CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current Assets:
Cash	$ 47,425	$ 15,432
Receivables, Net (net of allowance for uncollectible accounts)	1,018,941	989,383
Unbilled Revenues	155,224	181,006
Fuel, Materials, Supplies and REC Inventory	286,498	235,471
Regulatory Assets	785,125	651,112
Prepayments and Other Current Assets	269,457	342,135
Total Current Assets	2,562,670	2,414,539
Property, Plant and Equipment, Net	28,041,356	27,585,470
Deferred Debits and Other Assets:
Regulatory Assets	4,778,321	4,863,639
Goodwill	4,427,266	4,427,266
Investments in Unconsolidated Affiliates	876,328	871,633
Marketable Securities	418,715	449,130
Other Long-Term Assets	544,330	512,238
Total Deferred Debits and Other Assets	11,044,960	11,123,906
Total Assets	41,648,986	41,123,915
Current Liabilities:
Notes Payable	661,420	889,084
Long-Term Debt – Current Portion	532,440	327,411
Rate Reduction Bonds – Current Portion	43,210	43,210
Accounts Payable	914,333	1,147,872
Renewable Portfolio Standards Compliance Obligations	192,660	160,149
Regulatory Liabilities	439,859	361,152
Other Current Liabilities	611,706	676,685
Total Current Liabilities	3,395,628	3,605,563
Deferred Credits and Other Liabilities:
Accumulated Deferred Income Taxes	3,816,988	3,755,777
Regulatory Liabilities	3,668,158	3,658,042
Derivative Liabilities	342,990	338,710
Asset Retirement Obligations	489,519	488,511
Accrued Pension, SERP and PBOP	1,331,884	1,370,245
Other Long-Term Liabilities	821,195	810,553
Total Deferred Credits and Other Liabilities	10,470,734	10,421,838
Long-Term Debt	13,898,581	13,770,828
Rate Reduction Bonds	518,517	540,122
Noncontrolling Interest – Preferred Stock of Subsidiaries	155,570	155,570
Common Shareholders' Equity:
Common Shares	1,759,092	1,729,292
Capital Surplus, Paid In	7,479,689	7,087,768
Retained Earnings	4,322,825	4,177,048
Accumulated Other Comprehensive Income (Loss)	(63,111)	(65,059)
Treasury Stock	(288,539)	(299,055)
Common Shareholders' Equity	13,209,956	12,629,994
Commitments and Contingencies (Note 9)
Total Liabilities and Capitalization	41,648,986	41,123,915
The Connecticut Light and Power Company
Current Assets:
Cash	3,785	0
Receivables, Net (net of allowance for uncollectible accounts)	389,102	400,927
Accounts Receivable from Affiliated Companies	33,701	24,577
Unbilled Revenues	49,982	56,465
Fuel, Materials, Supplies and REC Inventory	49,962	50,700
Regulatory Assets	290,630	178,607
Prepayments and Other Current Assets	69,767	73,184
Total Current Assets	886,929	784,460
Property, Plant and Equipment, Net	9,760,890	9,625,765
Deferred Debits and Other Assets:
Regulatory Assets	1,529,003	1,557,261
Other Long-Term Assets	250,243	217,705
Total Deferred Debits and Other Assets	1,779,246	1,774,966
Total Assets	12,427,065	12,185,191
Current Liabilities:
Notes Payable to Eversource Parent	219,000	63,800
Accounts Payable	331,491	374,698
Accounts Payable to Affiliated Companies	88,553	97,793
Obligations to Third Party Suppliers	50,335	56,952
Regulatory Liabilities	119,283	82,763
Derivative Liabilities	69,631	67,804
Other Current Liabilities	152,138	132,339
Total Current Liabilities	1,030,431	876,149
Deferred Credits and Other Liabilities:
Accumulated Deferred Income Taxes	1,270,025	1,244,551
Regulatory Liabilities	1,179,663	1,164,991
Derivative Liabilities	342,701	338,594
Accrued Pension, SERP and PBOP	385,451	391,159
Other Long-Term Liabilities	149,693	147,586
Total Deferred Credits and Other Liabilities	3,327,533	3,286,881
Long-Term Debt	3,518,129	3,518,136
Noncontrolling Interest – Preferred Stock of Subsidiaries	116,200	116,200
Common Shareholders' Equity:
Common Shares	60,352	60,352
Capital Surplus, Paid In	2,535,765	2,535,765
Retained Earnings	1,838,340	1,791,392
Accumulated Other Comprehensive Income (Loss)	315	316
Common Shareholders' Equity	4,434,772	4,387,825
Commitments and Contingencies (Note 9)
Total Liabilities and Capitalization	12,427,065	12,185,191
NSTAR Electric Company
Current Assets:
Cash	2,844	52
Receivables, Net (net of allowance for uncollectible accounts)	375,587	346,785
Accounts Receivable from Affiliated Companies	66,838	29,914
Unbilled Revenues	32,629	37,482
Fuel, Materials, Supplies and REC Inventory	178,510	124,060
Regulatory Assets	304,007	285,591
Prepayments and Other Current Assets	16,305	31,150
Total Current Assets	976,720	855,034
Property, Plant and Equipment, Net	9,614,555	9,472,770
Deferred Debits and Other Assets:
Regulatory Assets	1,225,314	1,250,029
Prepaid PBOP	172,244	166,058
Other Long-Term Assets	139,304	144,368
Total Deferred Debits and Other Assets	1,536,862	1,560,455
Total Assets	12,128,137	11,888,259
Current Liabilities:
Notes Payable	88,000	10,500
Notes Payable to Eversource Parent	38,400	30,300
Long-Term Debt – Current Portion	0	95,000
Accounts Payable	264,148	363,691
Accounts Payable to Affiliated Companies	93,344	96,307
Obligations to Third Party Suppliers	107,341	108,827
Renewable Portfolio Standards Compliance Obligations	179,075	150,429
Regulatory Liabilities	219,872	209,180
Other Current Liabilities	68,463	71,333
Total Current Liabilities	1,058,643	1,135,567
Deferred Credits and Other Liabilities:
Accumulated Deferred Income Taxes	1,374,963	1,357,265
Regulatory Liabilities	1,515,732	1,516,585
Accrued Pension, SERP and PBOP	95,746	108,243
Other Long-Term Liabilities	334,538	320,629
Total Deferred Credits and Other Liabilities	3,320,979	3,302,722
Long-Term Debt	3,642,325	3,247,086
Noncontrolling Interest – Preferred Stock of Subsidiaries	43,000	43,000
Common Shareholders' Equity:
Common Shares	0	0
Capital Surplus, Paid In	1,813,442	1,813,442
Retained Earnings	2,249,526	2,346,287
Accumulated Other Comprehensive Income (Loss)	222	155
Common Shareholders' Equity	4,063,190	4,159,884
Commitments and Contingencies (Note 9)
Total Liabilities and Capitalization	12,128,137	11,888,259
Public Service Company of New Hampshire
Current Assets:
Cash	19	413
Receivables, Net (net of allowance for uncollectible accounts)	99,792	99,934
Accounts Receivable from Affiliated Companies	10,176	6,763
Unbilled Revenues	42,344	48,146
Fuel, Materials, Supplies and REC Inventory	28,483	24,957
Regulatory Assets	102,438	84,053
Special Deposits	16,627	32,513
Prepayments and Other Current Assets	6,268	19,431
Total Current Assets	306,147	316,210
Property, Plant and Equipment, Net	3,187,282	3,129,506
Deferred Debits and Other Assets:
Regulatory Assets	843,904	861,672
Other Long-Term Assets	41,564	43,270
Total Deferred Debits and Other Assets	885,468	904,942
Total Assets	4,378,897	4,350,658
Current Liabilities:
Notes Payable to Eversource Parent	84,700	27,000
Rate Reduction Bonds – Current Portion	43,210	43,210
Accounts Payable	103,551	127,081
Accounts Payable to Affiliated Companies	32,707	37,946
Regulatory Liabilities	69,042	65,766
Accrued Interest	14,323	19,138
Other Current Liabilities	39,636	32,736
Total Current Liabilities	387,169	352,877
Deferred Credits and Other Liabilities:
Accumulated Deferred Income Taxes	511,822	506,212
Regulatory Liabilities	411,959	413,381
Accrued Pension, SERP and PBOP	152,649	157,638
Other Long-Term Liabilities	36,022	37,075
Total Deferred Credits and Other Liabilities	1,112,452	1,114,306
Long-Term Debt	951,747	951,620
Rate Reduction Bonds	518,517	540,122
Common Shareholders' Equity:
Common Shares	0	0
Capital Surplus, Paid In	903,134	903,134
Retained Earnings	507,307	490,306
Accumulated Other Comprehensive Income (Loss)	(1,429)	(1,707)
Common Shareholders' Equity	1,409,012	1,391,733
Commitments and Contingencies (Note 9)
Total Liabilities and Capitalization	$ 4,378,897	$ 4,350,658