Consolidated Balance Sheets - HECO (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Other long-term assets
Total assets	$ 9,821,957	$ 9,594,477
Capitalization
Retained earnings	215,626	198,397
Cumulative preferred stock - not subject to mandatory redemption
Commitments and contingencies (Note 5)
Current liabilities
Interest and preferred dividends payable	24,897	25,041
Deferred credits and other liabilities
Deferred income taxes	396,806	354,051
Contributions in aid of construction	381,206	356,203
Total liabilities and shareholders' equity	9,821,957	9,594,477
Hawaiian Electric Company, Inc. and Subsidiaries
Utility plant, at cost
Land	51,537	51,514
Plant and equipment	5,156,323	5,052,027
Less accumulated depreciation	(2,004,465)	(1,966,894)
Construction in progress	172,986	138,838
Net utility plant	3,376,381	3,275,485
Current assets
Cash and cash equivalents	5,937	48,806
Customer accounts receivable, net	200,444	183,328
Accrued unbilled revenues, net	169,879	137,826
Other accounts receivable, net	2,465	8,623
Fuel oil stock, at average cost	207,441	171,548
Materials and supplies, at average cost	50,787	43,188
Prepayments and other	43,401	36,667
Regulatory assets	30,372	20,283
Total current assets	710,726	650,269
Other long-term assets
Regulatory assets	668,076	649,106
Unamortized debt expense	11,267	12,786
Other	91,100	86,361
Total other long-term assets	770,443	748,253
Total assets	4,857,550	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	426,922	426,921
Retained earnings	901,195	881,041
Accumulated other comprehensive income (loss), net of income taxes	120	(32)
Common stock equity	1,423,148	1,402,841
Cumulative preferred stock - not subject to mandatory redemption	34,293	34,293
Long-term debt, net	1,147,653	1,000,570
Total capitalization	2,605,094	2,437,704
Commitments and contingencies (Note 5)
Current liabilities
Short-term borrowings - nonaffiliates	44,242
Current portion of long-term debt		57,500
Accounts payable	206,484	188,580
Interest and preferred dividends payable	19,014	19,483
Taxes accrued	217,321	230,076
Other	55,447	69,353
Total current liabilities	542,508	564,992
Deferred credits and other liabilities
Deferred income taxes	380,484	337,863
Regulatory liabilities	317,958	315,466
Unamortized tax credits	63,437	60,614
Retirement benefits liability	463,630	495,121
Other	103,233	106,044
Total deferred credits and other liabilities	1,328,742	1,315,108
Contributions in aid of construction	381,206	356,203
Total liabilities and shareholders' equity	$ 4,857,550	$ 4,674,007