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Hawaiian Electric Co Inc: what its customers actually pay

Data as of: EIA-861 annual 2024 (released 2025) · EIA monthly state prices February 2026 · EIA weekly heating-fuel survey Mar 30, 2026 · retail-choice registry reviewed Jun 2026 · URDB tariffs pulled Jun 2026. Page generated 2026-06-12.

Hawaiian Electric Co Inc residential customers paid an average of 42.87¢/kWh in 2024in line with the Hawaii average of 42.86¢/kWh (EIA-861). It served 276,206 residential customers across 1 HI county. Territories are fixed by address, but the cheapest nearby utility, Kauai Island Utility Cooperative (41.29¢), works out about $171/yr less at 10,800 kWh/yr.

How Hawaiian Electric Co compares with Hawaii's largest utilities

Largest bundled utilities in Hawaii — average residential ¢/kWh (EIA-861 2024) and annual cost difference vs Hawaiian Electric Co at 10,800 kWh/yr
Utility2024 ¢/kWhCustomersΔ vs Hawaiian Electric Co, ¢/kWh$/yr difference
Kauai Island Utility Cooperative 41.29 30,109 -1.59 -$171
Hawaiian Electric Co Inc (this page) 42.87 276,206
Maui Electric Co Ltd 43.96 61,811 +1.09 +$118
Hawaii Electric Light Co Inc 48.31 78,386 +5.44 +$587

Hawaiian Electric Co files no county-level territory with EIA, so this table benchmarks against the state's largest utilities. Positive $/yr = that utility's customers pay more than Hawaiian Electric Co customers at the same usage. Territories are fixed by address — these gaps measure cost differences between areas, not options you can pick between.

Where Hawaiian Electric Co customers pay more (county benchmark)

Counties served by Hawaiian Electric Co Inc: cheapest bundled utility operating in the same county and the annual difference at 10,800 kWh/yr (EIA-861 2024)
CountyCheapest utility in countyTheir ¢/kWhHawaiian Electric Co premium, $/yr
HonoluluKauai Island Utility Cooperative41.29 +$171

Multiple utilities in one county means adjoining territories, not household choice — you cannot switch wires companies.

Rate trend and size

Hawaiian Electric Co Inc residential average price and customers, EIA-861 2023 vs 2024
Metric20232024Change
Average price, ¢/kWh43.2342.87-0.8%
Residential customers275,654276,206+0.2%

Ownership: Investor Owned. Statewide context: Hawaii electricity rates.

Supply vs delivery on a Hawaiian Electric Co bill

Hawaii is a regulated retail market — Hawaiian Electric Co customers cannot choose a different supplier; rates are set in utility-commission proceedings. Official information: puc.hawaii.gov.

Counties served (HI, EIA-861 2024)

Honolulu

Questions people ask

Is Hawaiian Electric Co Inc more expensive than other Hawaii utilities?
Hawaiian Electric Co Inc customers paid an average 42.87 cents/kWh in 2024 — in line with the Hawaii volume-weighted average of 42.86 cents (EIA-861, bundled residential service).
Can I switch away from Hawaiian Electric Co Inc?
No — distribution territory is fixed by address and Hawaii has no residential supplier shopping. Rate changes go through the state utility commission (puc.hawaii.gov).
How many customers does Hawaiian Electric Co Inc have?
276,206 residential customers in Hawaii in 2024, per its EIA-861 federal filing. Ownership type: investor-owned.
About these numbers. Rates shown are averages computed from federal regulatory filings (EIA Form 861) and public tariff databases — confirm with your utility before making decisions; your actual rate depends on your tariff, usage, and riders. Distribution utility is determined by address and generally cannot be chosen; in retail-choice states you may choose your supplier for the supply portion of the bill. Savings figures use 10,800 kWh/yr (US average residential usage) and are estimates, not quotes. EnergySavings is an independent data project by CertiHomes and is not affiliated with any utility, supplier, or government agency.