Xcel Energy 2011 Annual Report Download - page 54

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44
NSP-Wisconsin
Station, Location and Unit
Fuel
Installed
Summer 2011
Net Dependable
Capability (MW)
Steam:
Bay Front-Ashland, Wis., 3 Units .....................
Coal/Wood/Natural Gas 1948-1956
56
French Island-La Crosse, Wis., 2 Units ................
Wood/Refuse-derived fuel
1940-1948
17
Combustion Turbine:
Flambeau Station-Park Falls, Wis., 1 Unit .............
Natural Gas 1969
13
French Island-La Crosse, Wis., 2 Units ................
Natural Gas 1974
122
Wheaton-Eau Claire, Wis., 6 Units ....................
Natural Gas 1973
300
Hydro:
Various locations, 63 Units ...........................
Hydro Various
135
Total
643
PSCo
Station, Location and Unit
Fuel
Installed
Summer 2011
Net Dependable
Capability (MW)
Steam:
Arapahoe-Denver, Colo., 2 Units ..................... Coal 1951-1955 153
Cherokee-Denver, Colo., 3 Units...................... Coal 1957-1968 611 (a)
Comanche-Pueblo, Colo.
Unit 1 ............................................ Coal 1973 325
Unit 2 ............................................ Coal 1975 335
Unit 3 ............................................ Coal 2010 511 (b)
Craig-Craig, Colo., 2 Units ........................... Coal 1979-1980 83 (c)
Hayden-Hayden, Colo., 2 Units ....................... Coal 1965-1976 237 (d)
Pawnee-Brush, Colo., 1 Unit ......................... Coal 1981 505
Valmont-Boulder, Colo., 1 Unit....................... Coal 1964 184
Zuni-Denver, Colo., 1 Unit ........................... Coal 1948-1954 65
Combustion Turbine:
Blue Spruce-Aurora, Colo., 2 Units ................... Natural Gas 2003 264
Fort St. Vrain-Platteville, Colo., 6 Units ............... Natural Gas 1972-2009 969
Rocky Mountain-Keenesburg, Colo., 3 Units........... Natural Gas 2004 580
Various locations, 6 Units ............................ Natural Gas Various 173
Hydro:
Cabin Creek-Georgetown, Colo.
Pumped Storage, 2 Units ........................... Hydro 1967 210
Various locations, 9 Units ............................ Hydro Various 26
Wind:
Ponnequin-Weld County, Colo., 37 Units .............. Wind 1999-2001 25 (e)
Total 5,256
(a) Cherokee Unit 2 was taken out of service in October 2011.
(b) Based on PSCo’s ownership interest of 67 percent of Unit 3.
(c) Based on PSCo’s ownership interest of 10 percent.
(d) Based on PSCo’s ownership interest of 76 percent of Unit 1 and 37 percent of Unit 2.
(e) This capacity is only available when wind conditions are sufficiently high enough to support the noted generation values above. The on-demand net
maximum capacity is based on a company assumption of 12.5 percent dependable generation rate.