ITEM 2 — PROPERTIES
−Removed: Virtually all of the utility plant property of the operating companies is subject to the lien of their respective first mortgage bond indentures.
+Added: 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
5 unchanged sentences
Unit 3 Coal 1987 517 (b)
−Removed: Unit 3 Coal 1987 517 (c)
Monticello, MN, 1 Unit Nuclear 1971 617
+Added: Prairie Island-Welch, MN
Unit 1 Nuclear 1973 521
Unit 2 Nuclear 1974 519
−Removed: Various locations, 4 Units Wood/RDF Various 36 (d)
+Added: Various locations, 4 Units Wood/RDF Various 36 (c)
Combustion Turbine:
7 unchanged sentences
Hennepin Island-Minneapolis, MN 5 Units Hydro 1954-1955 6
−Removed: Blazing Star 1-Lincoln County, MN, 100 Units Wind 2020 200 (e)
−Removed: Blazing Star 2-Lincoln County, MN, 100 Units Wind 2021 200 (e)
−Removed: Border-Rolette County, ND, 75 Units Wind 2015 148 (e)
−Removed: Community Wind North-Lincoln County, MN, 12 Units Wind 2020 26 (e)
−Removed: Courtenay Wind-Stutsman County, ND, 100 Units Wind 2016 190 (e)
−Removed: Crowned Ridge 2-Grant County, SD, 88 Units Wind 2020 192 (e)
−Removed: Dakota Range, SD, 72 Units Wind 2022 298 (e)
−Removed: Foxtail-Dickey County, ND, 75 Units Wind 2019 150 (e)
−Removed: Freeborn-Freeborn County, MN, 100 Units Wind 2021 200 (e)
−Removed: Grand Meadow-Mower County, MN, 67 Units (f)
−Removed: Wind 2008 99 (e)
−Removed: Jeffers-Cottonwood County, MN, 20 Units Wind 2020 43 (e)
−Removed: Lake Benton-Pipestone County, MN, 44 Units Wind 2019 99 (e)
−Removed: Mower-Mower County, MN, 43 Units Wind 2021 91 (e)
−Removed: Nobles-Nobles County, MN, 133 Units Wind 2010 200 (e)
−Removed: Northern Wind-Murray County, MN, 37 Units (g)
−Removed: Wind 2023 92 (e)
−Removed: Pleasant Valley-Mower County, MN, 100 Units Wind 2015 196 (e)
−Removed: Rock Aetna - Murray County, MN, 8 Units Wind 2022 20 (e)
+Added: Blazing Star 1-Lincoln County, MN, 100 Units Wind 2020 200 (d)
+Added: Blazing Star 2-Lincoln County, MN, 100 Units Wind 2021 200 (d)
+Added: Border-Rolette County, ND, 75 Units Wind 2015 148 (d)
+Added: Community Wind North-Lincoln County, MN, 12 Units Wind 2020 26 (d)
+Added: Courtenay Wind-Stutsman County, ND, 100 Units Wind 2016 190 (d)
+Added: Crowned Ridge 2-Grant County, SD, 88 Units Wind 2020 192 (d)
+Added: Dakota Range, SD, 72 Units Wind 2022 298 (d)
+Added: Foxtail-Dickey County, ND, 75 Units Wind 2019 150 (d)
+Added: Freeborn-Freeborn County, MN, 100 Units Wind 2021 200 (d)
+Added: Grand Meadow-Mower County, MN, 67 Units
+Added: Wind 2008 100 (d)
+Added: Jeffers-Cottonwood County, MN, 20 Units Wind 2020 43 (d)
+Added: Lake Benton-Pipestone County, MN, 44 Units Wind 2019 99 (d)
+Added: Mower-Mower County, MN, 43 Units Wind 2021 91 (d)
+Added: Nobles-Nobles County, MN, 133 Units Wind 2010 200 (d)
+Added: Northern Wind-Murray County, MN, 37 Units Wind 2023 92 (d)
+Added: Pleasant Valley-Mower County, MN, 100 Units Wind 2015 196 (d)
+Added: Rock Aetna-Murray County, MN, 8 Units Wind 2022 20 (d)
+Added: Sherco Solar 1-Becker, MN, 63 units Solar 2024 223
(a) Summer 2024 net dependable capacity.
−Removed: Wind is presented as net maximum capacity.
−Removed: (b) Retired on Dec.
−Removed: (c) Based on NSP-Minnesota’s ownership of 59%.
−Removed: (d) RDF is made from municipal solid waste.
−Removed: (e) Net maximum capacity is attainable only when wind conditions are sufficiently available.
+Added: Wind and solar is presented as net maximum capacity.
+Added: (b) Based on NSP-Minnesota’s ownership of 59%.
+Added: (c) RDF is made from municipal solid waste.
+Added: (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.
−Removed: 31, 2023, NSP-Minnesota’s wind facilities had a weighted-average capacity factors of 43%.
−Removed: (f) Repowered in 2023.
−Removed: (g) Purchased in 2023.
+Added: 31, 2024, NSP-Minnesota’s wind facilities had a weighted-average capacity factor of 46%.
NSP-Wisconsin
5 unchanged sentences
French Island-La Crosse, WI, 2 Units Oil 1974 119
−Removed: Wheaton-Eau Claire, WI, 5 Units Natural Gas/Oil 1973 240
+Added: Wheaton-Eau Claire, WI, 4 Units Natural Gas/Oil 1973 189 (c)
Various locations, 62 Units Hydro Various 135
1 unchanged sentence
(b) RDF is made from municipal solid waste.
+Added: (c) Retired unit in 2024.
Station, Location and Unit at Dec.
12 unchanged sentences
Vrain-Platteville, CO, 6 Units Natural Gas 1972 - 2009 1,022
−Removed: Manchief, CO, 2 Units Natural Gas 2000 250
+Added: Manchief-Brush, CO, 2 Units Natural Gas 2000 250
Rocky Mountain-Keenesburg, CO, 3 Units Natural Gas 2004 592
+Added: Valmont-Boulder, CO, 3 units Natural Gas 1973 - 2001 119
Various locations, 5 Units Natural Gas Various 128
12 unchanged sentences
For the year ended Dec.
−Removed: 31, 2023, PSCo’s wind facilities had a weighted-average capacity factors of 43%.
+Added: 31, 2024, PSCo’s wind facilities had a weighted-average capacity factor of 44%.
Station, Location and Unit at Dec.
Fuel Installed MW (a)
−Removed: Cunningham-Hobbs, NM, 1 Unit Natural Gas 1957 - 1965 183 (b)
−Removed: Harrington-Amarillo, TX, 3 Units Coal 1976 - 1980 1,018
+Added: Cunningham-Hobbs, NM, 1 Unit Natural Gas 1957 - 1965 183
+Added: Harrington-Amarillo, TX 1 Unit Natural Gas 2024 339 (b)
+Added: Harrington-Amarillo, TX 2 Units Coal 1976 - 1980 679 (b)
Jones-Lubbock, TX, 2 Units Natural Gas 1971 - 1974 486
1 unchanged sentence
Nichols-Amarillo, TX, 3 Units Natural Gas 1960 - 1968 457
−Removed: Plant X-Earth, TX, 1 Unit Natural Gas 1952 - 1964 190 (b)
+Added: Plant X-Earth, TX, 1 Unit Natural Gas 1952 - 1964 190
Tolk-Muleshoe, TX, 2 Units Coal 1982 - 1985 1,067
7 unchanged sentences
Wind is presented as net maximum capacity.
−Removed: (b) Retired unit(s) in 2023.
+Added: (b) Harrington coal plant units 1-3 were retired in December 2024.
+Added: Unit 2 was repowered to natural gas in the fourth quarter of 2024.
+Added: 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.
1 unchanged sentence
For the year ended Dec.
−Removed: 31, 2023 SPS’ wind facilities had a weighted-average capacity factors of 48%.
−Removed: Electric utility overhead and underground transmis sion and distribution lines at Dec.
+Added: 31, 2024 SPS’ wind facilities had a weighted-average capacity factor of 50%.
+Added: Electric utility overhead and unde rground transmis sion and distribution lines at Dec.
Conductor Miles NSP-Minnesota NSP-Wisconsin PSCo SPS
17 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.