Consolidated Statements of Cash Flows - HECO (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities
Net income	$ 78,062	$ 56,547
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Depreciation of property, plant and equipment	75,517	75,243
Other amortization	2,999	11,965
Change in deferred income taxes	41,541	39,051
Allowance for equity funds used during construction	(3,937)	(2,561)
Change in cash overdraft		(2,305)
Changes in assets and liabilities
Increase in fuel oil stock	(35,893)	(6,509)
Change in prepaid and accrued income taxes and utility revenue taxes	(12,998)	8,333
Contributions to defined benefit pension and other postretirement benefit plans	(53,356)	(37,556)
Change in other assets and liabilities	(62,910)	(7,352)
Net cash provided by (used in) operating activities	(3,572)	55,181
Cash flows from investing activities
Capital expenditures	(145,263)	(89,088)
Contributions in aid of construction	26,981	8,153
Other		(2,911)
Net cash used in investing activities	(188,313)	(214,220)
Cash flows from financing activities
Common stock dividends	(47,851)	(47,331)
Proceeds from issuance of long-term debt	417,000	125,000
Repayment of long-term debt	(328,500)	(50,000)
Net increase in short-term borrowings from nonaffiliates and affiliate with original maturities of three months or less	27,419	(24,923)
Other	(2,055)	(172)
Net cash provided by financing activities	129,169	95,134
Net decrease in cash and cash equivalents	(62,716)	(63,905)
Hawaiian Electric Company, Inc. and Subsidiaries
Cash flows from operating activities
Net income	57,674	37,211
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Depreciation of property, plant and equipment	72,615	72,690
Other amortization	2,770	10,833
Change in deferred income taxes	42,524	33,456
Change in tax credits, net	2,880	1,556
Allowance for equity funds used during construction	(3,937)	(2,561)
Change in cash overdraft		(2,305)
Changes in assets and liabilities
Increase in accounts receivable	(10,958)	(33,312)
Increase in accrued unbilled revenues	(32,053)	(18,479)
Increase in fuel oil stock	(35,893)	(6,509)
Increase in materials and supplies	(7,599)	(1,490)
Increase in regulatory assets	(35,476)	(14,498)
Increase (decrease) in accounts payable	5,931	(48,288)
Change in prepaid and accrued income taxes and utility revenue taxes	(21,141)	12,178
Contributions to defined benefit pension and other postretirement benefit plans	(52,086)	(37,021)
Change in other assets and liabilities	(6,776)	12,596
Net cash provided by (used in) operating activities	(21,525)	16,057
Cash flows from investing activities
Capital expenditures	(141,618)	(85,395)
Contributions in aid of construction	26,981	8,153
Other		77
Net cash used in investing activities	(114,637)	(77,165)
Cash flows from financing activities
Common stock dividends	(36,522)	(35,279)
Preferred stock dividends of HECO and subsidiaries	(998)	(998)
Proceeds from issuance of long-term debt	417,000
Repayment of long-term debt	(328,500)
Net increase in short-term borrowings from nonaffiliates and affiliate with original maturities of three months or less	44,242
Other	(1,929)	(17)
Net cash provided by financing activities	93,293	(36,294)
Net decrease in cash and cash equivalents	(42,869)	(97,402)
Cash and cash equivalents, beginning of period	48,806	122,936
Cash and cash equivalents, end of period	$ 5,937	$ 25,534