NSTAR ELECTRIC COMPANY AND SUBSIDIARY CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Operating Revenues	$ 3,063,224	$ 2,791,482	$ 8,929,321	$ 9,216,467
Operating Expenses:
Purchased Power and Transmission	917,858	1,168,599	2,995,245	4,232,912
Operations and Maintenance	510,439	500,711	1,437,826	1,382,563
Depreciation	366,145	329,528	1,060,650	962,477
Energy Efficiency Programs	148,054	162,425	506,821	531,199
Taxes Other Than Income Taxes	264,371	243,645	740,414	704,989
Total Operating Expenses	2,450,824	2,260,929	6,868,451	7,375,680
Operating Income/(Loss)	612,400	530,553	2,060,870	1,840,787
Interest Expense	300,576	222,283	822,640	624,140
Other Income, Net	112,555	79,123	318,870	262,980
(Loss)/Income Before Income Tax Expense	(39,640)	387,393	1,093,081	1,078,627
Income Tax Expense	76,537	45,850	348,309	226,743
NSTAR Electric Company
Operating Revenues	1,077,523	953,531	2,870,206	2,728,782
Operating Expenses:
Purchased Power and Transmission	335,335	308,999	817,988	936,484
Operations and Maintenance	189,012	174,091	526,263	487,026
Depreciation	104,623	94,103	301,831	277,396
Amortization of Regulatory Assets/(Liabilities), Net	51,187	(6,462)	120,814	14,923
Energy Efficiency Programs	73,255	95,351	222,218	252,255
Taxes Other Than Income Taxes	74,758	68,449	205,818	188,191
Total Operating Expenses	828,170	734,531	2,194,932	2,156,275
Operating Income/(Loss)	249,353	219,000	675,274	572,507
Interest Expense	60,783	48,178	164,896	139,804
Other Income, Net	47,489	39,908	143,024	120,690
(Loss)/Income Before Income Tax Expense	236,059	210,730	653,402	553,393
Income Tax Expense	51,510	46,019	151,273	120,126
Net (Loss)/Income	$ 184,549	$ 164,711	$ 502,129	$ 433,267