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45
SPS
Station, Location and Unit Fuel Installed
Summer 2010
Net Dependable
Capability (MW)
S
team:
Harrington-Amarillo, Texas, 3 Units ............... Coal 1976-1980 1,018
Tolk-Muleshoe, Texas, 2 Units ..................... Coal 1982-1985 1,065
Cunningham-Hobbs, N.M., 2 Units ................. Natural Gas 1957-1965 257
Jones-Lubbock, Texas, 2 Units ..................... Natural Gas 1971-1974 486
Maddox-Hobbs, N.M. .............................. Natural Gas 1967 118
Moore County-Amarillo, Texas ..................... Natural Gas 1954 46
N
ichols-Amarillo, Texas, 3 Units ................... Natural Gas 1960-1968 457
Plant X-Earth, Texas, 4 Units ....................... Natural Gas 1952-1964 412
Combustion Turbine:
Carlsbad-Carlsbad, N.M. ........................... Natural Gas 1968 10
Cunningham-Hobbs, N.M., 2 Units ................. Natural Gas 1998 223
Maddox-Hobbs, N.M. .............................. Natural Gas 1963-1976 58
Riverview-Electric City, Texas ..................... Natural Gas 1973 22
D
iesel:
Tucumcari-Tucumcari, N.M., 2 Units ............... Diesel 1976-1979
—
(a)
Total 4,172
(a) This capacity is only available in emergency situations. Therefore, the on-demand net dependable capacity is zero.
Electric utility overhead and underground transmission and distribution lines (measured in conductor miles) at Dec. 31, 2010:
Conductor Miles NSP-Minnesota NSP-Wisconsin PSCo SPS
500 KV ................................................ 2,917
—
—
—
345 KV ................................................. 6,387 1,152 1,614 6,806
230 KV ................................................. 1,801
—
11,519 9,509
161 KV ................................................. 385 1,536
—
—
138 KV .................................................
—
—
92
—
115 KV ................................................. 7,362 1,736 4,882 11,365
Less than 115 KV ....................................... 82,692 31,809 72,946 21,130
Electric utility transmission and distribution substations at Dec. 31, 2010:
NSP-Minnesota NSP-Wisconsin PSCo SPS
Quantity ................................................ 369 204 222 421
N
atural gas utility mains at Dec. 31, 2010:
Miles NSP-Minnesota NSP-Wisconsin PSCo WGI
Transmission ............................................ 135
—
2,301 12
Distribution ............................................. 9,586 2,209 21,302
—