REGULATORY ACCOUNTING (Tables)

9 Months Ended

Sep. 30, 2021

Regulated Operations [Abstract]

Components of Regulatory Assets

The components of regulatory assets were as follows:

	As of September 30, 2021								As of December 31, 2020
(Millions of Dollars)	Eversource		CL&P		NSTAR Electric		PSNH		Eversource		CL&P		NSTAR Electric		PSNH
Benefit Costs	$	2,566.1	$	540.2	$	638.4	$	249.7	$	2,794.2	$	632.3	$	690.0	$	267.6
Income Taxes, Net	756.4		458.1		113.8		18.7		747.1		458.9		110.4		15.2
Securitized Stranded Costs	489.7		—		—		489.7		522.1		—		—		522.1
Storm Restoration Costs, Net	944.2		674.2		198.1		71.9		765.6		515.1		186.4		64.1
Regulatory Tracker Mechanisms	883.0		304.6		320.0		76.8		850.5		246.6		332.2		95.3
Derivative Liabilities	265.3		265.3		—		—		296.3		293.1		—		—
Goodwill-related	302.0		—		259.3		—		314.7		—		270.2		—
Asset Retirement Obligations	121.6		33.7		57.8		4.0		118.4		32.1		58.6		3.9
Other Regulatory Assets	146.9		31.0		48.7		16.9		161.0		33.7		56.1		20.9
Total Regulatory Assets	6,475.2		2,307.1		1,636.1		927.7		6,569.9		2,211.8		1,703.9		989.1
Less:  Current Portion	1,016.3		325.3		388.4		97.9		1,076.6		345.6		399.9		115.9
Total Long-Term Regulatory Assets	$	5,458.9	$	1,981.8	$	1,247.7	$	829.8	$	5,493.3	$	1,866.2	$	1,304.0	$	873.2

Components of Regulatory Liabilities

The components of regulatory liabilities were as follows:

	As of September 30, 2021								As of December 31, 2020
(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	$	2,737.1	$	1,001.5	$	1,025.6	$	363.9	$	2,778.6	$	1,010.7	$	1,044.0	$	371.5
Cost of Removal	676.7		117.0		384.1		19.0		624.8		98.4		363.6		12.9
Benefit Costs	65.9		—		56.5		—		83.6		—		72.5		—
Regulatory Tracker Mechanisms	484.5		208.9		180.6		87.5		366.5		148.9		139.7		47.8
AFUDC - Transmission	79.6		43.6		36.0		—		76.8		44.6		32.2		—
CL&P Settlement Agreement and Storm   Performance Penalty	103.4		103.4		—		—		—		—		—		—
Other Regulatory Liabilities	373.3		50.4		84.6		15.8		309.9		39.5		63.2		9.8
Total Regulatory Liabilities	4,520.5		1,524.8		1,767.4		486.2		4,240.2		1,342.1		1,715.2		442.0
Less:  Current Portion	612.9		311.3		205.8		96.8		389.4		137.2		164.8		58.8
Total Long-Term Regulatory Liabilities	$	3,907.6	$	1,213.5	$	1,561.6	$	389.4	$	3,850.8	$	1,204.9	$	1,550.4	$	383.2