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Condensed Consolidated Statements of Income (unaudited) - HECO - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Revenues    
Revenues $ 928,237 $ 785,068
Expenses    
Total expenses 834,719 685,792
Total operating income 93,518 99,276
Allowance for equity funds used during construction 3,301 2,409
Retirement defined benefits credit—other than service costs 1,152 1,243
Allowance for borrowed funds used during construction 1,131 778
Income before income taxes 70,304 87,480
Income taxes 15,110 17,840
Net income attributable to Hawaiian Electric 55,194 69,640
Preferred stock dividends of Hawaiian Electric 473 473
Net income for common stock 54,721 69,167
Hawaiian Electric Company, Inc. and Subsidiaries    
Revenues    
Revenues 830,361 708,792
Expenses    
Fuel oil 334,097 221,286
Purchased power 152,761 163,533
Other operation and maintenance 128,316 125,257
Depreciation 60,927 58,471
Taxes, other than income taxes 78,385 66,650
Total expenses 754,486 635,197
Total operating income 75,875 73,595
Allowance for equity funds used during construction 3,301 2,409
Retirement defined benefits credit—other than service costs 1,047 990
Interest expense and other charges, net (20,246) (18,326)
Allowance for borrowed funds used during construction 1,131 778
Income before income taxes 61,108 59,446
Income taxes 13,600 12,538
Net income 47,508 46,908
Preferred stock dividends of subsidiaries 229 229
Net income attributable to Hawaiian Electric 47,279 46,679
Preferred stock dividends of Hawaiian Electric 270 270
Net income for common stock $ 47,009 $ 46,409