Residential rates by utility (EIA-861, average all-in ¢/kWh)
| Utility | 2023 ¢/kWh | 2024 ¢/kWh | Customers (2024) | Ownership | vs state avg, $/yr |
|---|---|---|---|---|---|
| Kauai Island Utility Cooperative | 37.53 | 41.29 | 30,109 | Co-op | -$170 |
| Hawaiian Electric Co Inc | 43.23 | 42.87 | 276,206 | Investor-owned | +$1 |
| Maui Electric Co Ltd | 43.77 | 43.96 | 61,811 | Investor-owned | +$119 |
| Hawaii Electric Light Co Inc | 46.52 | 48.31 | 78,386 | Investor-owned | +$589 |
Average price = residential revenue ÷ residential sales from each utility's federal EIA-861 filing (bundled service — supply + delivery + riders, not a quoted tariff rate). State average = 42.86¢/kWh, volume-weighted across these utilities (2024). Your distribution utility is fixed by address; these gaps measure what households in different territories actually paid. A further 5 competitive suppliers / solar lessors report energy-only or behind-the-meter sales in Hawaii; their prices cover only part of the bill and are not comparable to the all-in figures above.
Can you choose your electric company in Hawaii?
Electric supply choice: no · Gas supply choice: no
Fully regulated.
Official rate information: puc.hawaii.gov.
Heating: which fuel is cheapest per million BTU in Hawaii?
| Fuel | Native price | As of | $ per MMBTU |
|---|---|---|---|
| Utility natural gas | $5.507 /therm | Feb 2026 | 55.07 |
| Electricity (resistance) | 43.00 ¢/kWh | Feb 2026 | 126.03 |
Utility natural gas is the cheapest residential energy per BTU in Hawaii at $55.07/MMBTU. Conversions: 1 kWh = 3,412 BTU; 1 therm = 100,000 BTU; heating oil 138,500 BTU/gal; propane 91,452 BTU/gal. Site-energy prices — appliance efficiency changes delivered-heat cost: a 95% AFUE gas furnace delivers heat near the gas figure, while a heat pump at seasonal COP 2.5–3 cuts the effective electric figure by 60–70%. (No EIA weekly heating-oil survey price for Hawaii.)
Electricity price trend, last 12 months
Hawaii's average residential price went from 42.69¢/kWh in Feb '25 to 43.00¢/kWh in Feb '26 — essentially flat year-over-year. The 12-month peak was 43.00¢ in Feb '26.
| Month | Feb '25 | Mar '25 | Apr '25 | May '25 | Jun '25 | Jul '25 | Aug '25 | Sep '25 | Oct '25 | Nov '25 | Dec '25 | Jan '26 | Feb '26 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ¢/kWh | 42.69 | 41.11 | 42.44 | 41.03 | 40.96 | 39.36 | 38.90 | 39.54 | 39.74 | 40.20 | 41.62 | 39.79 | 43.00 |
Questions people ask
- Who has the cheapest electricity in Hawaii?
- Hawaiian Electric Co Inc, at an average 42.9 cents per kWh for 2024 among Hawaii utilities with at least 50,000 customers (EIA-861). The most expensive, Hawaii Electric Light Co Inc, averaged 48.3 cents — a difference of about $587 per year at 10,800 kWh.
- Can I choose my electric company in Hawaii?
- No. Hawaii is a regulated retail market: your utility is set by address and there is no residential supplier shopping. Rates are set in state utility-commission proceedings (puc.hawaii.gov).
- Is gas or electric heat cheaper in Hawaii?
- Per million BTU of site energy, utility natural gas was $55.07 (Feb 2026) versus $126.03 for electric resistance heat. A heat pump delivering 2.5-3 units of heat per unit of electricity brings electric heating to roughly $42-50 per MMBTU.
- What is the average electric bill in Hawaii?
- At Hawaii's February 2026 average price of 43.00 cents/kWh and typical usage of 900 kWh per month, a household pays about $387 per month ($4644 per year) for electricity. Actual bills vary with usage, utility territory, and tariff.