v3.26.1
Fair value measurements (Tables)
 6 Months Ended
Jun. 30, 2026
Fair Value Disclosures [Abstract]  
Schedule of Carrying or Notional Amount, Fair Value and Placement in the Fair Value Hierarchy of the Company’s Financial Instruments
The following table presents the carrying or notional amount, fair value and placement in the fair value hierarchy of the Company’s financial instruments.
Estimated fair value
(in thousands)Carrying or notional amountQuoted prices in
active markets
for identical assets
 (Level 1)		Significant
 other observable
 inputs
 (Level 2)		Total
June 30, 2026
Financial assets
HEI consolidated
Money market mutual funds$112,805 $112,805 $— $112,805 
Hawaiian Electric consolidated
Money market mutual funds60,731 60,731 — 60,731 
Financial liabilities
HEI consolidated
Long-term debt, net1
2,265,630 — 1,893,513 1,893,513 
Hawaiian Electric consolidated
Long-term debt, net 2,058,431 — 1,714,930 1,714,930 
December 31, 2025
Financial assets
HEI consolidated
Money market mutual funds$839,380 $839,380 $— $839,380 
Hawaiian Electric consolidated
Money market mutual funds345,510 345,510 — 345,510 
Financial liabilities
HEI consolidated
Long-term debt, net1
2,409,975 — 2,098,593 2,098,593 
Hawaiian Electric consolidated
Long-term debt, net 2,182,833 — 1,895,680 1,895,680 
1    Carrying or notional amount does not include $52 million related to Mahipapa long term debt, net which is included in “Liabilities held for sale” in HEI’s Condensed Consolidated Balance Sheets as of June 30, 2026 and December 31, 2025. See Note 3 for more information.