CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating Activities:
Net Income	$ 938,883	$ 664,655
Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities:
Depreciation	721,179	656,632
Deferred Income Taxes	156,795	73,487
Uncollectible Expense	31,101	46,417
Pension, SERP and PBOP Expense, Net	9,153	18,507
Pension and PBOP Contributions	(107,985)	(120,373)
Regulatory (Under)/Over Recoveries, Net	(29,287)	80,688
Amortization	130,687	183,760
Proceeds from DOE Spent Nuclear Fuel Litigation	0	68,840
Impairment of Northern Pass Transmission	0	239,644
Other	(69,216)	(185,625)
Changes in Current Assets and Liabilities:
Receivables and Unbilled Revenues, Net	(193,895)	(57,011)
Fuel, Materials, Supplies and REC Inventory	21,102	34,030
Taxes Receivable/Accrued, Net	89,759	53,687
Accounts Payable	(121,034)	(157,355)
Other Current Assets and Liabilities, Net	(81,033)	(105,133)
Net Cash Flows Provided by Operating Activities	1,496,209	1,494,850
Investing Activities:
Investments in Property, Plant and Equipment	(2,101,564)	(2,129,037)
Proceeds from Sales of Marketable Securities	386,712	458,322
Purchases of Marketable Securities	(391,368)	(405,095)
Proceeds from the Sale of Hingham Water System	110,536	0
Investments in Unconsolidated Affiliates, Net	(31,677)	(374,913)
Other Investing Activities	17,647	(1,126)
Net Cash Flows Used in Investing Activities	(2,009,714)	(2,451,849)
Financing Activities:
Issuance of Common Shares, Net of Issuance Costs	929,025	426,902
Cash Dividends on Common Shares	(555,655)	(495,571)
Cash Dividends on Preferred Stock	(5,639)	(5,639)
(Decrease)/Increase in Notes Payable	(1,174,870)	(197,500)
Repayment of Rate Reduction Bonds	(43,210)	(52,332)
Issuance of Long-Term Debt	2,360,000	1,475,000
Retirement of Long-Term Debt	(302,236)	(250,855)
Other Financing Activities	18,030	(450)
Net Cash Flows Provided by/(Used in) Financing Activities	1,225,445	899,555
Net Increase/(Decrease) in Cash and Restricted Cash	711,940	(57,444)
Cash, Cash Equivalents and Restricted Cash - Beginning of Period	117,063	209,324
Cash, Cash Equivalents and Restricted Cash - End of Period	829,003	151,880
The Connecticut Light and Power Company
Operating Activities:
Net Income	356,106	326,962
Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities:
Depreciation	238,735	224,095
Deferred Income Taxes	92,590	19,999
Uncollectible Expense	10,013	12,084
Pension, SERP and PBOP Expense, Net	8,629	9,843
Pension Contributions	(23,200)	(24,000)
Regulatory (Under)/Over Recoveries, Net	(32,051)	32,435
Amortization of Regulatory Assets, Net	37,215	78,453
Other	(63,525)	(66,737)
Changes in Current Assets and Liabilities:
Receivables and Unbilled Revenues, Net	(153,464)	(70,996)
Taxes Receivable/Accrued, Net	(1,515)	32,708
Accounts Payable	(1,976)	8,604
Other Current Assets and Liabilities, Net	(68,316)	(51,937)
Net Cash Flows Provided by Operating Activities	399,241	531,513
Investing Activities:
Investments in Property, Plant and Equipment	(609,690)	(699,288)
Other Investing Activities	496	645
Net Cash Flows Used in Investing Activities	(609,194)	(698,643)
Financing Activities:
Cash Dividends on Common Shares	(69,500)	(341,800)
Cash Dividends on Preferred Stock	(4,169)	(4,169)
Capital Contributions from Eversource Parent	125,000	0
Issuance of Long-Term Debt	0	500,000
Retirement of Long-Term Debt	0	(250,000)
Increase in Notes Payable to Eversource Parent	172,100	173,100
Other Financing Activities	(1,214)	12,667
Net Cash Flows Provided by/(Used in) Financing Activities	222,217	89,798
Net Increase/(Decrease) in Cash and Restricted Cash	12,264	(77,332)
Cash, Cash Equivalents and Restricted Cash - Beginning of Period	4,971	91,613
Cash, Cash Equivalents and Restricted Cash - End of Period	17,235	14,281
NSTAR Electric Company
Operating Activities:
Net Income	363,585	338,688
Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities:
Depreciation	238,232	220,303
Deferred Income Taxes	13,436	11,080
Uncollectible Expense	11,321	18,598
Pension, SERP and PBOP Income, Net	(13,714)	(9,779)
Pension and PBOP Contributions	(650)	(4,910)
Regulatory (Under)/Over Recoveries, Net	(20,047)	46,543
Amortization of Regulatory Assets, Net	69,139	73,064
Other	(25,508)	(50,685)
Changes in Current Assets and Liabilities:
Receivables and Unbilled Revenues, Net	(104,528)	(68,167)
Fuel, Materials, Supplies and REC Inventory	27,709	24,033
Taxes Receivable/Accrued, Net	55,405	66,917
Accounts Payable	(57,300)	(47,256)
Other Current Assets and Liabilities, Net	(54,481)	(31,495)
Net Cash Flows Provided by Operating Activities	502,599	586,934
Investing Activities:
Investments in Property, Plant and Equipment	(655,039)	(636,214)
Other Investing Activities	138	67
Net Cash Flows Used in Investing Activities	(654,901)	(636,147)
Financing Activities:
Cash Dividends on Common Shares	(196,500)	(181,800)
Cash Dividends on Preferred Stock	(1,470)	(1,470)
Capital Contributions from Eversource Parent	0	30,000
Increase in Notes Payable to Eversource Parent	6,300	48,700
(Decrease)/Increase in Notes Payable	50,000	(250,500)
Issuance of Long-Term Debt	400,000	400,000
Retirement of Long-Term Debt	(95,000)	0
Other Financing Activities	(4,931)	(3,868)
Net Cash Flows Provided by/(Used in) Financing Activities	158,399	41,062
Net Increase/(Decrease) in Cash and Restricted Cash	6,097	(8,151)
Cash, Cash Equivalents and Restricted Cash - Beginning of Period	6,312	14,659
Cash, Cash Equivalents and Restricted Cash - End of Period	12,409	6,508
Public Service Company of New Hampshire
Operating Activities:
Net Income	118,384	100,512
Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities:
Depreciation	74,494	69,720
Deferred Income Taxes	13,959	12,960
Uncollectible Expense	2,058	4,977
Pension, SERP and PBOP Expense, Net	(894)	683
Pension Contributions	(19,500)	(15,400)
Regulatory (Under)/Over Recoveries, Net	(22,203)	(13,347)
Amortization of Regulatory Assets, Net	39,034	39,944
Other	(7,545)	(23,865)
Changes in Current Assets and Liabilities:
Receivables and Unbilled Revenues, Net	(24,562)	(13,498)
Fuel, Materials, Supplies and REC Inventory	(301)	13,545
Taxes Receivable/Accrued, Net	1,313	31,909
Accounts Payable	(29,388)	(12,100)
Other Current Assets and Liabilities, Net	4,363	6,754
Net Cash Flows Provided by Operating Activities	149,212	202,794
Investing Activities:
Investments in Property, Plant and Equipment	(248,899)	(209,031)
Other Investing Activities	1,969	904
Net Cash Flows Used in Investing Activities	(246,930)	(208,127)
Financing Activities:
Cash Dividends on Common Shares	(22,300)	(252,000)
Repayment of Rate Reduction Bonds	(43,210)	(52,332)
Issuance of Long-Term Debt	150,000	300,000
Increase in Notes Payable to Eversource Parent	2,100	(14,900)
Other Financing Activities	(2,965)	(4,146)
Net Cash Flows Provided by/(Used in) Financing Activities	83,625	(23,378)
Net Increase/(Decrease) in Cash and Restricted Cash	(14,093)	(28,711)
Cash, Cash Equivalents and Restricted Cash - Beginning of Period	36,688	52,723
Cash, Cash Equivalents and Restricted Cash - End of Period	$ 22,595	$ 24,012