filings.toolsItem 2. PROPERTIES
17K 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, 2024 | 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, 6 Units | Natural Gas/Oil | 1974 - 2005 | 454 | ||||||||||||||||||||
| High Bridge-St. Paul, MN, 3 Units | Natural Gas | 2008 | 530 | ||||||||||||||||||||
| Inver Hills-Inver Grove Heights, MN, 8 Units | Natural Gas/ Oil | 1972 - 1996 | 276 | ||||||||||||||||||||
| Riverside-Minneapolis, MN, 3 Units | Natural Gas | 2009 | 454 | ||||||||||||||||||||
| Hydro: | |||||||||||||||||||||||
| Hennepin Island-Minneapolis, MN 5 Units | Hydro | 1954-1955 | 6 | ||||||||||||||||||||
| Wind: | |||||||||||||||||||||||
| Blazing Star 1-Lincoln County, MN, 100 Units | Wind | 2020 | 200 | (d) | |||||||||||||||||||
| Blazing Star 2-Lincoln County, MN, 100 Units | Wind | 2021 | 200 | (d) | |||||||||||||||||||
| Border-Rolette County, ND, 75 Units | Wind | 2015 | 148 | (d) | |||||||||||||||||||
| Community Wind North-Lincoln County, MN, 12 Units | Wind | 2020 | 26 | (d) | |||||||||||||||||||
| Courtenay Wind-Stutsman County, ND, 100 Units | Wind | 2016 | 190 | (d) | |||||||||||||||||||
| Crowned Ridge 2-Grant County, SD, 88 Units | Wind | 2020 | 192 | (d) | |||||||||||||||||||
| Dakota Range, SD, 72 Units | Wind | 2022 | 298 | (d) | |||||||||||||||||||
| Foxtail-Dickey County, ND, 75 Units | Wind | 2019 | 150 | (d) | |||||||||||||||||||
| Freeborn-Freeborn County, MN, 100 Units | Wind | 2021 | 200 | (d) | |||||||||||||||||||
| Grand Meadow-Mower County, MN, 67 Units | Wind | 2008 | 100 | (d) | |||||||||||||||||||
| Jeffers-Cottonwood County, MN, 20 Units | Wind | 2020 | 43 | (d) | |||||||||||||||||||
| Lake Benton-Pipestone County, MN, 44 Units | Wind | 2019 | 99 | (d) | |||||||||||||||||||
| Mower-Mower County, MN, 43 Units | Wind | 2021 | 91 | (d) | |||||||||||||||||||
| Nobles-Nobles County, MN, 133 Units | Wind | 2010 | 200 | (d) | |||||||||||||||||||
| Northern Wind-Murray County, MN, 37 Units | Wind | 2023 | 92 | (d) | |||||||||||||||||||
| Pleasant Valley-Mower County, MN, 100 Units | Wind | 2015 | 196 | (d) | |||||||||||||||||||
| Rock Aetna-Murray County, MN, 8 Units | Wind | 2022 | 20 | (d) | |||||||||||||||||||
| Solar: | |||||||||||||||||||||||
| Sherco Solar 1-Becker, MN, 63 units | Solar | 2024 | 223 | ||||||||||||||||||||
| Total | 8,623 |
(a)Summer 2024 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)Net maximum capacity is attainable only when wind conditions are sufficiently available. Typical average capacity factors are 35-50% for wind facilities. For the year ended Dec. 31, 2024, NSP-Minnesota’s wind facilities had a weighted-average capacity factor of 46%.
| NSP-Wisconsin Station, Location and Unit at Dec. 31, 2024 | 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, 4 Units | Natural Gas/Oil | 1973 | 189 | (c) | |||||||||||||||||||
| Hydro: | |||||||||||||||||||||||
| Various locations, 62 Units | Hydro | Various | 135 | ||||||||||||||||||||
| Total | 500 |
(a)Summer 2024 net dependable capacity.
(b)RDF is made from municipal solid waste.
(c)Retired unit in 2024.
| PSCo Station, Location and Unit at Dec. 31, 2024 | 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 | ||||||||||||||||||||
| 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 | (e) | |||||||||||||||||||
| Cheyenne Ridge, CO, 229 units | Wind | 2020 | 477 | (e) | |||||||||||||||||||
| Total | 6,203 |
(a)Summer 2024 net dependable capacity. Wind 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)Net maximum capacity is attainable only when wind conditions are sufficiently available. Typical average capacity factors are 35-50% for wind facilities. For the year ended Dec. 31, 2024, PSCo’s wind facilities had a weighted-average capacity factor of 44%.
| SPS Station, Location and Unit at Dec. 31, 2024 | Fuel | Installed | MW (a) | ||||||||||||||||||||
| Steam: | |||||||||||||||||||||||
| Cunningham-Hobbs, NM, 1 Unit | Natural Gas | 1957 - 1965 | 183 | ||||||||||||||||||||
| Harrington-Amarillo, TX 1 Unit | Natural Gas | 2024 | 339 | (b) | |||||||||||||||||||
| Harrington-Amarillo, TX 2 Units | Coal | 1976 - 1980 | 679 | (b) | |||||||||||||||||||
| 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 | (c) | |||||||||||||||||||
| Sagamore-Dora, NM, 240 Units | Wind | 2020 | 507 | (c) | |||||||||||||||||||
| Total | 5,100 |
(a)Summer 2024 net dependable capacity. Wind is presented as net maximum capacity.
(b)Harrington coal plant units 1-3 were retired in December 2024. Unit 2 was repowered to natural gas in the fourth quarter of 2024. Units 1 and 3 are also being repowered to natural gas in 2025, with Unit 1 having completed conversion in January and Unit 3 expected to be completed in the summer.
(c)Net maximum capacity is attainable only when wind conditions are sufficiently available. Typical average capacity factors are 35-50% for wind facilities. For the year ended Dec. 31, 2024 SPS’ wind facilities had a weighted-average capacity factor of 50%.
Electric utility overhead and underground transmission and distribution lines at Dec. 31, 2024:
| Conductor Miles | NSP-Minnesota | NSP-Wisconsin | PSCo | SPS | ||||||||||||||||||||||
| Transmission | ||||||||||||||||||||||||||
| 500 KV | 2,921 | — | — | — | ||||||||||||||||||||||
| 345 KV | 13,182 | 3,019 | 5,421 | 11,676 | ||||||||||||||||||||||
| 230 KV | 2,300 | — | 12,280 | 9,845 | ||||||||||||||||||||||
| 161 KV | 640 | 1,817 | — | — | ||||||||||||||||||||||
| 138 KV | — | — | 92 | — | ||||||||||||||||||||||
| 115 KV | 8,113 | 1,835 | 5,015 | 14,953 | ||||||||||||||||||||||
| Less than 115 KV | 6,627 | 5,324 | 1,796 | 4,501 | ||||||||||||||||||||||
| Total Transmission | 33,783 | 11,995 | 24,604 | 40,975 | ||||||||||||||||||||||
| Distribution | ||||||||||||||||||||||||||
| Less than 115 KV | 86,549 | 28,293 | 81,589 | 24,878 | ||||||||||||||||||||||
| Total | 120,332 | 40,288 | 106,193 | 65,853 |
Electric utility transmission and distribution substations at Dec. 31, 2024:
| NSP-Minnesota | NSP-Wisconsin | PSCo | SPS | |||||||||||||||||||||||
| Substations | 354 | 201 | 235 | 454 |
Natural gas utility mains at Dec. 31, 2024:
| Miles | NSP-Minnesota | NSP-Wisconsin | PSCo | SPS | WGI | |||||||||||||||||||||||||||
| Transmission | 78 | 3 | 1,998 | 35 | 11 | |||||||||||||||||||||||||||
| Distribution | 10,938 | 2,610 | 24,112 | — | — |
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