Consolidated Balance Sheets - HECO (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Other long-term assets
Total assets	$ 9,904,827	$ 9,594,477
Capitalization
Retained earnings	233,218	198,397
Cumulative preferred stock - not subject to mandatory redemption
Commitments and contingencies (Note 5)
Current liabilities
Interest and preferred dividends payable	27,907	25,041
Deferred credits and other liabilities
Deferred income taxes	438,886	354,051
Contributions in aid of construction	387,863	356,203
Total liabilities and shareholders' equity	9,904,827	9,594,477
Hawaiian Electric Company, Inc. and Subsidiaries
Utility plant, at cost
Land	51,544	51,514
Plant and equipment	5,245,769	5,052,027
Less accumulated depreciation	(2,026,450)	(1,966,894)
Construction in progress	176,216	138,838
Net utility plant	3,447,079	3,275,485
Current assets
Cash and cash equivalents	15,722	48,806
Customer accounts receivable, net	226,933	183,328
Accrued unbilled revenues, net	132,090	137,826
Other accounts receivable, net	1,925	8,623
Fuel oil stock, at average cost	202,920	171,548
Materials and supplies, at average cost	50,493	43,188
Prepayments and other	64,006	36,667
Regulatory assets	25,103	20,283
Total current assets	719,192	650,269
Other long-term assets
Regulatory assets	690,891	649,106
Unamortized debt expense	10,786	12,786
Other	93,767	86,361
Total other long-term assets	795,444	748,253
Total assets	4,961,715	4,674,007
Capitalization
Common stock ($6 2/3 par value, authorized 50,000,000 shares; outstanding 14,233,723 shares)	94,911	94,911
Premium on capital stock	426,921	426,921
Retained earnings	921,309	881,041
Accumulated other comprehensive income (loss), net of income taxes	197	(32)
Common stock equity	1,443,338	1,402,841
Cumulative preferred stock - not subject to mandatory redemption	34,293	34,293
Long-term debt, net	1,147,869	1,000,570
Total capitalization	2,625,500	2,437,704
Commitments and contingencies (Note 5)
Current liabilities
Short-term borrowings - nonaffiliates	44,719
Current portion of long-term debt		57,500
Accounts payable	211,999	188,580
Interest and preferred dividends payable	22,458	19,483
Taxes accrued	235,302	230,076
Other	62,584	69,353
Total current liabilities	577,062	564,992
Deferred credits and other liabilities
Deferred income taxes	420,724	337,863
Regulatory liabilities	319,330	315,466
Unamortized tax credits	64,178	60,614
Retirement benefits liability	463,599	495,121
Other	103,459	106,044
Total deferred credits and other liabilities	1,371,290	1,315,108
Contributions in aid of construction	387,863	356,203
Total liabilities and shareholders' equity	$ 4,961,715	$ 4,674,007