PlugCosts

Electricity cost in Hawaii

Avg residential price · June 2026
52.72¢/kWh
vs U.S. average (18.34¢)
+187%
Rank (1 = cheapest of 51)
#51+28.7% vs year ago

What typical appliances cost per month in Hawaii

AppliancePresetEst. monthly cost
Central air conditioner ~3,500 W · 8h/day$449
Window air conditioner ~900 W · 8h/day$116
Portable air conditioner ~1,100 W · 8h/day$141
Ductless mini-split ~800 W · 8h/day$103
Central heat pump ~3,000 W · 6h/day$289
Space heater ~1,500 W · 6h/day$144
Electric baseboard heater ~1,500 W · 8h/day$193
Infrared heater ~1,500 W · 6h/day$144
Oil-filled radiator ~1,200 W · 7h/day$135
Furnace blower fan ~500 W · 6h/day$48
Ceiling fan ~60 W · 8h/day$8
Whole-house fan ~400 W · 3h/day$19
Attic fan ~300 W · 6h/day$29
Humidifier ~40 W · 10h/day$6
Electric fireplace ~1,400 W · 4h/day$90
Dehumidifier ~500 W · 10h/day$80
Refrigerator ~150 W · 8h/day$19
Garage refrigerator ~200 W · 10h/day$32
Upright freezer ~120 W · 8h/day$15
Chest freezer ~90 W · 8h/day$12
Microwave ~1,100 W · 0.25h/day$4
Electric oven ~2,400 W · 1h/day$39
Electric stove burner ~2,000 W · 1h/day$32
Induction cooktop ~1,800 W · 0.75h/day$22
Air fryer ~1,500 W · 0.5h/day$12
Toaster oven ~1,200 W · 0.5h/day$10
Coffee maker ~1,000 W · 0.3h/day$5
Electric kettle ~1,500 W · 0.2h/day$5
Countertop ice maker ~120 W · 8h/day$15
Dishwasher ~1,500 W · 1h/day$24
Electric water heater ~4,500 W · 3h/day$217
Heat pump water heater ~550 W · 4h/day$35
Electric tankless water heater ~18,000 W · 1h/day$289
Washing machine ~500 W · 0.75h/day$6
Electric clothes dryer ~3,000 W · 1h/day$48
Heat pump dryer ~900 W · 1.5h/day$22
Well pump ~1,000 W · 2h/day$32
Sump pump ~800 W · 1h/day$13
Pool pump ~1,100 W · 6h/day$106
Hot tub ~3,000 W · 3h/day$144
Electric sauna ~6,000 W · 1h/day$96
Heated floor ~1,200 W · 6h/day$116
Garage heater ~5,000 W · 4h/day$321
Aquarium ~100 W · 12h/day$19
Grow lights ~400 W · 14h/day$90
E-bike charging ~150 W · 3h/day$7
Electric scooter charging ~120 W · 4h/day$8
Gaming PC ~450 W · 4h/day$29
Television ~100 W · 5h/day$8
Home server ~100 W · 24h/day$39
NAS (network storage) ~40 W · 24h/day$15
Wi-Fi router & modem ~15 W · 24h/day$6
Security camera system ~30 W · 24h/day$12
Standby (vampire) power ~75 W · 24h/day$29
EV home charging 1,000 mi/month · 28 kWh/100 mi · 12% charging losses$168

Monthly cost while the appliance is in use; seasonal equipment (AC, heaters, pool pumps) won't run all 12 months. EV home charging uses 1,000 miles/month at 28 kWh/100 mi with 12% charging losses — not charger wattage. Open any calculator to enter your own numbers.

Calculate any appliance at the Hawaii average price

Per hour
$0.79
Per day used
$3.16
Per month
$96.28
Per year
$1,155.36

6.00 kWh/day used · 183 kWh/month in use · 2192 kWh/year at 52.72¢ per kWh

Source: EIA Electric Power Monthly, Table 5.6.A, June 2026. EIA averages are computed from utility revenue divided by kilowatt-hours sold — they include delivery and taxes but are not any specific tariff. Check your bill for your exact rate.