Jointly Owned Facilities (Tables)

12 Months Ended

Dec. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Jointly Owned Utility Plants

At December 31, 2022, our interests in jointly-owned generating facilities and transmission systems were (in thousands):

	Ownership Interest			Plant in Service		Construction Work in Progress		Less Accumulated Depreciation			Plant Net of Accumulated Depreciation
Wyodak Plant (a)		20	%	$	121,769	$	93	$	(70,884	)	$	50,978
Transmission Tie		35	%	$	24,482	$	300	$	(7,375	)	$	17,407
Wygen III (b)		52	%	$	143,818	$	1,051	$	(29,634	)	$	115,235
Wygen I (c)		76.5	%	$	114,811	$	1,579	$	(56,553	)	$	59,837