filings.toolsItem 2. PROPERTIES
18K characters. Original on sec.gov ·
Item 2. PROPERTIES
Virtually all of the utility plant property of the utility subsidiaries is subject to the lien of their respective first mortgage bond indentures.
| NSP-Minnesota Station, Location and Unit at Dec. 31, 2025 | Fuel | Installed | MW (a) | ||||||||||||||||||||
| Steam: | |||||||||||||||||||||||
| A.S. King-Bayport, MN, 1 Unit | Coal | 1968 | 511 | ||||||||||||||||||||
| Sherco-Becker, MN | |||||||||||||||||||||||
| Unit 1 | Coal | 1976 | 680 | ||||||||||||||||||||
| Unit 3 | Coal | 1987 | 517 | (b) | |||||||||||||||||||
| Monticello, MN, 1 Unit | Nuclear | 1971 | 617 | ||||||||||||||||||||
| Prairie Island-Welch, MN | |||||||||||||||||||||||
| Unit 1 | Nuclear | 1973 | 521 | ||||||||||||||||||||
| Unit 2 | Nuclear | 1974 | 519 | ||||||||||||||||||||
| Various locations, 4 Units | Wood/RDF | Various | 36 | (c) | |||||||||||||||||||
| Combustion Turbine: | |||||||||||||||||||||||
| Angus Anson-Sioux Falls, SD, 3 Units | Natural Gas | 1994 - 2005 | 343 | ||||||||||||||||||||
| Black Dog-Burnsville, MN, 3 Units | Natural Gas | 1987 - 2018 | 491 | ||||||||||||||||||||
| Blue Lake-Shakopee, MN, 2 Units | Natural Gas | 2005 | 300 | (d) | |||||||||||||||||||
| High Bridge-St. Paul, MN, 3 Units | Natural Gas | 2008 | 530 | ||||||||||||||||||||
| Inver Hills-Inver Grove Heights, MN, 6 Units | Natural Gas | 1972 - 1996 | 272 | ||||||||||||||||||||
| Riverside-Minneapolis, MN, 3 Units | Natural Gas | 2009 | 454 | ||||||||||||||||||||
| Reciprocating Generation: | |||||||||||||||||||||||
| Blue Lake-Shakopee, MN 3 Units | Natural Gas | Various | 24 | ||||||||||||||||||||
| Hydro: | |||||||||||||||||||||||
| Hennepin Island-Minneapolis, MN 5 Units | Hydro | 1954-1955 | 6 | ||||||||||||||||||||
| Wind: | |||||||||||||||||||||||
| Blazing Star 1-Lincoln County, MN, 100 Units | Wind | 2020 | 200 | (e) | |||||||||||||||||||
| Blazing Star 2-Lincoln County, MN, 100 Units | Wind | 2021 | 200 | (e) | |||||||||||||||||||
| Border-Rolette County, ND, 75 Units (f) | Wind | 2015 | 150 | (e) | |||||||||||||||||||
| Community Wind North-Lincoln County, MN, 12 Units | Wind | 2020 | 26 | (e) | |||||||||||||||||||
| Courtenay Wind-Stutsman County, ND, 100 Units | Wind | 2016 | 190 | (e) | |||||||||||||||||||
| Crowned Ridge 2-Grant County, SD, 88 Units | Wind | 2020 | 192 | (e) | |||||||||||||||||||
| Dakota Range, SD, 72 Units | Wind | 2022 | 298 | (e) | |||||||||||||||||||
| Foxtail-Dickey County, ND, 75 Units | Wind | 2019 | 150 | (e) | |||||||||||||||||||
| Freeborn-Freeborn County, MN, 100 Units | Wind | 2021 | 200 | (e) | |||||||||||||||||||
| Grand Meadow-Mower County, MN, 67 Units | Wind | 2008 | 100 | (e) | |||||||||||||||||||
| Jeffers-Cottonwood County, MN, 20 Units | Wind | 2020 | 43 | (e) | |||||||||||||||||||
| Lake Benton-Pipestone County, MN, 44 Units | Wind | 2019 | 99 | (e) | |||||||||||||||||||
| Mower-Mower County, MN, 43 Units | Wind | 2021 | 91 | (e) | |||||||||||||||||||
| Nobles-Nobles County, MN, 133 Units | Wind | 2010 | 200 | (e) | |||||||||||||||||||
| Northern Wind-Murray County, MN, 37 Units | Wind | 2023 | 92 | (e) | |||||||||||||||||||
| Pleasant Valley-Mower County, MN, 100 Units (f) | Wind | 2015 | 200 | (e) | |||||||||||||||||||
| Rock Aetna-Murray County, MN, 8 Units | Wind | 2022 | 20 | (e) | |||||||||||||||||||
| Solar: | |||||||||||||||||||||||
| Sherco Solar 1 and 2-Becker, MN, 130 units | Solar | 2024 - 2025 | 460 | (e) | |||||||||||||||||||
| Total | 8,732 |
(a)Summer 2025 net dependable capacity. Wind and solar is presented as net maximum capacity.
(b)Based on NSP-Minnesota’s ownership of 59%.
(c)RDF is made from municipal solid waste.
(d)Four units were retired in 2025.
(e)Net maximum capacity is attainable only when conditions are sufficiently available. Typical average capacity factors are 35-50% for wind facilities. For the year ended Dec. 31, 2025, wind facilities had a weighted-average capacity factor of 44%. For solar projects placed in service in 2025, factors will be available after a full year of operations.
(f)Repowered in 2025.
| NSP-Wisconsin Station, Location and Unit at Dec. 31, 2025 | 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/RDF | 1940 - 1948 | 16 | (b) | |||||||||||||||||||
| Combustion Turbine: | |||||||||||||||||||||||
| French Island-La Crosse, WI, 2 Units | Oil | 1974 | 119 | ||||||||||||||||||||
| Wheaton-Eau Claire, WI, 1 Unit | Natural Gas | 2025 | 206 | (c) | |||||||||||||||||||
| Reciprocating Generation: | |||||||||||||||||||||||
| Wheaton-Eau Claire, WI, 5 Units | Natural Gas | 2025 | 40 | (c) | |||||||||||||||||||
| Hydro: | |||||||||||||||||||||||
| Various locations, 62 Units | Hydro | Various | 135 | ||||||||||||||||||||
| Total | 557 |
(a)Summer 2025 net dependable capacity.
(b)RDF is made from municipal solid waste.
(c)Four combustion turbine units were retired in 2025 and replaced with one new combustion turbine and five reciprocating generation units.
| PSCo Station, Location and Unit at Dec. 31, 2025 | Fuel | Installed | MW (a) | ||||||||||||||||||||
| Steam: | |||||||||||||||||||||||
| Comanche-Pueblo, CO | |||||||||||||||||||||||
| Unit 2 | Coal | 1975 | 330 | ||||||||||||||||||||
| Unit 3 | Coal | 2010 | 500 | (b) | |||||||||||||||||||
| Craig-Craig, CO, 2 Units | Coal | 1979 - 1980 | 82 | (c) | |||||||||||||||||||
| Hayden-Hayden, CO, 2 Units | Coal | 1965 - 1976 | 233 | (d) | |||||||||||||||||||
| Pawnee-Brush, CO, 1 Unit | Coal | 1981 | 505 | (e) | |||||||||||||||||||
| 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 | 1,022 | ||||||||||||||||||||
| Manchief-Brush, CO, 2 Units | Natural Gas | 2000 | 250 | ||||||||||||||||||||
| Rocky Mountain-Keenesburg, CO, 3 Units | Natural Gas | 2004 | 592 | ||||||||||||||||||||
| Valmont-Boulder, CO, 3 units | Natural Gas | 1973 - 2001 | 119 | ||||||||||||||||||||
| Various locations, 5 Units | Natural Gas | Various | 128 | ||||||||||||||||||||
| Hydro: | |||||||||||||||||||||||
| Cabin Creek-Georgetown, CO | |||||||||||||||||||||||
| Pumped Storage, 2 Units | Hydro | 1967 | 210 | ||||||||||||||||||||
| Various locations, 6 Units | Hydro | Various | 23 | ||||||||||||||||||||
| Wind: | |||||||||||||||||||||||
| Rush Creek, CO, 300 units | Wind | 2018 | 582 | (f) | |||||||||||||||||||
| Cheyenne Ridge, CO, 229 units | Wind | 2020 | 477 | (f) | |||||||||||||||||||
| Solar: | |||||||||||||||||||||||
| Rocky Mountain Solar-Keenesburg, CO, 87 units | Solar | 2025 | 325 | (f) | |||||||||||||||||||
| Total | 6,528 |
(a)Summer 2025 net dependable capacity. Wind and solar is presented as net maximum capacity.
(b)Based on PSCo’s ownership of 67%.
(c)Based on PSCo’s ownership of 10%.
(d)Based on PSCo’s ownership of 76% of Unit 1 and 37% of Unit 2.
(e)Pawnee coal plant was retired in 2025 and completed conversion to natural gas in 2026.
(f)Net maximum capacity is attainable only when conditions are sufficiently available. Typical average capacity factors are 35-50% for wind facilities. For the year ended Dec. 31, 2025, wind facilities had a weighted-average capacity factor of 41%. For solar projects placed in service in 2025, factors will be available after a full year of operations.
| SPS Station, Location and Unit at Dec. 31, 2025 | Fuel | Installed | MW (a) | ||||||||||||||||||||
| Steam: | |||||||||||||||||||||||
| Cunningham-Hobbs, NM, 1 Unit | Natural Gas | 1957 - 1965 | 183 | ||||||||||||||||||||
| Harrington-Amarillo, TX 3 Units | Natural Gas | 2024 - 2025 | 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, 1 Unit | Natural Gas | 1952 - 1964 | 190 | ||||||||||||||||||||
| Tolk-Muleshoe, TX, 2 Units | 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 | 478 | (b) | |||||||||||||||||||
| Sagamore-Dora, NM, 240 Units | Wind | 2020 | 508 | (b) | |||||||||||||||||||
| Total | 5,101 |
(a)Summer 2025 net dependable capacity. Wind is presented as net maximum capacity.
(b)Net maximum capacity is attainable only when conditions are sufficiently available. Typical average capacity factors are 35-50% for wind facilities. For the year ended Dec. 31, 2025 SPS’ wind facilities had a weighted-average capacity factor of 47%.
Electric utility overhead and underground transmission and distribution lines at Dec. 31, 2025:
| Conductor Miles | NSP-Minnesota | NSP-Wisconsin | PSCo | SPS | ||||||||||||||||||||||
| Transmission | ||||||||||||||||||||||||||
| 500 KV | 2,921 | — | — | — | ||||||||||||||||||||||
| 345 KV | 13,394 | 3,019 | 8,233 | 11,668 | ||||||||||||||||||||||
| 230 KV | 2,299 | — | 12,393 | 9,863 | ||||||||||||||||||||||
| 161 KV | 610 | 1,816 | — | — | ||||||||||||||||||||||
| 138 KV | — | — | 92 | — | ||||||||||||||||||||||
| 115 KV | 8,137 | 1,860 | 5,004 | 15,044 | ||||||||||||||||||||||
| Less than 115 KV | 6,569 | 5,666 | 1,717 | 4,546 | ||||||||||||||||||||||
| Total Transmission | 33,930 | 12,361 | 27,439 | 41,121 | ||||||||||||||||||||||
| Distribution | ||||||||||||||||||||||||||
| Less than 115 KV | 87,271 | 28,582 | 84,079 | 25,261 | ||||||||||||||||||||||
| Total | 121,201 | 40,943 | 111,518 | 66,382 |
Electric utility transmission and distribution substations at Dec. 31, 2025:
| NSP-Minnesota | NSP-Wisconsin | PSCo | SPS | |||||||||||||||||||||||
| Substations | 352 | 208 | 236 | 466 |
Natural gas utility mains at Dec. 31, 2025:
| Miles | NSP-Minnesota | NSP-Wisconsin | PSCo | SPS | WGI | |||||||||||||||||||||||||||
| Transmission | 78 | 3 | 2,022 | 38 | 11 | |||||||||||||||||||||||||||
| Distribution | 11,117 | 2,628 | 24,291 | — | — |
Previous: Item 1C. CYBERSECURITY · Next: Item 3. LEGAL PROCEEDINGS