Condensed Consolidated Statements of Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues
Total revenues	$ 645,874	$ 591,562
Expenses
Purchased power	140,000	127,000
Total expenses	573,985	521,824
Operating income (loss)
Total operating income	71,889	69,738
Retirement defined benefits expense—other than service costs	(1,833)	(1,876)
Interest expense, net—other than on deposit liabilities and other bank borrowings	(21,518)	(19,568)
Allowance for borrowed funds used during construction	1,444	889
Allowance for equity funds used during construction	3,294	2,399
Income before income taxes	53,276	51,582
Income taxes	12,556	16,916
Net income	40,720	34,666
Preferred stock dividends of subsidiaries	473	473
Net income for common stock	$ 40,247	$ 34,193
Basic earnings per common share (in dollars per share)	$ 0.37	$ 0.31
Diluted earnings per common share (in dollars per share)	0.37	0.31
Dividends declared per common share (in dollars per share)	$ 0.31	$ 0.31
Weighted-average number of common shares outstanding (in shares)	108,818	108,674
Net effect of potentially dilutive shares (in shares)	206	184
Weighted-average shares assuming dilution (in shares)	109,024	108,858
Hawaiian Electric Company, Inc. and Subsidiaries
Revenues
Total revenues	$ 570,427	$ 518,611
Expenses
Fuel oil	166,968	144,270
Purchased power	139,910	127,124
Other operation and maintenance	107,610	98,817
Depreciation	50,466	48,216
Taxes, other than income taxes	54,104	49,823
Total expenses	519,058	468,250
Operating income (loss)
Total operating income	51,369	50,361
Retirement defined benefits expense—other than service costs	(1,264)	(1,423)
Allowance for borrowed funds used during construction	1,444	889
Allowance for equity funds used during construction	3,294	2,399
Interest expense and other charges, net	(17,694)	(17,504)
Income before income taxes	37,149	34,722
Income taxes	9,175	12,758
Net income	27,974	21,964
Preferred stock dividends of subsidiaries	229	229
Net income attributable to Hawaiian Electric	27,745	21,735
Preferred stock dividends of Hawaiian Electric	270	270
Net income for common stock	27,475	21,465
Electric utility
Revenues
Total revenues	570,427	518,611
Expenses
Total expenses	519,058	468,250
Operating income (loss)
Total operating income	51,369	50,361
Income before income taxes	37,149	34,722
Income taxes	9,175	12,758
Net income	27,974	21,964
Preferred stock dividends of subsidiaries	499	499
Net income for common stock	27,475	21,465
Bank
Revenues
Total revenues	75,419	72,856
Expenses
Total expenses	50,532	48,501
Operating income (loss)
Total operating income	24,887	24,355
Income before income taxes	24,500	24,160
Income taxes	5,540	8,347
Net income	18,960	15,813
Preferred stock dividends of subsidiaries	0	0
Net income for common stock	18,960	15,813
Other
Revenues
Total revenues	28	95
Expenses
Total expenses	4,395	5,073
Operating income (loss)
Total operating income	(4,367)	(4,978)
Income before income taxes	(8,373)	(7,300)
Income taxes	(2,159)	(4,189)
Net income	(6,214)	(3,111)
Preferred stock dividends of subsidiaries	(26)	(26)
Net income for common stock	$ (6,188)	$ (3,085)