Consolidated Statements of Income - HECO - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues	$ 3,682,166	$ 3,741,985	$ 2,850,379
Expenses
Total expenses	3,329,562	3,360,912	2,464,313
Operating income	352,604	381,073	386,066
Allowance for equity funds used during construction	15,164	10,574	9,534
Retirement defined benefits credit—other than service costs	4,768	4,411	5,848
Allowance for borrowed funds used during construction	5,201	3,416	3,250
Interest income	9,105	0	0
Income before income taxes	245,701	304,195	310,863
Income taxes	44,573	61,167	62,807
Net income	201,128	243,028	248,056
Preferred stock dividends of Hawaiian Electric	1,890	1,890	1,890
Net income for common stock	199,238	241,138	246,166
Hawaiian Electric Company, Inc. and Subsidiaries
Revenues	3,269,521	3,408,587	2,539,636
Expenses
Fuel oil	1,211,420	1,265,614	644,349
Purchased power	671,769	793,584	670,494
Other operation and maintenance	533,557	497,601	475,412
Depreciation	243,705	235,424	229,469
Taxes, other than income taxes	306,912	317,173	240,354
Total expenses	2,967,363	3,109,396	2,260,078
Operating income	302,158	299,191	279,558
Allowance for equity funds used during construction	15,164	10,574	9,534
Retirement defined benefits credit—other than service costs	4,303	3,835	3,890
Interest expense and other charges, net	(86,140)	(76,416)	(72,447)
Allowance for borrowed funds used during construction	5,201	3,416	3,250
Interest income	6,454	0	0
Income before income taxes	247,140	240,600	223,785
Income taxes	51,193	49,676	44,148
Net income (loss)	195,947	190,924	179,637
Preferred stock dividends of subsidiaries	915	915	915
Net income	195,032	190,009	178,722
Preferred stock dividends of Hawaiian Electric	1,080	1,080	1,080
Net income for common stock	$ 193,952	$ 188,929	$ 177,642