Appliance Electricity Costs in Hawaii
These estimates use May 2026 EIA residential electricity rates for Hawaii: 52.00 cents/kWh.
| Appliance | Typical watts | Hours/day | Monthly cost |
|---|---|---|---|
| Space Heater | 1,500 W | 4 | $93.60 |
| Oil-Filled Radiator | 1,200 W | 5 | $93.60 |
| Electric Fireplace | 1,500 W | 4 | $93.60 |
| Window AC | 900 W | 8 | $112.32 |
| Portable AC | 1,200 W | 8 | $149.76 |
| Central AC | 3,500 W | 6 | $327.60 |
| Mini Split Heat Pump | 1,200 W | 8 | $149.76 |
| Ceiling Fan | 50 W | 12 | $9.36 |
| Box Fan | 75 W | 12 | $14.04 |
| Dehumidifier | 600 W | 12 | $112.32 |
| Humidifier | 80 W | 8 | $9.98 |
| Air Purifier | 50 W | 24 | $18.72 |
| Hot Tub | 4,500 W | 2 | $140.40 |
| Pool Pump | 1,500 W | 8 | $187.20 |
| Aquarium Heater | 150 W | 24 | $56.16 |
| Aquarium Filter | 20 W | 24 | $7.49 |
| LED Grow Light | 300 W | 12 | $56.16 |
| Incandescent Light Bulb | 60 W | 5 | $4.68 |
| LED Light Bulb | 10 W | 5 | $0.78 |
| Christmas Lights | 150 W | 6 | $14.04 |
| EV Level 1 Charger | 1,400 W | 8 | $174.72 |
| EV Level 2 Charger | 7,200 W | 3 | $336.96 |
| Electric Bike Charger | 250 W | 3 | $11.70 |
| Refrigerator | 150 W | 24 | $56.16 |
| Chest Freezer | 120 W | 24 | $44.93 |
| Upright Freezer | 180 W | 24 | $67.39 |
| Dishwasher | 1,500 W | 1 | $23.40 |
| Electric Oven | 3,000 W | 1 | $46.80 |
| Toaster Oven | 1,200 W | 0.5 | $9.36 |
| Microwave | 1,100 W | 0.25 | $4.29 |
| Coffee Maker | 1,000 W | 0.3 | $4.68 |
| Electric Kettle | 1,500 W | 0.2 | $4.68 |
| Slow Cooker | 250 W | 8 | $31.20 |
| Air Fryer | 1,500 W | 0.5 | $11.70 |
| Instant Pot | 1,000 W | 0.7 | $10.92 |
| Clothes Dryer | 4,000 W | 1 | $62.40 |
| Washing Machine | 700 W | 0.5 | $5.46 |
| Clothes Iron | 1,200 W | 0.3 | $5.62 |
| Hair Dryer | 1,600 W | 0.2 | $4.99 |
| Electric Water Heater | 4,500 W | 3 | $210.60 |
| Tankless Electric Water Heater | 12,000 W | 0.5 | $93.60 |
| Well Pump | 1,000 W | 1 | $15.60 |
| Sump Pump | 800 W | 0.5 | $6.24 |
| Garage Door Opener | 500 W | 0.1 | $0.78 |
| Security Camera | 6 W | 24 | $2.25 |
| Wi-Fi Router | 12 W | 24 | $4.49 |
| Cable Box | 25 W | 24 | $9.36 |
| Gaming PC | 600 W | 4 | $37.44 |
| Desktop Computer | 200 W | 8 | $24.96 |
| Laptop | 60 W | 8 | $7.49 |
| Computer Monitor | 40 W | 8 | $4.99 |
| LED TV | 120 W | 5 | $9.36 |
| Game Console | 160 W | 4 | $9.98 |
| Printer | 30 W | 0.5 | $0.23 |
| Phone Charger | 10 W | 3 | $0.47 |
| Heated Blanket | 120 W | 8 | $14.98 |
| Electric Mattress Pad | 80 W | 8 | $9.98 |
| CPAP Machine | 60 W | 8 | $7.49 |
| Treadmill | 800 W | 1 | $12.48 |
| Electric Sauna | 6,000 W | 1 | $93.60 |