CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating Revenues	$ 1,884,495	$ 1,853,856	$ 4,300,287	$ 4,141,818
Operating Expenses:
Purchased Power, Fuel and Transmission	620,904	653,915	1,595,786	1,600,662
Operations and Maintenance	328,010	293,858	663,606	626,406
Depreciation	219,084	199,140	434,032	403,406
Amortization	38,945	36,203	109,906	81,397
Energy Efficiency Programs	105,837	101,955	245,953	236,196
Taxes Other Than Income Taxes	181,083	177,431	365,672	359,865
Impairment of Northern Pass Transmission	239,644	0	239,644	0
Total Operating Expenses	1,733,507	1,462,502	3,654,599	3,307,932
Operating Income/(Loss)	150,988	391,354	645,688	833,886
Interest Expense	132,705	126,404	264,438	247,533
Other Income, Net	45,866	50,149	76,850	83,938
Income Before Income Tax Expense	64,149	315,099	458,100	670,291
Income Tax Expense	30,815	70,452	114,209	154,219
Net Income	33,334	244,647	343,891	516,072
Net Income Attributable to Noncontrolling Interests	1,880	1,880	3,759	3,759
Net Income Attributable to Common Shareholders	$ 31,454	$ 242,767	$ 340,132	$ 512,313
Basic and Diluted Earnings Per Common Share (in dollars per share)	$ 0.10	$ 0.76	$ 1.07	$ 1.61
Weighted Average Common Shares Outstanding:
Basic (in shares)	319,664,998	317,344,596	318,644,796	317,370,825
Diluted (in shares)	320,388,490	317,885,187	319,352,287	317,939,094
The Connecticut Light and Power Company
Operating Revenues	$ 740,846	$ 694,892	$ 1,590,092	$ 1,479,875
Operating Expenses:
Purchased Power, Fuel and Transmission	246,540	234,335	566,373	536,223
Operations and Maintenance	133,351	109,685	263,989	226,977
Depreciation	74,555	69,383	147,844	136,881
Amortization of Regulatory Assets, Net	12,376	15,400	48,047	43,405
Energy Efficiency Programs	20,780	18,606	46,768	41,366
Taxes Other Than Income Taxes	86,465	84,375	178,463	174,676
Total Operating Expenses	574,067	531,784	1,251,484	1,159,528
Operating Income/(Loss)	166,779	163,108	338,608	320,347
Interest Expense	36,972	38,674	72,754	75,498
Other Income, Net	2,853	7,063	6,733	13,623
Income Before Income Tax Expense	132,660	131,497	272,587	258,472
Income Tax Expense	27,856	31,785	57,312	60,192
Net Income	104,804	99,712	215,275	198,280
NSTAR Electric Company
Operating Revenues	681,893	690,737	1,479,505	1,460,865
Operating Expenses:
Purchased Power, Fuel and Transmission	228,397	266,108	558,501	598,687
Operations and Maintenance	108,924	102,163	221,887	220,844
Depreciation	73,055	64,051	145,639	134,593
Amortization of Regulatory Assets, Net	23,184	11,954	45,768	18,318
Energy Efficiency Programs	65,904	65,184	142,633	139,978
Taxes Other Than Income Taxes	48,226	47,627	93,047	95,815
Total Operating Expenses	547,690	557,087	1,207,475	1,208,235
Operating Income/(Loss)	134,203	133,650	272,030	252,630
Interest Expense	28,238	27,359	56,120	53,822
Other Income, Net	10,657	14,269	21,743	26,870
Income Before Income Tax Expense	116,622	120,560	237,653	225,678
Income Tax Expense	26,888	32,639	53,906	60,607
Net Income	89,734	87,921	183,747	165,071
Public Service Company of New Hampshire
Operating Revenues	240,900	235,146	517,335	502,497
Operating Expenses:
Purchased Power, Fuel and Transmission	85,768	83,494	199,299	193,212
Operations and Maintenance	52,729	46,487	105,359	97,867
Depreciation	23,261	22,808	46,180	46,301
Amortization of Regulatory Assets, Net	5,857	8,926	19,523	13,961
Energy Efficiency Programs	6,215	4,674	12,929	9,831
Taxes Other Than Income Taxes	20,725	21,879	38,037	38,680
Total Operating Expenses	194,555	188,268	421,327	399,852
Operating Income/(Loss)	46,345	46,878	96,008	102,645
Interest Expense	13,909	14,612	28,276	27,386
Other Income, Net	2,984	3,409	10,006	8,159
Income Before Income Tax Expense	35,420	35,675	77,738	83,418
Income Tax Expense	8,568	9,896	18,104	22,547
Net Income	$ 26,852	$ 25,779	$ 59,634	$ 60,871