Condensed Consolidated Statements of Cash Flows (unaudited) - HECO - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation of property, plant and equipment	$ 200,722	$ 190,075
Other amortization	32,744	28,916
Deferred income taxes	(5,594)	(21,631)
Allowance for equity funds used during construction	(11,073)	(7,431)
Other	(5,315)	(5,392)
Changes in assets and liabilities
Decrease (increase) in fuel oil stock	38,587	(127,413)
Decrease in regulatory assets	13,908	34,278
Increase in regulatory liabilities	32,454	29,294
Change in prepaid and accrued income taxes, tax credits and revenue taxes	(24,860)	73,279
Decrease in defined benefit pension and other postretirement benefit plans liability	(6,722)	(4,228)
Change in other assets and liabilities	(70,354)	(44,411)
Net cash provided by operating activities	475,138	212,987
Cash flows from investing activities
Capital expenditures	(342,364)	(236,278)
Other	9,375	15,646
Net cash used in investing activities	(369,638)	(794,762)
Cash flows from financing activities
Common stock dividends	(112,957)	(114,917)
Proceeds from issuance of long-term debt	625,000	67,312
Net increase (decrease) in short-term borrowings from non-affiliates and affiliates with original maturities of three months or less	(137,650)	117,127
Other	(9,409)	(6,112)
Net cash provided by financing activities	371,866	449,491
Net increase (decrease) in cash, cash equivalents and restricted cash	477,366	(132,284)
Cash, cash equivalents and restricted cash, beginning of period	204,927	311,462
Cash, cash equivalents and restricted cash, end of period	682,293	179,178
Less: Restricted cash	(15,164)	(3,898)
Cash and cash equivalents	667,129	175,280
Hawaiian Electric Company, Inc. and Subsidiaries
Cash flows from operating activities
Net income	137,265	141,804
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation of property, plant and equipment	182,781	175,921
Other amortization	19,639	19,044
Deferred income taxes	(8,807)	(27,671)
State refundable credit	(8,625)	(8,275)
Bad debt expense	3,937	4,406
Allowance for equity funds used during construction	(11,073)	(7,431)
Other	549	94
Changes in assets and liabilities
Decrease (increase) in accounts receivable	40,187	(64,404)
Decrease (increase) in accrued unbilled revenues	3,759	(91,256)
Decrease (increase) in fuel oil stock	38,762	(125,647)
Increase in materials and supplies	(19,958)	(5,702)
Decrease in regulatory assets	13,908	34,278
Increase in regulatory liabilities	32,454	29,294
Increase in accounts payable	26,967	18,108
Change in prepaid and accrued income taxes, tax credits and revenue taxes	(18,754)	57,681
Decrease in defined benefit pension and other postretirement benefit plans liability	(6,202)	(3,647)
Change in other assets and liabilities	(20,678)	(22,430)
Net cash provided by operating activities	406,111	124,167
Cash flows from investing activities
Capital expenditures	(334,497)	(225,876)
Other	5,216	6,750
Net cash used in investing activities	(329,281)	(219,126)
Cash flows from financing activities
Common stock dividends	(96,750)	(94,425)
Preferred stock dividends of Hawaiian Electric and subsidiaries	(1,496)	(1,496)
Proceeds from issuance of long-term debt	350,000	60,000
Net increase (decrease) in short-term borrowings from non-affiliates and affiliates with original maturities of three months or less	(87,967)	97,450
Payments of obligations under finance leases	(2,162)	(266)
Other	(843)	(258)
Net cash provided by financing activities	160,782	61,005
Net increase (decrease) in cash, cash equivalents and restricted cash	237,612	(33,954)
Cash, cash equivalents and restricted cash, beginning of period	39,242	55,258
Cash, cash equivalents and restricted cash, end of period	276,854	21,304
Less: Restricted cash	(2,000)	0
Cash and cash equivalents	$ 274,854	$ 21,304