SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

3 Months Ended

Mar. 31, 2023

Accounting Policies [Abstract]

Allowance for Uncollectible Accounts

The activity in the allowance for uncollectible accounts by portfolio segment as of March 31st is as follows:

	Eversource						CL&P						NSTAR Electric						PSNH
(Millions of Dollars)	Hardship Accounts		Retail (Non-Hardship), Wholesale, and Other		Total Allowance		Hardship Accounts		Retail (Non-Hardship), Wholesale, and Other		Total Allowance		Hardship Accounts		Retail (Non-Hardship), Wholesale, and Other		Total Allowance		Total Allowance
Three Months Ended 2023
Beginning Balance	$	284.4	$	201.9	$	486.3	$	188.9	$	36.4	$	225.3	$	43.7	$	51.3	$	95.0	$	29.2
Uncollectible Expense	—		22.8		22.8		—		3.9		3.9		—		4.7		4.7		5.1
Uncollectible Costs Deferred (1)	43.7		14.3		58.0		34.3		2.7		37.0		(1.3)		5.4		4.1		1.2
Write-Offs	(9.7)		(26.3)		(36.0)		(7.3)		(7.0)		(14.3)		(0.4)		(10.3)		(10.7)		(2.2)
Recoveries Collected	0.3		3.7		4.0		0.3		1.2		1.5		—		1.5		1.5		0.2
Ending Balance	$	318.7	$	216.4	$	535.1	$	216.2	$	37.2	$	253.4	$	42.0	$	52.6	$	94.6	$	33.5

Three Months Ended 2022
Beginning Balance	$	226.1	$	191.3	$	417.4	$	144.6	$	36.7	$	181.3	$	43.3	$	53.7	$	97.0	$	24.3
Uncollectible Expense	—		17.1		17.1		—		3.8		3.8		—		4.7		4.7		2.5
Uncollectible Costs Deferred (1)	0.9		14.8		15.7		(4.0)		(2.1)		(6.1)		(3.3)		5.4		2.1		1.0
Write-Offs	(2.3)		(22.0)		(24.3)		(1.1)		(0.5)		(1.6)		(0.3)		(10.6)		(10.9)		(1.8)
Recoveries Collected	0.8		5.5		6.3		0.6		2.5		3.1		—		1.9		1.9		0.2
Ending Balance	$	225.5	$	206.7	$	432.2	$	140.1	$	40.4	$	180.5	$	39.7	$	55.1	$	94.8	$	26.2

(1) These expected credit losses are deferred as regulatory costs on the balance sheets, as these amounts are ultimately recovered in rates. Amounts include uncollectible costs for hardship accounts and other customer receivables, including uncollectible amounts related to uncollectible energy supply costs and COVID-19. The increase in the allowance for uncollectible hardship accounts in 2023 at Eversource and CL&P primarily relates to increased customer enrollment in disconnection prevention programs in Connecticut.

Components of Other Income, Net

The components of Other Income, Net on the statements of income were as follows:

	For the Three Months Ended
	March 31, 2023								March 31, 2022
(Millions of Dollars)	Eversource		CL&P		NSTAR Electric		PSNH		Eversource		CL&P		NSTAR Electric		PSNH
Pension, SERP and PBOP Non-Service    Income Components, Net of Deferred Portion	$	34.8	$	9.5	$	14.7	$	4.2	$	54.3	$	15.9	$	21.0	$	6.6
AFUDC Equity	15.5		4.1		9.5		0.7		9.9		2.8		4.9		0.4
Equity in Earnings of Unconsolidated Affiliates	3.8		—		0.1		—		0.4		—		—		—
Investment (Loss)/Income	(1.7)		(0.6)		(0.5)		(0.1)		(0.2)		(0.4)		(0.3)		0.2
Interest Income	23.1		1.9		16.0		0.9		6.7		1.3		3.5		0.3
Other	13.5		—		0.1		—		0.5		—		0.1		—
Total Other Income, Net	$	89.0	$	14.9	$	39.9	$	5.7	$	71.6	$	19.6	$	29.2	$	7.5

Investments in Unconsolidated Affiliates

Eversource's investments included the following:

			Investment Balance
(Millions of Dollars)	Ownership Interest		As of March 31, 2023		As of December 31, 2022
Offshore Wind Business - North East Offshore	50	%	$	2,159.2	$	1,947.1
Natural Gas Pipeline - Algonquin Gas Transmission, LLC	15	%	117.5		118.8
Renewable Energy Investment Fund	90	%	—		84.1
Other	various		26.2		26.1
Total Investments in Unconsolidated Affiliates			$	2,302.9	$	2,176.1

Other Taxes

These gross receipts taxes are recorded separately with collections in Operating Revenues and with payments in Taxes Other Than Income Taxes on the statements of income as follows:

	For the Three Months Ended
(Millions of Dollars)	March 31, 2023		March 31, 2022
Eversource	$	55.0	$	48.6
CL&P	43.1		37.8

Non-cash Investing Activities

Non-cash investing activities include plant additions included in Accounts Payable as follows:

(Millions of Dollars)	As of March 31, 2023		As of March 31, 2022
Eversource	$	400.8	$	385.6
CL&P	101.9		102.1
NSTAR Electric	117.4		85.8
PSNH	54.6		49.5

Reconciliation of Cash Balances to Cash and Restricted Cash

The following table reconciles cash and cash equivalents as reported on the balance sheets to the cash, cash equivalents and restricted cash balance as reported on the statements of cash flows:

	As of March 31, 2023								As of December 31, 2022
(Millions of Dollars)	Eversource		CL&P		NSTAR Electric		PSNH		Eversource		CL&P		NSTAR Electric		PSNH
Cash and Cash Equivalents as reported on the Balance Sheets	$	36.0	$	9.3	$	0.6	$	0.1	$	374.6	$	11.3	$	327.7	$	0.1
Restricted cash included in:
Special Deposits	89.0		8.9		17.8		19.5		102.2		8.8		17.5		33.1
Marketable Securities	17.9		0.2		—		0.2		25.4		0.2		0.1		0.4
Other Long-Term Assets	19.9		—		—		3.2		19.6		—		—		3.2
Cash, Cash Equivalents and Restricted Cash as reported on the Statements of Cash Flows	$	162.8	$	18.4	$	18.4	$	23.0	$	521.8	$	20.3	$	345.3	$	36.8