WSP02437

• File Number: 8220.100.50
• Description: CRSP - Power Issues
• Basin: Colorado Mainstem
• Date: 1/1/1982
• Author: West. Sys. Coord. Co
• Title: Western Systems Coordinating Council Ten-Year Coordinated Plan Summary 1982 - 1991
• Water Supply Pro - Doc Type: Publication

30 I
TA8LE 18 I
ESTIMATED FIRM PEAK LOADS. RESOURCES
AND RESERVES 1982 - 1991 I
ROCKY MOUNTAIN POWER AREA
SUMMER PEAK ADVERSE HYDRO CONDITIONS
1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 I
Month JUL JUL AUG AUG AUG AUG JUL JUL JUL JUL
Fi nn Load - MW 5581 6002 6304 6737 7146 7556 7968 8333 86IO 9045
Growth From Previous Yr. - % 5.2 7.S S.O 6.9 6.1 5.7 5.5 4.6 3.3 5.1 I
Generation t Transfers - MW 7512 8075 8708 8712 8776 9206 9643 10553 10588 10599
Malnt./lnoperable Cap. - MW 156 0 74 25 2S 88 0 0 0 0
Reserve Capability I
MW 1775 2073 2330 1950 1605 1562 1675 2220 1978 1554
Percent of Firm load 31.8 34.5 37.0 28.9 22.5 20.7 21.0 26.6 23.0 17.2
Average Annual Summer Compound Growth Rate (1981-1991) - 5.5% I
WINTER PEAK ADVERSE HYDRO CONDITIONS
82-83 83-84 84-85 85-86 86-87 87-88 88-89 89-90 90-91 1991 I
Month JAN JAN JAN JAN JAN JAN JAN JAN JAN DEe
Finn Load - MW 5632 5961 6311 6741 7144 7443 7923 8218 8536 8713 1
Growth From Previous Yr. - % 9.4 5.8 5.9 6.8 6.0 4.2 6.4 3.7 3.9 2.1
Generation t Transfers - MW 7914 8640 8913 8921 9018 9865 10330 10818 10829 10807
Maint./lnoperable Cap. -MW 102 179 60 188 57 164 284 110 73 46 I
Reserve Capability
MW 2180 2500 2542 1992 1817 2258 2123 2490 2220 2048
Percent of Finn Load 38.7 41.9 40.3 29.6 25.4 30,3 26.8 30.3 26.0 23.5 I
Average Annual Winter Compound Growth Rate (1981-1991) - 5.4%
I
TA8LE 19
SUMMARY OF GENERATION ADDITIONS I
ROCKY MOUNTAIN POWER AREA
(WINTER CAPA8ILITY - MW)
Percent I
10 Yr. of
Generation Type 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 Period Total
Hydro - Conventional 0 24 18 3 22 0 0 0 0 0 67" 1.7 I
Hydro - Pumped Storage 106 100 0 0 0 0 0 0 0 0 206" 5.2
Steam - Coal 1100 400 250 0 0 885 0 88S 0 0 3520" 89.7
Steam - Gas & Oil 0 -18 0 0 0 0 0 0 -8 -17 -43 -1.1 I
Nuclear 0 0 0 0 75 0 0 0 0 0 75 1.9
Combustion Turbine 0 0 0 0 0 0 0 0 0 0 0 .0
Combined Cycle 0 0 0 0 0 0 0 0 0 0 0 .0 .1
Geothennal 0 0 0 0 0 0 0 0 0 0 0 .0
Internal Combustion 0 0 0 0 0 0 0 0 0 0 0 .0
Cogeneration 0 0 0 0 0 0 0 0 0 0 0 .0
Other -...i ~ ~ 100 ~ ~ ~ ~ ~ ~ 104" ~
Total 1210 506 268 103 97 885 0 885 -8 -17 3929 100.0
" See following page for a summary of significant generation additions.