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v3.25.1

Shareholders' equity | 3 Months Ended
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Mar. 31, 2025
Equity [Abstract] |
Shareholders' equity | Shareholders' equity Accumulated other comprehensive income/(loss). Changes in the balances of each component of accumulated other comprehensive income/(loss) (AOCI) were as follows:
| HEI Consolidated |  | Hawaiian Electric Consolidated
(in thousands) | Net unrealized gains (losses) on securities |  | Unrealized gains (losses) on derivatives |  | Retirement benefit plans |  | AOCI |  | AOCI-Retirement benefit plans
Balance, December 31, 2024 | $ | — |  |  | $ | 2,120 |  |  | $ | 1,341 |  |  | $ | 3,461 |  |  | $ | 2,786 |
Current period other comprehensive loss | — |  |  | (438) |  |  | (22) |  |  | (460) |  |  | (47) |
Balance, March 31, 2025 | $ | — |  |  | $ | 1,682 |  |  | $ | 1,319 |  |  | $ | 3,001 |  |  | $ | 2,739 |
Balance, December 31, 2023 | $ | (282,963) |  |  | $ | 1,638 |  |  | $ | (8,025) |  |  | $ | (289,350) |  |  | $ | 2,849 |
Current period other comprehensive income (loss) | (10,503) |  |  | 692 |  |  | 10 |  |  | (9,801) |  |  | (49) |
Balance, March 31, 2024 | $ | (293,466) |  |  | $ | 2,330 |  |  | $ | (8,015) |  |  | $ | (299,151) |  |  | $ | 2,800 |
Reclassifications out of AOCI were as follows:
|  |  |  |  |  | Amount reclassified from AOCI |  | Affected line item in the Statements of Income / Balance Sheets
|  |  |  | Three months ended March 31 |
(in thousands) |  |  |  |  |  | 2025 |  | 2024 |
HEI consolidated |  |  |  |  |  |  |  |  |  |
Amortization of unrealized holding losses on held-to-maturity securities |  |  |  |  |  | $ | — |  |  | $ | 3,086 |  |  | Assets of discontinued operations
Net realized gains on derivatives qualifying as cash flow hedges |  |  |  |  |  | (50) |  |  | (48) |  |  | Interest expense
Retirement benefit plans: |  |  |  |  |  |  |  |  |  |
Amortization of prior service credit and net gains recognized during the period in net periodic benefit cost |  |  |  |  |  | (505) |  |  | (449) |  |  | See Note 8 for additional details
Impact of D&Os of the PUC included in regulatory assets |  |  |  |  |  | 483 |  |  | 459 |  |  | See Note 8 for additional details
Total reclassifications |  |  |  |  |  | $ | (72) |  |  | $ | 3,048 |  |  |
Hawaiian Electric consolidated |  |  |  |  |  |  |  |
Retirement benefit plans: |  |  |  |  |  |  |  |  |  |
Amortization of prior service credit and net gains recognized during the period in net periodic benefit cost |  |  |  |  |  | $ | (530) |  |  | $ | (508) |  |  | See Note 8 for additional details
Impact of D&Os of the PUC included in regulatory assets |  |  |  |  |  | 483 |  |  | 459 |  |  | See Note 8 for additional details
Total reclassifications |  |  |  |  |  | $ | (47) |  |  | $ | (49) |  |  |

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