Electricity rates in Hawaii: 43.51¢ per kWh
Homes in Hawaii paid an average of 43.51¢ per kilowatt-hour from August 2025 to July 2026, 142% above the U.S. average of 17.99¢. No state or D.C. pays more per kilowatt-hour; California is next at 32.99¢.
The average Hawaii home used 514 kWh a month — the second-least of the 51 — so its typical bill came to $224 a month, the highest. At the national rate the same 514 kWh would cost $131 less a month.
In July 2026, the latest month published, the Hawaii rate was 48.00¢.
| Rank | State | Average rate | Latest month | Average home use | Average bill |
|---|---|---|---|---|---|
| 1 | Hawaii | 43.51¢ | 48.00¢ | 514 kWh/mo | $224/mo |
| 2 | California | 32.99¢ | 33.61¢ | 488 kWh/mo | $161/mo |
| 3 | Massachusetts | 30.43¢ | 30.49¢ | 599 kWh/mo | $182/mo |
What a month of electricity costs in Hawaii
At 43.51¢ per kWh, every extra 100 kWh a month adds $43.51 to the monthly bill and $522 to the year. The table runs from half to twice the Hawaii average home's 514 kWh, using the same calculation as the calculator above.
| Monthly use | Per month | Per year | vs. U.S. rate (17.99¢) |
|---|---|---|---|
| 250 kWh (half the average) | $109 | $1,305 | +$64 |
| 514 kWh (state average) | $224 | $2,684 | +$131 |
| 750 kWh (1.5× the average) | $326 | $3,916 | +$191 |
| 1,050 kWh (twice the average) | $457 | $5,482 | +$268 |
Hawaii electricity through the year
The average Hawaii home's bill peaked at about $262 in July 2026 and was lowest, about $181, in February 2026. Use ran from 422 kWh in February 2026 to 573 kWh in August 2025, 1.4 times as much.
The rate moved too, from 38.90¢ in August 2025 to 52.72¢ in June 2026. A monthly rate includes that month's fuel and seasonal charges, which is why the calculator uses the 12-month average for a yearly estimate.
| Month | Rate | Use per home | Bill per home |
|---|---|---|---|
| Aug 2025 | 38.90¢ | 573 kWh | $223 |
| Sep 2025 | 39.54¢ | 543 kWh | $215 |
| Oct 2025 | 39.74¢ | 553 kWh | $220 |
| Nov 2025 | 40.20¢ | 520 kWh | $209 |
| Dec 2025 | 41.62¢ | 533 kWh | $222 |
| Jan 2026 | 39.79¢ | 559 kWh | $222 |
| Feb 2026 | 43.00¢ | 422 kWh | $181 |
| Mar 2026 | 42.23¢ | 485 kWh | $205 |
| Apr 2026 | 46.62¢ | 477 kWh | $222 |
| May 2026 | 52.00¢ | 480 kWh | $250 |
| Jun 2026 | 52.72¢ | 482 kWh | $254 |
| Jul 2026 | 48.00¢ | 546 kWh | $262 |
Largest electricity providers in Hawaii
Among the 4 largest providers listed, average residential rates in 2024 ran from 41.29¢ at Kauai Island Utility Cooperative to 48.31¢ at Hawaii Electric Light Co Inc. On the average Hawaii home's 514 kWh that is a difference of $36 a month.
These are 2024 figures, the latest final year. The Hawaii average was 42.86¢ that year and 43.51¢ over the last 12 months, up 2% — compare the providers with each other, not with today's average.
Together they serve 100% of Hawaii's 446,512 residential customers. The rates are each company's residential revenue divided by kilowatt-hours sold, so customer charges are included; a plan or tier can still differ.
| Provider | Type | Homes served | Average rate | Use per home |
|---|---|---|---|---|
| Hawaiian Electric Co Inc | Investor-owned | 276,206 | 42.87¢ | 454 kWh/mo |
| Hawaii Electric Light Co Inc | Investor-owned | 78,386 | 48.31¢ | 455 kWh/mo |
| Maui Electric Co Ltd | Investor-owned | 61,811 | 43.96¢ | 488 kWh/mo |
| Kauai Island Utility Cooperative | Cooperative | 30,109 | 41.29¢ | 536 kWh/mo |