Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 172,054	$ 261,881
Accounts receivable and unbilled revenues, net	336,309	263,209
Available-for-sale investment securities, at fair value	1,387,571	1,401,198
Held-to-maturity investment securities, at amortized cost	102,498	44,515
Stock in Federal Home Loan Bank, at cost	8,158	9,706
Loans held for investment, net	4,700,232	4,617,131
Loans held for sale, at lower of cost or fair value	1,036	11,250
Property, plant and equipment, net of accumulated depreciation	4,694,101	4,460,248
Regulatory assets	830,924	869,297
Other	596,481	513,535
Goodwill	82,190	82,190
Utility property, plant and equipment
Total property, plant and equipment, net	4,694,101	4,460,248
Current assets
Cash and cash equivalents	172,054	261,881
Other long-term assets
Total assets	12,911,554	12,534,160
Liabilities
Accounts payable	167,192	193,714
Interest and dividends payable	30,280	25,837
Deposit liabilities	6,130,415	5,890,597
Short-term borrowings—other than bank	203,359	117,945
Other bank borrowings	71,110	190,859
Long-term debt, net—other than bank	1,782,242	1,683,797
Deferred income taxes	385,651	388,430
Regulatory liabilities	932,352	880,770
Defined benefit pension and other postretirement benefit plans liability	496,753	509,514
Other	545,862	521,018
Total liabilities	10,745,216	10,402,481
Capitalization
Retained earnings	527,802	476,836
Accumulated other comprehensive loss, net of tax benefits	(63,128)	(41,941)
Total shareholders’ equity	2,132,045	2,097,386
Preferred stock, no par value, authorized 10,000,000 shares; issued: none	0	0
Preferred stock of subsidiaries - not subject to mandatory redemption	34,293	34,293
Commitments and contingencies
Current liabilities
Interest and dividends payable	30,280	25,837
Deferred credits and other liabilities
Deferred income taxes	385,651	388,430
Shareholders’ equity
Preferred stock, no par value, authorized 10,000,000 shares; issued: none	0	0
Common stock, no par value, authorized 200,000,000 shares; issued and outstanding: 108,879,245 shares and 108,787,807 shares at September 30, 2018 and December 31, 2017, respectively	1,667,371	1,662,491
Retained earnings	527,802	476,836
Accumulated other comprehensive loss, net of tax benefits	(63,128)	(41,941)
Total shareholders’ equity	2,132,045	2,097,386
Total liabilities and shareholders’ equity	12,911,554	12,534,160
Hawaiian Electric Company, Inc. and Subsidiaries
Assets
Cash and cash equivalents	7,224	12,517
Property, plant and equipment, net of accumulated depreciation	4,406,519	4,248,539
Utility property, plant and equipment
Land	53,515	53,177
Plant and equipment	6,720,046	6,401,040
Less accumulated depreciation	(2,567,708)	(2,476,352)
Construction in progress	193,086	263,094
Utility property, plant and equipment, net	4,398,939	4,240,959
Nonutility property, plant and equipment, less accumulated depreciation	7,580	7,580
Total property, plant and equipment, net	4,406,519	4,248,539
Current assets
Cash and cash equivalents	7,224	12,517
Customer accounts receivable, net	178,785	127,889
Accrued unbilled revenues, net	127,702	107,054
Other accounts receivable, net	3,378	7,163
Fuel oil stock, at average cost	91,822	86,873
Materials and supplies, at average cost	58,507	54,397
Prepayments and other	60,732	25,355
Regulatory assets	89,430	88,390
Total current assets	617,580	509,638
Other long-term assets
Regulatory assets	741,494	780,907
Other	116,534	91,529
Total other long-term assets	858,028	872,436
Total assets	5,882,127	5,630,613
Liabilities
Interest and dividends payable	28,258	22,575
Deferred income taxes	401,069	394,041
Capitalization
Common stock ($6 2/3 par value, authorized 50,000,000 shares; outstanding 16,142,216 shares at September 30, 2018 and December 31, 2017)	107,634	107,634
Premium on capital stock	614,667	614,675
Retained earnings	1,155,070	1,124,193
Accumulated other comprehensive loss, net of tax benefits	(1,134)	(1,219)
Total shareholders’ equity	1,876,237	1,845,283
Preferred stock, no par value, authorized 10,000,000 shares; issued: none	34,293	34,293
Long-term debt, net	1,418,631	1,318,516
Total capitalization	3,329,161	3,198,092
Commitments and contingencies
Current liabilities
Current portion of long-term debt	49,993	49,963
Short-term borrowings from non-affiliates	85,913	4,999
Accounts payable	122,932	159,610
Interest and dividends payable	28,258	22,575
Taxes accrued, including revenue taxes	195,776	199,101
Regulatory liabilities	10,159	3,401
Other	81,054	59,456
Total current liabilities	574,085	499,105
Deferred credits and other liabilities
Deferred income taxes	401,069	394,041
Regulatory liabilities	922,193	877,369
Unamortized tax credits	93,073	90,369
Defined benefit pension and other postretirement benefit plans liability	460,279	472,948
Other	102,267	98,689
Total deferred credits and other liabilities	1,978,881	1,933,416
Shareholders’ equity
Preferred stock, no par value, authorized 10,000,000 shares; issued: none	34,293	34,293
Retained earnings	1,155,070	1,124,193
Accumulated other comprehensive loss, net of tax benefits	(1,134)	(1,219)
Total shareholders’ equity	1,876,237	1,845,283
Total liabilities and shareholders’ equity	$ 5,882,127	$ 5,630,613