filings.toolsItem 2. PROPERTIES
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Item 2. PROPERTIES
Virtually all of the utility plant property of the operating companies is subject to the lien of their respective first mortgage bond indentures.
| NSP-Minnesota Station, Location and Unit | Fuel | Installed | MW (a) | ||||||||||||||||||||
| Steam: | |||||||||||||||||||||||
| A.S. King-Bayport, MN, 1 Unit (f) | Coal | 1968 | 511 | ||||||||||||||||||||
| Sherco-Becker, MN (e) | |||||||||||||||||||||||
| Unit 1 | Coal | 1976 | 680 | ||||||||||||||||||||
| Unit 2 | Coal | 1977 | 682 | ||||||||||||||||||||
| Unit 3 | Coal | 1987 | 517 | (b) | |||||||||||||||||||
| Monticello, MN, 1 Unit | Nuclear | 1971 | 617 | ||||||||||||||||||||
| PI-Welch, MN | |||||||||||||||||||||||
| Unit 1 | Nuclear | 1973 | 521 | ||||||||||||||||||||
| Unit 2 | Nuclear | 1974 | 519 | ||||||||||||||||||||
| Various locations, 4 Units | Wood/Refuse | Various | 36 | (c) | |||||||||||||||||||
| Combustion Turbine: | |||||||||||||||||||||||
| Angus Anson-Sioux Falls, SD, 3 Units | Natural Gas | 1994 - 2005 | 327 | ||||||||||||||||||||
| Black Dog-Burnsville, MN, 3 Units | Natural Gas | 1987 - 2018 | 494 | ||||||||||||||||||||
| Blue Lake-Shakopee, MN, 6 Units | Natural Gas | 1974 - 2005 | 447 | ||||||||||||||||||||
| High Bridge-St. Paul, MN, 3 Units | Natural Gas | 2008 | 530 | ||||||||||||||||||||
| Inver Hills-Inver Grove Heights, MN, 6 Units | Natural Gas | 1972 | 252 | ||||||||||||||||||||
| Riverside-Minneapolis, MN, 3 Units | Natural Gas | 2009 | 454 | ||||||||||||||||||||
| Various locations, 7 Units | Natural Gas | Various | 10 | ||||||||||||||||||||
| Wind: | |||||||||||||||||||||||
| Border-Rolette County, ND, 75 Units | Wind | 2015 | 148 | (d) | |||||||||||||||||||
| Courtenay Wind-Stutsman County, ND, 100 Units | Wind | 2016 | 190 | (d) | |||||||||||||||||||
| Foxtail-Dickey County, ND, 75 Units | Wind | 2019 | 150 | (d) | |||||||||||||||||||
| Grand Meadow-Mower County, MN, 67 Units | Wind | 2008 | 99 | (d) | |||||||||||||||||||
| Lake Benton-Pipestone County, MN, 44 Units | Wind | 2019 | 99 | (d) | |||||||||||||||||||
| Nobles-Nobles County, MN, 134 Units | Wind | 2010 | 197 | (d) | |||||||||||||||||||
| Pleasant Valley-Mower County, MN, 100 Units | Wind | 2015 | 196 | (d) | |||||||||||||||||||
| Blazing Star 1-Lincoln County, MN, 100 Units | Wind | 2020 | 200 | (d) | |||||||||||||||||||
| Crowned Ridge 2-Grant County, SD, 88 Units | Wind | 2020 | 192 | (d) | |||||||||||||||||||
| Community Wind North-Lincoln County, MN, 12 Units | Wind | 2020 | 26 | (d) | |||||||||||||||||||
| Jeffers-Cottonwood County, MN, 20 Units | Wind | 2020 | 43 | (d) | |||||||||||||||||||
| Total | 8,137 |
(a)Summer 2020 net dependable capacity.
(b)Based on NSP-Minnesota’s ownership of 59%.
(c)Refuse-derived fuel is made from municipal solid waste.
(d)Values disclosed are the generation levels at the point-of-interconnection for these wind units. Capacity is attainable only when wind conditions are sufficiently available (on-demand net dependable capacity is zero).
(e)A.S. King is expected to be retired early in 2028.
(f)Sherco Unit 1, 2, and 3 are expected to be retired early in 2026, 2023 and 2030, respectively.
| NSP-Wisconsin Station, Location and Unit | Fuel | Installed | MW (a) | ||||||||||||||||||||
| Steam: | |||||||||||||||||||||||
| Bay Front-Ashland, WI, 2 Units | Wood/Natural Gas | 1948 - 1956 | 41 | ||||||||||||||||||||
| French Island-La Crosse, WI, 2 Units | Wood/Refuse | 1940 - 1948 | 16 | (b) | |||||||||||||||||||
| Combustion Turbine: | |||||||||||||||||||||||
| French Island-La Crosse, WI, 2 Units | Oil | 1974 | 122 | ||||||||||||||||||||
| Wheaton-Eau Claire, WI, 5 Units | Natural Gas/Oil | 1973 | 234 | ||||||||||||||||||||
| Hydro: | |||||||||||||||||||||||
| Various locations, 63 Units | Hydro | Various | 135 | ||||||||||||||||||||
| Total | 548 |
(a)Summer 2020 net dependable capacity.
(b)Refuse-derived fuel is made from municipal solid waste.
| PSCo Station, Location and Unit | Fuel | Installed | MW (a) | ||||||||||||||||||||
| Steam: | |||||||||||||||||||||||
| Comanche-Pueblo, CO (b) | |||||||||||||||||||||||
| Unit 1 | Coal | 1973 | 325 | ||||||||||||||||||||
| Unit 2 | Coal | 1975 | 335 | ||||||||||||||||||||
| Unit 3 | Coal | 2010 | 500 | (c) | |||||||||||||||||||
| Craig-Craig, CO, 2 Units (d) | Coal | 1979 - 1980 | 82 | (e) | |||||||||||||||||||
| Hayden-Hayden, CO, 2 Units (h) | Coal | 1965 - 1976 | 233 | (f) | |||||||||||||||||||
| Pawnee-Brush, CO, 1 Unit | Coal | 1981 | 505 | ||||||||||||||||||||
| Cherokee-Denver, CO, 1 Unit | Natural Gas | 1968 | 310 | ||||||||||||||||||||
| Combustion Turbine: | |||||||||||||||||||||||
| Blue Spruce-Aurora, CO, 2 Units | Natural Gas | 2003 | 264 | ||||||||||||||||||||
| Cherokee-Denver, CO, 3 Units | Natural Gas | 2015 | 576 | ||||||||||||||||||||
| Fort St. Vrain-Platteville, CO, 6 Units | Natural Gas | 1972 - 2009 | 968 | ||||||||||||||||||||
| Rocky Mountain-Keenesburg, CO, 3 Units | Natural Gas | 2004 | 580 | ||||||||||||||||||||
| Various locations, 8 Units | Natural Gas | Various | 251 | ||||||||||||||||||||
| Hydro: | |||||||||||||||||||||||
| Cabin Creek-Georgetown, CO | |||||||||||||||||||||||
| Pumped Storage, 2 Units | Hydro | 1967 | 210 | ||||||||||||||||||||
| Various locations, 8 Units | Hydro | Various | 25 | ||||||||||||||||||||
| Wind: | |||||||||||||||||||||||
| Rush Creek, CO, 300 units | Wind | 2018 | 582 | (g) | |||||||||||||||||||
| Cheyenne Ridge, CO, 229 units | Wind | 2020 | 477 | (g) | |||||||||||||||||||
| Total | 6,223 |
(a) Summer 2020 net dependable capacity.
(b) In 2018, the CPUC approved early retirement of PSCo’s Comanche Units 1 and 2 in 2022 and 2025, respectively.
(c) Based on PSCo’s ownership of 67%.
(d) Craig Unit 1 and 2 are expected to be retired early in 2025 and 2028, respectively.
(e) Based on PSCo’s ownership of 10%.
(f) Based on PSCo’s ownership of 76% of Unit 1 and 37% of Unit 2.
(g) Values disclosed are the generation levels at the point-of-interconnection. Capacity is attainable only when wind conditions are sufficiently available (on-demand net dependable capacity is zero).
(h) Hayden Unit 1 and 2 are expected to be retired in 2028 and 2027, respectively.
| SPS Station, Location and Unit | Fuel | Installed | MW (a) | ||||||||||||||||||||
| Steam: | |||||||||||||||||||||||
| Cunningham-Hobbs, NM, 2 Units | Natural Gas | 1957 - 1965 | 225 | ||||||||||||||||||||
| Harrington-Amarillo, TX, 3 Units (b) | Coal | 1976 - 1980 | 1,018 | ||||||||||||||||||||
| Jones-Lubbock, TX, 2 Units | Natural Gas | 1971 - 1974 | 486 | ||||||||||||||||||||
| Maddox-Hobbs, NM, 1 Unit | Natural Gas | 1967 | 112 | ||||||||||||||||||||
| Nichols-Amarillo, TX, 3 Units | Natural Gas | 1960 - 1968 | 457 | ||||||||||||||||||||
| Plant X-Earth, TX, 4 Units | Natural Gas | 1952 - 1964 | 298 | ||||||||||||||||||||
| Tolk-Muleshoe, TX, 2 Units (d) | Coal | 1982 - 1985 | 1,067 | ||||||||||||||||||||
| Combustion Turbine: | |||||||||||||||||||||||
| Cunningham-Hobbs, NM, 2 Units | Natural Gas | 1997 | 207 | ||||||||||||||||||||
| Jones-Lubbock, TX, 2 Units | Natural Gas | 2011 - 2013 | 334 | ||||||||||||||||||||
| Maddox-Hobbs, NM, 1 Unit | Natural Gas | 1963 - 1976 | 61 | ||||||||||||||||||||
| Wind: | |||||||||||||||||||||||
| Hale-Plainview, TX, 239 Units | Wind | 2019 | 460 | (c) | |||||||||||||||||||
| Sagamore-Dora, NM, 240 Units | Wind | 2020 | 507 | (c) | |||||||||||||||||||
| Total | 5,232 |
(a) Summer 2020 net dependable capacity.
(b) Harrington is expected to be converted to natural gas by the end of 2024.
(c) Values disclosed are the generation levels at the point-of-interconnection for these wind units. Capacity is attainable only when wind conditions are sufficiently available (on-demand net dependable capacity is zero)
(d) Tolk Unit 1 and 2 are expected to be retired in 2032.
Electric utility overhead and underground transmission and distribution lines (measured in conductor miles) at Dec. 31, 2020:
| Conductor Miles | NSP-Minnesota | NSP-Wisconsin | PSCo | SPS | ||||||||||||||||||||||
| Transmission | ||||||||||||||||||||||||||
| 500 KV | 2,918 | — | — | — | ||||||||||||||||||||||
| 345 KV | 13,151 | 3,337 | 5,389 | 11,019 | ||||||||||||||||||||||
| 230 KV | 2,301 | — | 12,131 | 9,795 | ||||||||||||||||||||||
| 161 KV | 674 | 1,823 | — | — | ||||||||||||||||||||||
| 138 KV | — | — | 92 | — | ||||||||||||||||||||||
| 115 KV | 8,060 | 1,822 | 5,092 | 14,830 | ||||||||||||||||||||||
| Less than 115 KV | 6,556 | 5,306 | 1,682 | 4,375 | ||||||||||||||||||||||
| Total Transmission | 33,660 | 12,288 | 24,386 | 40,019 | ||||||||||||||||||||||
| Distribution | ||||||||||||||||||||||||||
| Less than 115 KV | 80,508 | 27,611 | 78,483 | 21,984 | ||||||||||||||||||||||
| Total | 114,168 | 39,899 | 102,869 | 62,003 |
Electric utility transmission and distribution substations at Dec. 31, 2020:
| NSP-Minnesota | NSP-Wisconsin | PSCo | SPS | |||||||||||||||||||||||
| Quantity | 352 | 204 | 236 | 457 |
Natural gas utility mains at Dec. 31, 2020:
| Miles | NSP-Minnesota | NSP-Wisconsin | PSCo | SPS | WGI | |||||||||||||||||||||||||||
| Transmission | 80 | 3 | 2,058 | 20 | 11 | |||||||||||||||||||||||||||
| Distribution | 10,629 | 2,492 | 22,815 | — | — |
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