Xcel Energy 2007 Annual Report Download - page 48

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PSCo
Summer 2007 Net
Dependable
Station, City and Unit Fuel Installed Capability (MW)
Steam:
Arapahoe-Denver, CO 2 Units .................. Coal 1951-1955 156
Cameo-Grand Junction, CO 2 Units .............. Coal 1957-1960 73
Cherokee-Denver, CO 4 Units .................. Coal 1957-1968 717
Comanche-Pueblo, CO 2 Units .................. Coal 1973-1975 660
Craig-Craig, CO 2 Units ...................... Coal 1979-1980 83(a)
Hayden-Hayden, CO 2 Units ................... Coal 1965-1976 237(b)
Pawnee-Brush, CO ......................... Coal 1981 505
Valmont-Boulder, CO ........................ Coal 1964 186
Zuni-Denver, CO 2 Units ..................... Natural Gas/Oil 1948-1954 107
Combustion Turbines:
Fort St. Vrain-Platteville, CO 4 Units .............. Natural Gas 1972-2001 690
Various Locations 6 Units ..................... Natural Gas Various 174
Hydro:
Various Locations 12 Units .................... Various 32
Cabin Creek-Georgetown, CO Pumped Storage ........ 1967 210
Wind:
Ponnequin-Weld County, CO ................... 1999-2001 —
Diesel Generators:
Cherokee-Denver, CO 2 Units .................. 1967 6
Total 3,836
(a) Based on PSCo’s ownership interest of 9.7 percent.
(b) Based on PSCo’s ownership interest of 75.5 percent of unit 1 and 37.4 percent of unit 2.
SPS
Summer 2007 Net
Dependable
Station, City and Unit Fuel Installed Capability (MW)
Steam:
Harrington-Amarillo, TX 3 Units ................ Coal 1976-1980 1,041
Tolk-Muleshoe, TX 2 Units .................... Coal 1982-1985 1,080
Jones-Lubbock, TX 2 Units .................... Natural Gas 1971-1974 486
Plant X-Earth, TX 4 Units .................... Natural Gas 1952-1964 442
Nichols-Amarillo, TX 3 Units .................. Natural Gas 1960-1968 457
Cunningham-Hobbs, NM 2 Units ................ Natural Gas 1957-1965 267
Maddox-Hobbs, NM ........................ Natural Gas 1967 118
CZ-2-Pampa, TX .......................... Purchased Steam 1979 26
Moore County-Amarillo, TX ................... Natural Gas 1954 48
Gas Turbine:
Carlsbad-Carlsbad, NM ...................... Natural Gas 1968 11
CZ-1-Pampa, TX .......................... Hot Nitrogen 1965 13
Maddox-Hobbs, NM ........................ Natural Gas 1976 60
Riverview-Electric City, TX .................... Natural Gas 1973 23
Cunningham-Hobbs, NM 2 Units ................ Natural Gas 1998 218
Diesel:
Tucumcari, NM 6 Units ...................... 1941-1979 —
Total 4,290
38