v3.25.2
PROPERTY, PLANT AND EQUIPMENT AND ACCUMULATED DEPRECIATION (Tables)
6 Months Ended
Jun. 30, 2025
Property, Plant and Equipment [Abstract]  
Summary of Property, Plant, and Equipment
The following tables summarize property, plant and equipment by asset category:
EversourceAs of June 30, 2025As of December 31, 2024
(Millions of Dollars)
Distribution - Electric$21,785.5 $21,144.1 
Distribution - Natural Gas9,210.4 8,922.2 
Transmission - Electric16,569.5 16,130.9 
Solar 206.3 201.0 
Utility47,771.7 46,398.2 
Other (1)
2,390.5 2,254.1 
Property, Plant and Equipment, Gross50,162.2 48,652.3 
Less:  Accumulated Depreciation  
Utility(9,926.9)(9,636.5)
Other(1,144.2)(1,044.1)
Total Accumulated Depreciation(11,071.1)(10,680.6)
Property, Plant and Equipment, Net39,091.1 37,971.7 
Construction Work in Progress3,212.3 3,014.9 
Total Property, Plant and Equipment, Net$42,303.4 $40,986.6 
 As of June 30, 2025As of December 31, 2024
(Millions of Dollars)CL&PNSTAR
Electric
PSNHCL&PNSTAR
Electric
PSNH
Distribution - Electric$8,653.1 $10,104.5 $3,068.2 $8,437.9 $9,782.3 $2,964.2 
Transmission - Electric7,062.7 6,536.5 2,971.9 6,937.7 6,375.2 2,819.6 
Solar— 206.3 — — 201.0 — 
Property, Plant and Equipment, Gross
15,715.8 16,847.3 6,040.1 15,375.6 16,358.5 5,783.8 
Less:  Accumulated Depreciation
(3,011.7)(3,891.0)(1,054.9)(2,928.0)(3,782.0)(1,032.3)
Property, Plant and Equipment, Net
12,704.1 12,956.3 4,985.2 12,447.6 12,576.5 4,751.5 
Construction Work in Progress
561.9 1,682.5 321.8 554.6 1,461.3 338.4 
Total Property, Plant and Equipment, Net
$13,266.0 $14,638.8 $5,307.0 $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.