PROPERTY, PLANT AND EQUIPMENT AND ACCUMULATED DEPRECIATION (Tables)

3 Months Ended

Mar. 31, 2025

Property, Plant and Equipment [Abstract]

Summary of Property, Plant, and Equipment

The following tables summarize property, plant and equipment by asset category:


Eversource	As of March 31, 2025		As of December 31, 2024
(Millions of Dollars)
Distribution - Electric	$	21,467.7	$	21,144.1
Distribution - Natural Gas	9,131.9		8,922.2
Transmission - Electric	16,303.5		16,130.9

Solar	205.8		201.0
Utility	47,108.9		46,398.2
Other (1)	2,305.8		2,254.1
Property, Plant and Equipment, Gross	49,414.7		48,652.3
Less: Accumulated Depreciation
Utility	(9,807.5)		(9,636.5)
Other	(1,093.9)		(1,044.1)
Total Accumulated Depreciation	(10,901.4)		(10,680.6)
Property, Plant and Equipment, Net	38,513.3		37,971.7
Construction Work in Progress	3,136.8		3,014.9
Total Property, Plant and Equipment, Net	$	41,650.1	$	40,986.6


	As of March 31, 2025						As of December 31, 2024
(Millions of Dollars)	CL&P		NSTAR Electric		PSNH		CL&P		NSTAR Electric		PSNH
Distribution - Electric	$	8,564.9	$	9,930.9	$	3,012.2	$	8,437.9	$	9,782.3	$	2,964.2
Transmission - Electric	6,996.7		6,426.4		2,882.1		6,937.7		6,375.2		2,819.6
Solar	—		205.8		—		—		201.0		—
Property, Plant and Equipment, Gross	15,561.6		16,563.1		5,894.3		15,375.6		16,358.5		5,783.8
Less: Accumulated Depreciation	(2,979.9)		(3,846.7)		(1,048.1)		(2,928.0)		(3,782.0)		(1,032.3)
Property, Plant and Equipment, Net	12,581.7		12,716.4		4,846.2		12,447.6		12,576.5		4,751.5
Construction Work in Progress	557.4		1,635.8		342.2		554.6		1,461.3		338.4
Total Property, Plant and Equipment, Net	$	13,139.1	$	14,352.2	$	5,188.4	$	13,002.2	$	14,037.8	$	5,089.9

(1) These assets are primarily comprised of computer software, hardware and equipment at Eversource Service and buildings at The Rocky River Realty Company.