PROPERTY, PLANT AND EQUIPMENT AND ACCUMULATED DEPRECIATION (Tables)

6 Months Ended

Jun. 30, 2021

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 June 30, 2021		As of December 31, 2020
(Millions of Dollars)
Distribution - Electric	$	17,104.8	$	16,703.2
Distribution - Natural Gas	6,227.8		6,111.2
Transmission - Electric	12,296.8		11,954.0
Distribution - Water	1,772.7		1,743.1
Solar	200.4		201.5
Utility	37,602.5		36,713.0
Other (1)	1,386.9		1,269.0
Property, Plant and Equipment, Gross	38,989.4		37,982.0
Less:  Accumulated Depreciation
Utility	(8,756.6)		(8,476.3)
Other	(525.8)		(477.6)
Total Accumulated Depreciation	(9,282.4)		(8,953.9)
Property, Plant and Equipment, Net	29,707.0		29,028.1
Construction Work in Progress	2,171.6		1,854.4
Total Property, Plant and Equipment, Net	$	31,878.6	$	30,882.5

	As of June 30, 2021						As of December 31, 2020
(Millions of Dollars)	CL&P		NSTAR Electric		PSNH		CL&P		NSTAR Electric		PSNH
Distribution - Electric	$	6,989.4	$	7,716.5	$	2,439.2	$	6,820.7	$	7,544.4	$	2,378.4
Transmission - Electric	5,653.4		4,866.5		1,778.6		5,512.0		4,701.3		1,742.4
Solar	—		200.4		—		—		201.5		—
Property, Plant and Equipment, Gross	12,642.8		12,783.4		4,217.8		12,332.7		12,447.2		4,120.8
Less:  Accumulated Depreciation	(2,559.4)		(3,182.8)		(879.9)		(2,475.4)		(3,074.1)		(848.9)
Property, Plant and Equipment, Net	10,083.4		9,600.6		3,337.9		9,857.3		9,373.1		3,271.9
Construction Work in Progress	395.8		836.6		129.9		377.3		750.0		102.4
Total Property, Plant and Equipment, Net	$	10,479.2	$	10,437.2	$	3,467.8	$	10,234.6	$	10,123.1	$	3,374.3

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