Electricity cost in Hawaii, 2026
Homes in Hawaii paid an average of 46.28¢ per kWh from January–July 2026 — 154% above the U.S. average of 18.19¢, and up 12.7% from the same months of 2025. That ranks 51st cheapest of the 50 states and DC.
$124.96a month (30 days)
- Per hour of use
- $0.69
- Per day
- $4.17 · 9.00 kWh
- Per month
- 270.0 kWh
- Per year
- $1,520 · 3,285 kWh
Wattage on the nameplate is the maximum. Thermostat-controlled appliances (fridges, heaters, AC) cycle, so their real cost is usually lower; a plug-in meter tells you exactly.
What appliances cost to run in Hawaii
At 46.28¢/kWh, 30-day month. Your utility's rate and fixed charges will differ; your bill's total divided by its kWh is your real price.
| Appliance | Watts | h/day | Per month | Per year |
|---|---|---|---|---|
| Refrigerator (modern, ENERGY STAR) | 150 | 10 | $20.83 | $253.38 |
| Central AC, 3 ton | 3,500 | 8 | $388.75 | $4,730 |
| Window AC, 10,000 BTU | 900 | 8 | $99.96 | $1,216 |
| Space heater | 1,500 | 6 | $124.96 | $1,520 |
| Electric water heater | 4,500 | 3 | $187.43 | $2,280 |
| Electric clothes dryer | 5,400 | 0.75 | $56.23 | $684.13 |
| Dehumidifier | 785 | 12 | $130.79 | $1,591 |
| 55" LED TV | 100 | 5 | $6.94 | $84.46 |
| Desktop computer | 120 | 8 | $13.33 | $162.17 |
| Gaming PC under load | 450 | 3 | $18.74 | $228.04 |
| Wi-Fi router + modem | 25 | 24 | $8.33 | $101.35 |
| Level 2 EV charging, 32 A | 7,680 | 1.50 | $159.94 | $1,946 |
Hawaii compared with its neighbors
Hawaii is in the EIA's Pacific (AK, HI) region. July's price (48.00¢) ran above the year-to-date average, the usual summer peak. In the same region, Alaska paid 27.09¢.
| State | ¢/kWh 2026 YTD | Change vs 2025 | National rank |
|---|---|---|---|
| Alaska | 27.09 | +5.0% | 44 of 51 |
| Hawaii | 46.28 | +12.7% | 51 of 51 |
Charging an EV in Hawaii
At this price, a car that goes 3.5 miles per kWh costs about $14.69 per 100 miles charged at home (counting 10% charging losses). A 40-mile daily commute adds about $176.30 a month to the bill. Size the circuit with the EV charger calculator.
Solar panels in Hawaii
NREL's PVWatts model puts a south-facing, 20° roof array in Honolulu at about 1,622 kWh per kW of panels a year (5.8 peak sun hours a day). Covering the average US home's 899 kWh a month takes about 6.7 kW, or 17 panels of 400 W; at 46.28¢/kWh that power is worth about $5,104 a year. Output peaks in Aug (152 kWh per kW) and bottoms out in Feb (114). Run your own numbers in the solar panel calculator.
Running backup power instead
A 7.5 kW portable generator at half load burns about 0.75 gallons of gasoline an hour, roughly 3.75 kWh. At $3.20 a gallon that is about 64¢ per kWh — 1.4 times Hawaii's grid price. Generators are for outages, not savings. Compare with the fuel consumption calculator.