Property, Plant and Equipment

12 Months Ended

Dec. 31, 2024

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

Property, plant and equipment at December 31 was as follows:

	2024		2023		Weighted Average Depreciable Life in Years
	(Dollars in thousands, where applicable)
Electric:
Generation	$	1,014,906	$	939,474	49
Distribution	546,121		521,215		47
Transmission	662,466		639,999		65
CWIP	81,316		115,103		0
Other	176,007		153,248		15
Natural gas distribution:
Distribution	2,955,435		2,771,540		53
Transmission	146,710		115,057		56
Storage	43,700		42,654		37
General	229,034		215,572		13
CWIP	74,207		70,373		0
Other	282,007		246,991		15
Pipeline:
Transmission	1,173,259		1,035,995		46
Storage	61,369		57,160		53
CWIP	29,629		57,038		0
Other	73,749		68,194		17
Other:
Land and other	4,148		31,654		7
Less accumulated depreciation and amortization	2,209,771		2,076,375
Net property, plant and equipment	$	5,344,292	$	5,004,892