Utility Plant and Nonutility Property

12 Months Ended

Dec. 31, 2022

Utility Plant And Non Utility Property [Abstract]

Utility Plant and Nonutility Property

15. UTILITY PLANT AND NONUTILITY PROPERTY

Major classes of utility plant and other property and their respective balances at December 31, 2022 and 2021 were as follows:

At December 31,	2022		2021
(millions)
Gross utility plant:
Generation	$	6,108	$	6,053
Transmission		2,145		2,037
Distribution		5,472		5,191
Storage		76		76
General and other		630		601
Intangible		257		242
Construction work in progress		541		481
Nuclear fuel		550		603
Total gross utility plant	$	15,779	$	15,284
Gross nonutility property	$	21	$	44

Jointly Owned Utility Plant

DESC jointly owns and is the operator of Summer. Each joint owner provides its own financing and shares the direct expenses and generation output in proportion to its ownership. DESC’s share of the direct expenses of Summer is included in the corresponding operating expenses on its income statement. The units associated with the NND Project, net of impairment charges, have been

reclassified from construction work in progress to a regulatory asset as a result of the decision to stop their construction. See additional discussion at Note 3.

At December 31,	2022			2021
	Summer Unit 1			Summer Unit 1
Percent owned	66.7%			66.7%
Plant in service	$	1.6	billion	$	1.6	billion
Accumulated depreciation	$	751	million	$	725	million
Construction work in progress	$	87	million	$	76	million

Included within other receivables on the balance sheet were amounts due to DESC from Santee Cooper for its share of direct expenses. These amounts totaled $21 million at December 31, 2022 and $32 million at December 31, 2021.