Kauai Island Utility Cooperative electricity rates in Hawaii, 2025
Kauai Island Utility Cooperative’s 30,335 residential customers paid an average of 38.43¢ per kWh in 2025, 5% below the Hawaii average of 40.40¢. The typical home used 553 kWh a month, for an average bill of $213.
- 38.43¢avg ¢/kWh (2025)−2.86¢ (-6.9%) vs 2024
- $213Avg monthly billHawaii: $208
- 553 kWhAvg monthly useHawaii: 515 kWh
- 30,335Residential customersFull-service utility
| Sector | Customers | Sales (MWh) | Revenue | ¢/kWh 2025 | ¢/kWh 2024 | Change |
|---|---|---|---|---|---|---|
| Residential | 30,335 | 201,377 | $77,384,400 | 38.43¢ | 41.29¢ | −2.86¢ (-6.9%) |
| Commercial | 5,168 | 121,148 | $47,152,300 | 38.92¢ | 41.69¢ | −2.76¢ (-6.6%) |
| Industrial | 114 | 164,870 | $56,328,300 | 34.17¢ | 37.09¢ | −2.93¢ (-7.9%) |
| All sectors | 35,617 | 487,395 | $180,865,000 | 37.11¢ | 39.96¢ | −2.85¢ (-7.1%) |
How Kauai Island Utility Cooperative compares
- Hawaii residential average, 2025: 40.40¢ per kWh, 515 kWh a month, $208 average bill. U.S. average: 17.23¢, 874 kWh, $151.
- Among 4 full-service utilities in Hawaii with at least 1,000 residential customers, Kauai Island Utility Cooperative ranks 1 of 4 from lowest to highest average price.
- Latest monthly figure: Hawaii homes paid 47.18¢ per kWh in August 2026 (preliminary), against 38.53¢ in August 2025. Summer months often run higher than the annual average.
- From 2024 to 2025 this average fell 6.9%; the state average fell 5.8%.
- Kauai Island Utility Cooperative is an electric cooperative, owned by the members it serves; its board sets rates. Balancing authority: NA.
Where Kauai Island Utility Cooperative serves
EIA lists 1 Hawaii county in its 2025 service territory: Kauai.
17 ZIP codes are matched to Kauai Island Utility Cooperative in NREL’s 2024 ZIP file: 96703, 96705, 96714, 96715, 96716, 96722, 96741, 96746, 96747, 96751, 96752, 96754, 96756, 96765, 96766, 96769, 96796. Utility boundaries do not follow ZIP lines, so a ZIP can have more than one provider.
Hawaii full-service utilities with similar rates
| Provider | ¢/kWh | Avg bill | Customers |
|---|---|---|---|
| Hawaiian Electric Co Inc | 40.54¢ | $190 | 276,853 |
| Maui Electric Co Ltd | 41.97¢ | $211 | 61,877 |
| Hawaii Electric Light Co Inc | 45.80¢ | $206 | 79,318 |
Sources
- U.S. Energy Information Administration, Annual Electric Power Industry Report, Form EIA-861, 2025 final data (f8612025.zip, file dated October 7, 2026): Sales to Ultimate Customers, Average Monthly Bill and Service Territory tables.
- EIA Form EIA-861, 2024 final data (f8612024.zip, file dated December 4, 2025), for the 2024 comparison.
- EIA Electric Power Monthly, Table 5.6.A (average price by state, August 2026 and August 2025; 2026 values are preliminary), file dated October 22, 2026.
- National Renewable Energy Laboratory via OpenEI, U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2024) (investor-owned and other utilities, files dated November 10, 2025), used only to match ZIP codes to utilities.
Average price = residential revenue ÷ residential kWh sold, as reported to EIA. It includes fixed monthly charges, taxes passed through in revenue and seasonal tiers, averaged over the year. Your own rate depends on your tariff and usage.