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LEASES (Tables)

12 Months Ended

Dec. 31, 2024

Leases [Abstract]

Components of Lease Cost

The components of lease cost, prior to amounts capitalized, are as follows:

Eversource			For the Years Ended December 31,
(Millions of Dollars)			2024						2023						2022
Finance Lease Cost:
Amortization of Right-of-use-Assets			$	6.4					$	4.8					$	8.3
Interest on Lease Liabilities			2.7						2.0						2.0
Total Finance Lease Cost			9.1						6.8						10.3
Operating Lease Cost			15.2						11.4						11.6
Variable Lease Cost			18.3						69.2						78.1
Total Lease Cost			$	42.6					$	87.4					100.0

			For the Years Ended December 31,
			2024																		2023																		2022
(Millions of Dollars)			CL&P						NSTAR Electric						PSNH						CL&P						NSTAR Electric						PSNH						CL&P						NSTAR Electric						PSNH
Finance Lease Cost:
Amortization of Right-of-use-Assets			$	1.7					$	0.2					$	—					$	—					$	0.2					$	—					$	—					$	0.2					$	0.1
Interest on Lease Liabilities			0.8						0.6						—						—						0.6						—						—						0.6						—
Total Finance Lease Cost			2.5						0.8						—						—						0.8						—						—						0.8						0.1
Operating Lease Cost			2.6						5.3						1.8						0.7						3.0						0.4						0.3						2.3						0.1
Variable Lease Cost			18.9						—						(0.6)						21.9						—						47.3						25.6						—						52.5
Total Lease Cost			$	24.0					$	6.1					$	1.2					$	22.6					$	3.8					$	47.7					$	25.9					$	3.1					$	52.7

Supplemental Balance Sheet Information Related to Leases

Supplemental balance sheet information related to leases is as follows:

									As of December 31, 2024																								As of December 31, 2023
(Millions of Dollars)			Balance Sheet Classification						Eversource						CL&P						NSTAR Electric						PSNH						Eversource						CL&P						NSTAR Electric						PSNH
Operating Leases:
Right-of-use-Assets, Net			Other Long-Term Assets						$	56.1					$	7.7					$	29.4					$	3.3					$	53.5					$	2.2					$	27.7					$	4.7
Operating Lease Liabilities
Current Portion			Other Current Liabilities						$	10.4					$	2.2					$	3.7					$	1.7					$	9.5					$	0.8					$	2.2					$	1.5
Long-Term			Other Long-Term Liabilities						45.7						5.5						25.7						1.6						44.0						1.4						25.5						3.2
Total Operating Lease Liabilities									$	56.1					$	7.7					$	29.4					$	3.3					$	53.5					$	2.2					$	27.7					$	4.7
Finance Leases:
Right-of-use-Assets, Net			Property, Plant and Equipment, Net						$	61.9					$	16.6					$	2.8					$	—					$	68.6					$	18.3					$	3.0					$	—
Finance Lease Liabilities
Current Portion			Other Current Liabilities						$	5.6					$	1.5					$	—					$	—					$	5.4					$	1.4					$	—					$	—
Long-Term			Other Long-Term Liabilities						62.1						15.6						4.9						—						67.3						16.9						4.9						—
Total Finance Lease Liabilities									$	67.7					$	17.1					$	4.9					$	—					$	72.7					$	18.3					$	4.9					$	—

Other Information Related to Leases

Other information related to leases is as follows:

			As of December 31,
			2024																								2023
			Eversource						CL&P						NSTAR Electric						PSNH						Eversource						CL&P						NSTAR Electric						PSNH
Weighted-Average Remaining Lease Term (Years):
Operating Leases			9						4						12						2						9						4						13						3
Finance Leases			12						8						17						—						13						9						18						—
Weighted-Average Discount Rate (Percentage):
Operating Leases			4.1		%				5.2		%				4.2		%				5.2		%				4.0		%				5.2		%				4.2		%				5.2		%
Finance Leases			3.3		%				5.3		%				2.9		%				—		%				3.3		%				5.3		%				2.9		%				—		%

(Millions of Dollars)			Eversource						CL&P						NSTAR Electric						PSNH
For the Year Ended December 31, 2024
Cash Paid for Amounts Included in the Measurement of Lease Liabilities:
Operating Cash Flows from Operating Leases			$	14.5					$	2.5					$	4.9					$	1.8
Operating Cash Flows from Finance Leases			2.6						0.7						0.7						—
Financing Cash Flows from Finance Leases			5.2						1.2						—						—
Supplemental Non-Cash Information on Lease Liabilities:
Right-of-use-Assets Obtained in Exchange for New Operating Lease Liabilities			15.3						7.8						5.7						0.3
Right-of-use-Assets Obtained in Exchange for New Finance Lease Liabilities			0.3						—						—						—

(Millions of Dollars)			Eversource						CL&P						NSTAR Electric						PSNH
For the Year Ended December 31, 2023
Cash Paid for Amounts Included in the Measurement of Lease Liabilities:
Operating Cash Flows from Operating Leases			$	10.5					$	0.7					$	2.5					$	0.4
Operating Cash Flows from Finance Leases			2.0						—						0.6						—
Financing Cash Flows from Finance Leases			3.9						—						—						—
Supplemental Non-Cash Information on Lease Liabilities:
Right-of-use-Assets Obtained in Exchange for New Operating Lease Liabilities			12.8						0.6						7.0						5.0
Right-of-use-Assets Obtained in Exchange for New Finance Lease Liabilities			18.5						18.3						—						—

(Millions of Dollars)			Eversource						CL&P						NSTAR Electric						PSNH
For the Year Ended December 31, 2022
Cash Paid for Amounts Included in the Measurement of Lease Liabilities:
Operating Cash Flows from Operating Leases			$	11.3					$	0.3					$	2.1					$	0.1
Operating Cash Flows from Finance Leases			2.0						—						0.6						—
Financing Cash Flows from Finance Leases			3.9						—						—						0.1
Supplemental Non-Cash Information on Lease Liabilities:
Right-of-use-Assets Obtained in Exchange for New Operating Lease Liabilities			18.9						2.4						—						—
Right-of-use-Assets Obtained in Exchange for New Finance Lease Liabilities			3.5						—						—						—

Future Minimum Lease Payments under Long-Term Finance Leases

Future minimum lease payments, excluding variable costs, under long-term leases, as of December 31, 2024 are as follows:

			Operating Leases																					Finance Leases
(Millions of Dollars)			Eversource						CL&P						NSTAR Electric			PSNH						Eversource						CL&P			NSTAR Electric
Year Ending December 31,
2025			$	12.5					$	2.6					$	4.9		$	1.9					$	8.3					$	2.3		$	0.7
2026			11.0						2.3						4.9			1.5						7.9						2.4			0.7
2027			7.0						1.8						2.9			0.1						7.9						2.5			0.7
2028			6.6						1.8						2.6			—						7.3						2.6			0.7
2029			4.5						—						2.5			—						7.3						2.6			0.7
Thereafter			26.2						—						22.2			—						50.5						8.9			10.2
Future lease payments			67.8						8.5						40.0			3.5						89.2						21.3			13.7
Less amount representing interest			11.7						0.8						10.6			0.2						21.5						4.2			8.8
Present value of future minimum lease payments			$	56.1					$	7.7					$	29.4		$	3.3					$	67.7					$	17.1		$	4.9

Future Minimum Lease Payments under Long-Term Operating Leases

Future minimum lease payments, excluding variable costs, under long-term leases, as of December 31, 2024 are as follows:

			Operating Leases																					Finance Leases
(Millions of Dollars)			Eversource						CL&P						NSTAR Electric			PSNH						Eversource						CL&P			NSTAR Electric
Year Ending December 31,
2025			$	12.5					$	2.6					$	4.9		$	1.9					$	8.3					$	2.3		$	0.7
2026			11.0						2.3						4.9			1.5						7.9						2.4			0.7
2027			7.0						1.8						2.9			0.1						7.9						2.5			0.7
2028			6.6						1.8						2.6			—						7.3						2.6			0.7
2029			4.5						—						2.5			—						7.3						2.6			0.7
Thereafter			26.2						—						22.2			—						50.5						8.9			10.2
Future lease payments			67.8						8.5						40.0			3.5						89.2						21.3			13.7
Less amount representing interest			11.7						0.8						10.6			0.2						21.5						4.2			8.8
Present value of future minimum lease payments			$	56.1					$	7.7					$	29.4		$	3.3					$	67.7					$	17.1		$	4.9

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- Definition

Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

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Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

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Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

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