XML 53 R18.htm IDEA: XBRL DOCUMENT v3.22.0.1
NSTAR ELECTRIC COMPANY AND SUBSIDIARY CONSOLIDATED STATEMENTS OF INCOME - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Operating Revenues $ 9,863,085 $ 8,904,430 $ 8,526,470
Operating Expenses:      
Purchased Power and Transmission 3,372,344 2,987,840 3,040,160
Operations and Maintenance 1,739,685 1,480,252 1,363,113
Depreciation 1,103,008 981,380 885,278
Amortization of Regulatory Assets, Net 231,965 177,679 195,380
Energy Efficiency Programs 592,775 535,760 501,369
Taxes Other Than Income Taxes 829,987 752,785 711,035
Total Operating Expenses 7,869,764 6,915,696 6,935,979
Operating Income 1,993,321 1,988,734 1,590,491
Interest Expense 582,334 538,452 533,197
Other Income, Net 161,282 108,590 132,777
Income Before Income Tax Expense 1,572,269 1,558,872 1,190,071
Income Tax Expense 344,223 346,186 273,499
Net Income 1,228,046 1,212,686 916,572
NSTAR Electric Company      
Operating Revenues 3,056,350 2,941,148 3,044,642
Operating Expenses:      
Purchased Power and Transmission 932,530 879,244 1,064,289
Operations and Maintenance 563,172 534,118 468,436
Depreciation 337,451 319,468 296,500
Amortization of Regulatory Assets, Net 55,774 83,248 103,735
Energy Efficiency Programs 288,612 263,986 289,206
Taxes Other Than Income Taxes 216,703 206,764 195,586
Total Operating Expenses 2,394,242 2,286,828 2,417,752
Operating Income 662,108 654,320 626,890
Interest Expense 146,048 130,508 114,198
Other Income, Net 74,844 52,017 44,577
Income Before Income Tax Expense 590,904 575,829 557,269
Income Tax Expense 114,335 130,828 125,313
Net Income $ 476,569 $ 445,001 $ 431,956