Property Plant and Equipment Property Plant and Equipment

12 Months Ended

Dec. 31, 2024

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment Disclosure

Major classes of property, plant and equipment

(Millions of Dollars)	Dec. 31, 2024		Dec. 31, 2023
Property, plant and equipment, net
Electric plant	$	11,443	$	10,752
Plant to be retired (a)	182		248
CWIP	518		226
Total property, plant and equipment	12,143		11,226
Less accumulated depreciation	(2,892)		(2,690)
Property, plant and equipment, net	$	9,251	$	8,536

(a)Amounts include Tolk Unit 1 and 2. The Dec. 31, 2023 amounts also include coal generation assets at Harrington. The coal assets were retired in 2024 and the conversion to natural gas is in process. Amounts are reported net of accumulated depreciation.