Condensed Consolidated Statements of Cash Flows (unaudited) - HECO - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation of property, plant and equipment	$ 62,990	$ 61,427
Other amortization	9,425	10,951
Deferred income taxes	(5,255)	(2,196)
Allowance for equity funds used during construction	(2,409)	(2,191)
Other	(2,552)	(3,519)
Changes in assets and liabilities
Increase in fuel oil stock	(35,333)	(16,400)
Increase in regulatory assets	(5,089)	(14,869)
Increase (decrease) in regulatory liabilities	5,520	(4,716)
Change in prepaid and accrued income taxes, tax credits and utility revenue taxes	(14,928)	(25,513)
Decrease in defined benefit pension and other postretirement benefit plans liability	(1,309)	(2,621)
Change in other assets and liabilities	(55,411)	(34,095)
Net cash provided by operating activities	92,585	41,730
Cash flows from investing activities
Capital expenditures	(79,163)	(74,079)
Other	5,340	4,622
Net cash used in investing activities	(227,714)	(518,020)
Cash flows from financing activities
Common stock dividends	(38,301)	(37,156)
Repayment of short-term debt	0	(65,000)
Proceeds from issuance of long-term debt	7,312	161,800
Net increase in other bank borrowings with original maturities of three months or less	49,080	13,015
Other	(4,377)	(4,621)
Net cash provided by financing activities	131,283	408,957
Net decrease in cash, cash equivalents and restricted cash	(3,846)	(67,333)
Cash, cash equivalents and restricted cash, beginning of period	311,462	358,979
Cash, cash equivalents and restricted cash, end of period	307,616	291,646
Less: Restricted cash	(5,912)	(14,067)
Cash and cash equivalents, end of period	301,704	277,579
Hawaiian Electric Company, Inc. and Subsidiaries
Cash flows from operating activities
Net income	46,908	43,857
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation of property, plant and equipment	58,471	57,355
Other amortization	6,355	6,577
Deferred income taxes	(6,021)	(4,671)
State refundable credit	(2,759)	(2,662)
Bad debt expense	1,619	457
Allowance for equity funds used during construction	(2,409)	(2,191)
Other	(2)	(1)
Changes in assets and liabilities
Decrease in accounts receivable	16,236	6,078
Increase in accrued unbilled revenues	(10,825)	(427)
Increase in fuel oil stock	(35,294)	(16,450)
Increase in materials and supplies	(829)	(2,382)
Increase in regulatory assets	(5,089)	(14,869)
Increase (decrease) in regulatory liabilities	5,520	(4,716)
Increase in accounts payable	29,624	6,254
Change in prepaid and accrued income taxes, tax credits and utility revenue taxes	(16,080)	(24,802)
Decrease in defined benefit pension and other postretirement benefit plans liability	(1,206)	(1,434)
Change in other assets and liabilities	(7,444)	(14,012)
Net cash provided by operating activities	76,775	31,961
Cash flows from investing activities
Capital expenditures	(76,358)	(70,361)
Other	1,494	1,863
Net cash used in investing activities	(74,864)	(68,498)
Cash flows from financing activities
Common stock dividends	(31,475)	(27,925)
Preferred stock dividends of Hawaiian Electric and subsidiaries	(499)	(499)
Repayment of short-term debt	0	(50,000)
Proceeds from issuance of long-term debt	0	115,000
Net increase in other bank borrowings with original maturities of three months or less	6,000	0
Other	0	(116)
Net cash provided by financing activities	(25,974)	36,460
Net decrease in cash, cash equivalents and restricted cash	(24,063)	(77)
Cash, cash equivalents and restricted cash, beginning of period	55,258	63,326
Cash, cash equivalents and restricted cash, end of period	31,195	63,249
Less: Restricted cash	(2,140)	(11,506)
Cash and cash equivalents, end of period	$ 29,055	$ 51,743