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NSTAR ELECTRIC COMPANY AND SUBSIDIARY CONSOLIDATED STATEMENTS OF INCOME - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Operating Revenues $ 11,910,705 $ 12,289,336 $ 9,863,085
Operating Expenses:      
Purchased Power and Transmission 5,168,241 5,014,074 3,372,344
Operations and Maintenance 1,895,703 1,865,328 1,739,685
Depreciation 1,305,840 1,194,246 1,103,008
Energy Efficiency Programs 691,344 658,051 592,775
Taxes Other Than Income Taxes 940,359 910,591 829,987
Total Operating Expenses 9,511,370 10,091,182 7,869,764
Operating Income 2,399,335 2,198,154 1,993,321
Interest Expense 855,441 678,274 582,334
Other Income, Net 348,069 346,088 161,282
(Loss)/Income Before Income Tax Expense (275,037) 1,865,968 1,572,269
Income Tax Expense 159,684 453,574 344,223
Net (Loss)/Income (434,700) 1,412,400 1,228,000
NSTAR Electric Company      
Operating Revenues 3,515,539 3,583,070 3,056,350
Operating Expenses:      
Purchased Power and Transmission 1,154,013 1,264,824 932,530
Operations and Maintenance 668,466 640,834 563,172
Depreciation 372,578 361,969 337,451
Amortization of Regulatory (Liabilities)/Assets, Net 16,150 83,855 55,774
Energy Efficiency Programs 325,593 332,247 288,612
Taxes Other Than Income Taxes 256,090 246,705 216,703
Total Operating Expenses 2,792,890 2,930,434 2,394,242
Operating Income 722,649 652,636 662,108
Interest Expense 189,254 162,892 146,048
Other Income, Net 164,129 142,661 74,844
(Loss)/Income Before Income Tax Expense 697,524 632,405 590,904
Income Tax Expense 152,996 139,977 114,335
Net (Loss)/Income $ 544,528 $ 492,428 $ 476,569