CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Revenues	$ 2,825,840	$ 2,373,726
Operating Expenses:
Purchased Power, Fuel and Transmission	998,491	876,570
Operations and Maintenance	465,542	342,062
Depreciation	270,704	236,211
Amortization	108,013	49,776
Energy Efficiency Programs	188,063	148,393
Taxes Other Than Income Taxes	209,459	181,594
Total Operating Expenses	2,240,272	1,834,606
Operating Income/(Loss)	585,568	539,120
Interest Expense	137,766	134,715
Other Income, Net	34,201	24,104
Income Before Income Tax Expense	482,003	428,509
Income Tax Expense	113,980	91,876
Net Income	368,023	336,633
Net Income Attributable to Noncontrolling Interests	1,880	1,880
Net Income Attributable to Common Shareholders	$ 366,143	$ 334,753
Basic Earnings Per Common Share (in dollars per share)	$ 1.07	$ 1.01
Diluted Earnings Per Common Share (in dollars per share)	$ 1.06	$ 1.01
Weighted Average Common Shares Outstanding:
Basic (in shares)	343,678,243	331,102,237
Diluted (in shares)	344,334,689	332,937,153
The Connecticut Light and Power Company
Operating Revenues	$ 987,274	$ 899,703
Operating Expenses:
Purchased Power, Fuel and Transmission	373,274	374,717
Operations and Maintenance	175,420	135,597
Depreciation	83,405	78,435
Amortization of Regulatory Assets, Net	62,775	6,548
Energy Efficiency Programs	35,573	35,479
Taxes Other Than Income Taxes	91,392	82,987
Total Operating Expenses	821,839	713,763
Operating Income/(Loss)	165,435	185,940
Interest Expense	38,979	37,883
Other Income, Net	4,908	1,898
Income Before Income Tax Expense	131,364	149,955
Income Tax Expense	32,966	31,217
Net Income	98,398	118,738
NSTAR Electric Company
Operating Revenues	737,043	733,833
Operating Expenses:
Purchased Power, Fuel and Transmission	226,478	242,439
Operations and Maintenance	143,219	122,318
Depreciation	82,793	78,345
Amortization of Regulatory Assets, Net	18,418	27,008
Energy Efficiency Programs	75,099	68,667
Taxes Other Than Income Taxes	54,652	48,722
Total Operating Expenses	600,659	587,499
Operating Income/(Loss)	136,384	146,334
Interest Expense	32,306	31,017
Other Income, Net	16,812	12,238
Income Before Income Tax Expense	120,890	127,555
Income Tax Expense	26,966	27,165
Net Income	93,924	100,390
Public Service Company of New Hampshire
Operating Revenues	293,435	276,368
Operating Expenses:
Purchased Power, Fuel and Transmission	91,609	94,138
Operations and Maintenance	54,664	47,128
Depreciation	29,468	24,334
Amortization of Regulatory Assets, Net	18,547	20,110
Energy Efficiency Programs	10,348	9,364
Taxes Other Than Income Taxes	22,149	19,701
Total Operating Expenses	226,785	214,775
Operating Income/(Loss)	66,650	61,593
Interest Expense	14,630	14,479
Other Income, Net	4,166	3,190
Income Before Income Tax Expense	56,186	50,304
Income Tax Expense	11,510	10,703
Net Income	$ 44,676	$ 39,601