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Maui windstorm and wildfires (Tables)
 9 Months Ended
Sep. 30, 2025
Unusual or Infrequent Items, or Both [Abstract]  
Schedule of Windstorm and Wildfire Expenses
See table below for the incremental expenses related to the Maui windstorm and wildfires.
Three months ended September 30, 2025Nine months ended September 30, 2025
(in thousands)Electric utilityHEI ConsolidatedElectric utilityHEI Consolidated
Maui windstorm and wildfires related expenses:
Legal expenses$4,316 $5,794 $12,469 $20,532 
Wildfire securities-related claims
— 47,750 — 47,750 
Other expense5,922 6,290 19,821 21,113 
Total Maui windstorm and wildfires related expenses10,238 59,834 32,290 89,395 
Insurance recoveries1
(430)(49,070)126 (53,374)
Deferral treatment approved by the PUC2
(6,237)(6,237)(21,809)(21,809)
Total Maui windstorm and wildfires related expenses, net of insurance recoveries and approved deferral treatment$3,571 $4,527 $10,607 $14,212 
Three months ended September 30, 2024Nine months ended September 30, 2024
(in thousands)Electric utility
HEI Consolidated3
Electric utility
HEI Consolidated3
Maui windstorm and wildfires related expenses:
Legal expenses$11,821 $17,205 $40,169 $56,330 
Wildfire tort-related claims
203,000 203,000 1,915,000 1,915,000 
Other expense13,429 15,299 36,523 42,244 
Total Maui windstorm and wildfires related expenses228,250 235,504 1,991,692 2,013,574 
Insurance recoveries(49,625)(52,158)(75,973)(83,610)
Deferral treatment approved by the PUC2
(8,589)(8,589)(24,143)(24,143)
Total Maui windstorm and wildfires related expenses, net of insurance recoveries and approved deferral treatment$170,036 $174,757 $1,891,576 $1,905,821 
1    HEI consolidated includes insurance recovery related to the proposed settlement of the securities class action of $47.8 million for the three and nine months ended September 30, 2025. Also includes adjustments related to costs that are no longer probable of recovery under the insurance policies. For the three and nine months ended September 30, 2025, HEI consolidated and Electric utility adjustments amount to $1.0 million and $7.6 million, respectively, of which, $0.5 million and $4.5 million were deferred to a regulatory asset, respectively, and are reported on line “Deferral treatment approved by the PUC.”
2 Related to the PUC’s order, received on December 27, 2023, approving deferred accounting treatment for the Utilities’ incremental non-labor expenses related to the August 2023 Maui windstorm and wildfires incurred through December 31, 2024. Pursuant to the PUC order received on February 12, 2025, deferral accounting treatment limited to insurance premiums and outside services and legal costs associated with the asset-based lending facility credit agreement incurred in 2025 was granted. Applicable amounts were deferred to a regulatory asset.
3    Excludes expenses related to discontinued operations amounting to $0.9 million and $1.2 million for the three and nine months ended September 30, 2024, respectively.