NSTAR ELECTRIC COMPANY AND SUBSIDIARY CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating Revenues	$ 3,795,643	$ 3,471,310
Operating Expenses:
Purchased Power and Transmission	1,903,246	1,389,696
Operations and Maintenance	454,562	472,433
Depreciation	312,955	289,330
Energy Efficiency Programs	222,952	199,484
Taxes Other Than Income Taxes	228,414	220,364
Total Operating Expenses	3,046,070	2,808,255
Operating Income/(Loss)	749,573	663,055
Interest Expense	194,543	153,245
Other Income, Net	88,981	71,561
Income Before Income Tax Expense	644,011	581,371
Income Tax Expense	150,972	136,045
Net Income	493,039	445,326
NSTAR Electric Company
Operating Revenues	956,283	863,176
Operating Expenses:
Purchased Power and Transmission	360,925	313,748
Operations and Maintenance	166,083	164,862
Depreciation	90,430	89,033
Amortization of Regulatory (Liabilities)/Assets, Net	22,785	29,345
Energy Efficiency Programs	86,217	80,232
Taxes Other Than Income Taxes	53,510	59,774
Total Operating Expenses	779,950	736,994
Operating Income/(Loss)	176,333	126,182
Interest Expense	44,865	38,222
Other Income, Net	39,873	29,231
Income Before Income Tax Expense	171,341	117,191
Income Tax Expense	37,528	24,452
Net Income	$ 133,813	$ 92,739