REGULATORY ACCOUNTING (Tables)

12 Months Ended

Dec. 31, 2022

Regulated Operations [Abstract]

Components of Regulatory Assets

The components of regulatory assets were as follows:

	As of December 31,
	2022								2021
(Millions of Dollars)	Eversource		CL&P		NSTAR Electric		PSNH		Eversource		CL&P		NSTAR Electric		PSNH
Benefit Costs	$	921.7	$	156.7	$	299.5	$	56.6	$	1,481.0	$	272.4	$	395.5	$	118.9
Storm Costs, Net	1,379.1		799.3		484.4		95.4		1,102.7		695.6		341.3		65.8
Regulatory Tracking Mechanisms	1,075.3		216.8		391.5		73.7		1,050.5		333.6		376.6		85.4
Income Taxes, Net	853.3		491.1		115.6		16.0		790.7		470.5		112.6		17.5
Securitized Stranded Costs	435.7		—		—		435.7		478.9		—		—		478.9
Goodwill-related	281.0		—		241.2		—		297.8		—		255.7		—
Derivative Liabilities	181.8		181.8		—		—		249.2		249.2		—		—
Asset Retirement Obligations	127.9		35.9		68.2		4.4		115.0		33.6		59.8		4.1
Other Regulatory Assets	322.5		26.2		114.0		14.4		150.0		29.9		37.7		15.8
Total Regulatory Assets	5,578.3		1,907.8		1,714.4		696.2		5,715.8		2,084.8		1,579.2		786.4
Less:  Current Portion	1,335.5		314.1		492.8		102.2		1,129.1		371.6		444.0		107.2
Total Long-Term Regulatory Assets	$	4,242.8	$	1,593.7	$	1,221.6	$	594.0	$	4,586.7	$	1,713.2	$	1,135.2	$	679.2

Components of Regulatory Liabilities

The components of regulatory liabilities were as follows:

	As of December 31,
	2022								2021
(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	$	2,619.3	$	983.6	$	944.3	$	348.6	$	2,685.2	$	996.1	$	984.5	$	359.2
Cost of Removal	670.6		130.8		405.3		14.7		649.6		100.1		381.0		17.2
Regulatory Tracking Mechanisms	890.8		361.0		336.1		155.0		448.4		182.0		185.1		107.0
Deferred Portion of Non-Service Income    Components of Pension, SERP and PBOP	270.9		34.5		139.7		28.8		148.3		12.0		90.7		14.9
Benefit Costs	55.4		0.7		31.4		—		133.5		—		107.4		—
AFUDC - Transmission	98.2		48.2		50.0		—		81.0		43.2		37.8		—
CL&P Settlement Agreement and Storm    Performance Penalty	—		—		—		—		81.3		81.3		—		—
Other Regulatory Liabilities	215.9		40.6		14.5		6.5		241.4		45.1		0.8		3.3
Total Regulatory Liabilities	4,821.1		1,599.4		1,921.3		553.6		4,468.7		1,459.8		1,787.3		501.6
Less:  Current Portion	890.8		336.0		373.2		162.0		602.4		266.5		228.2		120.2
Total Long-Term Regulatory Liabilities	$	3,930.3	$	1,263.4	$	1,548.1	$	391.6	$	3,866.3	$	1,193.3	$	1,559.1	$	381.4