4 700 dby 1984 May 1984 Skagit 1 1288 Sep 1986 Nov 1986 2 1288 Sep 1988 Nov 1988 Pebble Springs 1 1260 Mar 1987 lbr 1987 2 1260 Apr 1989 Apr 1989 1/' Generation f rom Jim Bridger is included in imports f rom East. 2/ 90% of this unit is dedicated as a West Group Area resource. 3/ 607 of each uni t is dedicated as a West Group Area resource. 2282 030

MILESTONES COAL FIRED THERMAL PLANTS y too 90 I! 80

                                                                                       ~
                                                                  /                70  W
                                      $                         [                 **

8G j b CE / '

                                   $$                      /                           O EE                    /                             W
                                   $8                 I/                               !

20 MILESTONES g 3,

                ,   ,    ,                                                           0 so    70         60   50    45  60  35   30  25   20   15 10 5    0 MONTHS TO PROBABLE ENERGY OATE PRECONSTRUCTION MILESTONES MILESTONE O    80 months      (Oregon only) Notice of Intent filed with state 76 months      (Oregon only) Application for Site Certificate filed MILESTONE 1    62 months      Final site selection MILESTONE 2    58 months      Boiler and Turbine Generator ordered MILESTONE 3    52 months      Environmental and Siting Permits, Licenses, etc.,

issued M,lLESTONE 4 50 months Start site preparation MILESTONE 5 48 months Start construction 2282 031

MILESTONES NUCLEAR THERMAL PLANT I 1,

                                                                 /          I      .0 8

G Yl 'o C E [ l l 5 a. m .0

                            $                                 lI                   30 8

_flIi I ., g

                                                                                   >0 m

l l l l0 b% MILESTONES , i 33

     .9 !      2 3 4 5                             l                            ,

t;0 110 100 90 80 70 60 50 40 10 ;J 10 $ 0 MONTHS TO PROBABLE ENERGY DATE PRECONSTRUCTION MILESTONES MILESTONE O 118 months (Oregon only) Notice of Intent filed with state MILESTONE 1 114 months Regional selection of unit (Oregon only) Application for Site Certificate filed MILESTONE 2 102 months Following Actions completed: (a) NSSS contract awarded (b) AE selected (c) (Except Oregon) Site selected MILESTONE 3 98 months Project becomes firm resource after following actions completed: (a) Enviranmental Report filed (b) Preliminary Sefety Analysis Report filed (c) (Except Oregon) State site application filed MILESTONE 4 90 months Site certified by state MILESTONE 5 86 months Construction Permit or Limited Work Authorization issued by AEC 2282 032

c 5 SECTION 11 8 E Additional Generatine Caoacity @ Actually installed - January 1978 through December 1978 Scheduled for Service - January 1979 through June 1990 Partial List of Plants Under Consideration 2282 033

NEW CENERATING CAPACITY ACTUALLY INSTALLED JANUARY 1978 TIIROUGil DECEMBER 1978 Unit Nameplate Capability Date of Plant No. Location Type Rating-Mw Expected-ttw operation Bonneville Power Administration Chief Joseph (USCE) 20 Bridgeport, Washington Ilydraulic 95.0 each 102.9 each Feb 1978 21 Jun 1978 22 Jun 1978 23 Aug 1978 Little Goose (USCE) 4 Starbuck, Washington Ilydraulic 135.0 each 155.25 each Jan 1978 5 May 1978 N 6 Dec 1978 N Grand Coulee (USBR) 22 Coulee Dam, Washington Ilyd ra ul ic 700.0 805.0 May 1978 o Lower Granite (USCE) 4 Almota, Washington flydraulic 135.0 each 155.25 each Feb 1978 u 5 Apr 1978 A 6 May 1978 The Wash _ington Wat er Powe r Compay Noatheast Turbine 1 Spokane, Washington Comb. Turbine 61.2 68.0 Dec 1978 Chelan_ County PUD Rock Island 18 Rock Island, Washington flydraulic 51.0 each 51.0 each Jul 1978 17 Aug 1978 16 Oct 1978 15 Dec 1978

  ~.y * %~

NEW GENERATING CAPACITY SCllEDULED FOR SERVICE JANUARY 1979 TIIROUCit JilNE 1990 Sheet I of 2 EXPECTED DATE NAPIPIATE CA PAB il. ITY OF COMMERCIAL PI ANT IfNIT NO. liX'AT ION TYPE HATING-MW EXPEC1ED-MW OPERATION Bonneville Power A<! ministration Chief Joseph (USCE) 24 Bridgeport, Washington liydraulic 95.0 each 102.92 each Jan 1979 25 Jan 1979 26 Mar 1979 27 May 1979 Grand Coulee (USBR) 3rd Powerhouse 23 Coulee Dam, Washington Ilydraulic 700.0 each 805.0 each Jun 1979 24 Jul 1979 Pump-Cenerator Additions P/G- 9 Pumped 50.0 each 57 .5 e ac h Dec 1980 P/G-10 Storage Apr 1981 P/G-ll Aug 1981 P/G-12 Dec 1981 Lower Monumental (USCE) 4 Matthew, Washington liydraulic 135.0 each 155.25 each Feb 1979 5 Mar 1979 6 Apr 1979 Bonneville (USCE) 2nd Powerhouse F-1 Bonneville, Washington Ilydraulic 13.1 15.1 May 1981 F-2 13.1 15.1 May 1981 18 66.5 each 76.5 each May 1981 17 Jul 1981 16 Sep 1981 15 Nov 1981 14 Jan 1982 13 Mar 1982 I\) 12 May 1982 P\) 11 Jul 1982 CD f%s) Libby * (USCE) 5,6,7,8 Jennings, Montana liydraulic 105.0 each 120.7 5 each Nov 1983 C:2) Libby Heregulating * (USCE) 1 1.ibby, Montana liydraulic 15.4 17.7 Jan 1984 (jg 2 30.5 35.0 Mar 1984 ,y , 3 30.5 35.0 May 1984 Cougar (USCE) 4 Rainbow, Oregon Ilydraulic 35.0 40.3 Sep 1985 Strube (USCE) 1 Rainbow, Oregon liydraulic 4.5 5.2 Sep 1985

  • Scheduled operation dates are tentative pending litigation.

Note: A chronological '.abulation of new hydro installations appears in the section on nameplate ratings.

NEW GENERATING CAPACITY SCllEDU).ED FOR SERVICE -contd.

                                                                     .fANilARY 1979 TifHollGil JI!NE 1990                                      Sheet 2 of 2 EXPECTED kwTE NAMEPIATE  CA P AB II.11Y OF COffiERC F AL PI AN r                      UNIT NO.               liCATION                       TYPE        RATING-MW  EXPECTED-MW      OPERATION Chelan County PUD Rock Island                                   14         Rock Island, Washington              Ilyd raul ic   51.0 each   51.0 each        Feb 1979 13                                                                                          Apr 1979 12                                                                                          Jun 1979 11                                                                                          Aug 1979 Seattle City 1.lyht liigh Ro>s                                    --         Rockport, Washington                 Ilydraulic     --

251.0 total 1983-84 Tacoma City 1.lyht Mayt'ield 4 Mayfield, Washington flyd raul ic 40.5 45.0 May 1982 l'u v e t Simnd Power 6 1,1yh t Company Colstrip (607 of units) 3 Celstrip, Montana Steam 700.0 each 700.0 each Jul 1983 4 May 1984 Skagit 1 Sedro Woolley, Washington Nuclear 1330.0 each 1288.0 each pp 1986 2 Sep 1988

    'ortland General Electric Company Boardman (901 of unit)                            1       Boardman, Oregon                    Steam          560.0       530.0             Jul 1980 N

Pel>ble Springs 1 Arlington, Oregon Nuclear 1367.0 each 1260.0 each Mar 1987 O 2 Apr 1989 Le4 A Pacific Power 6 1.lyht Company Jim Bridger (66.677. ot unit) 1/ 4 Rock Springs, Wyoming Steam 508.6 500.0 Dec 1979 Washineton Public Power Supply System WNP #2 1 Richland, Washington Nuclear 1100.0 1100.0 Sep 1981 WNP #1 1 Richland Washington Nuclear 1373.0 1250.0 Dec 1983 WNP #3 1 Satsop, Washington Nuclear 1316.0 1240.0 Dec 1984 WNP #4 1 Richland, Washington Nucl(ar 1373.0 1250.0 Jun 1985 WNP #5 1 Satsop, Washington Nuclear 1316.0 1240.0 Jun 1986 1/ Ceneration trom Jim Bridger is included in imports from East. Note- A chronological tabulat.5on of new hydro installations appears in the section on nameplate ratings.

PARTI AL 1.lST OF NIN CENEPr.I'ING CAI ACITY l'NDER CONSIDERATION No. NA!! EPI. ATE CAPABILITY OF RATING EXPECTED PiANT UNITS LOCATION TYPE MW MW Bonneville Power Administration Anderson Ranch (USBR) Addition 1 S. Fork Boise River, Idaho liyd ra ul ' c 13.5 17.25 Ben Franklin (USCE) 16 Ringold, Washington fly d r a u'. i c 53.0 each 61.0 each Cougar (USCE) Addition 1 Blue River, Oregon flydraulic 35.0 40.25 loorshak (USCE) Additions 3 Absahka, Idaho liy d ra ul i c 220.0 each 253.0 each Cardio Valley (USBR) 4 Carden Valley, Idaho liy d ra ul i c 43.75 each 43.75 each Carden Valley Reregulating (USBR) 4 Carden Valley, Idaho Hydraulic 9.0 each 9.0 each Grand Coulee 3rd Powerhotose (USBH) 6 Coulee Dam, Washington llydraulic 600.0 each 690.0 each John Day (USCE) Additions 4 Rufus, Oregon flyd r.s ul i c 135.0 each 155.25 each Lucky Peak (USCE) Power Additions 2 Boise, Idaho llyd raulle 17.5 each 20.15 each 1 57.4 60.0 Lynn trandall (USBR) 4 lle i s e, Idaho llydraulic 60.0 each 60.0 each McNary (USCE) Add i t ions 10 Umatilla, Oregon  !!ydraulic 105.0 each 120.75 each Palisades (USBR) Additions 2 lalisades, Idaho flydraulle 67.5 each 77.62 each Upper Scriver Creek (USBR) 3 Carden Valley, Idaho flyd ra ulic 12.5 each 12.5 each 1.ower Scriver Creek (USBki 4 Carden Valley, Idaho  !!yd ra ulic 30 .0 each 30 .0 each Strube (USCE) 1 Blue River, Oregon flyd ra ulic 4.5 5.17 Twin Springs (oSCE) 2 Boise River, Idaho liy d r a ul i c 15.0 each 17.25 each 2 30.0 each 34.5 each Chelan County PUD Antilon 4 Manson, Washington Pumped Storage 400.0 each -- .th udl as County PUD Brown's Canyon 4 Waterville Plateau- Pumped Storage 250.0 each 250.0 each Lake Entiat, Washington Grant Coung PUD Priest LpW Additions 6 Mattawa, Washington Ilydraulic 78.85 each 67.3 each Wanspum Additions 6 Beverly, Washington Ily d ra ul i c 8 3.125 each 75.8 3 cach Northern Livhts d h Kootenal Falls N 2 Troy, Montana flyd ra ul i c 70.0 each 80.5 each N Pacif',e Powei & I.fgh t Company y Klanuth River !)evelopment g - Klamath River Ilydraulic 2 30.0 --

   %,l e                                                              -

Amboy, Washington Pumped Storage 500.0 500.0 C.~.) Pend Oreille County PUD Sullivan Creek - Metaline Falls, Washington liydraulic 13.6 -- N Seat?1 City Light Copper Creek - Rockport, Washington llydraulic -- 120.0 'l a rous . City Light _ Mos.yrott Addition 1 Mossyrock, Washington flydraulic 150.0 192.0 -

SECTION 111 Resources and Recuirements - Summary Tabulations Peak (January) and Energy Surplus or Deficiency Year Studies .o 8 U 2282 038 C i

SUMMARY

OF HESOURCES .IANUARY LEAK CAPAhll.1TY - Mw 1979-80 1980-81 1981-82 1982-83 1983-84 1984-85 1985-86 1986-87 1987-88 1988-89 1989-90

1. ilydro 1/ 29,505 29,629 30,081 30,372 30,891 31,060 31,202 31,139 31,249 31,187 31,213
2. Small Existing Thennal 1,399 1,393 1,393 1,39 3 1,393 1,393 1,386 1,386 1,386 1,386 1,386
3. Miscellaneous (Industrial) 23 23 23 23 23 23 23 23 23 23 23 4 Centralia #1 and #2 1,313 1,313 1 ,31 3 1,31 3 1,31 3 1 , 31 3 1 , 31 3 1,31 3 1 ,31 3 1 , 31 3 1, al 3
5. Colstrip F1 and #2 330 330 330 330 330 330 330 330 330 330 330
6. Trojan 1,130 1,130 1,130 1,130 1,130 1,130 1.1 30 1,130 1,130 1,130 1,1 30
7. Boardman -

477 477 477 477 477 477 477 477 477 477

8. WNP #2 - - 1,100 1,100 1,100 1,100 1,.90 1,100 1,100 1,100 1,100
9. Col-trip #3 - - - - 420 420 4 1 420 420 420 420 10 WNP #1 - - - - 1,250 1,250 1,2 m 1,250 1,250 1,250 1,250
11. Colatrip #4 - - - - - 420 t 420 420 420 420
12. 4 - - - - - 0 1,.. 1,240 1,240 1,240 1,240 13 - - - - - -

1,1.5 1.250 1,290 1,250 1,250 14 WNP #5 - - - - - - 1,240 1.240 1,240 1 ,24 0

15. Skagit #1 - - - - - - - 1,288 1,288 1,288 1,288 16 Pebble Springs #1 - - - - - - - 1,260 1,260 1,260
17. Skagit #2 - - - - - - - - 1,288 1,288 18 Pebble Springs #2 N - - - - -

1,260 N

19. Total Resources g 33,700 34,295 35,847 36,138 38,327 38,916 41,541 44,006 45,376 46,602 47,888 20 Exports 2/ (2,066) (2,108) (1,754) (1,760) (1,562) (1,563) (1,565) (989) (248) (106) (108)
21. Imports -2/ 1,324 1,415 1,840 1,781 1,641 1 ,57 2 1,498' 1,417 1,332 1,240 1,142 C.-)
22. Incremental Losses 3/ U (84) (84) (57) (57) (50) (50) (50) (26) (1) - -
23. Hydro Realization Factor 4/ 4 (3,963) (3,978) (4,033) (4,063) (2.552) (2,573) (2,589) (2,582) (2,595) (2,587) (2,590) 24 Net Peak Resources 28,911 29,540 31,843 32,039 35,804 36,302 38,835 41,826 43,864 45,149 46,332 1/ Tabulations of the hydro plants for the Columbia Mainstem, Seasonal, and Pondage and Minor categories are shown in Section V.

2/ Tabulations of the exports and imports for the Southwest, East, and Canada are shown in Section VI. 3/ Incremental losses froin generator to border are associated with deliveries under contracts with Pacific Southwest utilities. }/ These figures represent Federal System reductions for tallwater constraints at Crand Coulee through 1982-83 and for sustained system peak.

SUMMARY

OF HESOURCES CONTRACT YEAR FNERGY CAPABil.lTY - Hw 1979-80 1960-81 1981-82 1982-83 1983-d4 1984-85 1985-86 1986-87 1987-88 1988-89 1989-90

1. Ilydro 1/ 12,037 12,069 12,103 12,101 12,130 12,101 12,108 12,128 12,137 12,131 12,081 2 Small Existing Thermal 155 1 54 154 154 154 154 153 153 153 153 153
3. Miscellaneous (Industrial) 9 9 9 9 9 9 9 9 9 9 9 4 llanford Steam 2/ 515 515 515 515 - - - - - 1 -
5. Centralia #1 and #2 903 903 957 914 1,000 957 870 914 935
6. Colstrip #1 and #2 957 935 251 251 251 251 251 251 251 251 251 251 251
7. Trojan 800 800 800 800 800 800 800 800 800 800 800
8. Boardman -

191 334 358 358 358 358 358 358 358 358 9 WNP #2 550 798 825 825 825 825 825 825 825 10 Colstrip #3 - - 252 31 5 315 315 315 315 315

11. WNP #1 - - -

438 860 938 938 938 938 938

12. Colstrip #4 - - -

42 262 315 31 5 315 315 315

13. WNP #3 - - -

248 806 930 930 930 930 14 WNP #4 - - - - 62 766 938 9 38 9 38 9 38

15. WNP #5 - - -

62 760 930 930 930 16 Skagit #1 - - - - - - -

                                                                                                                                $15        902        966        966
17. Pebble Springs #1 - - -

252 819 945 945

18. Skagit #2 pgj - - - - - - - - -

515 902 19 Pebble Springs #2 pgy - - - - - - - - - 189 ___P93 20 Total Resources 14,670 14,842 15,673 15,900 16,259 17,229 18,569 20,381 21,555 22,465 23,394

21. Exports 3/ (629) (665) (562) (351) (203) (205) (207)

Imports l/ CZ) (209) (201) (174) (177)

22. 1,489 1,503 1,657 1,640 1,495 1,455 1,426 1,21 5 955 807
                                     -C:m.                                                                                                                       734
23. Inc remen tal 1.osses 4 / CE) (20) (20) (11) (2) - - - - - - -

24 Estimated Ilydro Maintenance (34) ( 34) (34) (34) (32) (33) (33) ( 34) ( 34) ( 34) ( 34 )

25. Net Energy Resources 15,476 15,676 16,723 17,153 17,519 18,446 19,755 21,353 22,275 23,064 23,917 26 Thermal 6 Hiscellaneous Resources 5/ 688 683 683 683 683 683 677 677 677 677 677 (Not included above) 1/ Tabulations of the hydro plants for the Columbia Mainstem, Seasonal, and Pondage and Minor categories are shown in Section V.

2/ tlantord-NPR operation is available through June 1983 3/ Tabulations of the exports and imports for the Southwest, East, and Canada are shown in Section VI. 4/ Incremental losses from generator to border are associated with deliveries under contracts with Pacific Southwest utilities. 5/ These are predomina tel y petrolenm-fueled plant s u tilizing high-cost fuels of questionable availability. ~

SUPPLUS ENERGY IN LXCESS GF FIRN LO AD C A6RVING C AP A91L IT Y

  • FOR 40 YEAES OF WATE4 EEC0E0 1979-P0 OPERATING YEAR ENLEGY IN AWERAGE FEGAWATTS JUL AUG AUG SfP CCT t.o v DiC JAN FEB MAR A Pid APD MAY JUN A MlU A L ad&TtR CONDITION 0-15 16 - 11 1-15 16-3) AVtRAGE 1928-29 3294 3196 3 0 0 0 0 3 C 0 0 ) 0 i 418 1929-3C 0 0 0 C 3 J J r 0 5 0 3 0 i c 1930-31 0 0 0 0 3 G 0 C 0 0 0 J 0 1 G 1938-32 0 0 0 0 G 3 0 0 5 3 2755 7244 9748 3330 1513 1932-33 0 0 483 s J 273 1489 8930 2468 2323 1221 367 6543 IIT67 3114 1933-34 3534 555E 3034 1728 1985 4803 8545 12442 8956 8 COL 9197 11114 8834 3 6121 1934-35 0 0 J 6 C u 0 7248 4547 496 0 204J 4468 1765 0514 1935-36 1674 3865 C C G 1 J 5081 335 0 0 9202 8787 C 1854 1936-37 0 0 0 J C 0 0 L 0 3 0 t C 495 41 1937-38 0 C G C 0 3 0 5714 12C 2 27C3 1231 9183 e86L 3424 2269 1938-39 0 0 0 C C 0 0 1107 0 0 223 5607 6294 ) e68 1939-4D 658 922 C G 3 0 0 1011 1374 4Cl2 2968 4058 2833 0 1680 1940-41 0 C 0 C 0 0 0 e 161 1224 21J 455 C J 144 1941-42 0 C 0 C C . 4232 7453 2JC2 0 0 198; 2617 1316 1533 1942-43 1129 2283 161 s 0 1 1427 9485 4867 2048 7648 19856 7208 6662 3699 1943-44 5648 4442 I ?4  ; 0 3 0 C 0 0 0 . C
  • 66e 1944-45 0 0 J 0 4 0 0 0 0 0 0 1 0 3636 29E 1945-46 0 0 0 '

O O 3 6168 1252 3298 3077 8245 11345 2634 2545 1946-47 0 455 28 65. $9 1898 5895 9667 6585 4308 3535 5798 IG634 817 3835 1947-48 0 0 0 3 5154 4174 3469 10 23C 5785 3095 1625 7224 124f3 12252 5675 19 8-49 0 0 2all IC75 52 772 1646 64e8 4856 2916 2657 8168 1218C 627 JaCe 1949-50 0 3 0 G G  : 0 8853 5761 6337 6753 6222 7043 1222S 3868 1950-51 5944 4882 2974 1414 1399 5036 6595 13870 1;280 6753 195 7 8622 11077 46te 6442 1951-52 914 4074 5 33 11tC 41C7 2421 2317 8835 5216 2591 5035 12C87 11226 3 4221 1952-53 0 1996 C C 3 J 0 9567 o341 925 0 1277 5486 8685 2tS9 1953-54 1999 2919 1428 316 239 1658 3297 9559 6667 4609 3169 3945 18198 9075 4528 1954-55 6345 7486 6532 418? 1152 3239 243, 8157 1959 0 359 i 3416 92 % 4094 1955-56 4912 4610 Jb3 164 2213 *348 6437 11222 5689 6163 8;95 1326* 12596 1866? 6557 1956-57 0 1549 1665 672 1361 1155 3520 8047 5195 4347 4230 3809 120 <6 4235 3825 1957-59 0 L C 0 C d 4 6184 6425 2302 2CO3 5875 18798 3:06 2752 N 3 00 1958-59 0 0 C a C 155 3871 10911 66e3 4665 554s 49t5 9286 9955 421e N 1959-6J 1856 3d 89 1177 S $ 38 6795 5714 467) 8765 5397 SC47 8794 46es 46 f 4 475% 512 e 196.-61 1833 2830 6 1J1 49 2154 1356 8998 1715 6521 4337 14'.5 IL2 L7 10397 4,76 1968-62 C 0 C C G  : u 75C 2 44C 4 2618 7te? C 1962-63 0 1342 747 ~ 1928 3fG9 7 4755 38st 2121 4892 9 Cit 77e5 2553 0 3125 3365 2933 -5% - l'A63-64 172 165C C 371 C 103 1248 898J 3736 1176 1787 17u 70,o 1175 3120 1964-65 2792 4215 1444 1172 1995 1952 6417 18e55 8922 593. 3957 16225 e918 666; 5592 1365-60 979 4646  ? 'd os 1158 766 le75 1625 965 e 311, 2483 5772 2C95 4223 681 2715 196o-67 318 2342 3 C 0 i 3379 9671 6577 3396 1453 .i 7e89 12397 3745 1967-68 8G2 2799 722 452 1286 2.27 2C 1J 3695 1942 5439 613 . 1757 5421 31 3/ AviFAGE 1087 1725 669 538 946 1899 20 32 6683 4:S4 2o76 2723 4534 c494 45.5 2903

SUFPLUS ENERGY IN LXCESS GF FIRN LO4D C AxRf!NG C APABILIT Y FOR 4C YEAFS OF MATER dEC040 1980-81 CPEkATING YEAR ENEGGY IN AVEEAGE MEGAWATTS JUL AUG AUG SEP OCT NOV OEC JAN Fra MAR APR APW MAY JUN ANNUAL MATER CONDITION 1-15 16-31 l-l5 66-34 AVERAGE 1928-29 3293 J536 73 0 G 0 J C 0 J 0 J 0 e 42e 1929-30 0 0 0 L C J 0 C 0 J J 0 0 2 0 1930-31 0 0 0 0 0 6 0 4 0 3 0 0 0 1 0 1931-32 0 .C C C 0 0 0 0 2R _ 0 2113 7333 9973 J 213 1541 1932-33 0 C 276 3 0 752 1529 3835 1242 8910 IC33 3914 6773 18682 3C 99 1933-34 3527 5410 3636 4789 Ji95 4895 8850 12382 8915 7388 8993 19253 8397 0 6135 1934-35 0 0 0 0 0 0 0 7607 +354 132 0 I??4 4F34 1595 1597 1935-36 4463 3407 C 0 0 0 0 525t 0 0 0 9249 8873 C 1844 1930-37 0 0 0 0 C L 0 0 0 0 0 1 0 388 31 1937-38 0 0 0 0 0 J J 6157 58T 2641 9283 999 9095 3334 2261 1938-39 0 0 a e 6 0 0 117e 3919 6999 0 G 9 J 856 1939-40 (!T 1246 0 0 0 0 0 1519 303 4557 2384 48C7 3299 ) 1940-41 Il9C 0 0 0 6 G C 0 0 794 0 164 6 0 3 74 1941-42 0 C 0 5 0 G 5413 7552 2219 C 0 2038 EJ to 9J2 863C 1942-43 1C04 257C 245 0 3 s 1136 9568 5065 2198 7421 12008 7415 6562 3640 1943-44 5638 4785 433 0 3 0 3 w 0 3 0 J e d 694 1944-45 0 C 0 3 C G 3 C 0 0 0 6 J489 1945-46 G 2al 0 0 0 C G G G 6298 854 3222 2783 8349 11591 2543 2525 1946-47 0 228 0 St1 2al 191d (136 9665 66JI 4170 3337 5924 109 (C 749 3862 1947-*8 0 0 0 0 5377 4192 J445 10281 5887 2632 1431 7337 12646 12142 5069 1948-49 0 3 2*SS 1077 439 918 T32 6635 3538 2888 2439 8281 12426 555 2994 1949-53 0 C 0 0 0 a 0 8956 6114 5747 6378 6297 7278 12838 3853 1950-51 5936 515C 2928 ilJ6 3110 5052 6674 10265 11226 6247 7607 8715 81322 4525 6 35 8951-52 888 4415 5 34 1143 4224 2429 3291 9G02 5394 1794 4796 12192 114 7C t 4285 1952-53 0 1213 0 G 0 s 0 9816 5655 e98 0 1538 5513 8707 264C N 1953-54 2003 3254 1446 381 251 1688 33:4 9545 6893 3976 2953 4302 18439 8976 4524 N 1954-55 6348 7799 6330 *2JS 1848 32n6 2441 8461 3900 C 0  ? 3552 9262 4l32 Co 1955-56 4977 4954 318 263 2328 4J14 6165 11131 5781 5508 Tali 13371 128*3 4856* 6506 g 1956-57 0 1789 1722 744 135C 1867. 3527 8121 5224 1775 4J i = 3490 12329 4059 3817 1957-58 0 0 0 C C  ; J 6654 5519 2325 1822 53el 12033 2923 2744 C 1958-59 0 0 0 L 0 897 38 1 10982 6746 ?8C9 SO E T 6960 94S0 9686 *253 A 1959-60 1098 3422 IITS 57t2 7309 5742 4615 st98 5610 4446 8626 4777 *STC 46s4 Site N 1960-61 Illi 3865 C 338 59 21*l 1358 8984 eS5J 5927 4115 463' 1;446 3.,30 2 4k64 1368-62 3 0 0 L s G 7 Tbt 1943 3 24i 3 Ttc3 4973 3426 2196 1962-63 C 1423 779 0 1250 3631 4S73 6346 7618 1858 J 3408 3219 2921 1363-64 122 1978 25 I ;u l J e4 2 1134 8366 -128 578 1422 4 73 1281 18624 3689 1964-65 2742 456C i1$3 2;73 199o 1974 ftS2 Il tJI 9014 5133 3699 IC396 919G 6593 5582 1965-66 949 4's97 2934 1167 835 169% 1632 8919 3014 1874 SE19 2232 4437 639 2771 1966-67 294 2678 J C G J 3*36 985E 6577 275d 1235 . 6229 12wJ- 3748 19o7-66 767 3138 762 */J 1279 22*- 2C83 9 2s 7913 470* 476 1966 5399 3825 AVEnAGE ICT2 leT6 671 553 958 1243 2*f6 6718 kJJ6 2328 2527 *5o4 0690 4-!3 2r92 .

SU4PLUS ENERGY IN 4 YCt SS OF FIRN LOA 0 CARRYING CAPA81LITY FOR 4G YEARS OF WATER RECoe0 1981-82 OPEE ATING YE AR ENL&GY IN AVLPAGE ME G AW A T TS JUL AUG AUG StP OCT NOV OEC JAN FEB MAR APR APR MAY JUN ANNUAL WATLR CONDITION l-15 16-31 1-15 16-30 AVtGAGE 1928-29 3000 3051 0 . C 3 0 . J 0 0 0 0 4 38C 1929-30 0 0 0 0 0 0 0 0 C 6 0 C 0 . 0 193C-31 0 0 0 0 0 0 0 C P O O 3 0 0 0 . 1938-32 0 G G L 0 J 0 C , 0 0 2719 7884 10389 3711 1623 1932-33 0 0 0 C 0 0 1454 9348 4334 1635 1894 411. 7873 12343 3227 1933-34 3269 4992 3468 1761 3333 5211 9129 12744 9443 7602 9318 18657 8800 3 6308 1934-35 0 0 0 0 0 3 0 oboe 497C 61 0 2283 4958 1885 1744 1935-36 1829 2975 0 0 0 J 3 5567 0 0 3 9765 9135  ? 1868 193b-37 0 0 0 4 0 3 3 0 0 0 0 i G 472 39 1937-38 0 0 0 . 0 0 0 6652 816 2915 1888 9813 9514 3866 2453 1938-39 0 C 0 C 0 J 0 592 0 C 0 3856 6787 42 823 1939-40 348 696 0 C 0 0 0 1747 122 4608 2750 5216 3396 c 1223 1940-48 0 C 0 . 0 0 0 . 0 1690 0 551 0 G 185 1941-42 0 0 0 C 3 S SG3F 8079 ?366  ; O 2423 2859 1305 IThe 1942-43 511 2GSJ J C 0 3 1067 9891 5657 2215 7821 12449 tot 4 7229 3778 1943-44 5389 4367 G 0 0 0 0 C 0 0 3 . 0 0 63F 1944-45 0 C 0 0 0 9 0 0 3 3 J . 0 4343 357 1945-46 0 0 0 C 0 0 0 7682 997 3495 3G 58 8889 12003 2999 2732 1446-47 0 0 0 0 0 1887 6375 10CSI TISS 4294 3533 6384 18307 1815 3863 19%?-48 0 0 G G 5027 4282 3576 10595 6461 2619 1567 7866 13047 12764 5245 1948-49 0 0 2141 974 377 508 757 6936 3957 Ja92 2677 8812 12834 967 3ill 1949-50 0 0 J C 0 0 0 9680 6284 5962 6672 6824 Tb90 12796 4C19 195c-51 5688 *132 3161 IJ43 32C2 5369 6865 18258 IJ809 650T 8827 9244 18733 5110 6659 1951-52 510 3998 470 1908 4393 2630 3457 9386 5834 1861 5195 12679 11874 0 4348 1952-53 0 685 J C 3 0 3 9731 6573 1079 0 1851 5938 94J4 28G4 1953-54 1600 2eJO 14:8 356 25G 1746 3432 9935 7454 4132 3161 4573 11854 967C 4684 1954-55 6096 7381 6433 4251 1879 33o9 253, 8851 4288 0 J 3 3790 9831 4261 1955-56 4721 4536 174 255 2154 4L75 6765 18561 6359 5816 8238 13e5s 13215 12?J3 6724 1956-57 0 591 1529 709 1383 1204 3669 8508 5702 3988 4359 1815 12717 wwT3 3979 N 1957-59 0 0 0 - 0 0 0 7042 6497 2?O6 1938 5865 12877 3238 2913 N CO 1953-59 0 0 0 t 0 337 4224 18356 7301 4619 5240 5261 9885 104T4 4370 N 1959-6c 802 2961 1127 5862 7230 6L87 4843 9175 6099 4589 8976 5236 5850 5?23 532e 196G-61 748 2676 G 352 22 2218 1411 9381 9355 5993 4484 2486 1(877 1698) *623 1961-62 0 0 0 . a 0 J 7;39 *599 100 2655 8259 5246 4354 2213 O 1902-63 ') 451 647 . 1213 3 T6 8 5C98 STl* Sil8 1923 3 3 6 4 C- 37.. 3. 2t A u 1963-64 0 95G 0 951 C E37 132% 9362 *6C3 355 1E99 83M T688 1229' 3i32 1964-65 2490 4128 141T 2J13 2382 2CJ9 6905 12899 1565 5399 398J 16811 9563 T272 5785 1965-66 620 A579 3006 1089 896 1564 Ila6 9277 3382 1953 5948 2 75 4642 691 2871 1966-67 ) 1960 0  ; 4 . 2526 IJ239 7854 2e55 135% . e632 12oT* 1871 1967-66 416 2649 666 *b2 121e 2117 2175 9%;6 9374 ho77 559 2080 5391 3229 AVfAAGE 933 1591 622 532 455 1220 2133 6980 6365 2435 274 8 4P94 o961 44*7 3C 0 (

SURPLUS EhtRGY IN E XCE SS OF FI;M LO A0 C AFRYING C AP ADILITY FOR 40 YEARS OF WATEE FEC040 1952-83 OPEGATING YE AR ENEEGY IN AVEEAGC MEGAWATTS JUL AUG AUG SEP OCT NOV CEC JAN FEB. _ MAR A t' R APG MAY JUN ANNUAL WATEE CON 0! TION 0-15 16-31 1-15 16-3J AVERAGE 1928-29 3714 3541 0 . 4 d 0 L G 0 0 . O J 468 1929-33 0 0 s . 0 0 3 C L 0 0 ) C 9 0 1 #3C-II O 8 0 C 0 0 0 G 0 0 0 J 0 0 0 1931-32 0 0 0 0 0 s Q U C 0 2319 7886 9985 302' 15tE 1932-33 0 C 564 C 0 447 _1990 9214 4352 1376 4221 4255 6702 11771 3225 1933-34 4012 5533 3096 1773 3322 506c 9326 12694 3483 7722 c4 8 3 19861 8413 0 6393 1934-35 0 0 0 C C C 0 7887 475J 43 0 2097 4545 1336 162J 1935-36 2b22 3562 0 6 0 0 0 5537 0 0 0 9905 9034 9 8963 1936-37 0 C J C 6 D 0 C 0 0 0 C 0 281 17 1937-38 0 0 0 0 0 0 0 6665 748 2727 1181 9919 9117 3217 2349 1938-39 0 0 0 0 0 0 J 1726 0 0 0 3345 F441 0 986 1939-40 650 1974 0 G u 0 0 1864 300 4352 1262 5268 3700 0 1237 19 0-41 0 0 0 J 0 C 0 C C IJ24 0 0 0 1 87 1941-42 0 G 0 0 0 0 5595 7897 2440 u 0 240T 2232 667 1674 1942-43 1272 2571 lia 3 0 C 1583 9859 5686 2292 7927 12649 7455 6563 3a40 1943-44 6237 4896 66 0 0 0 0 t G 0 u 0 0  ? 734 1944-45 0 0 3 0 C 0 0 C 0 0 0 0 0 3887 319 1945-46 0 0 0 0 0 J 3 690o 971 3322 3C 79 8952 18614 2347 2EIT 1946-47 0 677 0 SCB 54 1970 E395 9590 7238 4442 3624 L362 I;924 482 3938 1947-48 0 s C C 5719 4320 3562 1055C 6497 2896 1693 7892 12659 12183 5254 1948-49 9 223 2559 1812 459 729 IG92 6894 4232 2951 2655 8849 82447 12o 3122 1949-50 3 0 0 0 0 0 3 9258 6795 6118 6975 6876 7228 12214 4014 1950-51 6548 5263 3031 1344 3210 5223 E852 11238 IG923 6748 8302 9341 11343 4459 6695 1958-52 1216 4498 78 II*3 4371 2477 J399 9342 58e6 2C34 5235 12849 11487 C 4403 1952-53 0 1931 C  ; O G 0 8025C 6213 79G 0 1833 5462 8823 2724 N 1953-54 232T 3283 1421 356 259 1749 3432 9852 7525 4218 3236 4726 Il4E8 9485 47CC N 1954-55 6986 8Cl9 65ol =269 1192 3349 25 6 8777 43Ji 0 0 0 3385 9315 4271 g 1955-56 5543 506. 32J 183 2403 4144 6798 1853G 6332 5947 8382 1400 12835 11627 6765 1956-57 22 2255 1757 709 1391 1205 3669 S415 5752 4345 4349 3836 12336 *J21 3972 1957-58 0 L L 3 0 0 3 TC98 6391 2345 2040 5907 12055 2801 2o7C C) 1958-59 0 0 0 s s 30 3 4493 19314 7358 4051 5676 2523 9537 9994 *368 gN 1959-oC 1492 3445 1944 6342 7277 5930 4714 8379 6228 4703 9172 5228 4673 4586 5333 4s 1963-61 1455 3159 C 254 106 2234 levo 9277 9529 6274 4486 lete IC4T9 IL4JJ 4E41 1961-62 0 C 0 0 0 C 0 526; 6474 0 2660 626. *697 3686 4896 1962-63 0 1776 717 w 1358 3749 1038 3739 $2e4 1972 0 0 3 t ic 3C T8 3G 2 J 1963-64 429 1916 C 174 0 69T 132" 9258 4643 655 1595 565 7220 11729 3229 1964-65 3227 4609 1,33 2014 2099 2048 6998 12155 331r 5462 3957 18C36 9212 6679 5829 1965-o6 1334 SC68 3d43 1892 788 1965 17:5 9279 3588 19%C 59 2 2-t* 4162 257 2874 196t-b r 583 2659 C 6 3 0 3536 10lel 7165 2936 1397 8252 12J3* 3e77 1967-68 1825 3l37 679 486 13C0 2117 2173 336* 849C 4965 572 . 15 99 5356 3238 - AvikAGE 1253 1936 675 551 ed3 1243 2192 TCC6 441C 2458 27C 9 4899 6- ' 44.; 3C 07 .

SURPLUS ENERGY IN EXCESS OF FIPM LOAD CARRYING CAPABILITY FOR 40 YtARF OF WATEC EECORD 1983-84 OPERATING YEAR ENERGY IN AVERAGE MEGAWATTS JUL AUG AUG SEP OCT NOV DiC JAN FEB HAR APR APR HAY JUN ANNUAL WATEP CONDITION 1-15 86-31 1-15 16-33 AVERAGE 1928-29 3570 3138 221 0 0 . 0 0 3 C 0 1 0 0 442 1929-30 0 0 0 C 0 6 3 3 G 0 0 u 0 3 0 1930-31 0 0 0 C 0 3 0 0 0 3 0 0 0  ? C 1931-32 0 0 J 0 0 J G G _. 4 0 2554 693o I;542 4473 1653 1932-33 0 0 761 s 0 0 841 9687 4381 1934 986 316s 7342 1J245 3305 1933-34 3865 5157 3299 1803 2959 5060 8934 13203 9716 8Gl0 9323 10934 8961 7 640G 1934-35 0 0 0 C 0 0 0 7954 5432 393 0 1197 5028 2689 1826 1935-36 1708 3066 0 C 0 J 0 5458 578 0 0 8813 8900 299 1920 1936-37 0 0 0 C 0 0 0 0 0 0 0 J 0 1574 129 1937-38 0 0 0 C G 0 0 6436 ,IJ83 2456 1062 8986 9718 4634 248C 1938-39 0 0 0 0 0 0 0 1247 0 0 0 3067 6515 889 858 1939-4J 677 777 0 O J 0 920 1328 3792 2824 4453 3408 652 1221 1940-41 0 0 0 0 0 3 3 L 224 1954 0 3 0 3 815 1948-42 0 0 0 0 0 0 4372 8155 3489 0 0 1389 2990 2384 1984 1942-43 4145 2166 350 u o G 717 10170 5714 2173 7432 11650 0014 8013 3873 1943-44 60 74 4475 569 a 0 0 0 0 0 0 0 J 0 u 726 19*4-45 0 0 0 0 0 0 0 0 0 3 0 0 0 4275 351 1945-46 0 C 0 0 0 3 0 6715 1434 3031 ?944 8108 42271 3725 2736 1946-47 0 262 79 516 0 942 5795 1038C 7429 4569 3090 5259 18489 1875 3939 1947-48 d C 0 0 5150 4314 2992 19957 6685 2872 1281 6939 13420 IJ6J8 5329 1948-49 0 73 3857 1084 0 655 916 6014 5092 2819 2412 7984 13ldG 1730 3185 1949-50 0 0 2 C 0 J G 9398 6537 6134 E511 5819 7863 13734 4121 1951-51 6412 4871 J156 100o 2959 5196 6113 18729 til:3 6836 8C81 8411 12035 5847 6781 8951-52 1079 4092 684 967 1724 2434 2795 9522 5999 2593 5066 11857 12062 662 4386 1952-53 0 1791 5 . 0 0 0 939o 7425 675 0 684 6021 l u 2J 5 2877 1953-54 2215 2879 8596 381 260 1761 3064 10255 7697 4084 2599 3264 12305 10538 4793 N 1954-55 6776 7648 6713 4254 1248 3325 1983 8685 4278 J 105 1 3735 1C631 4343 g 1955-56 5332 *670 465 18C 2017 4427 (237 11994 6568 5773 7 9 a. 7 13857 13645 13022 6654 1956-57 0 1637 1891 758 1396 1217 3315 8091 5801 4337 42C7 2565 13014 54 3C 4C43 1957-58 0 0 0 C 0 0 0 6669 7136 1723 1774 4728 12565 4126 2934 N 3958-59 0 0 0 f 0 357 3697 11673 7583 461? 5071 4345 16054 18345 4480 Q 1959-60 1371 3C48 1322 5748 6686 6832 4314 9J0C 6598 4911 8838 42bl 5159 bb33 5399 4 1960-61 1313 2768 G 374 98 2229 Ilia 9697 3363 6306 1945 539 18838 11857 4732 1961-62 0 G 0 5 0 . J 696t 5306 J 2493 7234 5196 5189 226C 1962-63 0 1652 923 0 till 3 70s 8415 8428 8561 2228 3 . 39 C8 41*2 3117 4963-64 0 4362 128 349 0 698 965 9674 %362 566 1895 7843 13091 32 6t 1964-65 3052 422C !S45 197P 2185 2C33 6471 1253t IL327 5619 3471 9871 9675 8383 59sc 1965-66 1994 4672 3872 987 993 2.52 1317 $909 1943 2171 5815 14u5 4696 1684 2947 1966-67 442 2260 0 J 0 0 3269 IJS9e 729C 277J 751 1 e514 1365. 3978 1967-68 992 2718 9tJ 46; 1382 213; 1863 9CC1 $628 SJ52 261 1967 6564 3317 AVENAGE 1880 1735 174 530 1;I litt leS9 699, .o78 26 9e 2551 *167 7078 5*87 3071

SURPLUS ENLRGY IN iXCESS OF FIRN LO AD C ARRYING C APABIL ITY FOR 40 YLA6S OF WA3LR AEC0kD 1984-85 OPERATING YEAw ENEk6Y IN AVdEAGE McGAWATTS JUL AUG AUG GEP OCT NOV DEC JAh FEB MAR APR APd MAY JUtf AkhUAL MATER CONDITION 1-15 16- 31 1-15 16-30 AVERAGE 1928-29 3940 3633 J C 0 0 0 - 0 3 0 6 3 1 484 1929-3G 0 0 0 w C J J 1 0 0 0 J 0 1 0 1930-31 0 0 0 0 0 0 0 6 . 0 0 . 0 0 0 1931-32 0 0 0 ( 0 0 0 C 9 3 3817 7151 19381 5229 1818 1912-33 0 0 C u 0 26 1896 9834 3J84 585 1523 34e0 5264 14192 3299 1933-34 4176 5654 38 13 1791 3274 4991 9641 12833 8461 7269 95C4 11081 9451 730 6444 1934-35 0 C f C 0 u 705 7675 3645 148 0 2248 6103 3856 1932 1935-36 2236 3667 G C 0 0 0 4349 G e G 92LI 9958 1092 2:24 1936-37 0 0 0 0 J J J 0 0 0 0 1 0 1877 154 1937-38 0 0 6 . 0 J 0 4348 873 2683 8553 9299 ICT83 53*G 2465 1938-39 0 0 C b C 0 9 28 0 0 0 3263 7558 1441 89t 1939-40 1392 1259 0 0 J J J 1062 0 3e28 2738 4 23 3824 965 272 1940-48 0 0 0 0 0 0 0 L 0 402 O J G 0 34 1941-42 0 0 0 0 0 562 6722 767v 1343 0 265 1753 3415 2920 1989 1942-43 1452 2670 1 38 . 0 3 1295 974e 6362 2f41 8151 18713 8586 8798 3954 1943-44 6506 5104 153 C C 3 0 v e 3 0 . 0

  • 769 1944-45 0 0 0 0 0 1 0 0 0 s 0 3 0 5828 479 1945-k6 0 0 0 6 0 0 0 4778 1027 2784 3435 8213 12878 5128 2784 1946-47 62 8764 0 532 0 1497 6453 9855 53JJ 4045 3826 5533 42228 2708 4C 26 1947-48 0 562 0 219 5592 4332 3598 10792 4875 2346 1491 716* 13848 54%I9 5384 1948-49 0 617 3787 IIT9 293 965 IJ9* 6208 2665 3030 2827 1979 13735 2684 32 7t 1949-50 8 C J J 0 0 0 91*2 5617 5639 6863 6C69 e887 14489 4163 195J-51 6725 5J88 3G58 104t 1882 52J8 10 18 414 7C 9785 6301 8354 8231 12608 649* 6862 1951-52 1577 419G 489 1862 4041 2479 3432 9031 3816 1999 5632 1211b 12733 1343 4412 1952-53 23 2629 0 . 0 . O 8918 5540 1268 0 IL39 1826 10928 2946 1953-54 2595 J39G 1439 357 261 1751 3451 1J091 6377 3c08 3319 3837 12633 18274 4852 1954-55 7508 8209 6633 *292 1880 3360 2537 864C 2252 0 426 a 4460 11535 4449 Ps) 1955-56 5498 5232 330 156 2233 4188 6857 11792 4604 5734 1565 13363 1*097 13713 6e93 pgj 1956-57 585 235e 1777 fl6 1399 1222 3694 8025 3559 3783 4662 3C 95 135(8 614J 4673 gy) 1957-58 0 0 0 0 0 3 3 5873 5637 2564 2312 5827 13262 5937 3069 I\3 1958-59 557 0 G S L J 4418 18693 6t17 3706 5470 4tS3 IL734 52390 4503 1959-60 1676 3544 Il6C 5991 6920 5931 4867 8946 4243 %463 96*8 5841 5896 6 ell 5455 C:) 1960-61 1751 3257 6 265 98 22to 1414 9405 e52G 5681 4346 874 11569 12959 soll J:s 1961-62 0 t 0 J G w 0 6612 3325 23 27 C 4 77J5 6049 6855 2325
- 3    1962-b3          0  2045     146         C  1373      3737   SICI    e227    6759  1493     127      '

456v 547) 3861 1961-64 606 2004 0 195 C 723 1342 9141 2148 ?1 1855 L 8729 14134 3370 164-65 3355 4719 1 55 2J25 2CTI I?99 1027 12J79 12.6 4922 4396 13326 1C716 8768 5955 1965-66 153b 5175 3060 1883 772 1938 1728 8959 2029 1853 6217 4759 5889 2687 3(12 1966-67 130 2153 C L 0 3 3576 10365 5923 2628 IC21 . 9859 1

  • 31 2 ..it 1967-b8 1754 3266 6 90 457 1326 212$ 21s3 984* 6678 4707 Te7
  • 2324 Tell 3434 AVtRAGE 1392 2L76 6$5 5>9 ois 1246 2253 6651 3*32 2222 2893 4377 1692 6263 3129 ,.

SUwPLUS ENERGY IN E XCESS OF FIGN LCAO CAwRYIt G CAPABILITY FOR *C YEARS OF WATER RECORD 1985-86 O PER A T I NG YE AR ENEEGY Its AVE 6 AGE MtGAhATTS JUL AUG AUG StP OCT t.0 V OtC JAN FE0 MAR APR APd MAY JUN AlvNU AL HATER CONDITION 1-15 16- Il l-15 16-33 AVEPAGt 1928-29 4772 4439 652 0 0 3 0 C 0 0 0 3 C

  • 616 1929-30 0 G 0 u o d 0 . 0 9 G a 0 1 C 1930-31 0 0 0 0 0 J 0 C C 0 0  ; G 2 0 1931-32 0 u 0 6 0 J 0 C 3 C 2372 69%8 9967 49S8 1639 1932-33 0 1652 1752 J u 342 9565 3338 682 1321 C 1373 6841 14806 3227 1933-34 4994 6450 37 Il 1799 2993 4936 9219 13J33 9845 7177 9286 10005 8038 398 6,G4 1934-35 0 0 0 734 SC86 4647 135 19J7 C C 3 3 4938 3434 1896 1935-36 3039 4474 337 88 C u 0 5246 0 3 0 8883 8728 650 20 68 1936-37 0 C 0 0 0 0 0 0 0 3 0  ? G 2J32 165 1937-38 0 C 0 0 0 0 0 49i4 $42 2218 13 4 9185 9539 4999 2322 1938-39 472 136 0 L 0 4 3 1599 0 0 0 4C49 592C 130% 958 1939-4C 1869 2C64 0 0 0 J J B193 4C8 3392 2745 4240 2502 997 1940-%I 1247 O O c r  ? J Q w 434 899 Ji 3 C 3 all 1941 =2 0 G 0 G G 0 5753 7832 2S58 293 0 1938 2452 2631 te89 1942-*3 2125 3468 791 J 629 10u26 5268 4750 7823 18783 C G 7242 8328 3920 1943-44 7205 5752 953 G 0 0 0 u o C 2 J G  ? 890 1944-45 J G 0 C u e d 0 0 0 0 1945-46 J G 3828 315 0 0 0 u 0 3 0 5751 983 2364 J20 5 8206 18462 4957 2614 1946-47 928 2736 643 722 886 1932 5894 14815 6062 3983 5381 3476 Sc808 2435 4398 1947-48 371 1959 0 568 3326 42o3 JJ?S 18234 5530 2507 1267 6e27 12438 14053 5J57 1948-49 16 1984 4011 1467 469 985 65C 5145 4014 2957 2555 7953 12335 2J16 3280 1949-50 0 C 0 0 0 e 0 9586 6136 5676 6870 5913 7687 44235 4815 1950-51 7548 6170 3594 ilG3 3045 518= (633 18969 10113 6ill 7933 7883 18198 6832 6807 1951-52 2340 5316 1808 l149 3774 2397 2909 9316 4733 1901 %IS 18972 18323 959 4396 1952-53 e28 3456 J 3 C 0 0 9595 5378 603 0 1851 Solo 105e1 292J N 1953-54 3320 420C 2045 183 264 1782 3035 19539 6774 3*l0 2894 3451 18159 4106,3 482C N 1954-55 8396 9627 69c7 4329 1180 3274 2077 sert 3a27  ; 135 a 3G 87 Il0 3e 4437 1955-56 6286 5971 892 222 2205 4265 t438 12246 5419 5143 (164 13173 12717 43481 6o76 1956-57 1379 3871 2336 777 1433 1233 2226 7775 4621 3575 4395 2556 12230 6116 4C54 N 1957-58 0 0 J 2035 3 C 0 0 6915 645G 2:25 47e4 I I 9J 8 5883 3029 O 1958-59 0 0 0  ; G 967 4598 11<83 o755 JE61 520? 190: 9229 12899 4471 4 1959-60 2508 4333 1745 b ] I' 6653 6091 4654 9338 -968 4180 9267 4955 *4 10 6458 S444 1960-61 2538 4064 3 bl. 155 2257 363 985. 68 8 5284 3923 395 10176 12713 4757 1961-02 3 0 C L C 6 3 7748 4833 0 3448 15. 3 46?S 571: 2287 1962-63 80 4067 1457 C 1415 3675 4614 7977 1466 a f 90 141 '

318 J 5182 JI47 1963-64 1345 2824 616 1316 0 741 858 9581 1088 J I?38 7438 13E91 3345 1964-t5 4217 53v7 1999 2076 2368 2fl9 ESSI 125C2 4922 %ns 10053 46t 7 1525 8383 5935 1905-66 2335 5965 3598 1244 750 195J 1277 8839 2908 1164 (C 21 1548 449G 2397 3C01 136o-67 1534 3569 146 67 3 3 3248 1390' 5513 1729 654 - 1783 13970 3963 1967-68 2889 3773 1357 *78 1332 2123 1750 9211 7483 4615 4E2 ' 1489 7647 3%2e AVEWAGE 1832 2t59 1015 6:3 829 1252 1979 6577 1987 2796 27;6 4261 E566 5973 3106

SO4PLUS ENERGY IN tWCESS OF FIGM 60A0 CAdRYING CAPA316ITY FOR *; YEAGS OF WATth REC 000 1986-e7 OPERATING YE Ak ENt4GY IN AVENAGE HEGAwATTS JUL AUG AUG SEP OCT NOW OEC JAN FEB MAG APR AFC MAY JUN AhNUAL WATER CONDITION 3-15 16-31 1-15 16-33 AVEPAGE 1928-29 1951 3344 0 C G 3 0 0 6 C J 3 0 4 473 1929-3c 0 0 0 s J 3 0 t G C 0 J 0 i 3 193J-31 0 0 C 0 C 0 0 6 0 0 0 1 0 3 J 1931-32 0 2 G 0 L 4 9 . 0 0 5C 36 7599 10338 4418 1760 1932-33 0 0 194 C 0 3 3 9763 *109 1273 2345 3943 7052 13525 3229 1933-34 4171 5356 3140 1756 2992 5135 89o5 13498 9758 7723 10312 II4G9 8244 " 643E 1934-35 0 0 C C C 3 0 7435 5338 671 J 2295 5537 3G31 1982 1935-36 2184 3380 0 C 3 J 0 5349 0 0 0 9674 9238 239 1988 1936-37 0 C 1 ( 0 c 0 6 0 w 0 . 0 1239 102 1937-33 0 C 0 0 0 . 0 437t 1973 3C57 2347 9789 9746 4412 2473 1938-39 0 0 0 w 0 a C 1219 0 0 175 5549 6826 749 921 1939-4G 668 987 G s O C C 1622 1157 3853 3790 4843 2003 134 1995 1941-44 0 6 0 . O Q J J Tl3 950 1028 57 0 0 183 194l-42 0 0 G C C 0 3453 8217 3739 0 874 2335 2309 2J46 1774 1942-43 1356 2373 127 C 0 C 0 1033C 6JE6 2565 8835 123al 7457 7738 392n 1943-44 o382 4650 0 0 0 3 J J G 3 0 3 0  ; 733 1944-45 0 0 C J G C J h 0 0 0 1 0 4le9 33e 1945-46 0 L L 0 J J 5360 2120 3897 425C Sel5 18680 4377 2752 1946-47 IS f*88 0 172 4845 5236 80414 7315 4507 4447 41064 C 598' 1869 4017 1947-48 3 72 0 15C 5312 4386 2364 11509 6477 2983 2159 7507 82657 IJ483 5336 1948-49 J 215 2393 139t 4bo 990 3 625? 6627 3682 3589 8559 12554 1735 3258 1949-50 0 0 0 t u J J 9369 5791 6354 77 ?3 6432 7893 13662 4857 1950-51 6731 5; 70 33 39 IG31 33*1 53C9 5959 I218C 4113b 6753 8978 e*77 184 17 5553 6eC8 1951-52 1521 4280 472 10CC 3762 2512 2l99 9632 553J 2668 f432 12573 18541 381 4379 1952-53 0 2355 C C C 5 J 8996 6271 1713 0 125E 6030 10532 2917 1953-54 2549 3805 1435 Jos 263 1793 2226 10 t 16 74C 3 4806 396 6 4Gli 18377 18*2J 4eC9 1954-55 7579 7933 6276 *191 1897 3?96 1378 90$u 389J

  • l*96 , 3637 IG864 *395 DQ 1955-56 5641 *876  !!" 38 1896 *59; 5785 82585 6227 6021 9203 13774 12937 12828 6875 N 1956-57 558 2G75 1778 724 1396 IM 2464 8144 5449 4258 5433 3149 12451 5587 4034 g 1957-58 J C 0 '
; J 6634 56C5 2e02 3039 535o 12129 5331 3042 1958-59 0 J 3 L 3 J 3553 12203 7772 395J (123 4526 9455 1862S 446t 1959-60 1691 3235 1834 5675 6946 6812 3882 9654 5998 4892 10313 556' 4605 Se91 542J Q 1963-61 1784 2968 0 26 IJS 2268 149 1312t 39:6 5886 49*5 9c2 10393 12132 474t A 1961-62 0 L C s C . J 697C 3787 4 37 447S 8501 SatC 5827 23G4 g 1962-63 0 1738 738 a 1333 3794 3960 8286 35 5 2L97 1850 . 36 8 t> 46*b 31Ji 1963-64 518 1728 C 975 0 751 72 "258 *J91 *16 2*43 i 7653 1334? 329e 1964-05 3495 *2G9 145* I A39 2114 2652 5872 12ewt 1750 5387 499o 19608 9539 78J. 5926 1965-66 151* *e71 JJ*4 let 931 1970 46J 9231 .JIT It49 7C e 3 2139 *687 lait a981 1966-67 678 2672 J t 0 1 2361 11:55 7665 2343 1085 '

stI3 13%6o 3946 1967-68 2064 2o59 696 464 1527 215J 934 9677 e252 5255 thek . 1090 t3s3 3*C2 AVEGAGE 1375 Inew 670 526 $24 1257 1525 7.5t .584 2537 3491 47.5 t758 5525 3s 9t ..

                                                                                                                                            ' ~

3URPLU5 ENtRGY IN EECEd5 OF F IG N LOAO CAkRYING CAPA81LITY FOR 4G Y[ARS OF WAftR NECOWO 1987-68 OPERATING YEAD ENtGGY IN AVE 9 AGE MEGAWATTS JUL AUL AUG SEP OCT NOV GEC JAN FEB MAW APR APE MAY JUN ANNUAL WAf t R CON 0! TION 1-15 16-31 l-15 16-33 AVcEAGE 1926-29 52J5 4348 561 6 C 0 0 8 O C 0 0 0 1 645 1929-3C 0 0 0 . 0 = 0 0 C J 0 3 4 3 C 1930-38 0 0 0 C C 0 3 C C 0 3 0 0 J G 1934-32 0 0 G A L J J G_ 0 2 2174 6822 10279 4295 159t 1932-33 149 2677 4662 6 G C 716 9027 4394 69 l165 3882 7154 IJs03 32CE 1933-34 5425 636L 3638 179% 3228 SL36 $0 S4 12766 9562 6722 9174 10702 8352 C 640J 1934-35 0 0 0 0 0 J 954 TS24 5192 G 3 1799 5075 2554 4859 1935-36 3467 *382 285 59 0 u 3 4789 0 0 3 8773 5060 0 2C 25 1936-37 0 0 0 6 L U 0 C C 0 0 J 0 1971 162 1917-38 0 C 0 0 0 0 0 5598 1056 1527 1891 9L76 9846 4334 2308 1938-39 9tb St C v 0 0 3 1833 259 0 0 3709 6196 655 985 1939-40 2277 1968 0 0 0 J C 1294 56 3517 2636 4825 2 8 iC 31* 1236 1940-41 0 L 0 0 0 0 262 . 193 1062 C 0 C C 127 1941-42 0 0 0 C 57 873 5515 7301 3287 0 203 1853 2613 1911 1881 1942-43 2475 3375 687 4 3 J 452 9498 5930 1575 7743 11215 7542 7636 3873 1943-44 7632 5657 849 C 0 s 1 0 0 0 0 1 0

  • 912 1944-45 0 0 J c 0 h 3 0 J 0 = 0 3393 279 49,5-46 J 0 0 C 0 0 0 5795 1315 1689 3:22 883C 18897 4346 25t7 1946-*7 1431 2642 549 728 18T 1983 (142 957. 6714 3462 3378 53C. 18177 1744 4C85 1947-48 794 1863 C 519 5559 4372 3275 10694 6246 1773 1002 6787 12769 13365 53JT 1948-49 443 1883 3916 1461 471 995 758 5528 4590 2548 2441 7868 12404 1608 J2t2 19*9-50 0 0 0 6 0 0 0 9055 6977 5429 6850 5911 8006 13545 4083 1950-51 7981 6CT8 3438 1399 8182 5295 6577 18481 10810 5632 7800 7747 18528 5429 6774 1958-52 2773 5205 1C16 1044 4JJ2 2499 3110 8852 5464 4295 5272 18e65 l1650 247 43uk 1952-53 1254 3358 J C 0 C 0 9352 6172 72 0 985 L127 9974 2e91 1953-54 3729 4168 l ') SS 382 267 1797 3152 9995 7418 3218 2839 3195 18483 1029" 480u 1954-55 8832 5939 6839 w385 1889 3381 2247 8299 3515 0 0 1 3591 1 h 313 4468 CO 1955-56 6683 5879 sol 198 2259 4ti4 6399 11666 6133 .732 7993 13049 13044 12696 6e1J N 1956-57 1808 3078 2245 779 14J3 1241 3382 7417 5849 3210 4284 2537 12568 5369 4(37 I)57-58 0 C C J C 0 0 6772 7424 1393 1938 4751 12238 5185 34G4 1958-59 0 0 0 . u 1795 4353 1838* '352 2988 5239 Je*, 9tJ 1 18551 4 4a 1959-60 2935 4236 1648 5772 6894 6C2s *T61 5579 56e9 392? 9224 4833 4691 5767 5421 4 196J-61 2966 3970 0 564 le9 2272 1073 9314 14 e 2 keC6 1884 427 l'.4 95 12JJs 4734 1161-62 3 C J G 0 J 7453 519?  ? 1297 7268 6708 4832 22t2 1962-63 492 3974 1367 . 1427 3784 4819 7597 $318 1862 3 . 3421 446o 3123 1963-64 1771 2738 523 1.C3 G 755 995 9.37 3304 0 1255 1729 12854 3346 1964-65 4594 5268 1899 2344 2108 2031 ball 18980 3289 4422 3911 99e9 9659 7685 59CS 1905-66 2767 5874 3506 i s 7C 12C 4965 1394 8559 3447 766 5922 1458 4781 1689 29ec 1966-67 1930 3%74 53 34 0  ; 3 64 1927? 7144 1415 546 , oer y 13239 3947 1367-6c 1386 lb4e I?62 46f 1334 2158 1853 8944 1945 4.83 392 , 1688 66 d5 3399 ave P A Gt 2851 2t ic 966 583 965 1369 2039 6693 4376 lell 2522 419J 6813 Sist 3c 85

SURPLUS ENf4GY IN E XCESS OF FIRN LOAD C ARE VING C AP ABIL IT Y FOR 43 YEARS OF WATER DECORD 1988-89 OPdkATING YE AR E NEE GY IN AVERAGE MtGAWATTS JUL AUG AUG SEP OCT NOV OEC JAN FEB MAR APR APG MAY JUN ANNUAL WATER CONDITION 1-45 1 6- 11 1-15 16-31 AVERAGE 1928-29 4581 3851 80 0 0 C 0 o 0 0 0 0 0 i 551 1929-33 0 0 0 0 0 0 0 0 0 0 3 0 0 J 3 1930-38 0 0 0 0 d 1 0 G 0 0 0 J 0 3 C 1938-32 0 C C 0 0 3 0 0 0 4 1889 6555 1 3G5 3805 1535 1932-33 0 TG5 8192 0 3 . 32 9853 4902 701 all 266: Tl91 12911 3163 1933-34 4818 5863 3156 1787 2986 5089 8997 13595 13228 T236 8784 10346 8373 1 6422 1954-35 0 0 0 C C y J 7953 5895 97 0 1488 5098 2159 18C7 1935-36 2844 3886 0 C 0 J J 5718 0 G 3 8269 9196 4 20Go 1936-37 0 0 0 C C J 0  ; O G 0 0 0 IIST 98 1937-38 0 0 0 2 0 0 3 5832 2157 1815 843 8732 96(7 3815 2304 1938-39 284 0 0 0 0 0 0 2653 963 0 0 294J 6129 79 920 1939-4C 1656 4493 0 0 0 C 0 168t 1144 3803 2288 3782 2630 3 1228 1940-48 0 0 0 0 0 0 0 0 942 1343 0 6 6 0 179 1941-42 0 0 6 u 0 0 3827 8324 4840 G 0 1187 2649 1378 1736 1942-43 1739 2877 205 . O J 0 10297 6462 188C 7287 11315 1587 FC83 Jell 1943-44 7005 5154 303 C 0 0 0 0 C C 0 C 4 0 820 194*-45 0 6 0 0 0 L 3 L L 0 d 1 0 46C5 378 1945-46 0 0 0 0 0 0 0 5178 2163 1899 2754 7762 Il8P2 3722 2509 1946-47 645 1995 3 *09 0 1726 5848 IJ386 7414 3804 2927 Sst. 18196 1249 3963 1947-48 169 1368 0 259 5312 4379 2969 18517 6912 2395 636 b419 12802 1286C 5308 1948-49 0 1822 3359 1405 472 997 426 6154 5375 30J5 2069 15GT 12694 1803 3222 1949-50 0 w 0 0 0 L 0 9758 7220 5428 E3:4 5251 8080 13044 4075 195;-51 7352 SSSI 3J16 IJ95 3016 5304 6378 1228E 18425 6218 7402 7392 11561 4918 6742 1951-52 2150 4733 5 34 979 3755 2499 2806 9574 6194 196C 4927 11533 11682 0 4366 1952-53 371 2e62 0 2 0 3 0 9886 6624 477 0 662 6087 9264 2e43 1953-54 3079 3612 1474 35; 269 leu? 2816 10819 $161 3553 2348 263J 18534 98dJ 4753 1954-55 8208 8444 6326 4243 124G 3388 1911 8943 *35 2 C 0  ? 3561 9997 44JC N 1955-56 6146 5383 319 12 2334 4L41 6284 1252C 6818 5279 1537 12672 15J69 12174 6778 N 195b-57 1983 2584 1764 777 140C 1240 3053 8052 5965 3664 3914 182$ 12bC5 4939 3993 OO 1957-Se 3 c 0 0 3 0 3 7222 1398 it2J 1549 4083 12284 4T35 2979 1958-59 0 L C C S 883 3915 12199 d826 3589 4712 J437 95T9 l u 966 4%I9 1359-60 2309 3736 1962 5695 68JI 6tJ9 4540 9584 6380 4327 asil 4495 4738 5271 5385 O 1960-61 2342 3473 0 305 110 2272 741 IJI39 1.161 5335 3411 ' 16472 18493 6654 (J) 1968-62 0 C . ( s  ! U 7775 5362 3 2893 bel 5 %795 4673 2246 O 1962-63 0 3234 886 C 1487 3 8L 8 4535 827L 8664 1729 0 s 338J J667 3093 1963-64 1820 2236 2 19e . 156 662 9859 4499 . 963 1 7755 12396 5292 1964-65 4000 47C 7 1417 1 370 2158 iC64 f=83 12786 10054 49C7 3432 9592 96 tc TITJ Seal 1965-66 2145 5379 3325 I J0 5 9G6 2040 1055 9268 4872 1258 5563 9C' 4856 1884 2141 1966-67 1300 2976 f C . 0 2992 lits ~ 7878 1851 63 7916 12695 3915 I:67-6N 2678 3134 774 453 1332 2157 1522 6 78 A719 4652 0 - 1629 6357 3363 - AViWAGE 1703 2259 726 546 33G lio4 179, 7184 4318 2t96 2354 32el t821 5t J5 3.53

                                                                                                                                                        ~

SURPLOS t[N E R G Y IN EXCESS OF FIRN 1.0A0 C ARRVI AG CAPABILITY F OR 40 YEARS OF WATtR RECORD 1989-90 OPERATING YE AF ENERGY IN AVEDAGE MEGAWATTS JUL AUG AUG SEP OCT ho v OEC JAN FEB HAN APR APR MAY JUN ANNUAL WATER CON 31710N 1-45 16 - 38 l-15 16-31 AVERAGE 1928-29 4715 *3o0 $76 L C 0 1 2 3 0 0 3 0 J 688 1929-3C 0 0 0 J s O C C 0 0 0 1 L J 1 1930-31 0 C 3 0 0 G 0 J 0 0 0 G 0 3 0 1938-32 0 0 0 0 0 J D L 0 0 0 3335 10047 3391 126S 1932-33 0 f(25 1978  : 0 0 SCI 10s23 5262 1488 0 201 6915 12064 3158 1933-34 4712 6346 3 95J 1862 3351 5269 9070 13747 12759 7538 6302 7774 8163 s 637t 1934-35 0 0 0 f 0 J 8757 6633 630 4171 1065 G 0 J 1752 1935-36 2602 4244 433 0 0 0 3 5785 40C0 0 0 505" 8774 G 8935 193o-37 0 2 0  ; O O O J G 0 0 J 0 69 6 1937-3e O C 0 0 0 7057 2676 1961 5632 9696 C 0 0 J421 2307 1938-39 415 63 0 d D 0 3 3207 1522 0 0 J 5307 0 878 1939-4C ITG0 1999 3 0 0 0 C 2591 20C5 3747 0 871 2559 J 12C( l940-44 0 0 0 0 0 G 0 1681 1690 925 0 1 C C 345 1941-42 0 0 0 C 0 0 2727 8536 4636 0 0 3 1227 783 1481 1942-43 1730 3227 917 3 0 0 3 10473 7133 289J 5069 8677 1356 6679 374C 19*3-44 TI JT 5664 l153 C C 0 0 C 0 0 0 J 0 J 88e 1344-45 0 0 0 0 0 0 0 0 1945-46 0 0 0 3 0 1953 161 4 C 0 0 0 u J 692C 2453 2143 192 5395 18733 3456 2468 1946-47 955 2652 859 722 193 1984 5826 19585 7915 4788 740 832 234) IG958 4603 1947-48 302 1873 212 566 5882 4360 2989 18681 7561 313G J 3527 12087 12393 5292 1948-49 0 1650 4289 1 32% 479 998 548 6991 6012 3459 *634 42447 695 0 3481 1949-50 0 0 0 J 0 J 0 9973 7996 6581 4131 2o35 7835 12649 4C05 1950-58 7489 6C88 3811 1101 1208 5281 6389 12526 12iwI 6624 4852 4772 18342 4523 6678 195'-52 2286 5198 1327 1858 4361 2475 2e31 9503 6585 2410 2404 89e5 11465 3 4367 1952-53 334 3365 C . 0 9 0 10392 9313 50J 4990 839J 0 1 2820 1953-54 3002 3938 2174 18; 268 1443 2899 10979 8675 4496 212 7 18298 9396 4635 1954-55 8346 8952 Tito 4 33J 1203 3366 8986 9258 3500 G 0 J 23 % 9446 4322 N 1955-56 637' 5847 1075 182 2427 4526 6392 12667 7428 6175 5374 IJ068 12850 18773 6822 g 1956-57 1316 3091 2558 778 1402 1245 3836 8629 6667 4251 1324 J 12187 4439 3964 1957-58 0 0 0 0 d C 0 2046 556? 2218 3 1931 18791 4152 2958 N 1958-59 0 0 0 c 0 1387 4191 12333 87C2 4189 2SE4 897 94 28 I C 651 4359 1959-60 2436 4240 1353 611s 1283 61J6 4434 9800 7J23 4T24 6311 1876 4462 4364 5357 O 1960-61 2474 3978 1 30 656 Ill 22dl 823 1030t I??25 6106 1232 5 9476 109 1 4672 g 1961-62 C t 1 J 0 , 0 8297 6345 225 442 4e79 4990 4 8 3t 2192 19b2-63 10 3984 1663 . 1432 3785 4521 9867 38f 9 2a Il O , l*64 4935 3C82 1963-64 940 2635 826 13 ". J 457 743 10J18 5861 573 3 , 7048 II171 3262 1964-65 4009 4996 2G67 1727 1970 2t 74 6476 42916 1a604 5741 1255 724J 9457 6716 1965-66 5765 2279 5665 3820 12*A 766 1984 1839 9 e5 8 4877 1763 2967 s 392J 649 29C0 1966-67 142k 3bou 3o3 3' $ 0 3499 18263 5445 2203 e a 7576 11823 3961 1967-68 2544 3456 l*51 1*e 1871 2Csd 1674 9975 9253 5304 J B266 Slor 337e AVf v AGE 1738 2574 1824 575 186 4276 181C 7639 5429 247S 1834 2261 6* l 6 4532 3.14

SECTION IV Ratine Information for Generatine Facilities Fuel Plants - Nameplate Ratings and Capabilities Hydro Plants - Nameplate Ratings as of December 31, 1978 Hydro Plants - Chronological Projection of Nameplate Additions 2282 052 e i-m 3 2-

                                                                      =

NAMEPLATE 1(ATINGS AND CAPAlllLITIES OF FUEL. Pl. ANTS AS OF DECl}tBER 31, 1978 Nameplate Peak Energy Rating Capability Cap.bi1ity P1 ant Typ.e_ _ FN FM _ Ayr,._jk _ _ _ _ _ ____ _ _ t i t i 1 i t1_ __ __ __ ___ _ Eugene Water & Elect ric lioard -- Steam 25.0 25.0 3.7 Weyco Steam 51.2 33.5 27.4 Portland General Electric Company S unsui t #1 Diesel 2.75 3.0 0.5 S unun f t #2 Diesel 2.75 3.0 0.5 tie t he l Conb. Turbine 113.4 125.0 3.9 1/ ILarburton Conb. Turbine 226.8 249.0 7.8 Beaver Comb ined-Cyc l e 585.3 599.0 60.8 Pacific Power & Light Company 2/ Lincoln Steam 35.5 15.0 0.0 Libby Turbine Comb. Turbine 23.8 28.9 0.0 Seattle City Light Lake Union Steam 30.0 30.0 2.0 llouidary Conb. Turbine 0.75 0.75 0.64 Steam 90.0 86.0 8.6 Puget Sound Power & Light Company Shuffleton Crystal Mountain Diesel 2.8 2.8 0.3 Whidbey Island Comb. Turbine 26.5 28.5 2.8 Whitehorn Comb. Turbine 67.5 67.5 6.7 City of lionners Ferry -- Diesel 0.2 0.2 0.0

                                                        #1                                      Diesel                     1.1        1.1         1.0
                                                        #2                                      Diesel                     1.1        1.1         1.0 N                                                   Comb. Turbine             28.2       32.8         1.0

'the Washington Water Power Company g othello Northeast Comb. Turbine 61.2 68.0 Total Snull Fossil-Fuel Plants N 1375.8 1399.2 128.6 CD Washington Public Powe r Supply System W llan f ord Nuclear-Steam 800.0 U Pacific Power & i.ight company Lentralia #1 & #2 Steam 1 329.8 1313.0 919.1 3/ J i m tir i dge r # 1, # 2, # 3 Steam 1525.8 1500.0 1125.0 The Montana Power Company 4/ Colstrip #1 Steam 358.0 330.0 280.5 Colstrip #2 Steam 358.0 130.0 280.5 Poitland General Electric Company Trojan Nuclear-Steam 1216.0 1130.0 800.0 1/ Cuit.ntly, no pe r u. i t is issued for operation of this plant. 2/ Stand-by status only. 1/ Itat. has 66-2/3% of all units. Generation from Jim Bridger is included in imports from East. 4_ / t'uget Sound Power & t.ight has 50% o f 1,o th un i t s .

SMALL FUEL P] ANTS Peak and Energy Capabilities Used as Firm Resources and Additional Thermal Capability Available for Energy Reserve Additional 1hermal Capability January Peak Annual Energy Available for Energy Capability - Mw Capabilfty - Avy. Hw Reserve - Avr. Hw 1980-81 1985-86 1980-81 1985-86 1980-81 1985-86 Thru Thru 1hru Thru Thru Thru utility Plant Type 1979-80 1984-85 1989-90 1979-80 19Fi-85 1989-90 1979-80 1984-85 1989-90 Eugene Water 6 Electric Board -- Steam 25.0 19.0 11.5 3.7 2.8 1.7 18.8 14.3 8.6 Weyco Steam 33.5 33.5 33.5 27.4 27.4 27.4 - - - Portlaad General Electric Company Sunani t il Diesel 3.0 3.0 3.0 0.5 0.5 0.5 - - - Surmit #2 Diesel 3.0 3.0 3.0 0.5 0.5 0.5 - - - Bethel comb. Turbine 125.0 125.0 125.0 3.9 3.9 3.9 78.3 78.3 78.3

  • ttamborton Comb. Turbine 249.0 249.0 249.0 7.8 7.8 7.8 157.1 157.1 1 57.1 Beaver Combined-Cycle 599.0 599.0 599.0 60.8 60.8 60.8 324.2 324.2 324.2 Pacific Power & Light Company ** Lincoln Steam 15.0 15.0 15.0 - - - - - -

Libby Turbine Comb. Turbine 28.0 28.0 28.0 - - - - - - Seattle City Light I.ake Union Steam 30.0 30.0 30.0 2.0 2.0 2.0 - - - Boundary Comb. Turbine 0.75 0.75 0.75 0.64 0.64 0.64 - - - Puget Sound Power 6 I.ight Company Shu f fl e ton Steam 86.0 86.0 86.0 8.6 8.6 8.6 53.9 53.9 53.9 Crystal Mountain Diesel 2.8  ?.8 2.8 0.3 0.3 0.3 1.4 1.4 1.4 Whidbey Island Comb. Turbine 28.5 28.5 28.5 2.8 2.8 2.8 14.7 14.7 14.7 Whitehorn comb. Turbine 67.5 67.5 67.5 6.7 6.7 6.7 39.1 '9.1 39.1 City of Bonners Ferry - Diesel 0.2 0.2 0.2 - - - - - -

                                     #1             N      Diesel                1.1       1.1       1.1       1.0      1.0       1.0      -          -        -
                                     #2             C      Diesel                1.1       1.1       1.1      1.0       1.0       1.0      -          -        -

N The Washington Water Power Company othello Comb. Turbine 32.8 32.8 32.8 1.0 1.0 3.0 - - - Northeast O Comb. Turbine 68.0 68.0 68.0 25.0 26.0 26.0 - - - ( T1 1399.2 1393.2 1385.8 154.6 153.7 152.6 687.5 68 3.0 677.3 Total capability A

  • Currently, no permit is issued for operation of this plant.
    • Stand-by status only.

NAMI Pl ATE f(ATINGS Ol' PRESENT IfYDRO I NSTAl l ATioNS Sheet I of 2 Nameplate Nameplate Plant Megawatts Plant Mecawatts City of honners Ferry Cowliti County PUD Moyie Springs 2.4 * (See Switt No. 2 - Pacific Power 6 Light Canpany) Honneville Power Administration Douglas County PUD itungry llorse (USBR) 285.0 Wells 774.3 Albent Falls (USCE) 42.6 Libby (USCE) 420.0 Eurene Water & Electric Board Grand Coulee (USBR) 4.763.0 ** Walterville (McKenzie River) 8.0 Chiet Joseph (USCE) 1,689.0 1.eaburg (McKenzie River) 13.5 MsNary (USCE) 980.0 Carmen (McKenzie River) 80.0 The Dalles (USCE) 1,807.0 Trail Bridge (McKenzie River) 10.0 Bonneville (USCE) 'e l 8 . 4 Detroit (USCE) 100.0 Grant County PUD Hig Cliff (USCE) 18.0 Priest Rapids (10 Units) 788.5 llills Creek (USCE) 30.0 Wanapum (10 Units) 831.3 lookout Point (USCE) 120.0 Dexter (USCE) 15.0 Pacific Power A 11pht Company Chandler (USBR) 12.0 Swift No. 1 (i.ewis River) 204.0 Roza (USBR) 11.2 Swift No. 2- (Cowlitz PUD) (lewis River) 70.0 Dworshak (USCE) 400.0 Merwin (Lewis kiver) 136.0 Lower Granite (USCE) 810.0 Yale (Lewis River) 108.0 Little Goose (USCE) 810.0 John C. Boyle (Klamath River) 80.0 Ice liarbor (USCE) 602.9 Iron Gate (Klamath River) 16.0 Cougar (USCE) 25.0 Copco No. 1 (Klaw.ath River) 20.0 Green Peter (USCE) 80.0 Copco No. 2 (Kl.imath River) 27.0 Foster (USCE) 20.0 East Side (Klamath River) 3.2 John Day (USCE) 2,160.0 West Side (Klamath River) 0.6 1.ower Monumental (USCE) 405.0 Toketee 42.5 Palisades (So, Idaho) (USBR) 118.8 lemolo No. 2 33.0 Black Canyon (So, Idaho) (USBR) 8.0 Prospect No. 2 32.0 Hoise Diversion (So, Idaho) (USBR) 1.5 1.emolo No. 1 29.0 Anderson Ranch (So. Idaho) (USBR) 27.0 Clearwater No. 2 26.0 Minidoka (So, Idaho) (UShK) 13.4 Slide Creek 18.0 1.ost Creek (USCE) 49.0 Clearwater No. I 15.0 Soda Springs 11.0 City of Centralia Fish Creek 11.0 Yelm (Nisqually River) 10.0 Condit 9.6 IN) Prospect No. 3 7.2 Chelan County PUD N Naches 6.4 Chelan CX3 48.0 Powerdale b.0 Rock Island psj 416.1 Big Fork 4.2 kocky Reach 1,211.6 CD LJ1 LA

  • Included in " Minor ifydro-others" in resource tabulations.
                                  **   Includes service units, 2 pump-generator units, rewind of 17 main units.

NAFEP! ATE FATINGS OF PPESLNT HYDRO INST A! ! ATIONS Sheet 2 of 2 Nameplate N an,ep l a t e Plant Meeawatts Plant Megawatts Paci fic Power 6 licht Company - contd. Tjcema City 1.icht Prospect No. 1 3.8 Cushman (Skokomish River) 124.2 Eagle Point 2.6 Alder (Nisqually kiver) 50.0 Fall Creek 2.2 LaGrande (Nisqually River) 54 .0 Drop 1.? Mayfield (Cawlitz River) 1 21.5 Bend 1.1 Mossyrock (Cowlitz River) 300.0 Wallowa Fclls 1.1 Cline Falls 1.0 The Wishington Water Power Company Prospect No. 4 1.0 Post Falls 11.2 Albany 0.8 Upper Falls 10.0 Stayton O.6 Monroe Street 7.2 Nine Mile 12.0 Pend Oreille County PUD Long Lake 70.0 Callspel Creek O.6

  • Little Falls 32.0 box Canyon 60.0 Meyers Falls 1.2 Sullivan I.ake (Storage Only) - Cabinet Gorge 200.0 Noxon Rapid s 396.9 Portland General Electric Company T . W. Sullivan 15.4 Washinp_ ton Public Power Supply System Bull Run 21.0 Packwood 26.0 Oak Grove (Clackamas River) 51.0 North Fork (Clackamas River) 38.4 City of Idaho Falls (So, Idaho; Faraday (Clackamas River) 34.5 Lower 3.0 River hill (Clackamas River) 19.0 Pelton (Deschutes River) 108.0 Lower Valley Power 6 Licht Inc. (So, Idaho)

Roun] Butte (Deschutes River) 247.1 Strawberry Creek 1.5 Puvet Sound Power & I.i eh t Company Flathead Irrivation Project (FIP) Nooksack (Nooksack River) 1.5 Big Creek O.4

  • Electron (Puyallup River) 25.5 Snoqualmie Falla (Snoqualmie River) 41.7 White (White River) 70.0 1.ower Baker (Baker River) 64 .0 Upper Baker (Baker River) 94.4 Seattle City l ieh t N

g Cedar Falls y) (Cedar River) 22.9 Newhalem (Newhalem River) 2.0 I\ (Skagit River) 360.0 Ross Diablo (Skagit River) 120.0 Gorge C2) (Skagit River) 134.4 Boundary lll 551.0 Total Installed as o f Dec ember 31, 197e 2A,312.5 C7%

  • Included in " Minor Itydro-Others" in resource tabulations. -

HYDRO PLANTS CHRONOLOGICAL PROJECTION OF NAMEPLATE ADDITIONS PIANT TOTAL UNIT ADDITION AREA DATE PIANT NO. NA>EPIATE-FM NAMEPIATE-FN Dec/78 24,982.5 Jan/79 Chief Joseph 24 95.0 25,077.5 Jan/79 Chief Joseph 25 95.0 25,172.5 Feb/79 Rock Island 14 51.0 25,223.5 Feb/79 Lower Monumental 4 135.0 25,358.5 Mar /79 Lower Monumental 5 135.0 25,493.5 Mar /79 Chief Joseph 26 95.0 25,588.5 Apr/79 Lower Monumental 6 135.0 25,723.5 Apr/79 Rock Island 13 51.0 25,774.5 May/79 Chief Joseph 27 95.0 25,869.5 Jun/79 Rock Island 12 51.0 25,920.5 Jun/79 Grand Coulee 23 700.0 26,620.5 Jul/79 Grand Coulee 24 700.0 27,320.5 Aug/79 Rock Island 11 51.0 27,371.5 Dec/80 Grand Coulee P/G 9 50.0 27,421.5 Apr/81 Grand Coulee P/G 10 50.0 27,471.5 May/81 Bonneville F-1 13.1 27,484.6 May/81 Bonneville F-2 13.1 27,497.7 May/81 Bonneville 18 66.5 27,564.2 Jul/81 Bonneville 17 66.5 27,630.7 Aug/81 Grand Coulee P/G 11 50.0 27,680.7 Sep/81 Bonneville 16 66.5 27,747.2 Nov/81 Bonneville 15 66.5 27,813.7 Dec/81 Grand Coulee P/G 12 50.0 27,863.7 Jan/82 Bonneville 14 66.5 27,930.2 Mar /82 Bonneville 13 66.5 27,996.7 May/82 Bonneville 12 66.5 28,063.2 May/82 Mayfield 4 40.5 28,103.7 Jul/82 Bonneville 11 66.5 28,170.2 Nov/83 Libby 5 105.0 28,275.2 Nov/83 Libby 6 105.0 28,380.2 Nov/83 Libby 7 105.0 28,485.2 Nov/S3 Libby 3 105.0 28,590.2 Jan/84 Libby Reregulating 1 15.4 28,605.6 Mar /84 Libby Reregulating 2 30.5 28,636.1 May/84 Libby Reregulating 3 30.5 28,666.6 Sep/85 Cougar a 35.0 28,701.6 Sep/85 Strube 1 4.5 28,706.1 No te: Additional data relative to these units are contained in the section on Additional Generating Capacity. 2282 057

SECTION V January Peak, Critical-Period Energy and 40-Year Averace Enerev Capabilities Columbia Mainstem Hydro Seasonal Hydro Pondage and Minor Hydro 2282 058 5 i. E

1979 WEST GROUP r0EECAS' JaHUApy prAW CEpa0ILITV JANU49V 1917 WA'ER VeAO F TGllQt S Ar.E mrGAWaTTs. 1979-90 1993-81 19al.p? 1987-a* 19mi-94 1094-85 9995 96 1996-R7 1997.qq 19ae.gq 19g9 90 CCL UNRI A MAINSTEM f5ED LIHaY llP A 145 las 164 398 696 FFP *?? 90F 978 Ato M27 ( -O L I 'l H Y PJ iF Gill A T INC 1PP 0 0 4 0 SP mm *n P8 na se en HlfNbRY HORSE mrA ?61 256 ?O T 249  ??1 *14 774 '39 309 771 173 N0XON RAPIDS dWP 548 54M 547 548 549 54T 549 544 549 549 549 C AllI NE T GCRGE WWp 230 21n ?30 730 7 10 230 23G 210 230 23n 7 10 g g ALUFN1 FALLS 994 ?4 ?4 75 24 24 74 ?4 25 25 ?4 25 __, 010 X CAP. YON ?EF9 P R . P U f' Fl FI TO Tl TO Tl 71 TI T2 Tl 12 ROUNDARY SEAT'lE 655 655 655 655 655 655 655 655 655 655 F55 1 SPOK A NF RIVrR WWD 19? lE? 05? 152 152 05? ICP 857 157 '5? 152 GR AND COUL Ef RPA 64 ? 6543 6691 6695 .6698 6588 66"T 6692 6699 6099 6699 CHIFF J95FPH RPA 7412 7 41 ? ?hl? 24f? 7482 74f? 2417 2457 ?4 t ? 7497 741? bdLLS 900GLAS 'On 870 i?O 970 "?1 ASO 9'O *?C 920 97a m?g 470 h CHELAN FHi t AN 081 R El 51 51 51 58 50 CI 59 56 '50 59 q - --. ROCKY REACH FHFL AH ptf 0 1767 8267 1267 1267 1767 176T I?67 126T I?6F 176T I?6T c' M ROCK I SL ANO CifLAN 000 544 544 544 544 544 544 544 544 544 544 544

 }            WANAPUM PRIEST RAPIOS ORANT 5' ' J 9 SRANT DUD 986 91' 996 912 99a 912 996 912 986 962 9m6 117 986       986        9P6      996     996 98 2      9e2        99?      98 2    997 DWORSHAK                      UPA                      400       455         440           660       435     460       454       450        469      440     406 LOWEF GRA NI 'E                R*A                     919       9 10        qin           910       910     910       9'S       91*        910      950     930 LITTLE GOOS?                  ama                      91n       9v9         95n           930       910     01g       910       910        91n      930     930 tOWiR MONUMLNIAL              'i P A                   930        lie        931           910      910      931       9'O       940        930      930     910 ICE HAR10R                    11 8 %                   691       692         693           F95      693      605       691       693        691      691     6*1 NCNAET                        8" A                    ll?F      fl27        1927          1127     8127     1927      1977     Il?T       ll?T     ll?T    ll?T JnHer 9 Ay                    aPA                    ?484       2494        7494         24*4      24R4    ?4*4       74*4     24R4       24mk     P4ag    2geg ROUND HUT'E                   PGF                      51 2      31?          18?          3t?       112     112        te 2     3e?        31 2     38 2    182 PFL T ON                      D T                      e24       lSb          g24          l?g       l24     l2g       g?g       l7g        l74      l24     g7g THE LALLES                    EPA                    ?Olm       2118        2388         2006      2018    ?198       2119     Sots       795m     'nlq    ?nts DONNEVILLE                    lTP A                    574       574         956         ll14      til4    til4       til4     $114       ll 14    1854    l134 N                                                       ....... ....... ....... ....... ....... .......                  ....... _...... ....... ....... .......

N S O ' T.L "AINSIf4 HYNn 26351 764.13 76997 ?T136 77403 21575 'TF70 21689  ? T Fl 4 77654 2F675 Q N O Ft 91 R AL 1AINSIf1 8944.1 19915 2122n 29468  ? G T 14 ?O908 71144 709n6 71087 71978 Pl048 Q FI% RAL N Y9 .0 IN9t pE N E N r5 806 e06 806 106 106 106 196 196 tot 106 106 g NET OfPOI% tOA95 46 846 206 296 ?q6 206 ?96 296 296 296 296 TOTAL riDF4AL H Y 98 0 ?104' 21167 '16?? 24870 21116 'l389 ?l446 ?1349 214P9 7141n ?t4s0

              '#ALI7AT104 FACT 9'                                -196'      -1TTA       -4111        -4063     -2557     '573     -7580     -?SP)    - 7 5 0 ',  2E9 7  .2593

1979 WEST GRf'UP F or.EC A ST J A *Uj ACY PFAW CA ACITY JANUADV 191F W4ffe vrao FIGOF,rs AGr afGAWATTS. 1979-9A 1991 41 tome _m, g g e 7. q 1 g9n3_gg g o stg _ gg g9q5_96 1996-67 1987-88 1949-R9 9993-90 5tA30tlAL nV i 0 hh ______________ g) C A q us % 1, A . L P4TOGF q ,,n e g he gl gg gg gg gg gl 41 40 41 48 Ho r **r  %  % 5 5 5 5 5 5 5 5 5 r.r Tii n! ' RPA 99 90 00 99 99 99 A9 99 94 HIG CLArr wA 99 99 e, 4 4 g g g g g g g g b LOOV00' PDINT 'I D A 71 Fl Fl FI Fl Fl F1 F8 Fl Fl 78 7E x12 PDA 6 6 6 6 6 6 f 6 6 6 6 0000 A.': anA 0 A 6 6 6 6 a. 7 47 4F 4F 47 S in u t!f TrA 9 0 0 P Q 7

  • O 2 2 2 HILLE C ffM PDA 19 10 10 10 10 30 14 30 0 A E c ts b- T r A OPA Fp 30 10 30 FR 73 79 76 TR 72 78 79 78 78 cOSTfr osA 6 A 6 6 6 6 Gag G Ov(

6 6 6 6 6 oGr 44 40 go 49 49 49 49 49 4q tif C T H r o; w p;F 49 49 s4 sg Sg Sg 54 s r. r,4 Sg s; 4 F Ak AH A v S t. 54 DGE g4 44 44 44 44 44 44 44 44 44 kg hlVil "f t L rir  ?' *3 23 23 '3 73 ?1 23 Sw!p r se eps- g 23 23 73 ien ign lam laa 188 188 199 IRA IAM 9PIFT 82 198 189 PPtL 76 T6 16 76 76 T6 F6 76 76 76 VAL- 76 PPtL lia lie il9 ilA flR 189 11' 519 918 IIA lin w e p w 1 *, opel ist 844 143 143 14% 141 143 641 144 1g4 144 wtA= ave RIVFD rest IFT e64 161 46' 863 e63 48.3 961 961 8F1 A L -)i l. TA00=a J f. 16 161 16 17 17 36 '9 46 48 39 48 L AGI At or TACOda 66 6% 65 65 65 65 65 65 65 65 65 CUSPWAN se T Aro

  • A '7 ?T 2F 77 7F 27  ?? ?F CU S _1 A 's #P 29 2R 30
                                            'ATO*A              98          %R           8'        Ma        9A        89        *1       68        8m     69       89 M AY F I' L 7                  'ACOMA             til                    1 TI        160 I il                              169      169        569     If9       169     169      169 MOS5Y'rCW                      TACO *A            P43        ?9'         293         291       793      '91        ?o3     703       '43     293      ?93 H ss                          ScATTLt             'FA        ?FF         ?F9        ?77        520      %?9        5'o DI AHLO                                                                                                                    5?9       520     %?9      579 SE AT TL5           069        164         169         154 N        t,0% >                        er a T 't c         476 159       159       169     859       169     159      IE9 ITS         1FG         175       ITS      O Fr       gpq     gyg       gys     gym N        WeilTr                        egrTe                43         41           s. y       41        41        43 gys 41       43       43      43       43 Q        Uf'P rr      8' A F ' ,       t s r g e,           94         a s.         gg         mg        mg        a4        mg       pg        p3     mi g        toy-p owcq                        cou              o          6'           67 33 67        67        or        Fr       <6       67      67 5AtIsa9 s-n. -ns~r eaA                                        un                                                                                       67 4,                      so         so        49        so        se       49       49 (CST C 2ir                    40A                                                                                                             ha       49 l1         f*            14        19                  gg        eq O                                                                                                        5m                           ga        gg     ga       gq
    &        v o f t.t sc r so. A.. .. v " o             _______      _______ _______ _______ _______ _______ _______ __.____ _______ _._____ _______
                                                             'rI 4       >r16      ' r l e.     '7ss       fala     inon       loa?    194a C                                                                                                                                           in c, s 3ns3     105s O

l l 1970 WFST 3E000 FOrECA97 JANUA Y DEAK CAPaaILITY JANUA"Y 1937 WATEh VFAP FIGURFS ace *EGAWATTS. 1979-80 r Wo.0 UG H 1989-90 PONOAGE AND MINOR MY0ro WATicVTLL: EUGEN: 9 LrA"URC FUGENE 12 CaANCLEd 409 4 e.0 Z a ( N E T ) OPA 1 R UU. -UN C3F  ?? T.J. SUL lit' AN oGr lq U'*o 00 A eptL 175 FDGUE op 2L 29 CONDIT, BIG r&MINGE pott 33 Y:L $1 CENTR ALI A lO CEna; r&NEWHALE1 S E A T TL E 37 S"0CU AL MIo ( "I N OF 590&L TP

           *; Y P F ALi s                      WWo                                  I PACvWOCD                            WPeS9                              30 MINCF - Y OI.0-0 T d E F c l/                                           4 S . IG A"0-S
  • ALL pl NT EPA ?6 S.ICA40-PUBLIC AGv 93A 7 TOTSL PON9 AGE & M_! N O : H Y O" O 490 if INCt. UDr S C ALISD EL C;Edk, "0Yle gpovggg gyg nyg Cr??M (F.I.D. _ 7tATwyA1 IgoIGATION or.o jeC T S) .

D'? DAu  %;D'"M e AR }*= 2282 061

19'o wrST GEOUP FORECAST CRIT! rat orgton ENgpcy capany(Ivy FIGHprs arr wrggwagys, 19 f 9-4 't 1910-99 1999 97 1997-91 1983 98 1944 85 1965 9E 1996-81 1987-R9 194R-99 1099-90 gr) g=s mel'n< IN C6ITICat d!8 l '1 4'.5 47.5 4?.c 47.5 4?.5 42.5 s. 2. 5 82.5 41.0 41.0 41.0 COLUHHI A waINSTEM L i tH Y PPA 196 to? 191 191 IST 171 I r. 0 158 148 149 149 L J 9 s* Y 4Ec cGUL A TI N( P," A t' O O O to 3? 29 79 29 79 79 C]J Hu GHy to Sr 9PA 06 os c4 95 94 95 95 45 95 44 is , y

   ^

td 4 0 h iAPIOS WWr Igg egg Igg 143 143 149 14e 14n Igy 14r Ogp CA9!Nf' GORGE ddu 106 10F 10f 106 IGF 196 106 106 to6 106 105 AL H: t4I F 4L l.5 90A ?E 75 SS 25 75 25 74 75 24 25 24 g[ lt o x C AN ycta tina 00.000 45 4' 46 46 360 46 160 86 169

8. 6 160
f. 6 360 47 16?

46 161 46 368 HO'J'J O Ai v SEATTLE 360 4 6 tl if0 SPoir ANF 'Ivro WWW 90 90 90 9B 90 9R 90 R9 91 91 99 69 4'!C COUl E E 'I P A 1915 191* 1989 1917 1983 1904 1908 1912 1895 1893 1955 rnIfF .3 7S 5' Pti Pot l ft s 4 IQ9R ti9F SnMF 8085, 8086 8046 00R5 4081 8081 1048 W F L '_ S 000Gl a *; 7 t s r- gg, r. 5 7 437 s.16 417 416 416 417 434 435 434 Cq s t A m. SHrLAN O'l D 3a 3A 39 59 38 19 18 38 3R 38 f,0CvY RfACH CHr L A'4 PU3 590 590 SP9 SR9 589 589 SR9 SSR 586 586 586 kOCv ISL AN9 CHELAN 009 174 7F9 270 ?F9 219 7FR ?TR ?FR 277 7FF 77F Waaspo- 5;rn' 009 55 7 557 557 SSF 557 556 55h 556 554 r,5 g 55g P Ii S r 640195 GRANY rV7 518 519 516 639 536 529 529 519 5?A 578 527

                   'lW 0s SH A <              9pA                         161          165            164             165    16?        165          161      166     16H      163     IST L owr f (+ 4 t I T E       9P4                         ?es          asT            21 7           256     795        795          21 5     215     ?I9      719     Fim LITTLE GOqSE               1PA                        21
  • 71 7 ?IF 216 716 215 fl5 215 Plc 289 219 L OW's CNIPic t.T AL PDA 78 6 ?tF 215 215 714 214 ?l l 211 250 2tn Pim ICE HA '*nt 't r A 91 7 ?lF 716 ?t 6 915 'IS 79 5 214 219 719 218 MCNAQy .itt a ( *. e 640 6 s. a 699 639 639 619 637 6 s. 3 642 64?

J 7 rtf 4 1AY ipa 075 9'4 0?4 427 972 a*8 075 971 924 974 971 00'80 f'UTTE r3r i s, 94 9g 94 sg 9g =4 ng 44 sg gg 6 7t T C*i cG5 80 40 4n 4* 40 40 40 44 40 60 40 g f r-? O ALL F S 9pA SIB %I9 Str AIF 98? 996 896 995 471 R?O 920 00NNEVisLF RP9 CSI 563 606 6'l a 609 699 608 609 61? 61? 6tl N _______ _______ _______ .....__ .______ _______ ____... _______ ______. _______ ______. O TOT AL MAINSTE* M f lN O 11560 I G 6'J ? 01616 10634 1062T 60676 10 t'if 10604 10607 16510 10549 N O Ch N O

                                                                                                                                                                                             ~*

1979 Wesy Go00P FOPICAST

                                                                                         ".o I' f r Al CE?T00 ENFRGY CAPA?ILITY FTG9RES AW M"GAWATTS.

@k) - 1979-90 1980 88 1988.q? 1997.m3 1983 88 199s.P5 19as.ef 1996 87 1947 8s 19ns.89 5999-90 C ,I MONIHS IN CCITIC AL Pfi'OO 4?.5 4?.5 47.5 42.5 42.5 42.5 47.5 4?.5 43.0 41.8 41.0 t ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... F! A501 AL hY3&C . . - - _ _ . . y ...____....__. h(CJ C A 8? *c N EU6ryr 70 20 ?0 70 70 70 71 70 70 20 70 a 15A.L 061 N- f :llGE NE 8 4 4 4 4 4 4 4 4 4 5 7 DElioff "*A 36 16 16 36 36 36 96 16 3M 38 18 HIG CLIFF PPA 10 10 40 _ . 10 .50 10 f t1 10 10 10 10 L OO K 0 tJ T pnINT PPA 76 '6 76 26 26 26 26 76 27  ?? FT rm 0F x t f ft 'l P A PSA 8 8 9 9 A 9 8 8 6 4 n C O U', A F tt 13 13 $3 $1 13 13 13 14 84 14 STINPF PAA P 0 0 a 0 0 2 2 3 3 3 h n!LLS ri.EEK OfA 15 15 15 is 15 15 15 15 I5 15 IS GREEN 6 t i L Ei 98A  ??  ??  ?? . 2? .?2 ?2  ?? 22 23 23 23 rustie 1PA 12 I? 12 12 12 I? 17 42 13 11 13 OAK GT OVr o;r 24 ?4 74 74 24 Pg 74 24 24 74 74 N OO Y r1 IOOK rG7 10 14 89 89 19 $9 19 19 21 20 75 FARAGAv #GF 17 17 17 IF 87 l7 17 g7 g8 jg gg f!V w "ILL car en 10 10 10 to 10 10 lo $0 10 lo SWIFT 81 8 PAL Sb 54 54 54 54 5% 54 54 56 56 56 SWIFT p? P P t.L  ?! 20 ?1 28 21 20 ?l 20 29 22 22 YALF PPtL 53 53 5' 53 51 51 53 51 54 54 54 N f 3. W I N PPil 52 52 57 5? 5? C? 52 57 53 53 53 KtAwATF EIvfR PPLL Sn 50 50 50 58 50 50 50 Sn 50 so AL 1( 6 YACO*A 19 19 19 50 59 19 19 19 70 20 70 LAG.GANQ( T A CO

  • A 11 13 31 iT 33  ?] 33 33 34 34 34 CUSM P A ff #l ' AC0 44 Il Il 50 ll II 18 #f al 18 Il el CilSM AN el TArqwA PJ '3 23 71 23 ?t 23 2 18 24 24 74 M Avrlit ' '400 ea 56 66 66 66 66 66 66 66 6R 68 68 "OSS Y 'CCV T A (;O
  • A 9M 48 09 94 GR 98 48 98 99 99 94 a u s's SEAT'LF 66 +6 66 66 tot 100 lol 501 tc? 107 102 114910 cf ST Yt m= 93 nt 83 93 41 m3 mi a4 84 44 6996f
  • E A T Yl. F 91 93 9' 9.1 91 41 94 93 94 94 98 CO W 41 ' E l' S p i t. 78 2a  ?* ?M 2R 79 'a 74 79 29 79 N yrog, nArge re s p g g. it 13 51 3i 53 31 v3 33 3g ig 3, L Ow' 4 Hikt? PSS(L 39 in 19 la 3P 19 18 14 3m 3R la g FrL:S A o r< .s.
                                   ,      I n A# e s' A                       59             69             64              69               59          69     69     69     FT    67   67 Ln5T C,rrK                       spa                    ??             72             27              22               2?                      22 O                                                                                                                                                    '2            79    Pt   28 U          TOTAL SfM;0NA.          4 f n ~. 0                  1148           114.7          1847           l i t. 7            IIST       l18'    1885   1994   I?O6  I?AF 1208

1979 WEST GROUP F3 RECAST SRITICAL PERICO ENERGY CAPABILITY FIGURES ARE MEGAWATTS. 1979-80 1957-86 THROUGH THROUGH 1966-87 1989-90 MONTHS IN CRITICAL PERIOD 42.5 43.0 PONDAGE AND MINOR HYORO WATERVILLE EUGENE 8 8 LEAGUPG EUGENE 12 12 CHANDLER BPA 7 7 ROZA(NET) BPA 5 5 BULL RUN PGE is IL T.W. SULLIVAN PGE 14 l* UMPOUA PP&L 97 98 ROGUE PPSL 34 35 CONDIT, BIG F& MINOR PP&L 26 26 YELM CENTRALIA 9 9 CEDAR F&NEWHALEM SEATTLE d S SN02UALMIE i MINOR PSP &L 47 48 HEYER FALLS WWP 1 1 PACKW030 WPPSS 7 8 MINOR HYORO-0THERS If 2 2 S. IDAHO-SMALL PLNT BPA 3C 29 S. IDAHO-PUBLIC AGY BPA 3 3 fGTAL PONDAGE & MINOR HYORO 320 32% l/ INCLUDES CALISPEL CREEK, M0YIE SPRINGS AND BIG CREEK (F.I.P. - FLATHEAD IRRIGATION PROJECTS). 2282 064

_ _ _ _ . . _ __ . _ _ . _ . _ _ _ . _ . ._ _ _ _ _ . _ .__ _ _19 L9 MES T. G ROUP. fDRE CAS f.._.___. __ _ _ _ _ _ _._ . _ _ _ _. 40-YEAR AVERAGE ENEFGY CAPABILITY FIGURES ARE NtGAWATTS. LOAD YE AR ST UDIED 1979-00 1980-81 1901-82 1982-83 1983-84 1984-85 1985-86 1956-87 1987-88 1988-89 1989-9C COLUMBIA HAINSTEM LIBBY BPA 215 286 216 286 221 205 18e 189 188 188 188 LIBBY REREGULATING OPA 0 L 0 s 14 36 33 33 33 33 33 _ HUNGRY. NORSE ___ DPA. . . . 106 _8 0 6_.. l o s ._ _. . _ I C 6_ _ _ _ 1 0 5 __ 106. _ 10 7 1166 _ _ 107 106 107 NOXON RAPIOS WhP 204 2C4 20 % 20 3 204 204 2C 4 204 2L4 200 204 CABINET GORGE WWP 839 13u 138 136 131 138 131 130 131 131 130 ALBENI FALLS BPA 24 24 2% 2* 24 24 23 24 23 24 23 00X CANYON PEND OR. PUD 56 50 53 50 50 SJ 50 50 50 50 50 000NOARY SEATTLE 449 449 45J 449 452 45C 450 45L 450 45C 448 SPUKANE ttlVER H W P. _ 185 _.114 _ .115 _. . l.1 4____ _ l.14 . . _ . 114 _ l14. 114. _ lik l14 113 GkAND COULEE OPA 22El 2242 224L 2237 2236 2248 2235 2238 2231 2232 2219 CHIEF JOSEPH BPA 8313 1345 IJ44 1343 1344 1343 1343 1343 1348 1341 1339 WELLS DOUGLAS PUD 518 SIS 518 586 517 SIS 587 518 515 516 514 CHELAN CHELAN PUG 46 46 46 46 46 46 46 46 46 46 46 ROCKY REACH CHELAN PUD 727 726 726 725 726 725 725 725 724 724 723 ROCK ISLAND CHELAN PU3 336 J J T_ 336 336__ 336 .J36 336 336 335 335 J34 WANAPUN GRANT PUD 665 665 664 663 E64 665 663 664 662 663 66u PRIEST RAPIDS GRANT PUO 625 625 625 624 625 625 624 625 622~ 623 6 21 DWORSHAK BPA 217 218 218 288 214 218 218 219 218 288 217 LOWER GRANITE OPA 3JJ 329 329 328 321 327 327 326 326 325 325 LITTLE GOOSE SPA 331 33C J33 329 329 328 327 327 327 326 J26 _. , LOWER MOUtJMENT AL BPA , 334 334 333 332 332 332 331 ,334 333 33C 329 ICE HARBOR BPA 317 387 316 316 J45 315 31 4 314 J13 31J llJ N NCNARY BPA SC4 oJ2 802 801 802 802 800 800 798 199 T97 N JOHN DAY BPA 1246 1248 1247 1246 1246 124* 1244 8244 1242 1242 1241 ROUNO uuTTE PGE 97 97 97 97 97 90 96 97 96 96 96 PELTON PGE 46 46 46 46 46 46 46 46 46 46 46 N TnE DAl,LES dPA ._ 1962 1062 I J 6 8 __. 1068 IG6i 1059 1;59 135a Iv58 luS7 1057 0 0NNE VIL LE DPA 556 569 729 753 75, 753 752 753 751 751 750 g ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... 7 TOTAL HAINSTEM HYORO 13126 IJI49 IJJG2 13369 13336 13J33 13Jt J 133fC 13281 13283 13249 L71

1979.WLST GROUP FORECAST _ . _ _ 40-YEAF AVEkAGE ENERGY CAPABILITY FIGURES AFd MEGAWATTS. L DAD YLAR STUDIED 1979-8'. 198C-81 1981-82 1952-83 1985-84 1984-85 1985-86 1986-87 1987 88 1988-89 1989-96 SEASONAL Hf0R0 CARMcN EUGtNE 27 27 27 27 27 27 27 27 27 27 27 TkAIL BRIDGE EUGENE 6 6 6 6 6 6 6 6 6 6 6 DLTROIT BPA 47 97 47 47 47 47 47 4T 47 47 47 BIG CLIFF OPA 11 18 la Il 11 11 18 ll Il ll 11 LOOKOUT POINT OPA 39 36 36 38 38 38 38 38 38 38 38 DEXTER BPA lu I; 10 40 IC 1. la 1. IG IE 10 COUGAR BPA 17 17 17 87 17 17 20 26 20 2C 20 STRUBE BPA 1 0 0 6 G s 3 3 3 3 3 HILLS CREEK OPA 19 19 .IJ l9 19 19 19 [ 'J 19 19 19 GFiEN PETER 8PA 29 29 29 29 29 29 _ 29 29 29 29 29 FOSTER OP A l a. 14 14 14 14 14 14 14 84 14 14 OAK GROWE PGE 27 27 27 27 27 27 27 27 27 27 27 NCRTH FORK PGE 26 2b 26 26 26 26 26 26 26 26 26 FARADAY PGE 23 23 23 23 23 23 23 23 23 23 23 RIVER MILL PGE 13 13_ 13 IJ 13 13 _ 13 13 13 13 13 SWI F T fl PP&L 74 74 74 74 74 74 74 74 74 74 74 SWIFT 82 PPLL 25 25 25 25 25 25 25 25 25 25 25 YALE PP&L 65 65 65 65 65 65 65 65 65 65 65 MERWIN PPLL 64 b4 b4 6* 64 64 b4 64 64 64 6* KLAMATH RIVER PP&L d% 84 84 84 8* 84 84 84 84 84 64 ALDER TACOMA 25 25 25 . 25_ ._25 25 25 25 25 25 25 LAGRANDE TACOMA 39 39 _ 39 39 39 39 _ 39 39 39 39 39 CUSHMAN fl TACOMA 13 13 13 13 13 13 13 13 13 13 13 CUSdMAN 82 TACOMA 25 25 25 25 25 25 25 25 25 25 25 MAVFIEL3 TACOMA 72 72 72 72 72 72 72 72 72 72 12 MOSSYROCK TACOMA 115 115 115 115 l15 115 115 415 185 115 115 PN) ROSS SLATTLE 83 63 53 83 123 124 124 123 124 424 124 N DIABLO SEATTLE 92 92 91 92 92 92 92 92 93 93 93 g GCRGE SEATTLE 8(6 i t, t 1.6 107 106 107 IC 7 107 407 10 7 IG7 WHITE PSP LL 36 36 36 3o 36 36 36 36 36 36 36 UPPiR BAKiR PSP LL 40 4u 43 46 40 4, *w 4. 40 40 4C LCWER BAKER PSPLL 4% 44 4* 44 44 44 44 4k 44 4* 4* C._) PALISADES-S. 10AMO UPA 73 73 73 73 73 73 75 73 73 73 73 e7s L6Sr CREEK UPA 35 35 35 35 35 J5 33 35 35 JS 35 FOTAL SEASONAL HYLRO 1417 1417 1486 1486 1457 1459 1465 1*64 1466 1466 1*66

                                                                                                                                                                     *9 99

1979 WEST GROUP FOG E C A ST 43-YEAR AVEF AGE ENERGY CAPABILITY FIGUDES AAE MEGAWATTS. LCAD YEAR STUDIED 1979-80 THROUGH 1989-90 PCNUAGE AND MINOR H Y O C,0 WATEDVILLE EUGENE 9 LEASUPG EUGENE 13 CHANDLER BPA A

0ZA(NET)
            .                                      SPA                               7 BULL CUN                                PGE                              12 T.W. SULLIVAN                           PGE                              14 UPPOUA                                  PP&L                           129
CGUE PPIL 4?

CONDIT, BIG F& MINCE PP&L 27 YELM CENTCALIA 9 CEDAC F&NEWHALEM SEATTLE 13 Sh000 ALM IE' & MI NGR PSP it 54 MFYER FALLS WWP I PACKWOOD WPPSS ll MINOR HYDRO-0THEG.S 1/ 3 S. IDAHO-SPALL PLNT BPA 37 S.IDAMO-PUBLIC AGY SPA I TOTAL PONCAGE & MINOR HYORO 3 93 t/ ILCLUDES CALISPEL CREEK, MOYIL SPRINGS AND BIG COEEK (F.I.P. - FLATHEAC IRRIGATION F30JECTS). 2282 067

SECTION VI Miscellaneous Industrial and Miscellaneous Suppliers - Peak and Average Pumping Requirements - Grand Coulee and Ro:a USBR Local Use at Grand Coulee Hanford-NPR - Peak and Energy Imports and Exports (East) - Peak and Energy Imports and Exports (Southwest) - Peak and Energy Imports (Canada) - Peak and Energy B.C. Hydro and Power Authority - Loads B.C. Hydro and Powe- Authority - Schedule of New Generating Units West Kootenay Power and Light Company, Limited - Loads 22L82 068

INDUSTRIAL AND MISCELIANEOUS SUPPLIERS Figures are megawatts, Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun PEAE Por tl and General Elec tric Company Lake Oswego Corp. 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 -- 0.5 0.5 0.5 Paci fic Power & 1.1ght Company U.S.B.R. - Green Springs 18.3 18.3 18.3 18.3 18.3 18.3 18.3 18.3 18.3 18.3 18.3 18.3 The Washington Water Power Company City of Spokane, Upriver Ilydro -- -- -- 2.0 4.0 4.0 4.0 4.0 4.0 1.0 -- -- Total PEAK 18.8 18.8 18.8 20.8 22.8 22.8 22.8 22.8 22.3 19.8 18.8 18.8 TOTAL PEAK USED IN REPORT 19 19 19 21 23 23 23 23 22 20 19 19 ENERGY Portland General Electric Company Lake Oswego Corp. 0.2 0.1 0.1 0.2 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Paci fic Power & Licht Company g U.S.B.R. - Green Springs 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.3 N The Washington Water Power Company CD Ci ty of Spokane, Upriver Ilydro 2.0 2.0 3.0 2.0 CB 2.0 2.0 -- - -- O Total ENERGY 7.5 7.4 7.4 9.5 9.7 10.7 9.7 9.7 9.3 7.7 7.7 7.7 .. TOTA 1 ENERGY USED IN REPORT 8 7 7 10 10 11 10 10 9 8 8 8

Pt'MPI NG REQUI REMENTS AT GRAND OCl l E AND RO?.A Peak and Energy Requirements Electric Energy and Water Estimated for Primary Pumping at Grand Coulee 1/ Estamated for the USbR-Roza Project Median or Adverse Ilydro Roza Point of Delivery Jul Aug Aug Sep Oct Nov Mar May Jun P. and Energy are mw. 1-15 16-11 Peak Ftw Averaec FN

     '979-80
  • Peak 373 272 0 0 0 0 36) 25b 27 2 Jul 5.2 4.7 Eneigy 372 27 2 0 0 0 0 226 106 264 Aug 1-15 5.2 4.7 Water - Avg. cfs 13,580 9,680 0 0 0 0 11,380 3,290 9,090 Aug 16-31 5.2 4.7 Sep 4.7 3.7 t_979-80
  • Peak 37 3 272 180 0 135 90 258 272 Oct 3.3 1.5 Energy 372 272 180 0 131 56 118 2 64 Nov 0.1 0.1 Water - Avg. cfs 13,580 9,680 6,400 0 4,690 2,000 1,680 9,090 Dec 0.1 0.1 1980-El Peak 373 272 180 1 35 90 0 258 272 Jan 0.1 0.1 Energy 372 272 180 131 56 0 128 264 Feb 0.1 0.1 Water - Avg. cts 13,580 9,680 6,400 4,690 2,000 0 3,970 9,090 Mar 1.1 0.2 Apr 1-15 2.8 1.0 1981-82 Peak 37 3 27 2 180 1 35 90 0 258 272 Apr 16-30 3.9 2.7 Energy 37 2 272 180 131 56 0 135 26'+ May 5.0 3.7 Water - Avg. is 13,580 9,680 6,400 4,690 2,000 0 4,180 9,090 Jun 5.2 4.2 1982-83 Peak 37 3 27 2 180 135 90 0 258 272 Energy 372 27 2 180 1 31 56 0 140 2 64 Note: The Roza irrigation loads Water - Avg. cfm 13,580 9,680 6,500 4,690 2,0Q0 0 4,340 9,090 apply to all years, medaar and adverse, and have been 1983-84 Peak 373 272 180 135 90 0 258 272 deducted from the gross Energy 37 2 272 180 1 31 56 0 144 2 64 capability of the Roza plant Water - Avg. cfs 13,580 9,680 6,400 4,690 2,000 0 4,460 9,090 and are not included in the loads.

1984-85 Peak 373 272 180 135 90 0 258 272 Energy 37 2 272 180 131 56 0 146 2 64 Water - Avg. cfs 13,580 9,680 6,400 4,690 2,000 0 4 , 54 0 9,090 19M5-86 Peak 37 3 27 2 180 135 90 0 258 272 Energy 372 27 2 180 131 16 0 149 264 Water - Avg. cfs 13,580 9,680 6,400 4,690 2,000 0 4,620 9,090 N [5%) 1986-87 Peak 37 3 272 180 135 90 0 258 272 Energy 37 2 27 2 180 1 31 56 0 1 51 264 CJC) p y Water - Avg. cfs 13,580 9,680 6,400 4,690 2,000 0 4,700 9,090 1987-88 Peak 373 272 180 135 90 0 258 272 (22) Energy 37 2 27 2 180 1 31 56 0 154 264

**%J              Water - Avg. cfu    13,580     9,680    6,400     4,690    2,000       0            4,780     9,090 C

1988-89 6 1989-90 Peak 37 3 272 180 135 90 0 258 27 2 Energy 37 2 272 180 1 31 56 0 156 264 Water - Avg. cfs 13,580 9,680 6,400 4,690 2,000 0 4,830 9,090 1/ These requirements leave been deducted f rom both peak and energy capabilities for Grand Coulee plant. Note: A. Columbia Basin irrigation r equi r emen t s are deduc ted arom flydro Resources and are not included in the load.

b. Primary pumping requirements at Grand Coulee are !!Sbk estimates of December 4,1978
  • Alternative schedules depending on contractor progress, load conditions and weather.
 ..y.

USBR LOCAL USE AT GRAND COULEE DAM Figures are mw. Jul Aug Aug Sep Oct Nov Dec Jan Feb Mar Apr Apr May Jun 1-15 16-31 1-15 16-30 1979-80 through 1989-90 Peak 2.0 2.0 2.0 2.0 2.0 3.0 4.0 4.0 3.0 3.0 2.0 2.0 2.0  ?.0 Energy 1.0 1.0 1.0 1.0 1.0 1.5 2.0 2.0 1.5 1.5 1.0 1.0 1.0 1.0 Note: These requirements have been deducted from both peak and energy capabilities for Grand Coulee Plant and are not included in the load. USBR estimates of December 4, 1978. N N CD N CD N ee

IIANFORD-NPR ESTIMATED MONTilLY CAPABILITIES Megawatts Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun PEAK 1979-80 thru 1989-90 0 0 0 0 0 0 0 0 0 0 0 0 ENERGY 1979-80 thru 1982-83 0 687 687 687 687 687 687 687 687 687 0 0 rs; 1983-84 thru 1989-90 0 0 0 0 0 0 0 0 0 0 0 0 N CD N _) Note: llanford-NPR plant is assumed undependable as a firm peak resource. The energy capabilities are ,s, based on 4.5 billion kwh operation per year for the period August through April of years 1979-80 N through 1982-83.

EXPORTS TO EAST Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun PEAK 1979-80 61 3 599 293 222 223 225 202 201 199 198 224 S00 1980-81 376 361 310 240 241 243 244 243 241 240 265 34 2 1981-82 377 362 311 241 242 289 290 291 242 241 266 343 1982-83 373 363 312 242 243 294 296 296 243 242 267 34 3 1983-84 379 364 313 243 244 247 248 246 244 243 268 345 1984-85 380 366 314 244 245 248 249 247 245 244 269 34 6 1985-86 382 366 315 245 246 249 251 248 246 245 270 347 1986-87 383 368 316 246 247 251 253 250 247 246 271 348 1987-88 384 369 168 97 99 102 104 102 99 97 123 200 1988-89 236 221 169 98 100 104 106 103 100 99 124 201 1989-90 233 223 171 100 102 106 108 105 102 100 126 203 ENERGY 1979-80 389 450 213 128 128 131 122 120 117 116 224 227 1980-81 265 357 264 178 180 183 184 162 149 178 240 273 1981-82 292 353 261 174 176 225 227 226 146 144 228 256 INJ 1982-83 268 350 257 170 173 226 229 191 144 151 258 263 FNJ 1983-84 278 274 181 94 96 100 114 99 85 106 256 273 CX? 1984-85 292 258 194 107 86 114 116 83 80 108 251 287 I'd 1985-86 282 278 184 97 100 104 106 103 100 98 271 277 q-) 1986-87 285 281 186 99 102 107 109 106 102 99 273 279

  -a      1987-88  287   283  188  101    104     109  112  108  105  101  275  282

(>4 1988-89 290 286 191 104 107 112 115 111 108 104 278 284 1989-90 293 289 193 106 109 115 118 114 110 106 280 287 9

IMPORTS FROM EAST Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun PEAK 1979-80 1018 1005 1018 1020 1070 1110 1149 1094 1059 1009 1009 1009 1980-81 1000 1000 1000 1000 1150 1190 1240 1185 1050 1000 1000 1000 1981-82 1000 1000 1265 1249 1589 1577 1665 1634 1286 1138 1151 1139 1982-83 1093 1214 1209 1193 1532 1516 1606 1578 1131 1082 1098 1183 1983-84 927 1019 1152 1135 1467 1448 1541 1515 1069 1022 918 903 1984-85 1113 1176 1089 1070 1400 1377 1472 1449 1006 957 854 729 1985-86 1048 1109 1022 1001 1327 1298 1398 1377 935 887 905 989 1986-87 977 1037 948 927 1248 1214 1317 1300 959 911 932 813 1987-88 901 858 650 1180 1164 1124 1232 1216 878 831 853 832 1988-89 819 655 687 994 1074 1028 1140 1128 792 745 768 747 1989-90 732 566 597 903 978 925 1042 1034 701 653 679 655 ENERGY 1979-80 888 902 883 925 1167 1167 1166 1134 1084 924 924 921 1980-81 915 915 915 947 1167 1167 1167 1166 1075 915 904 915 1981-82 893 915 1121 1048 1433 1426 1421 1425 1287 976 1027 1040 h[j 1982-83 999 1033 1018 1080 1394 1388 1383 1387 1148 979 943 1064 1983-84 849 932 1047 973 1353 1346 1340 1343 1092 935 841 783 CX) rs) 1984-85 1013 991 9 36 978 1307 1299 1291 1296 1035 876 784 671 1985-86 898 940 9 35 880 1256 1246 1240 1244 972 790 8 30 905 C:D 1986-87 894 756 868 827 1201 1187 1183 1187 955 807 816 747 'd 676 585 1016 1127 1091 1106 1110 878 731 742 749 1987-88 786 1988-89 709 530 604 862 1063 1004 1041 1045 828 668 679 655 1989-90 644 462 537 794 992 912 969 972 746 588 611 585

EXPORTS TO SOUTilWEST Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun PEAK 1979-80 2964 2964 2964 2464 1864 1864 1864 1864 1864 1864 2364 2964 1980-81 2964 2964 2964 2464 1864 1864 1864 1864 1864 1864 2364 3189 1981-82 3189 3189 3189 2464 1864 1864 1464 1464 1464 1464 1964 2564 1982-83 2564 2564 2564 2064 1464 1464 1464 1464 1464 1314 1814 2414 1983-84 2414 2414 2414 1914 1314 1314 1314 1314 1314 1314 1814 2414 1984-85 2414 2414 2414 1914 1314 1314 1314 1314 1314 1314 1814 2414 1985-86 2414 2414 2414 1914 1314 1314 1314 1314 1314 1314 1814 2414 1986-87 2414 1889 1889 1389 789 789 736 736 736 736 1194 1794 1987-88 1794 644 644 144 144 144 144 112 112 - 500 500 1988-89 500 500 500 - - - - - - - 500 500 1989-90 500 500 500 - - - - - - - 500 500 ENERGY 1979-80 431 454 479 470 452 328 435 408 404 444 434 444 1980-81 428 451 476 467 449 325 432 405 401 440 430 658 1981-82 642 665 690 463 445 321 153 132 132 131 131 131 ps) 1982-83 125 148 163 164 163 157 152 131 131 68 68 68 rs) 1983-84 40 40 40 40 40 40 40 40 40 40 40 40 C33 1984-85 40 40 40 40 40 40 40 40 40 40 40 40 FN) 1985-86 40 40 40 40 40 40 40 40 40 40 40 40 1986-87 40 40 40 40 40 40 40 40 40 40 40 40 E[ 1987-88 40 40 40 40 40 40 40 40 40 - - - ,33 1988-89 - - - - - - - - - - - - 1989-90 - - - - - - - - - - - - O

IMPORTS FROM SOUTilWEST Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun PFAK 1979-80 thru - - - - 100 100 100 100 100 - - - 1989-90 ENERGY 1979-80 415 415 415 415 415 415 415 448 448 448 449 448 80-81 415 415 415 415 415 415 415 448 448 448 449 448 81-82 415 415 415 415 415 415 415 448 448 448 449 448 82-83 415 415 415 415 415 415 415 448 448 448 449 448 83-84 415 415 415 415 415 415 415 415 415 415 415 415 84-85 415 415 415 415 415 415 415 415 415 415 415 415 I\) 85-86 415 415 415 415 415 415 415 415 415 415 415 415 I\4 86-87 352 265 265 265 265 264 250 250 250 250 240 238 87-88 233 81 81 81 81 81 79 72 72 - - - f( 88-89 - - - - - - - - - - - - 89-90 - - - - - - CD N ON

IMPORTS FROM CANADA Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun PEAK 1979-80 25 25 75 75 75 75 75 75 75 75 75 75 1980-81 75 75 75 75 75 75 75 75 75 75 75 75 1981-82 75 75 75 75 75 75 75 75 75 75 75 75 1982-83 75 75 75 75 75 75 75 75 75 75 75 75 1983-84 75 75 - - - - - - - - - - 1984-85 thru 1989-90 - - - - - - - - - - - - ENERGY 1979-80 20 20 60 60 60 60 60 60 60 60 60 60 1980-81 60 60 60 60 60 60 60 60 60 60 60 60 1981-82 60 60 60 60 60 60 60 60 60 60 60 60 1982-83 60 60 60 60 60 60 60 60 60 60 60 60 1983-84 60 60 - - - - - - - - - - N 1984-85 thru rs) 1989-90 - - - - - - - - - - - - CD N O N N O

BRITISil COLUMBIA IfYDRO AND POWER AUTil0RITY Load Estimates Figures are mw. Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun 1979-80 Peak 3820 3920 4030 4600 5170 5340 5280 5090 4870 4470 4250 4150 Energy 3036 3133 3142 3472 3775 3803 3937 3922 3772 3506 3353 3296 1980-81 Peak 4000 4100 4220 4820 5420 5680 5610 5340 5110 4740 4510 4400 Energy 3180 3280 3290 3640 3958 3996 4137 4110 3957 3724 3565 3497 1981-82 Peak 4250 4350 4480 5120 5760 6060 5980 5670 5430 5120 4870 4740 Energy 3379 3483 3494 3868 4207 4254 4406 4369 4208 4015 3S44 3765 1982-83 Peak 4590 4700 4830 5530 6220 6570 6480 6120 5870 5580 5320 5170 Energy 3648 3762 3771 4175 4542 4604 4769 4716 4546 4382 4199 4108 1983-84 Peak 5020 5140 5280 6040 6780 7180 7080 6670 6390 5970 5680 5520 Energy 3992 4110 4115 4559 4949 5012 5198 5135 49:3 4688 4489 4392 1984-85 Peak 5370 5490 5640 6460 7250 7680 7580 7130 6840 6330 6020 5850 Energy 4269 4395 4403 4878 5293 5370 5567 5493 5301 4969 4758 4647 1985-86 Peak 5690 5820 5980 6850 7700 8170 8070 7570 7270 6710 6380 6190 Energy 4524 4657 4665 5174 5619 5712 5923 5830 5632 5269 5040 4918 rs) 1986-87 Peak 6030 6170 6340 7270 8180 8710 8590 8040 7720 7110 6750 6540 rs) Energy 4793 4933 4944 5491 5968 6078 6304 6189 5983 5579 5333 5197 f()1987-88 Peak 6380 6520 6710 7710 8670 9270 9130 8520 8190 7530 7150 6910 Energy 5071 5219 5233 5819 6331 6461 6702 6562 6349 5913 5647 5497 Peak 6750 6910 7100 8170 9200 9850 9710 9040 8700 7970 7560 7310 ((]1983-89 Energy 5368 5524 5542 6169 6719 6872 7129 6963 6742 6249 5964 5806 cr) 1989-90 Peak 7140 7300 7510 8640 9730 10420 10270 9560 9200 8420 8000 7730 Energy 5672 5S40 5853 6516 7097 7261 7528 7359 7122 6600 6297 6131

BRITISil COI.UMBI A IlYDRO AND POWER AUTIIORITY 10-Year Generation Plan CAPACITY YEAR MONTil PROJECT UNIT (MW) 1979 Dec Peace Canyon 1 175 1980 Feb Peace Canyon 2 175 Feb G. M. Shrum 10 300 Apr Seven Mile 1 175 Apr Seven Mile 2 175 Jun Peace Canyon 3 175 Sep Peace Canyon 4 175 Oct Seven Mile 3 175 1983 Sep Revelstoke 1 450 Sep Revelstoke 2 450 Dec Revelstoke 3 450 1984 Jun Revelstoke 4 450 N CD N CD N D O

WEST KOOTENAY POWER AND LICllT COMPANY, LIMITED Estimated System Firm & Interruptible Loads Figures are mw. Jul Au e, Sep Oct Nov Dec Jan Feb Mar Apr May Jun FIRM 1.OADS 1979-80 Peak 493 415 517 591 638 665 700 660 619 606 576 564 Energy 394 312 414 461 500 524 548 519 495 490 467 455 1980-81 Peak 57 0 547 57 3 644 697 730 764 721 674 631 599 587 Energy 463 432 462 504 548 577 599 569 541 507 482 469 1981-82 Peak 594 571 597 67 2 729 764 800 754 704 739 706 693 Energy 478 448 477 521 569 599 623 591 561 604 579 565 1982-83 Peak 701 679 705 784 845 882 920 871 817 801 768 752 Energy 575 545 574 620 671 703 728 693 661 655 631 614 1983-84 Peak 759 733 756 846 913 949 988 935 877 829 794 778 Energy 624 589 615 669 726 756 782 745 710 674 648 631 1984-85 Peak 786 761 783 878 949 987 1027 971 909 858 821 805 Energy 642 607 633 689 749 781 808 768 732 693 666 648 1985-86 Peak 814 789 811 911 986 1026 1068 1008 942 888 849 832 Energy 660 625 651 710 774 807 835 793 754 712 684 666 1986-87 Peak 842 818 839 944 1025 1067 1109 1046 976 918 877 859 Energy 679 644 670 7 31 798 834 862 818 777 732 703 684 N rs) 1987-88 Peak 871 847 869 979 1063 1108 1152 1086 1011 949 906 888 CX3 Energy 699 663 690 753 824 861 890 844 800 753 722 703 N 1988-89 Peak 901 877 899 1015 1104 1151 1196 1126 1047 982 9 37 918 ff Energy 719 683 710 776 850 889 919 871 824 774 742 722 a 1989-90 Peak 931 909 930 1051 1145 1194 1241 1167 1084 1015 967 948 Energy 739 703 730 799 877 918 949 898 849 796 763 742 I NT V.RRllPT I BI.E 1.OA DS All rears Peak 55 55 55 55 55 55 55 55 55 55 55 55 Energy 30 30 30 30 30 30 30 30 30 30 30 30

                                          . \

SECTION Vil Loads Information on Loads Total West Group Load Total Loads Bonnevil?e Power Administration Chelan County PUD Clark County PUD Cowlitz County PUD Douglas County PUD Eugene Water & Electric Board Grant County PUD Grays Harbor County PUD Pacific Power & Light Company Pend Oreille County PUD Portland General Electric Company Puget Sound Power & Light Ccmpany Seattle City Light Snohemish County PUD Tacoma City Light The Washington Water Power Company Other Public Agencies 2282 081 1

INFORFIATION ON 1.0 ADS Total Load In this resource-planning report, the West Group Area plans to provide resources to serve the total peak and energy load. The total load consists of utilities' firm loads and Bonneville Power Administration's industrial load which is composed of firm, modified firm and interruptible loads. Interruptible Load Bonneville Power Administration's interruptible loads are as follows: 1979-80 1980-81 1981-82 1982-83 1983-84 1984-85 1985-86 1986-87 1987-88 1988-89 1989-90 Peak - Mw (January) 1079 1134 1132 1123 1133 1144 1154 1165 1175 1185 1195 Energy - Mw (July-June Avg. ) 1056 1109 1092 1100 1111 1121 1132 1142 1151 1162 1172 New Loads For technological changes, approximately one percent (1%) of the total BPA industrial load has been added to the g estimated loads starting in 1979-80. N CD 1979-80 1980-81 1981-82 1982-83 1983-84 1984-85_ 1985-86 1986-87 1987-88 1988-89 1989-90 N Peak - Mw O (January) 72 112 152 192 232 272 312 352 392 432 472 C0 N Energy - Mw (July-June Avg.1 72 112 147 192 232 272 312 352 392 431 471

TOTAL wtST GROUP LOAD JUL-JUN AV JUL AUG SEP OCT NOV DEC JAN FEU HAR APR 61AY J0M 79-80 PK Id6JS 18957 19748 21808 73F55 25468 26041 24632 23397 22169 21235 20002 79-80 AV 16743.50 14538 14H37 14808 15904 17771 19046 19669 18710 17805 16741 15717 15376 HC-81 PK 19553 19891 20747 22875 24939 26767 27345 25857 24519 23227 22241 2l045 HO-dl AV 11569.50 85275 15576 15553 16690 18672 2002J 20633 19645 18660 17540 16459 16100 Hl-d2 PK 20431 20747 21612 23844 26030 27979 26676 27096 25691 24335 23457 22205 HI-u? AV 18390.16 15950 16219 16168  !?352 19455 2090t 28643 20601 19561 16385 17410 17044 e?-H3 PK 21578 21909 22786 25152 27442 29490 J0046 28397 26929 25504 24425 23109 H2-83 AV 19326.J3 ItH71 17149 17092 18350 20550 22069 22684 21590 20497 19215 18084 17/05 d3 14 PK 22403 22747 23689 26126 28524 JO685 31162 29421 27903 26410 25305 2J940 HJ-H4 AV 2002H.66 17515 17680 17748 19031 21355 22950 23512 22358 21220 19937 16782 88326 04-u5 PK 23169 23570 24498 27014 2952H 38793 J22)6 30470 28886 27343 26187 24788 H4-n5 AV 20720.41 18095 88402 18320 19671 22076 2J744 24346 2Jt39 28948 20613 19343 18946 d5-H6 PK 2J908 24J97 25370 279/4 30593 32965 JJ514 31598 29957 28367 27867 25725 d5-H6 Av 21422.83 18697 19009 18933 20312 22815 24560 25199 23936 22697 24316 19996 19604 86-07 PK 24697 2S335 26330 2904J 31776 34235 34786 32777 38060 29396 2614e 26640 pgj N6-OF AV 22156.JJ 19J60 19676 1956l 20998 23599 25427 260P7 24764 23470 22029 20656 20249 N Q pgy e?-HH PK 23/84 26239 27279 10100 32959 35539 J6101 34002 32208 J0557 29170 27611 e7-dn AV 22922.58 20013 20339 20215 d i 713 24433 26J46 2!O26 256SF 24283 22785 21353 20926 O Q (jg He-09 PK 26/06 27891 20263 11899 34589 36u93 37462 35256 53182 31d70 30220 2861$ ee-69 AV 2J786.15 206ee 21029 20904 22451 25239 27J00 27996 26540 25820 23560 22015 21649 M9 *AO PK 21668 2H169 29283 12321 35448 38274 JHH45 36546 345d3 32711 18319 296A1 e9-90 AV 24531.06 21395 23749 21682 23280 26169 282/2 28969 2/470 23990 24369 22830 22397 IUIAL atSI G400P LOAD

                                                                                                                               ~

JUL-JUN AV JE AUG SEP OCT NOV OEC JAN FEu MAR APR MAY JUN LOAO-UUhNtVILLE PWH ADMIN. 7 9 -t10 PK 0410 e638 8892 9256 9806 10364 10693 10193 9786 9566 9369 0968 19-HO AV 7698.98 1826 7225 1835 7346 7875 8J79 6630 6248 7914 7662 7433 7412 MO-al PK 890e 9074 93e6 9769 iO353 io44u ni248 io70 io260 .0042 9 e i r. 94i2 30-88 AV 8092.25 1495 7589 7523 1746 8318 8850 9055 8668 8294 8023 7798 7760 61-H2 PK 9269 9428 9704 10115 10732 18J66 lle64 18268 10799 10571 10491 10069 HI-62 AV 6473.00 1773 7865 7749 7966 8586 915? 9542 9124 0737 845J 6365 8337 0 2- tl 3 PK 9901 10960 10335 10796 !!453 12124 124J6  !!818 11328 11092 10838 10399 d2-H3 AV M957.41 d344 8434 8312 6573 9204 9603 10013 9572 9165 8869 8611 8569 8 3 -114 PK 10191 10350 80656 11100 !!T96 12500 12885 12153 18648 18J96 81846 10701 33-84 AV 9207.75 H578 e672 8545 87H4 9463 10098 10310 9840 9418 9806 8848 8831 94-05 PK 10470 10632 80945 11418 12127 12670 13206 12507 11982 18738 18473 31026 H4-85 AV 9463.08 8815 8909 8766 9027 9716 10386 10610 10117 9677 9356 9094 90H4 US-un PK 10794 10945 11282 18748 12495 13274 13640 12906 12371 12135 18868 11486 H5-86 AV 9717.25 9053 9143 9003 9247 9962 10665 10905 10390 9935 9681 v344 9349 H6-MT PK  !!I81  !!354 11687 12178 12958 13759 14121 13345 12780 12538 12 2 4 'J 18784 t:6-6 7 AV 9995.25 93J9 9428 9247 9504 10242 109u0 11229 10688 10212 9673 959n 9605 py N Q 11540 18715 12064 12576 13406 14249 14619 13802 13206 13030 12637 12863 py el-da PK ril-un AV 10290.50 9608 9708 9509 9777 10552 18332 135H3  !!Ol2 10580 10lG7 9H68 9877 C No s9 PK 11 J04 12095 12456 12966 13066 14/55 15147 142HS 13057 I J 181 IJ0t? 12576

  • 998i 97e6 i0054 i0ebo iiL94 i i ,6 2 ii358 i0e29 iO46 i0ica i0ieb 0 8 - r$ 9 AV B060?.0d 9eo3 89-90 PK lt296 12497 12673 IJ417 14348 15260 13723 l*817 14847 13669 13542 13037 H9-10 AV 10944.OH 101H2 10266 10076 10351 11201 120n0 12381 I t 74 7 18192 Ichti 10501 10538 LU AU-t:Ubbt v lLLL 6% R ADMIN.

LOAO-ChELAN COUNTY PUO JUL-JUN AV JUL AUG Sup OCI NOV UEL JAN Ftu MAH APH MAY JbN 79-MO PK 306 311 307 335 353 Jo9 303 364 346 325 314 Jt2 79-60 AV 296.56 277 279 280 292 310 J24 333 317 300 266 280 281 H0-61 PK J12 386 313 342 361 J77 392 373 354 331 320 Jto 80-d1 Av 301.75 201 203 284 297 316 J31 340 323 306 298 284 285 Mt-n2 PK 319 J23 389 351 371 387 404 383 363 JJ9 J27 325 el-62 Av 307.67 285 286 289 303 322 339 349 330 312 296 2e9 290 H2-NJ PK J25 330 J25 358 379 397 414 393 J72 346 333 331 n 2 - tl 3 AV 313.25 290 292 294 JOS 32) 346 356 337 380 301 294 294 63-64 PK 356 361 357 392 414 432 451 428 406 379 365 363 HJ-H4 AV 339.08 314 317 319 334 356 374 304 364 344 326 318 319 d4-u5 PK 363 368 364 400 424 44J 46J 439 416 J87 373 370 e4-85 AV J45.42 389 322 324 340 303 382 393 372 350 332 324 324 e5-Oo PK 369 375 370 408 433 45J 473 448 424 J95 379 376 HS-H6 AV 351.08 324 327 329 345 364 J69 401 379 356 337 328 329 I\) 96-87 PK 376 382 377 417 443 464 485 459 434 403 387 363 I\3 d6-HF AV 357.17 328 J32 334 351 376 J97 410 Job 363 342 JJs 334 O N 87-U6 PK 382 309 3d3 425 452 4 74 496 469 443 480 394 3J0 CZ) M7-86 AV 363.00 333 336 339 357 383 404 448 393 369 347 336 339 Q LM He-69 PK 390 396 398 4.55 463 466 509 4MO 453 419 401 393 HU-H9 AV 369.50 336 342 344 363 390 413 427 404 376 353 J4J 344 09-JO PK 397 404 318 444 474 498 522 492 464 426 409 406 N 9 -' A O AV 376.50 343 348 350 370 396 422 4 16 480 J63 15 ') 34 9 356' LU AO-Ct tL AN COUNTY PUD

LUAO-CLAAK COUNiv PUD 1/ JUL-JUN AV JUL AUG SFP OCT NOV DEC JAN FEB MAR APH MAY JUN 79-60 PK 324 332 433 520 000 679 699 633 601 545 495 424 19-80 AV 357.75 221 226 261 34J 407 467 506 449 487 379 382 285 HO-81 PK 373 379 454 54' 630 T44 733 664 631 *J F 2 519 444 80-61 AV 376.15 264 269 293 358 427 469 520 474 436 396 325 29F 88-82 PK 388 391 476 57J 668 749 769 695 661 599 543 4 t,5 M1-62 AV 390.00 215 2dl 306 375 447 513 544 492 456 4tJ 340 Jto 62-H3 PK 406 415 478 600 694 786 805 T29 692 627 Soo 486 e2-83 Av 4 3.i7 2er 293 39 39: 467 536 56a 54 476 43: 354 322 63-H4 PK 424 433 528 629 126 622 del T60 722 654 593 500 H3-84 AV 430.50 298 304 332 408 488 560 592 536 496 449 368 335 e4-35 PK 448 452 542 656 757 859 878 193 F53 682 648 528 84-H5 AV 44H.50 311 Jt7 346 424 509 5H4 687 558 517 468 303 348 H5-do PK 460 470 566 684 F91 89F 915 U2/ 785 /tl 643 549 e5-86 AV 465.92 J22 326 360 442 529 609 642 500 537 406 397 361 N N

  @        d6-81 PK                          4 78 489  589  F12  624   935   953  661  817  139    669  S FI N        eb-87 AV                  484.J3  334  341  373  459  558   633   66e  603  550  505    412  375 CD g        67-66 PK                          497  508  612  741  858   974   991  895  e50  169    695  593 d?-88 AV                  502 83  346  354  307  477  572   659   694  626  579  524    420  368 ee-o9 Px                          Si5  52H  636  710  89:  10 3  iO3o  929  ea2  19e    722  65 ee-69 AV                  $28.42  359  366  401  495  594   be4   720  649  608  543    44J  402 H9-90 Pn                          535  541  660  800  926  1052  1063  964  985  U2e    748  .38 39-90 Av                  540.00  371  J79  485  StJ  616   109   T46  073  622  362    458  416 LOAO-CLANK CCUNTY PUD l/

I/ These loads are included in fiPA loads.

LOAD-06sLIll COUNTY PUU JUL-JUN AV JUL AUG SEP OCT NOV CtC JAN FEB MAR APR MAY JUN F9-60 PK 471 465 462 550 603 638 645 635 616 584 537 516 19-00 AV 468.92 33e 482 FJS 4F3 510 490 539 533 522 497 466 452 60-un PK 492 497 Sie 560 614 649 6 T7 666 646 613 564 547 00-n1 AV 490.00 367 442 421 404 523 506 560 555 543 558 486 475 61-82 PK 540 546 5 72 614 675 FAO 730 727 708 673 659 600 el-62 Av 536.00 419 404 463 527 567 556 680 603 591 564 532 586 d2-83 PK 626 6JT 657 704 761 798 805 195 776 140 684 663 e2-83 Av Sec.OO 45e 53: sis $80 e24 610 659 652 639 66 583 565 e3-H4 PK 649 661 679 F29 787 U26 634 822 804 766 710 687 d3-64 AV 616 58 494 572 548 688 660 637 688 680 668 640 606 588 H4-65 PK 669 660 699 FSO H10 658 856 645 825 187 728 FOF 84-HS AV 632.92 507 587 562 635 677 654 706 698 684 656 624 605 eb-86 PK 6e9 703 r22 774 837 ore 885 872 852 eia r52 13o F5-86 Av 653.00 524 606 581 655 696 675 728 720 706 6F6 643 624 e6-MT PK 705 117 737 792 854 695 90* 898 671 829 768 #35 H6-dl AV 665.42 535 617 592 66T Til 669 /43 733 719 be9 655 635 N N 87-66 PK F21 T30 754 809 874 916 925 9 t I- 898 849 Te6 F62 M7-8M AV 677.92 545 627 603 6F9 725 703 757 747 73J 102 667 641 Ne-M9 PK 135 74 H 169 820 892 9JT 944 938 909 P66 HO2 777 HH-M9 Av 690 42 556 63H 614 691 738 /t? TF1 762 146 155 6 F rJ 658 N 09 '70 PK 752 763 Tde 84L 914 958 906 952 930 e87 820 F95 H9-90 4v 703.92 567 650 626 704 752 134 re6 FF7 168 /29 694 6TD LO4D-CumLift COUNTY PUD

LUAO-0006LAS COUNTY PUD JUL-Juh AV JUL AUG SLP OCl NOV DEC JAN F Eas MAR APR MAY JUN F9-DO PK 00 82 78 83 98 LOR I12 96 94 29 4 85 80 79-60 AV 65.03 bl 63 60 56 69  ?? 82 73 65 bl 61 60 60-81 PK 62 US og U6 103 106  !!7 101 99 de 09 84 ti o - ti l AV c.H . 4 2 63 65 62 60 72 ti l t9 6 76 68 bJ 63 62 Mi-H2 PK d6 89 US 90 106 112 124 106 104 92 93 87 e 8 - t$ 2 AV 71.IT 6f5 67 64 62 75 84 90 79 7I 66 66 65 H2-33 PK 90 93 69 95 113  !!8 130 III 109 96 96 98 e2-63 AV F4 25 60 70 67 65 78 86 95 83 F4 68 68 67 e 3 - 14 4 PK 94 97 93 99 119 124 1J8 117 114 i00 802 96 HJ-84 AV 7,.50 70 73 09 67 82 9J 100 8F 77 Fl FI 70 84-85 PK 96 102 9F 104 126 131 145 123 820 105 107 800 e4-85 AV 81.00 F3 76 72 70 86 97 135 91 84 F4 F4 73 e5-86 PK IOJ 107 tot 109 133 IJo 154 129 127 til 11J IOS 65-06 4V 84.58 16 79 F5 73 90 102 110 95 84 78 FF 76 N N M6-8F PK 108 112 106 115 140 146 B63 137 134 116 119 ISO Q Re-et ? AV 2H.F5 80 83 78 76 94 108 416 100 89 ts t ut 79 N O e7-du PK 11J !E8 112 128 148 155 172 144 148 122 125 lib Q ti ? -a ts AV 93.47 83 ts 7 82 80 9'A 184 123 105 93 e5 tS 4 83 Q 88-69 PK I[9 124 8IF t27 157 864 192 152 44J B29 3 12 122 N ti- 0 9 AV 97.67 t* F 91 65 fl3 104 820 130 181 JF 69 ed 67 ts 9 - J O PK 125 131 123 134 lb6 iFJ 193 thi the 1 36 139 12 r1 89-90 AV IO2 50 9I 95 8J ts ? Ito 126 837 8iF 102 43 92 Jt LOAO-COUGLAS COUNTY PUD

LOAC-tuCthE w AND E HOARD JUL-JUN AV JUL AUG SLP OCT NOV DEC J4N FEO MAH APH MAY JUN 79-80 PK 266 275 329 401 448 495 500 467 441 402 J59 309 79-00 AV 265.42 led 193 212 257 308 J4J 351 326 302 275 225 205 _. HO-ul PK 274 279 JJ9 413 461 580 515 481 454 414 369 318 BC-HI AV 273.H3 194 199 219 265 Jia J54 362 336 J12 284 232 251 el-62 PK 282 287 349 426 475 525 SJO 495 460 426 380 327 el-u2 Av 282.83 200 206 226 274 329 366 374 347 J22 293 2J9 248 e2-83 PK 290 296 360 438 489 $41 546 siO 482 4J9 392 337 8 2 - tl 3 AV 291.92 207 282 2JJ 283 339 377 386 358 333 303 247 225 83-64 PK 299 305 370 451 503 557 562 525 496 452 404 J47 e3-84 AV 301 33 213 219 245 292 350 Ja9 398 370 343 383 255 233 H 4 -es 5 PK 3 0 tl 314 362 465 519 574 579 541 581 466 486 358 e4-o5 Av 311.00 220 226 249 301 361 402 4ll 362 354 323 263 240 e5-66 PK 317 323 393 479 534 591 597 557 526 460 42H 368 e5-ob Av 320.25 227 234 257 311 373 415 422 392 364 J35 270 247 N6-87 PK J25 J32 403 491 548 606 612 572 540 492 439 378 N N6-H7 AV J28.92 23J 240 264 319 383 426 434 403 3 74 340 27e 255 N O N 87-06 PK 333 340 413 504 562 621 627 SHb 553 $05 450 387 e 7-H tt Av 3JU.00 240 246 278 328 394 438 446 414 384 JSO 2e5 260 O O Q d e' - u 9 PK J42 349 424 587 576 637 b43 608 568 elH 462 397 "6-09 AV 347.0d 246 253 278 337 404 45U 4de 425 395 J59 293 267 39 'A0 PK 351 J58 4J5 530 5 J1 654 660 687 582 bJl 474 40# 09- A0 Av 356.b6 253 260 266 346 415 462 470 437 405 369 301 27$ L O A D- t t,6L ht W AND L UUARD

LOAD-GHANI COUNTY PUD JUL-Juh AV JUL AUG SLP OCT NOV OLC JAN FEO MAH APR NAV JUN 19-d0 PK 322 295 2 78 209 220 262 268 267 243 282 JO9 J26 19-HO AV 190.17 220 192 Id6 142 163 lub 195 286 175 205 203 224 HO-bl PK 338 307 2H3 288 230 275 305 304 257 299 J27 J47 HO-HI AV 201.33 232 208 164 148 176 197 207 230 187 218 216 240 61-82 PK 359 325 302 23J 245 290 385 313 265 380 339 360 31-32 AV 211.25 24H 283 175 159 190 207 284 238 193 226 224 248 H2-6 5 PK 373 338 383 240 253 299 331 330 279 325 356 318 92-83 AV 220.42 257 222 tot 164 195 284 225 250 203 238 235 261 33-u4 PK J98 356 320 253 266 314 346 344 292 348 31J 395 P3-u4 AV 231.33 270 233 890 17J 206 225 236 261 283 249 247 273 H4-uS PK 410 373 344 265 278 J29 357 356 301 353 Jd6 480 e4-u5 AV 240 92 283 244 200 162 217 234 244 270 220 258 256 283 e5-H6 PK 425 Jee 356 274 287 340 374 372 35 .i62 404 42. US-H6 AV 251.00 294 Ed3 207 189 224 242 255 262 238 278 20e 297 86-H7 PK 444 406 372 287 301 355 398 390 330 JHo 423 447 I\) d6-HT AV 263.0d 308 264 287 199 235 253 267 296 242 264 264 381 PN) Q 464 425 389 301 386 371 40a 407 345 403 442 467 PN) 87-He PK 87-HH AV 275.33 322 276 227 209 24H 264 279 309 254 297 294 J25 O

    @                                                                       42a  362 42J  464  490 He-e9 PK                  4e4  444 406     385   330 Jan 4/9 C3                                                                 293   324 267 J12   JC9  J48 HH-89 AV          288 5H  336  28M 237     220  260  276 69-90 PK                 500  466 426      331  347 407 450  449  JHO 445  4e7  544 P9- A0 AV          30J.00  353 302  2 4 ') 231   271 290  108  340 200  32n  324  356 L O AU- 664 Ah l CCUNTY POO

LOAD-GHAYS ttAHUGH PUD 1/ JUL-JUN AV JUL AUG SEP OCT NOV UtC JAN Fa- u MAN APH MAY JUN 75-80 PK 212 188 228 289 291 J10 316 308 313 270 253 220 79-80 AV 104.42 14J 135 let 176 208 2J2 234 221 212 189 1 78 158 00-H1 PK 219 193 235 298 301 324 325 315 386 281 258 224 60-61 AV 190.HJ 149 140 147 18J 237 242 243 227 216 195 176 155 HI-82 PK 225 199 242 307 J06 334 337 323 324 288 265 230 ol-H2 AV 198.08 155 146 153 190 223 254 252 235 223 202 183 161 02-H 5 PK 232 204 250 Jt6 316 346 350 342 34J Job 288 244 32-63 AV 205.58 159 149 156 195 228 260 269 247 235 212 192 169 83-H4 PK 242 242 261 330 329 359 J63 343 348 JO6 284 247 H3-84 AV 213.33 167 157 165 206 241 274 274 251 241 215 197 173 04-65 PK 249 218 269 340 339 J73 381 357 J62 Ji9 296 256 84-H5 AV 221.58 173 162 170 282 248 285 286 262 255 224 205 tot 85-66 PK 259 227 279 35J 352 J87 393 375 376 331 307 207 e5-86 AV 229.92 179 168 176 220 258 296 ?97 272 260 232 215 188 66-87 PK 268 235 289 366 J65 402 407 385 390 J4J 319 277 He-e7 AV 23H.67 166 175 183 228 268 J07 JOB 2t$2 270 248 221 195 N ei-88 PK 279 244 30 300 379 417 423 400 405 356 33 2e8 07-88 AV 247.58 193 188 190 237 278 319 J20 292 280 250 229 202 C en-H9 PK 2H9 254 381 394 394 433 439 415 420 J70 34J 299 e8-89 Av 257.0d 200 te8 197 2 4 t2 288 JJI 332 Joe 291 260 238 210 89-90 PK 300 263 323 409 409 449 455 430 436 384 J56 389 89-90 Av 2ch.75 20e 195 205 255 299 343 344 315 302 etu 247 2 t ti LOAD-ChAYS HAHudH PUD 1/ ' 1/ These loads are inc ud

  • s
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LOAD-PAC pmR 6 LIGHT CO. JUL-Juh AV JUL AUG StP OCT NOV OEC JAN FEU MAH APR MAY JUN 19-HO PK 2584 2635 2700 Jtou J217 J667 3567 3439 3202 30J8 3028 2542 79-00 AV 2016.67 1746 1782 8747 1883 2132 2310 2401 2278 2158 2005 1894 tehe HO-ut PK 2644 2778 2839 J270 3383 3857 J/52 3617 JJ68 3397 3177 2988 HO-HI AV 2820.92 1837 1814 1831 198u 2242 24JO 2525 2395 2269 2l05 1992 8965 ul-u2 PK 2779 2915 2985 3438 3557 4057 3991 3848 3582 3398 3372 3174 Hi-H2 AV 2244.42 1931 1978 19J3 208J 2359 '255F 2688 2551 2414 2239 2818 2009 H2-83 PK 2952 3097 3877 3653 3782 4312 4t99 4046 3769 3574 3549 3338 H2-HJ AV 2373.J3 2053 2094 2056 2217 2511 2720 2828 2684 2539 2356 2226 2196 e3-84 PK JtOS 3257 3342 3844 3980 4536 4417 4256 3964 3760 3733 3512 Ol-oA AV 2496.42 2157 2203 2161 233t 2641 2862 2975 2823 2671 2477 2344 2J10 e4-65 PK J266 3428 3515 4044 4tB6 4773 4646 4477 4870 3955 3926 3694 H4-65 A.' 2626.83 2269 2Jt7 2276 2453 2T79 3083 3131 2918 2810 2607 2466 2430 pg) e5-86 PK 3435 3605 3698 4252 4403 5022 4890 4712 4386 4860 4830 30a5 py e5-66 AV 2763.67 2J06 2438 2395 2581 2924 3170 3295 3126 2957 2742 2594 2556 Q N 06-6/ PK J614 3/92 JB91 4476 4634 5284 5t45 4957 4615 4J78 4346 4088 d6-8/ AV 2901.61 2511 2564 2520 2715 3077 JJJ4 J466 J289

           )                                                                                    Jitt  2885     2130  2690 m

Hi-H6 PK JHO! 3990 4 0 'k5 4 FI O 4874 5560 54I4 5247 4857 4605 45/1 4300 87-83 AV J059.50 2041 2698 265I 2826 3238 3509 3648 3461 J27J 3037 2878 2829 H8-e9 PK J999 4198 4JOS 9953 5829 SM5I 5698 5437 5810 e rs 4 4 4 HIC 4525 eH-n9 AV 1219.25 27/H 2639 2790 J006 3406 3694 3839 3642 3444 3894 J02t 2916 M9-80 PK 4207 44t7 45JO 52tJ 5394 6156 5995 2774 537H 5097 5062 4761 H9-90 AV JJe/.75 292J 2 'd 8 7 293/ JI63 35HT JHb7 4040 3332 3624 3362 J179 3332 L O A t;- F A(, PwH 6 LIGHI CO.

LUAU-PENO CHEILLE PUD JUL-JUN AV JUL AUG SEP OCI NOV ULC JAN FEU MAN AuH MAY JUN 79-80 PK 20 20 28 26 29 32 32 30 29 27 25 21 79-60 AV 17.d3 13 13 85 IF 20 22 23 21 20 19 to 15 0 0 -t$ l PK 21 21 29 30 31 JJ 34 32 30 26 26 22 d O - tt i Av t8.06 13 I3 IS le 21 23 24 2I 21 19 45 14 el-d2 PK 22 22 JI J2 33 35 36 33 32 30 28 23 HI-H2 AV 19 17 14 14 16 19 22 24 25 23 22 20 to 15 u 2 - t13 PK 23 24 J3 JJ J5 37 Ju 35 34 JR 29 24 e?-03 AV 20.00 15 15 to 20 23 25 26 24 23 21 IF 16 tt J-ts 4 PK 25 25 34 35 36 39 40 37 35 33 31 26 e3-84 AV 21 17 15 16 17 21 24 27 28 25 24 22 18 17 13 4 -fl 5 PK 26 26 36 37 38 4I 42 39 37 35 32 27 H4-65 AV 22.00 16 16 th 22 25 28 29 26 25 23 le to 65-86 PK 27 2 f5 38 JV 41 44 44 41 39 31 J4 Pet e5-66 AV 23.08 I7 17 19 2J 27 29 JI 27 26 24 49 lu N N t36-8 7 PK 29 29 40 41 43 46 47 44 41 39 36 30 Q H6-87 AV 24.25 18 l et 20 24 28 JR 32 29 27 25 20 49 N O e7-36 PK 30 31 43 43 45 49 49 46 44 44 Ju 32 g H 7 - U t3 AV 25 50 19 19 21 25 29 J2 34 30 29 27 21 20 W ed-69 PK 32 J2 45 46 48 58 52 4e 46 43 40 33 438-89 AV 26.63 20 20 22 27 11 J4 .15 32 JO to 22 24 t39-90 PK 34 34 47 to '30 54 55 'i l 4H 45 42 35 M9-90 Av 2d.17 28 21 24 28 52 36 37 33 32 29 e3 T2 LUAU-PLhD UREILLE PUD

a LO AD-FC.H I L AND G E CO. JUL-JUN AV JUL AUG SEP OCT NOV OEC JAN F Els MAR APH MAY JUN 79-00 PK 1856 1890 1951 2302 2561 2659 2888 264F 2503 2275 2156 1962 79-H0 AV 1676.67 1401 1470 1467 15H2 1823 1947 2000 1947 1830 1684 1510 1459 00-61 PK 1974 2010 2051 2410 2680 2778 2940 277T 260F 2376 2255 2060 60-HI AV 1762.67 1492 3566 1543 1661 1912 2041 2092 2052 1980 1766 1584 15J6 84-62 PK 2056 2069 2124 2489 2779 2904 3054 2883 2705 2464 2340 2435 31-02 AV 1831.25 1558 1610 159F 1716 1990 2139 2177 2135 1985 1834 1648 1593 H2-63 PK 2tJI 2142 2191 25T1 2877 J013 3177 J002 2818 2566 2445 22JI e2-HJ AV 8904.92 1615 1668 1654 177F 2002 2222 2269 2227 20FI 1915 1714 1665 H J - ti 4 PK 2224 2240 2304 2690 3003 3448 3308 3126 2944 2673 2554 2325 03-84 AV 1976./5 1667 1611 1/J2 IM60 2158 2J27 2359 2386 2154 1993 178F 1737 64-65 PK 2327 2389 2409 2789 3130 J276 3431 3242 3055 2/t5 265J 2417 H4-H5 AV 2068.00 1760 1622 1806 1938 2246 2420 2448 2405 2237 2011 1857 5806 H5-06 PK 2420 2483 2504 2895 3246 3401 3563 3366 3174 2685 2163 2517 e5-86 Av 2:50.17 iB30 ie95 inre 20i5 2332 25:2 2544 2500 2325 2:55 i934 ies2 I\.) PN) e6-6/ PK 2521 2588 2609 3006 JJ7E 3532 J690 3486 3290 2992 2867 268J CX3 H6-er Av 2233.92 1907 1975 1957 209e 2424 2681 2637 2598 2480 22J6 2007 1954 P\.) CZ) e7-co PK 2618 2687 270H 3184 3490 3659 JH2H 9618 J417 J110 290J 2719 sg) P7-HH AV 2320.17 1981 2051 20J2 2171 2581 2106 2738 2692 2504 2J25 2089 20J4 A Ud-09 PK 2726 2798 2HIN 32J2 3621 3/97 3952 3734 J528 3212 3083 2H12 PH-69 AV .?405 17 2C6J 21JT 2116 2265 2611 2681 2H2H 2780 2566 2403 2159 2103 e9-90 PK /e19 2894 2914 3336 3 7 3 ts 3920 4072 3050 3638 3513 3tel 2901 H9- so AV P4NS.OH 2154 2250 288H 234 2697 2903 2915 2867 2e67 2416 2221 2170 L U AU-Fl!H I L AhD G E CO.

LUAU-PUGli SOUND PEL CO. JUL-Juh AV JUL AUG SED OCI NOV DEC JAN FEtt MAR APH MAY JUN 79-80 PK 1605 16J6 1859 2251 2651 2853 2988 2641 2517 2206 1990 1839 79-30 AV 1639.17 1205 1231 1300 1529 1893 2089 2153 1986 4873 1639 1442 1330 HO-81 PK 1695 1728 1965 2380 2004 3018 3108 2884 2680 2351 2120 1960 HO-61 AV 1739.75 1273 1299 1374 1616 2002 2209 2293 2186 1994 1747 1537 1487 81-82 PK 1807 1843 2094 2536 2986 3214 3247 2940 2000 2456 2215 2048 ei-82 Av io34.58 i357 i386 i464 i722 2:32 2Js2 2396 22ii 2083 io2s i606 i48 82-83 PK 1888 1926 2388 2649 3120 3358 3396 3075 2929 2569 2387 2142 H2-H3 AV 1917.92 1418 1448 1529 1799 2228 2458 2506 2312 2179 1909 1680 1549 83-84 PK 1975 2014 2288 2778 3263 35:2 3522 3188 3037 2664 2402 2220 83-84 AV 1996 58 14 fl3 1514 1600 1881 2330 2S71 2599 2397 2259 1979 1741 1605 84-65 PK 2046 2006 2372 2873 3383 3643 J691 3342 3884 279J 2519 2330 84-d5 AV 2002.25 1536 1569 1658 1951 2416 2666 2724 2513 2369 2075 1826 1684 85-86 PK 2147 2189 2488 3012 3547 3818 3858 J493 3328 2989 26JJ 24J5 85-86 Av 2179 83 1612 1646 17J9 2045 2533 2794 2847 2627 2476 2169 1909 1761 H6-87 PK 2244 2288 2600 3148 3707 J990 4056 3672 3498 3069 2767 2560 86-87 AV 2285.3J 16e5 i72: i8i7 2:38 2647 292 2993 2762 2e03 22e0 2006 i85: rN) CX) n?-Sa PK 2358 2405 2713 3310 3897 494 4229 J829 3647 3899 28n5 2667 I\) 87-88 AV 2391.83 1771 1809 1980 2247 2783 J070 3128 2880 2714 23?? 2092 1928 CD

    %d)   de-69 PK                      2457   2506  2849  3458  4064  4J74  4453  4032   3840  3369  JO3e  28 0 l)7   88-39 Av        2506.75       1845   1884  1992  2343  2902   1202 J206  3032   20S7  2503  220J  2032 89-#0 UK                      2589   2640  3001  363J  4279  4u05  46S4  421S   4015  JS22  3876  2937 89 JO Av        26 2 *a . 4 2 1944   19H5  2047  2467  3055  JJ71  J435  3869   2987  2686  2301  212 7 LOAO-FUGLI SOUND P6L CO.                                                                                          '

d L O AO-Sti A l lLt CIIY LIGHT JUL-JUN AV JUL AUG SEP OCT NOV OEC JAN FLH MAQ APR MAY JUN T9-u0 PK  !!61 1844 1230 8437 1613 1714 1684 1624 1552 1458 1357 1243 79-80 AV 978.JJ 803 782 830 962 1059 !!J) 1861 til2 1059 993 907 849 80-81 PK 8187 !!69 1257 8469 1649 1753 1723 1662 1588 1491 1388 1272 e0-64 AV 993.42 BJ1 HOO 849 984 1082 1865 ! ! r* 8 !!37 10e3 1016 928 868 el-62 PK 1215 1896 1286 1503 1687 1/93 1788 1788 1641 1541 1434 1314 01-32 AV 1028 83 640 818 869 1006 1807 1892 1228 1876 1120 1050 959 897 U2-H3 PK 1255 1236 1329 1553 1744 1854 1873 1806 1726 1621 1508 1382 d2-M1 AV 1066.JJ 267 845 898 1040 1844 1232 1292 1237 1878 1808 1010 945 HJ-84 PK 1389 1299 1397 1633 1834 1950 1929 1860 1777 1670 1554 1424 H3-84 Av til0.T5 915 893 948 1097 1207 1J00 !J31 1275 1214 1139 1038 972 t'4-8d PK 1360 IJJ9 4440 168J 1869 2006 1967 1897 1812 1702 1584 1452 84-65 AV 1836.67 939 917 973 1820 1240 1J35 1358 1301 1239 1162 1059 991 e5-e6 PK IJH6 1365 1467 1710 1926 2047 2016 1944 1857 1744 1623 1487 HS-66 AV 1862.25 956 935 992 1849 1265 1362 1J92 1333 1270 1191 1085 1015 pgj 86-u7 PK 1420 IJ78 1504 1758 1974 2098 2047 1974 1886 litt 1648 1510 pgj H6-H7 AV 1185.17 981 958 101T 1177 1296 1J96 1413 1354 1289 1280 1801 1030 CO N HT-sh PK I442 1420 1527 1785 2004 2130 2107 2031 1943 1823 1696 1554 g- t*7-88 AV 12 t l . A2 996 973 1032 !!95 1386 !=18 1455 1393 IJ21 1245 Il3J 1060 T Ch MU-d9 PK I4H4 1468 15/t 1837 2063 2193 2123 2047 1956 IH37 1709 1566 U H - tP) AV 1233.50 1024 1001 1062 12JO 1354 1459 1466 1404 133/ 1255 1842 1068 H 9- #0 Pn 1495 8472 15d3 1858 2079 22to 2125 2049 195e 1839 B710 1561 u9- JO AV 1238.50 1032 1009 1970 1239 1364 14TO 1467 1405 IJJ6 I ta 6 1843 1069 L U A U- S t. A I I L ti CITY LIGHT

LOAD-ShCPOMISH PUD 1/ JUL-Juh AV JLL AUG SEP OCf NOV 000 JAN FEH MAM APH MAY JUN 19-80 PK 651 e88 788 900 1095 1868 1236 1142 1091 10/6 924 880 79-60 AV 579.50 382 405 437 556 684 723 7H5 730 696 595 513 448 80-HI PK 686 724 825 1026 1144 1236 1277 1878 1827 1064 955 838 80-81 Av 602.15 400 424 456 Sea 7i6 758 82 75. 720 bi6 Sai 463 al-H2 PK #11 751 854 1060 1883 1277 IJ20 8289 1865 1800 987 866 el-u2 AV 623.50 414 438 473 602 741 784 839 780 745 637 549 400 82-83 PK 735 776 881 1095 1223 1320 1352 1249  !!93 1825 1080 867 H2-83 AV 640.3J 429 454 488 62J 766 810 857 797 760 650 560 490 HJ-64 PK 752 794 902  !!22 1252 8353 1386 1279 1223  !!50 1032 905 H3-84 AV 653.42 437 462 499 636 782 627 875 813 775 663 572 500 64-H5 PK 767 812 925 1850 1284 1J86 1418 1310 1252  !!#3 1053 924 84-85 AV 667.00 446 473 509 649 798 845 893 829 792 677 584 509 US-e6 PK 7e4 e28 946 iiro i3 4 i4 9 i449 i339 mais ii97 iOr. 942 HS-06 AV 680.17 456 482 520 662 884 861 910 845 807 690 595 520 86-07 PK 199 d44 966 1202 1342 1450 1483 1368 1308 1222 1097 965 d6-87 AV 692.8J 465 491 529 674 8JO 878 927 H61 821 703 606 529 N N e7-06 PK e17 861 96H 1229 1372 1483 1512 1396 1334 1246 11to 982

   @       u?-HM AV                 705.42  473  500   539     686   845    695   943   Sto   836    115   611   538 N

g ee-69 PK eJ2 879 1009 a255 1400 8312 1541 1423 1361 1269 18Je 99) g ee-89 Av 711.5H 482 509 550 699 f16 0 910 958 890 USO 127 621 549 N 09-90 PK e47 895 1029 1279 1428 I543 1510 4450 3306 1290 845# BOto H9-90 Av 729.1/ 489 587 5 5 ts 712 H75 925 973 904 e64 139 631 55r to40-aceou t su Puu 1/ ' 1/ These loads are included in BPA loads.

LGAD-1ACOMA Cl1Y LIGHT JUL-JUN AV JUL A6G SLP OCT NOV OEC JAN FEtt MAR APR MAY JUN 79-60 PK 548 573 620 714 811 M41 6H5 819 198 747 674 643 79-60 AV 5b7.75 429 457 470 542 623 642 679 639 632 576 514 490 dO-Ut PK 579 605 655 755 858 889 935 665 836 189 700 679 80-H1 AV 589.42 453 403 496 STJ 659 679 788 675 668 60H 543 518 81-d2 PK 681 639 691 798 906 940 970 897 866 dia 734 70J U1-H2 AV 616.33 47U 509 524 605 696 TIH 744 700 693 630 563 536 62-63 PK 632 661 716 827 940 975 1005 930 890 647 760 727 H2-UJ AV 638.58 495 527 543 627 721 74 5 771 725 718 653 583 555 d1-64 PK 654 604 T4l 8d6 973 1010 1038 960 927 875 784 T5u N3-84

  • 660 47 512 545 562 649 74 7 772 797 T4 J 741 6 74 602 572 64-b5 PK 674 705 764 88J 1005 1043 1078 990 956 902 609 773 84-65 AV 681.00 528 562 579 670 772 797 822 773 764 095 620 590 H5-H6 PK 695 727 Ten 918 1037 1077 1805 1028 986 9JO 833 797 H5-66 AV 702.11 544 579 597 691 796 622 848 797 188 717 639 608 86-87 PK 715 748 811 939 1069 tito 1839 1053 I\) 8016 959 858 620 06-87 AV 723.42 560 596 615 782 623 648 8 74 821 r\) 682 FJ9 658 625 Q

I\3 es7-d6 PA 736 770 HJS 967 1101 1:45 ItTJ 8084 1046 907 804 e44 H7-88 AV 745.08 577 614 633 733 646 674 900 846 M36 O Foi 078 643 T C%) ee-o9 PK 757 798 859 996  ::34 1879 12JH talo tori 1086 909 M6a UH-89 AV 166.92 593 bJt 658 755 871 904 927 673 d68 163 697 662 e 9 --2 0 e'K 778 H13 H 8.5 1024 1867 8214 1245 1849 8806 IJ45 935 89 '70 AV 09/ 700.92 680 649 670 777 696 v27 954 896 eH6 005 717 bao L O Ate- I AC C M A CITY LIGHT

LOAO-sALH. m A IEid POWER CO. JUL-Juh AV JUL AUG StP OCT NOV OLC JAN F E ts MAH APH MAY JUN 7 9 - t10 PK 1016 997 8001 1825 1345 1494 15t6 IJ90 1277 1855 1042 1001 79-60 AV 87H.25 7JI TJM 741 828 981 1098 1832 1084 958 64J 768 131 80-dl PK 1047 1029 10J5 1873 1412 1574 1599 I464 1340 1208 108J 1038 e0-ni Av 9:i.67 754 762 766 856 iO3: 1:37 ine3 iO68 iOoS a82 ivi ibi Hi-62 PK 1086 1065 8010 1289 1476 1646 1625 1485 1358 1287 1085 1040 H1-62 AV 940.67 782 708 792 890 1078 1210 1206 1084 1018 089 792 759 d2-63 PK 1092 1069 1073 1229 1496 1673 1696 1546 1409 1258 1886 8066 32-33 AV 961.92 766 798 794 897 1092 4229 1250 1829 1057 918 814 778 83-H4 PK 1121 1096 1800 1265 1550 1735 1762 1605 1459 1299 1147 1094 93-84 Av 993.25 607 ei2 ai4 924 iiai i275 i307 tiFi 1094 248 e37 199 H4-d5 PK 1852 1828  !!31 1380 1613 1809 1640 1672 4517 !J45 tiat 1124 04-65 AV 1029.33 230 035 8J7 956 1878 1330 1365 1220 1838 988 862 820 85-86 PK 1884 1859  !!63 1354 1674 1862 1915 1737 1572 1389 1214 1853 e5-oh AV 1064.42 052 857 861 988 '222 1383 1421 1268  !!79 1014 8e6 e42 No-67 PK R215  !!89 !I93 1395 1734 1950 19H6 1797 1625 14JI 1247 1152 ub-H7 AV 1096.00 875 880 083 1018 1265 1433 I4 73 1312 1249 3045 910 863 ps) H7-MH PK 1246 1219 1223 1435 17:J0 20I6 20S4 tod7 1671 1473 1279 1280 ps) M1-88 AV  !!30.67 991 902 90S 1048 1307 1462 Bd24 1355 1257 1075 933 883 N M e -,i 9 Px ia77 i249 i2s3 i4r5 ie46 20ai 2:22 iyib i,27 ibia .3i i23., CE) ee-H9 Av 1363.00 919 924 927 tort 1347 1529 3574 139a 129s taos 9s? aos W 4 US-90 PK 13 J t: 1260 1284 ISIS 1908 2145 2107 1972 1777 1554 3342 12 6 ft, H9-90 AV 1895.25 942 947 950 1100 13H7 1576 1623 1440 4333 1834 980 925, LOAD-hAbb. mATLH POWER C () . .

d 9 LUAU-CIFtc PubLIC AGENCIE51/JUL-JUN AV JbL AUG SEP OCT NOV OLC JAN FEB MAR APR MAY Jbh 79-60 PK 2929 2987 2974 3080 3410 JF66 3951 3634 3422 3359 3256 3231 19-u0 AV 2475.00 2235 2219 2154 2103 2463 2640 2919 2757 2568 2470 2363 2416 d0-61 PK JISI 3203 J226 3342 3686 4067 4237 3885 3647 3570 3461 3431 80-64 AV 2658.00 2488 2448 2333 2362 2667 3065 3174 2940 2725 2688 2508 2561 el-82 PK 3334 3374 3398 3527 3895 4J08 4495 4109 3654 3774 3663 3628 Hi-62 AV 2002.75 2551 2584 2458 2469 2815 3241 3364 3ill 2e83 2770 2654 2713 82-63 PK 3529 3564 3594 3742 4134 4565 4752 4341 4072 3993 3871 3837 02-63 AV 2967.92 2707 2735 2602 2647 2992 J441 3555 3287 3045 2927 2 fs 05 2872 63-84 PK J726 3766 3796 3943 4363 4620 5012 4578 4291 4204 4080 4045 e3-84 AV 3127.i1 2e60 2e92 2752 2767 3:51 3628 3749 346: 3207 30,9 2953 3027 84-85 PK J924 3967 J998 4tSt 4599 5065 5295 4833 4527 4445 4307 4271 H4-MS AV 329H.67 J017 3049 2897 2934 3320 J826 3958 3652 33eo 3246 3113 3892 H5-H6 PK 4847 4886 4219 4380 4H59 5J74 5620 5827 4811 4 1.57 4592 4561 65-06 AV 34H3.17 Jad2 3217 3052 3089 3502 4035 4181 3856 3569 3438 3294 3390 e6-87 PK 4420 4473 4504 4669 5874 5704 5942 5419 5080 5001 4849 este 36e4.50 339: 3423 3237 326a 370: 4264 44:a 4072 3766 36 9 34,6 i5,9 ec-87 AV N N 5470 603J 62a0 5722 SJ61 52ic til5 ScH4 o7-no PK 4eoe 4723 4754 4926 CX) 3 <,0 7 429 3965 3809 3660 3769 e7-HH AV J8e5.ii 3580 3ei4 3414 J447 4505 466 pgj eH-e9 PK 4921 4905 5010 5897 5777 6378 6644 6049 5664 557J 5402 SJ6a g7) HH-oJ AV 4096.16 3711 Je07 35 A4 3620 4118 4/53 4926 4529 4381 4084 J856 3 ', 7 / q-) M9- JO PK 5895 5264 5286 5486 6804 674J 7002 6432 6013 5722 3748 570H 89-30 AV 43J6.41 J975 4016 3786 3825 4J45 5016 52J2 4611 4448 4.64 4 0 9 r. 42/6 L U A U - C i t t: H PudLIC AGENC IES 1/

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