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SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF REGISTRANT (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Expenses |  |  |  |  |  |  |  |  |  |  |
Depreciation of property, plant and equipment |  |  |  |  |  |  |  |  | $ 160,061 | $ 150,389 | $ 148,152
Interest expense |  |  |  |  |  |  |  |  | 85,556 | 89,443 | 96,575
Income before income taxes |  |  |  |  |  |  |  |  | 247,747 | 217,407 | 216,052
Income tax benefits |  |  |  |  |  |  |  |  | (84,341) | (76,859) | (75,932)
Net income | 39,486 | 48,707 | 41,061 | 34,152 | 14,309 | 48,177 | 39,273 | 38,789 | 163,406 | 140,548 | 140,120
Hawaiian Electric Industries, Inc. |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 288 | 221 | 253
Equity in income of subsidiaries |  |  |  |  |  |  |  |  | 180,359 | 157,883 | 158,722
Expenses |  |  |  |  |  |  |  |  |  |  |
Operating, administrative and general |  |  |  |  |  |  |  |  | 16,063 | 16,191 | 15,401
Depreciation of property, plant and equipment |  |  |  |  |  |  |  |  | 596 | 672 | 227
Taxes, other than income taxes |  |  |  |  |  |  |  |  | 497 | 421 | 409
Interest expense |  |  |  |  |  |  |  |  | 16,207 | 16,695 | 22,013
Income before income taxes |  |  |  |  |  |  |  |  | 147,284 | 124,125 | 120,925
Income tax benefits |  |  |  |  |  |  |  |  | 14,232 | 14,533 | 17,305
Net income |  |  |  |  |  |  |  |  | $ 161,516 | $ 138,658 | $ 138,230

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