CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Operating Activities:
Net Income	$ 756,216	$ 718,762
Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities:
Depreciation	571,152	531,781
Deferred Income Taxes	374,863	301,413
Pension, SERP and PBOP Expense, Net	16,891	31,627
Pension and PBOP Contributions	(197,900)	(121,854)
Regulatory Overrecoveries, Net	185,952	152,808
Amortization of Regulatory Assets, Net	58,058	56,223
Other	(148,741)	(27,671)
Changes in Current Assets and Liabilities:
Receivables and Unbilled Revenues, Net	(107,473)	(191,454)
Fuel, Materials, Supplies and Inventory	23,686	25,425
Taxes Receivable/Accrued, Net	88,856	347,898
Accounts Payable	(96,551)	(121,513)
Other Current Assets and Liabilities, Net	(32,874)	(53,077)
Net Cash Flows Provided by Operating Activities	1,492,135	1,650,368
Investing Activities:
Investments in Property, Plant and Equipment	(1,642,280)	(1,359,171)
Proceeds from Sales of Marketable Securities	520,664	444,209
Purchases of Marketable Securities	(506,302)	(437,197)
Other Investing Activities	(10,177)	(9,463)
Net Cash Flows Used in Investing Activities	(1,638,095)	(1,361,622)
Financing Activities:
Cash Dividends on Common Shares	(451,562)	(423,471)
Cash Dividends on Preferred Stock	(5,639)	(5,639)
Decrease in Notes Payable	(231,500)	(426,453)
Issuance of Long-Term Debt	1,250,000	800,000
Retirements of Long-Term Debt	(320,000)	(200,000)
Other Financing Activities	171	(17,074)
Net Cash Flows Provided by/(Used in) Financing Activities	241,470	(272,637)
Net Increase (decrease) in Cash and Cash Equivalents	95,510	16,109
Cash and Cash Equivalents - Beginning of Period	30,251	23,947
Cash and Cash Equivalents - End of Period	125,761	40,056
The Connecticut Light And Power Company
Operating Activities:
Net Income	277,645	256,553
Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities:
Depreciation	184,275	172,175
Deferred Income Taxes	90,132	109,637
Pension, SERP and PBOP (Benefits)/Expense, Net	4,546	4,825
Regulatory Overrecoveries, Net	71,413	33,492
Amortization of Regulatory Assets, Net	58,799	30,308
Other	(22,113)	(14,873)
Changes in Current Assets and Liabilities:
Receivables and Unbilled Revenues, Net	(70,936)	(100,074)
Taxes Receivable/Accrued, Net	69,335	197,422
Accounts Payable	(1,649)	(30,168)
Other Current Assets and Liabilities, Net	(38,111)	(44,908)
Net Cash Flows Provided by Operating Activities	623,336	614,389
Investing Activities:
Investments in Property, Plant and Equipment	(621,882)	(438,518)
Proceeds from the Sale of Property, Plant and Equipment	0	9,047
Other Investing Activities	185	310
Net Cash Flows Used in Investing Activities	(621,697)	(429,161)
Financing Activities:
Cash Dividends on Common Shares	(205,200)	(149,700)
Capital Contributions from Eversource Parent	0	145,700
Cash Dividends on Preferred Stock	(4,169)	(4,169)
Increase/(Decrease) in Notes Payable to Eversource Parent	(80,100)	(168,900)
Premium on Long-Term Debt Issuance	21,937	0
Issuance of Long-Term Debt	525,000	0
Retirements of Long-Term Debt	(250,000)	0
Other Financing Activities	(6,322)	(609)
Net Cash Flows Provided by/(Used in) Financing Activities	1,146	(177,678)
Net Increase (decrease) in Cash and Cash Equivalents	2,785	7,550
Cash and Cash Equivalents - Beginning of Period	6,579	1,057
Cash and Cash Equivalents - End of Period	9,364	8,607
NSTAR Electric Company
Operating Activities:
Net Income	251,685	239,857
Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities:
Depreciation	167,598	159,151
Deferred Income Taxes	71,327	40,960
Pension and PBOP Contributions	(83,040)	(26,734)
Pension, SERP and PBOP (Benefits)/Expense, Net	(7,305)	1,370
Regulatory Overrecoveries, Net	61,356	131,774
Amortization of Regulatory Assets, Net	17,806	18,275
Other	(23,120)	(20,088)
Changes in Current Assets and Liabilities:
Receivables and Unbilled Revenues, Net	(95,398)	(103,444)
Fuel, Materials, Supplies and Inventory	9,086	30,659
Taxes Receivable/Accrued, Net	67,501	141,379
Accounts Payable	(38,486)	(22,913)
Other Current Assets and Liabilities, Net	13,961	(25,942)
Net Cash Flows Provided by Operating Activities	412,971	564,304
Investing Activities:
Investments in Property, Plant and Equipment	(358,041)	(327,731)
Other Investing Activities	(3,617)	0
Net Cash Flows Used in Investing Activities	(361,658)	(327,731)
Financing Activities:
Cash Dividends on Common Shares	(186,000)	(278,300)
Capital Contributions from Eversource Parent	2,300	25,000
Cash Dividends on Preferred Stock	(1,470)	(1,470)
Decrease in Notes Payable	(126,500)	(26,500)
Issuance of Long-Term Debt	350,000	250,000
Retirements of Long-Term Debt	0	(200,000)
Other Financing Activities	(3,222)	(2,495)
Net Cash Flows Provided by/(Used in) Financing Activities	35,108	(233,765)
Net Increase (decrease) in Cash and Cash Equivalents	86,421	2,808
Cash and Cash Equivalents - Beginning of Period	3,494	3,346
Cash and Cash Equivalents - End of Period	89,915	6,154
Public Service Company Of New Hampshire
Operating Activities:
Net Income	99,626	105,829
Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities:
Depreciation	95,266	86,524
Deferred Income Taxes	43,217	74,522
Regulatory Overrecoveries, Net	8,910	(4,289)
Amortization of Regulatory (Liabilities)/Assets, Net	(10,658)	14,490
Other	(7,792)	(12,660)
Changes in Current Assets and Liabilities:
Receivables and Unbilled Revenues, Net	(30,276)	(28,754)
Fuel, Materials, Supplies and Inventory	4,263	(4,014)
Taxes Receivable/Accrued, Net	10,749	33,589
Accounts Payable	18,394	14,508
Other Current Assets and Liabilities, Net	32,296	26,207
Net Cash Flows Provided by Operating Activities	263,995	305,952
Investing Activities:
Investments in Property, Plant and Equipment	(215,470)	(215,804)
Other Investing Activities	113	272
Net Cash Flows Used in Investing Activities	(215,357)	(215,532)
Financing Activities:
Cash Dividends on Common Shares	(23,900)	(58,200)
Capital Contributions from Eversource Parent	0	94,500
Increase/(Decrease) in Notes Payable to Eversource Parent	41,400	(123,800)
Retirements of Long-Term Debt	(70,000)	0
Other Financing Activities	(187)	(217)
Net Cash Flows Provided by/(Used in) Financing Activities	(52,687)	(87,717)
Net Increase (decrease) in Cash and Cash Equivalents	(4,049)	2,703
Cash and Cash Equivalents - Beginning of Period	4,646	1,733
Cash and Cash Equivalents - End of Period	597	4,436
Western Massachusetts Electric Company
Operating Activities:
Net Income	52,446	46,103
Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities:
Depreciation	36,844	34,414
Deferred Income Taxes	29,008	15,587
Regulatory Overrecoveries, Net	10,291	323
Amortization of Regulatory (Liabilities)/Assets, Net	(563)	3,305
Other	(10,182)	(2,532)
Changes in Current Assets and Liabilities:
Receivables and Unbilled Revenues, Net	(16,818)	1,933
Taxes Receivable/Accrued, Net	4,203	36,658
Accounts Payable	(5,777)	(16,240)
Other Current Assets and Liabilities, Net	(7,482)	5,277
Net Cash Flows Provided by Operating Activities	91,970	124,828
Investing Activities:
Investments in Property, Plant and Equipment	(109,233)	(104,811)
Proceeds from Sales of Marketable Securities	1,641	1,934
Purchases of Marketable Securities	(1,590)	(1,894)
Net Cash Flows Used in Investing Activities	(109,182)	(104,771)
Financing Activities:
Cash Dividends on Common Shares	(28,500)	(28,500)
Capital Contributions from Eversource Parent	0	53,000
Increase/(Decrease) in Notes Payable to Eversource Parent	45,900	(95,200)
Issuance of Long-Term Debt	0	50,000
Other Financing Activities	(188)	(191)
Net Cash Flows Provided by/(Used in) Financing Activities	17,212	(20,891)
Net Increase (decrease) in Cash and Cash Equivalents	0	(834)
Cash and Cash Equivalents - Beginning of Period	0	834
Cash and Cash Equivalents - End of Period	$ 0	$ 0