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PROPERTY, PLANT AND EQUIPMENT AND ACCUMULATED DEPRECIATION
 3 Months Ended
Mar. 31, 2022
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT AND ACCUMULATED DEPRECIATION PROPERTY, PLANT AND EQUIPMENT AND ACCUMULATED DEPRECIATION
The following tables summarize property, plant and equipment by asset category:
EversourceAs of March 31, 2022As of December 31, 2021
(Millions of Dollars)
Distribution - Electric$17,809.0 $17,679.1 
Distribution - Natural Gas6,713.7 6,694.8 
Transmission - Electric13,011.0 12,882.4 
Distribution - Water1,924.9 1,900.9 
Solar 200.9 200.9 
Utility39,659.5 39,358.1 
Other (1)
1,509.6 1,469.5 
Property, Plant and Equipment, Gross41,169.1 40,827.6 
Less:  Accumulated Depreciation  
Utility   (8,976.2)(8,885.2)
Other(609.8)(580.1)
Total Accumulated Depreciation(9,586.0)(9,465.3)
Property, Plant and Equipment, Net31,583.1 31,362.3 
Construction Work in Progress2,269.5 2,015.4 
Total Property, Plant and Equipment, Net$33,852.6 $33,377.7 
 As of March 31, 2022As of December 31, 2021
(Millions of Dollars)CL&PNSTAR
Electric		PSNHCL&PNSTAR
Electric		PSNH
Distribution - Electric$7,188.9 $8,151.1 $2,509.3 $7,117.6 $8,105.5 $2,496.2 
Transmission - Electric5,912.5 5,137.1 1,963.1 5,859.0 5,090.5 1,934.6 
Solar— 200.9 — — 200.9 — 
Property, Plant and Equipment, Gross
13,101.4 13,489.1 4,472.4 12,976.6 13,396.9 4,430.8 
Less:  Accumulated Depreciation
(2,592.6)(3,271.8)(912.8)(2,572.1)(3,227.3)(908.4)
Property, Plant and Equipment, Net
10,508.8 10,217.3 3,559.6 10,404.5 10,169.6 3,522.4 
Construction Work in Progress
432.2 791.6 163.0 399.0 707.0 134.1 
Total Property, Plant and Equipment, Net
$10,941.0 $11,008.9 $3,722.6 $10,803.5 $10,876.6 $3,656.5 

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