Hawaiian Electric Co Inc Electricity Rates and Average Bill (Hawaii)
Data through May 2026 (the latest month EIA has published) · Updated August 14, 2026
As of May 2026, Hawaiian Electric Co Inc's residential customers in Hawaii paid an average effective rate of 55.09¢/kWh with an average monthly bill of $238.07, per EIA Form 861-M data. That rate is 3.1¢ above the Hawaii average of 52.00¢/kWh; the U.S. average is 18.44¢/kWh.
Rate trend vs the Hawaii average
View this chart as a table (last 12 months)
| Month | Rate (¢/kWh) | Avg bill ($/mo) | Avg usage (kWh/mo) |
|---|---|---|---|
| June 2025 | 41.96 | 177.36 | 423 |
| July 2025 | 40.12 | 192.97 | 481 |
| August 2025 | 38.99 | 206.81 | 530 |
| September 2025 | 39.03 | 201.75 | 517 |
| October 2025 | 38.83 | 203.91 | 525 |
| November 2025 | 39.61 | 192.92 | 487 |
| December 2025 | 39.54 | 199.42 | 504 |
| January 2026 | 38.64 | 206.01 | 533 |
| February 2026 | 42.39 | 159.17 | 376 |
| March 2026 | 42.45 | 185.82 | 438 |
| April 2026 | 48.40 | 205.47 | 425 |
| May 2026 | 55.09 | 238.07 | 432 |
Hawaiian Electric Co Inc vs Hawaii vs the U.S.
| Hawaiian Electric Co Inc | Hawaii | U.S. average | |
|---|---|---|---|
| Rate (May 2026) | 55.09¢/kWh | 52.00¢/kWh | 18.44¢/kWh |
| Average monthly bill | $238.07 | $249.55 | $135.70 |
| Average monthly usage | 432 kWh | 480 kWh | 736 kWh |
| Rate change, 1 year | +34.7% | +26.7% | +6.2% |
Estimate a bill at Hawaiian Electric Co Inc rates
Worked example: 1,000 kWh at Hawaiian Electric Co Inc's average effective rate of 55.09¢/kWh is about $550.90. The utility's actual average usage is 432 kWh/month, which produces the $238.07 average bill. This is an all-in average (energy, delivery, fixed charges, riders); your tariff's marginal price will differ.
See the full Hawaii rate trend, look up another utility by ZIP code, or read why electric bills are rising.
Source: EIA Form 861-M (monthly utility-level sales to ultimate customers, residential), published with roughly a two-month lag. Rate = revenue ÷ sales; bill = revenue ÷ customers. Months failing basic sanity screens are excluded. See methodology.