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43
Item 1B — Unresolved Staff Comments
None.
Item 2 — Properties
Virtually all of the utility plant property of NSP-Minnesota and NSP-Wisconsin is subject to the lien of their first mortgage bond indentures.
Virtually all of the electric utility plant property of PSCo and SPS is subject to the lien of their first mortgage bond indentures.
Electric Utility Generating Stations:
NSP-Minnesota
Summer 2012
Net Dependable
Station, Location and Unit
Fuel
Installed
Capability (MW)
Steam:
A.S. King-Bayport, Minn., 1 Unit .................................
Coal
1968
511
Sherco-Becker, Minn.
Unit 1 ........................................................
Coal
1976
680
Unit 2 ........................................................
Coal
1977
682
Unit 3 ........................................................
Coal
1987
507
(a)
Monticello-Monticello, Minn., 1 Unit .............................
Nuclear
1971
554
Prairie Island-Welch, Minn.
Unit 1 ........................................................
Nuclear
1973
521
Unit 2 ........................................................
Nuclear
1974
519
Black Dog-Burnsville, Minn., 2 Units .............................
Coal/Natural Gas
1955-1960
232
Various locations, 4 Units ........................................
Wood/Refuse-derived fuel
Various
36
(b)
Combustion Turbine:
Angus Anson-Sioux Falls, S.D., 3 Units ...........................
Natural Gas
1994-2005
327
Black Dog-Burnsville, Minn., 2 Units .............................
Natural Gas
1987-2002
271
Blue Lake-Shakopee, Minn., 6 Units ..............................
Natural Gas
1974-2005
453
High Bridge-St. Paul, Minn., 3 Units ..............................
Natural Gas
2008
534
Inver Hills-Inver Grove Heights, Minn., 6 Units....................
Natural Gas
1972
282
Riverside-Minneapolis, Minn., 3 Units ............................
Natural Gas
2009
470
Various locations, 17 Units .......................................
Natural Gas
Various
101
Wind:
Grand Meadow-Mower County, Minn., 67 Units ...................
Wind
2008
101
(c)
Nobles-Nobles County, Minn., 134 Units ..........................
Wind
2010
201
(c)
Total
6,982
(a) Based on NSP-Minnesota’s ownership of 59 percent. In November 2011, Sherco Unit 3, jointly owned by NSP-Minnesota and Southern Minnesota Municipal Power
Agency, experienced a significant failure of its turbine, generator and exciter systems. See Note 5 to the consolidated financial statements for further discussion.
(b) Refuse-derived fuel is made from municipal solid waste.
(c) This capacity is only available when wind conditions are sufficiently high enough to support the noted generation values above. Therefore, the on-demand
net dependable capacity is zero.
NSP-Wisconsin
Summer 2012
Net Dependable
Station, Location and Unit
Fuel
Installed
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
16
(a)
Combustion Turbine:
Flambeau Station-Park Falls, Wis., 1 Unit
..........................
Natural Gas
1969
12
French Island-La Crosse, Wis., 2 Units
.............................
Natural Gas
1974
122
Wheaton-Eau Claire, Wis., 6 Units ................................
.
Natural Gas
1973
290
Hydro:
Various locations, 63 Units ................................
........
Hydro
Various
135
Total
631
(a) Refuse-derived fuel is made from municipal solid waste.