REGULATORY ACCOUNTING (Tables)

6 Months Ended

Jun. 30, 2026

Regulated Operations [Abstract]

Schedule of Components of Regulatory Assets

The components of regulatory assets were as follows:


			As of June 30, 2026																								As of December 31, 2025
(Millions of Dollars)			Eversource						CL&P						NSTAR Electric						PSNH						Eversource						CL&P						NSTAR Electric						PSNH
Storm Costs, Net			$	2,044.2					$	996.9					$	575.9					$	471.4					$	1,959.3					$	991.3					$	499.6					$	468.4
Regulatory Tracking Mechanisms			1,516.5						192.7						792.9						112.8						1,573.8						206.5						705.6						93.2
Benefit Costs			1,025.7						185.1						308.3						64.7						992.8						173.7						300.0						61.7
Income Taxes, Net			866.2						551.4						170.9						22.1						1,044.5						546.1						161.5						23.3
Derivative Contracts			390.3						—						390.3						—						753.2						0.1						753.1						—
Securitized Stranded Costs			284.5						—						—						284.5						306.1						—						—						306.1
Cost of Removal			268.5						—						8.0						—						262.5						—						8.1						—
Goodwill-related			222.0						—						190.6						—						230.4						—						197.8						—
Asset Retirement Obligations			169.2						45.7						87.6						5.6						162.8						44.2						84.6						5.4
Environmental Remediation Costs			134.1						—						—						—						136.1						—						—						—
EGMA Acquisition and Integration Costs			82.3						—						—						—						82.3						—						—						—
Other Regulatory Assets			142.7						19.2						74.9						2.5						189.9						19.5						92.0						3.0
Total Regulatory Assets			7,146.2						1,991.0						2,599.4						963.6						7,693.7						1,981.4						2,802.3						961.1
Less: Current Portion			1,905.2						254.5						1,056.1						142.2						1,975.1						265.2						978.8						119.9
Total Long-Term Regulatory Assets			$	5,241.0					$	1,736.5					$	1,543.3					$	821.4					$	5,718.6					$	1,716.2					$	1,823.5					$	841.2

Schedule of Components of Regulatory Liabilities

The components of regulatory liabilities were as follows:


			As of June 30, 2026																								As of December 31, 2025
(Millions of Dollars)			Eversource						CL&P						NSTAR Electric						PSNH						Eversource						CL&P						NSTAR Electric						PSNH
EDIT due to Tax Cuts and Jobs Act of 2017			$	2,343.9					$	924.0					$	834.6					$	314.8					$	2,423.4					$	933.3					$	847.9					$	319.8
Regulatory Tracking Mechanisms			1,560.0						673.0						615.7						141.3						1,186.6						457.3						535.2						111.2
Cost of Removal			877.8						310.3						504.9						62.6						867.1						275.1						479.4						45.5
Deferred Portion of Non-Service Income Components of Pension, SERP and PBOP			557.8						79.4						276.4						53.2						509.4						72.8						252.5						48.5
AFUDC - Transmission			196.2						78.0						118.2						—						179.4						72.0						107.4						—
Derivative Contract			115.1						—						115.1						—						91.0						—						91.0						—
Benefit Costs			74.6						10.4						14.4						7.2						80.4						8.8						24.5						6.8
Other Regulatory Liabilities			202.1						58.3						24.3						4.0						200.8						43.3						15.0						4.0
Total Regulatory Liabilities			5,927.5						2,133.4						2,503.6						583.1						5,538.1						1,862.6						2,352.9						535.8
Less: Current Portion			1,696.4						653.7						775.3						150.7						1,264.6						417.5						650.8						118.4
Total Long-Term Regulatory Liabilities			$	4,231.1					$	1,479.7					$	1,728.3					$	432.4					$	4,273.5					$	1,445.1					$	1,702.1					$	417.4