Hawaii · Cooperative
Kauai Island Utility Cooperative
38.43¢ per kWh, bundled, EIA-861 2025. Average bill $212.58 at 553.2 kWh a month, across 30,335 customers on that row.
Hawaii averaged 40.40¢/kWh and $207.89 a month. The United States averaged 17.23¢/kWh and $150.68. State and national figures come from EIA's Average Bill file.
Revenue divided by sales, EIA-861 Sales to Ultimate Customers, 2025, released October 7, 2026. Texas wires utilities come from the Delivery Companies file. The price and bill use bundled service. Customer count: 30,335, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$384.30
38.43¢/kWh × 1,000 kWh. Bundled residential average, EIA-861 2025. The customer charge is already folded into this average, so it stands beside a tariff total rather than being added to it.
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 34.30¢ | $161.42 | 470.6 | 28,658 |
| 2016 | 34.03¢ | $162.70 | 478.2 | 28,574 |
| 2017 | 34.52¢ | $169.35 | 490.6 | 28,766 |
| 2018 | 37.30¢ | $187.52 | 502.8 | 28,961 |
| 2019 | 34.87¢ | $180.40 | 517.4 | 29,195 |
| 2020 | 33.70¢ | $168.64 | 500.3 | 29,510 |
| 2021 | 36.33¢ | $189.20 | 520.8 | 29,803 |
| 2022 | 39.31¢ | $210.08 | 534.3 | 29,936 |
| 2023 | 37.54¢ | $202.05 | 538.3 | 30,025 |
| 2024 | 41.29¢ | $221.37 | 536.2 | 30,109 |
| 2025 | 38.43¢ | $212.58 | 553.2 | 30,335 |
EIA-861, 2015–2025, using the same service type as the 2025 figure. A blank year means that service was not in the file.
Counties
Kauai.
EIA-861 Service Territory, 2025. A listed county is the county EIA recorded. It does not mean every address in the county is served. Open this utility in the bill calculator · Rate history tool