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Jointly Owned Utility Facilities (Details) $ in Millions | Dec. 31, 2022 USD ($) MW
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Elm Road Generating Station Units 1 and 2 | We Power |
Jointly owned utility facilities |
Joint plant ownership percentage | 83.34%
Share of capacity (MW) | MW | 1,060.8
Property, plant, and equipment | $ 2,425.1
Accumulated depreciation | (505.7)
Construction work in progress | $ 64.1
Weston Unit 4 | WPS |
Jointly owned utility facilities |
Joint plant ownership percentage | 70.00%
Share of capacity (MW) | MW | 387.3
Property, plant, and equipment | $ 612.1
Accumulated depreciation | (213.0)
Construction work in progress | $ 1.2
Columbia Energy Center Units 1 and 2 | WPS |
Jointly owned utility facilities |
Joint plant ownership percentage | 27.50%
Share of capacity (MW) | MW | 311.1
Property, plant, and equipment | $ 426.1
Accumulated depreciation | (159.7)
Construction work in progress | $ 6.8
Forward Wind Energy Center | WPS |
Jointly owned utility facilities |
Joint plant ownership percentage | 44.60%
Share of capacity (MW) | MW | 61.5
Property, plant, and equipment | $ 119.3
Accumulated depreciation | (53.9)
Construction work in progress | $ 0.2
Two Creeks | WPS |
Jointly owned utility facilities |
Joint plant ownership percentage | 66.70%
Share of capacity (MW) | MW | 100.0
Property, plant, and equipment | $ 136.8
Accumulated depreciation | (9.7)
Construction work in progress | $ 0.1
Badger Hollow I | WPS |
Jointly owned utility facilities |
Joint plant ownership percentage | 66.70%
Share of capacity (MW) | MW | 100.0
Property, plant, and equipment | $ 146.2
Accumulated depreciation | (4.9)
Construction work in progress | $ 0.0
Badger Hollow II | WE |
Jointly owned utility facilities |
Joint plant ownership percentage | 66.70%
Share of capacity (MW) | MW | 100
Construction work in progress | $ 107.5
Paris | WE and WPS |
Jointly owned utility facilities |
Joint plant ownership percentage | 90.00%
Jointly owned utility plant, proportionate ownership share of solar capacity | MW | 180
Jointly owned utility plant, proportionate ownership share of battery storage | MW | 99
Construction work in progress | $ 207.6
Darien | WE and WPS |
Jointly owned utility facilities |
Joint plant ownership percentage | 90.00%
Jointly owned utility plant, proportionate ownership share of solar capacity | MW | 225
Jointly owned utility plant, proportionate ownership share of battery storage | MW | 68
Construction work in progress | $ 9.4

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