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The capacity, in megawatts, of a generation unit.

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Acquisitions - Jayhawk (Details) $ in Millions	1 Months Ended
Acquisitions - Jayhawk (Details) $ in Millions	Feb. 28, 2021 USD ($) MW	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Asset Acquisition - Allocation of Purchase Price to Assets acquired, Liabilities assumed, less Noncontrolling Interest
Net property, plant, and equipment		$ 26,982.4	$ 25,707.4
Long-term Debt		(13,563.4)	$ (12,450.5)
Jayhawk
Asset Acquisition
Capacity of generation unit \| MW	190
Duration of offtake agreement for the sale of energy produced	10 years
Number of years will receive tax benefits	10 years
Jayhawk \| WECI
Asset Acquisition
Ownership interest in generating facility acquired	90.00%
Total purchase price	$ 119.9
Additional capital expenditures		147.4
Current project investment		$ 267.3
Percentage of tax benefits entitled to	99.00%
Asset Acquisition - Allocation of Purchase Price to Assets acquired, Liabilities assumed, less Noncontrolling Interest
Net property, plant, and equipment	$ 145.3
Long-term liabilities	(11.8)
Long-term Debt	(7.3)
Noncontrolling interest	(6.3)
Total purchase price	$ 119.9