Note 17 · Fair value measurements
Fair value measurement and disclosure valuation methodology. The following are descriptions of the valuation methodologies used for assets and liabilities recorded at fair value and for estimating fair value for financial instruments not carried at fair value:
Money market mutual funds. The Company considers all liquid investments purchased with an initial maturity of three months or less and deposits in money market mutual funds that are readily convertible into cash to be cash equivalents. The carrying value of cash and cash equivalents approximates fair value due to the short-term nature of these instruments.
Short-term borrowings.  The carrying amount of short-term borrowings approximated fair value because of the short maturity of these instruments.
Long-term debt.  Fair value of fixed-rate long-term debt was obtained from third-party financial services providers based on the current rates offered for debt of the same or similar remaining maturities and from discounting the future cash flows using the current rates offered for debt of the same or similar risks, terms, and remaining maturities. The carrying amount of floating rate long-term debt approximated fair value because of the short-term interest reset periods. Long-term debt is classified in Level 2 of the valuation hierarchy.
Interest rate swaps. The Company measures its interest rate swaps at fair value. The fair values of the Company's interest rate swaps are based on the estimated amounts that the Company would receive or pay to terminate the contracts at the reporting date and are determined using interest rate pricing models and interest rate related observable inputs. The fair values of the Company's interest rate swaps are classified as a Level 2 measurements.
The sale of solar and BESS facilities (See Note 3) included variable interest rate debt assumed by the buyer as part of the transaction. As a result of the sale, the interest rate swap agreements that had been designated as cash flow hedges of interest payments were terminated. The derivatives had a notional amount of $28 million and a fair value of $1.0 million at termination. $0.8 million, net of taxes, was reclassified from other comprehensive income to earnings. The terminated swaps were previously classified as Level 2 instruments under the fair value hierarchy. Derivatives measured at fair value on a recurring basis were previously included in “Other noncurrent assets” and “Other noncurrent liabilities” in the Consolidated Balance Sheets.
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
amount
Quoted prices in active markets for identical assets
 (Level 1)
Significant other observable inputs
(Level 2)
Total
December 31, 2025    
Financial assets    
HEI consolidated
Money market mutual funds$839,380 $839,380 $— $839,380 
Hawaiian Electric consolidated
Money market mutual funds
345,510 345,510 — 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 
December 31, 2024    
Financial assets    
HEI consolidated
Money market mutual funds
$1,162,259 $1,162,259 $— $1,162,259 
Derivative assets2
29,312 — 1,629 1,629 
Hawaiian Electric consolidated
Money market mutual funds
115,599 115,599 — 115,599 
Financial liabilities    
HEI consolidated
Short-term borrowings
48,623 — 48,623 48,623 
Long-term debt, net
2,799,558 — 2,196,403 2,196,403 
Hawaiian Electric consolidated
Short-term borrowings
48,623 — 48,623 48,623 
Long-term debt, net
1,901,214 — 1,446,316 1,446,316 
1    Carrying or notional amount does not include $51.6 million related to Mahipapa long term debt, net which is included in liabilities held for sale as of December 31, 2025. See Note 3 for more information.
2     Amounts relate to derivatives which were included in Pacific Current’s Solar Asset Disposition. See Note 3 for more information.
Assets and liabilities measured at fair value on a recurring basis include money market mutual funds and derivative assets as included in the table above. Money market mutual funds are included in “Cash and cash equivalents” and “Restricted cash” in the Consolidated Balance Sheets. Derivatives assets are included in “Other noncurrent assets” in the Consolidated Balance Sheets.
There were no transfers of financial assets and liabilities between Level 1 and Level 2 of the fair value hierarchy during the years ended December 31, 2025 and 2024.

Historical Timeline

Fiscal YearFiled
2025Feb 27, 2026Showing above
2024Feb 24, 2025
2023Feb 29, 2024
2022Feb 27, 2023
2021Feb 25, 2022
2020Feb 26, 2021
2019Feb 28, 2020
2018Feb 28, 2019
2017Mar 1, 2018
2016Feb 24, 2017
2015Feb 23, 2016

About Fair Value Disclosures

Fair value disclosures classify all assets and liabilities measured at fair value into a three-level hierarchy: Level 1 (quoted market prices), Level 2 (observable inputs like yield curves), and Level 3 (unobservable inputs requiring management estimates). The proportion of Level 3 assets directly reflects how much of the balance sheet depends on internal models rather than market evidence.

Key signals: a growing Level 3 balance relative to total fair-value assets increases valuation uncertainty and earnings volatility risk. Watch for transfers between levels — assets moving from Level 2 to Level 3 often signal deteriorating market liquidity. Unrealized gains and losses on Level 3 positions flow through earnings or other comprehensive income, so large swings deserve scrutiny. For financial institutions, examine the sensitivity disclosures that show how Level 3 valuations change under alternative assumptions. Compare the fair value of debt against its carrying amount to gauge hidden leverage.