Residential Rate Report
Hawaii Residential Electricity Rates
Hawaii operates isolated island electric grids regulated by the Hawaii Public Utilities Commission (HPUC). Hawaiian Electric Companies (HECO, MECO, HELCO) serve Oahu, Maui, and Hawaii Island, while Kauai Island Utility Cooperative (KIUC) serves Kauai. Because island grids rely historically on imported petroleum fuel, Hawaii residential electricity rates rank highest in the nation.
Estimated Monthly Household Energy Charges
Estimated monthly energy charges for standard home electricity usage baselines in Hawaii calculated at 46.62 ¢/kWh:
| Monthly Usage (kWh) | Household Profile Baseline | Estimated Energy Charge ($/mo) |
|---|---|---|
| 500 kWh | 500 kWh / month (Apartment / Small Home) | $233.10 / mo |
| 800 kWh | 800 kWh / month (Medium Home / Efficient Usage) | $372.96 / mo |
| 1,000 kWh | 1,000 kWh / month (Standard U.S. Household Baseline) | $466.20 / mo |
| 1,500 kWh | 1,500 kWh / month (Large Home / All-Electric / High AC) | $699.30 / mo |
* Estimated energy charge only. Excludes utility fixed monthly customer fees, local distribution charges, time-of-use peak demand rates, fuel surcharges, and state taxes.
24-Month Historical Rate Trend (Hawaii)
Official U.S. EIA residential electricity price history for Hawaii over recent reporting periods:
| Reporting Month | Average Rate (¢/kWh) | Month-over-Month Change |
|---|---|---|
| April 2026 | 46.62 ¢/kWh | +4.39 ¢ |
| March 2026 | 42.23 ¢/kWh | -0.77 ¢ |
| February 2026 | 43.00 ¢/kWh | +3.21 ¢ |
| January 2026 | 39.79 ¢/kWh | -1.83 ¢ |
| December 2025 | 41.62 ¢/kWh | +1.42 ¢ |
| November 2025 | 40.20 ¢/kWh | +0.46 ¢ |
| October 2025 | 39.74 ¢/kWh | +0.20 ¢ |
| September 2025 | 39.54 ¢/kWh | +0.64 ¢ |
| August 2025 | 38.90 ¢/kWh | -0.46 ¢ |
| July 2025 | 39.36 ¢/kWh | -1.60 ¢ |
| June 2025 | 40.96 ¢/kWh | -0.07 ¢ |
| May 2025 | 41.03 ¢/kWh | -1.41 ¢ |
| April 2025 | 42.44 ¢/kWh | +1.33 ¢ |
| March 2025 | 41.11 ¢/kWh | -1.58 ¢ |
| February 2025 | 42.69 ¢/kWh | +2.18 ¢ |
| January 2025 | 40.51 ¢/kWh | -1.88 ¢ |
| December 2024 | 42.39 ¢/kWh | +2.73 ¢ |
| November 2024 | 39.66 ¢/kWh | -1.76 ¢ |
| October 2024 | 41.42 ¢/kWh | +0.54 ¢ |
| September 2024 | 40.88 ¢/kWh | -1.38 ¢ |
| August 2024 | 42.26 ¢/kWh | -0.67 ¢ |
| July 2024 | 42.93 ¢/kWh | +0.28 ¢ |
| June 2024 | 42.65 ¢/kWh | -1.63 ¢ |
| May 2024 | 44.28 ¢/kWh | -1.08 ¢ |
Key Electricity Cost Drivers in Hawaii
Primary market structure, generation mix, and environmental factors shaping electricity costs across Hawaii:
1. Isolated Island Grids & Fuel Import Dependency
Isolated electrical systems cannot import power from neighboring regions, making baseline rates highly sensitive to global oil pricing.
2. Nation-Leading Rooftop Solar Adoption
High electricity rates drive widespread residential rooftop solar and battery storage adoption across all Hawaiian islands.
3. Statutory 100% Clean Energy Mandate
State climate legislation mandates 100% renewable electricity supply, accelerating utility-scale solar, geothermal, and wind grid integration.
Why Your Individual Electric Bill May Differ
Statewide average rates compiled by the U.S. EIA reflect overall residential revenue divided by total sales. Your actual monthly electricity bill in Hawaii will vary based on:
- Fixed Monthly Customer Charges: Basic meter account service fees assessed regardless of kWh consumption.
- Delivery & Distribution Tariffs: Regulated transmission charges set by state utility commissions.
- Time-of-Use (TOU) Pricing: Higher peak-period demand rates during hot afternoon or winter evening hours.
- Local Taxes & Clean Energy Riders: Municipal taxes and clean energy fund surcharges.
Calculate Your Exact Hawaii Home Electricity Bill
Statewide average rates provide a baseline, but your actual electric bill depends on your utility tariff structure, seasonal AC usage, and household appliances. Use Energy Bill Lab tools to analyze your bill or calculate appliance operating costs.