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SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF REGISTRANT - BALANCE SHEETS (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | --- | --- | ---
Assets |  |  |  |
Cash and cash equivalents | $ 261,881 | $ 278,452 | $ 300,478 | $ 175,542
Accounts receivable | 263,209 | 237,950 |  |
Property, plant and equipment, net | 5,025,916 | 4,603,465 |  |
Other assets | 513,535 | 447,621 |  |
Total assets | 13,099,828 | 12,425,506 | 11,782,018 |
Liabilities |  |  |  |
Accounts payable | 193,714 | 143,279 |  |
Long-term debt, net | 1,683,797 | 1,619,019 |  |
Other | 521,018 | 473,512 |  |
Total liabilities | 10,968,149 | 10,324,460 |  |
Shareholders' equity |  |  |  |
Preferred stock, no par value, authorized 10,000,000 shares; issued: none | 0 | 0 |  |
Common stock equity | 1,662,491 | 1,660,910 |  |
Retained earnings | 476,836 | 438,972 |  |
Accumulated other comprehensive loss | (41,941) | (33,129) |  |
Total shareholders’ equity | 2,097,386 | 2,066,753 | 1,927,640 | 1,790,573
Total capitalization and liabilities | $ 13,099,828 | $ 12,425,506 |  |
Preferred stock, authorized shares | 10,000,000 | 10,000,000 |  |
Preferred stock, shares issued | 0 | 0 |  |
Common stock, authorized shares | 200,000,000 | 200,000,000 |  |
Common stock, issued shares | 108,787,807 | 108,583,413 |  |
Common stock, outstanding shares | 108,787,807 | 108,583,413 |  |
Hawaiian Electric Industries, Inc. |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | $ 11,702 | $ 14,924 | $ 55,116 | $ 276
Accounts receivable | 2,347 | 3,788 |  |
Property, plant and equipment, net | 3,910 | 4,143 |  |
Deferred income tax assets | 8,710 | 17,280 |  |
Other assets | 15,480 | 9,858 |  |
Investments in subsidiaries, at equity | 2,466,342 | 2,383,405 |  |
Total assets | 2,508,491 | 2,433,398 |  |
Liabilities |  |  |  |
Accounts payable | 561 | 379 |  |
Interest payable | 2,319 | 1,735 |  |
Notes payable to subsidiaries | 1,918 | 5,373 |  |
Commercial paper | 62,993 | 0 |  |
Short-term borrowings from non-affiliate | 49,953 | 0 |  |
Long-term debt, net | 249,588 | 299,759 |  |
Retirement benefits liability | 31,518 | 33,939 |  |
Other | 12,255 | 25,460 |  |
Total liabilities | 411,105 | 366,645 |  |
Shareholders' equity |  |  |  |
Preferred stock, no par value, authorized 10,000,000 shares; issued: none | 0 | 0 |  |
Common stock equity | 1,662,491 | 1,660,910 |  |
Retained earnings | 476,836 | 438,972 |  |
Accumulated other comprehensive loss | (41,941) | (33,129) |  |
Total shareholders’ equity | 2,097,386 | 2,066,753 |  |
Total capitalization and liabilities | $ 2,508,491 | $ 2,433,398 |  |
Preferred stock, authorized shares | 10,000,000 | 10,000,000 |  |
Preferred stock, shares issued | 0 | 0 |  |
Common stock, authorized shares | 200,000,000 | 200,000,000 |  |
Common stock, issued shares | 108,787,807 | 108,583,413 |  |
Common stock, outstanding shares | 108,787,807 | 108,583,413 |  |

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