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HI · ranked #1 in the US

Hawaii residential rate: 41.2¢/kWh

That's 150% higher than the US average of 16.5¢/kWh. Island grids can't interconnect; imported petroleum historically fueled most generation. Oahu, Maui, and Big Island rates vary meaningfully around this weighted state average.

Estimated cost

$139.05/month
$4.64 per day$1,691.78 per year337.5 kWh monthly
W

A space heater draws full power only while the thermostat/compressor is running — about 7.5 effective hours at 1500W across your 10-hour window.

At your rate

What appliances cost in Hawaii.

Typical monthly running cost at 41.2¢/kWh, sorted by biggest impact on your bill.

ApplianceWattsMonthlyYearly
Electric Furnace20000W$791.04$9,624.32
Central Air Conditioner3500W$423.95$5,158.03
EV Charger Level 2 (240V)7200W$266.98$3,248.21
Electric Pool Heater/Heat Pump5000W$259.56$3,157.98
Heat Pump (Air-Source)2500W$203.94$2,481.27
EV Charger Level 1 (120V)1400W$173.04$2,105.32
Single-Speed Pool Pump1500W$148.32$1,804.56
Space Heater1500W$139.05$1,691.78
Infrared Heater1500W$111.24$1,353.42
Oil-Filled Radiator1500W$111.24$1,353.42
Electric Baseboard Heater1500W$101.97$1,240.64
Crawlspace Dehumidifier600W$93.44$1,136.87
Portable Air Conditioner1100W$70.70$860.17
Ductless Mini-Split900W$66.74$812.05
Window Air Conditioner900W$53.40$649.64
Ceramic Heater1500W$51.91$631.60
Dehumidifier500W$51.91$631.60
Gas Furnace (Electric Blower)600W$37.08$451.14
Electric Clothes Dryer3000W$37.08$451.14
Electric Water Heater (Tank)4500W$33.37$406.03
Compact (240V) Dryer2400W$29.66$360.91
Pond / Fountain Pump100W$29.66$360.91
Variable-Speed Pool Pump500W$24.72$300.76
Heated Drying Rack200W$19.78$240.61
Desktop PC (Office/Home)150W$16.69$203.01
Gaming PC (High-End)450W$16.69$203.01
Boiler (Circulator Pump + Controls)200W$14.83$180.46
Dishwasher1200W$14.83$180.46
Heat Pump Dryer800W$14.83$180.46
Indoor Grow Light (LED)100W$14.83$180.46
Refrigerator150W$14.68$178.65
Upright Freezer130W$13.50$164.21
Attic Fan300W$13.35$162.41
Whole-House Fan450W$13.35$162.41
Hot Water Recirculating Pump45W$13.35$162.41
Air Purifier40W$11.87$144.36
Electric Range/Stove2500W$11.59$140.98
Induction Cooktop1800W$11.12$135.34
Tankless Electric Water Heater18000W$11.12$135.34
Attic Exhaust Fan (Passive-Intake)300W$11.12$135.34
Deep Fryer1700W$10.51$127.82
Heat Pump Water Heater550W$10.20$124.06
Box Fan100W$9.89$120.30
Slow Cooker / Crock-Pot200W$9.89$120.30
Home Theater Projector250W$9.27$112.79
Hot Tub / Spa1500W$9.27$112.79
Chest Freezer100W$8.90$108.27
Cable/Satellite Box (DVR)30W$8.90$108.27
NAS (Network-Attached Storage)30W$8.90$108.27
Mini Fridge85W$8.83$107.37
OLED TV (65-inch)170W$8.40$102.26
Wine Cooler90W$8.01$97.45
PlayStation 5200W$7.42$90.23
Treadmill750W$6.95$84.59
Electric Leaf Blower1100W$6.80$82.71
Electric Hot Plate1200W$6.67$81.21
OLED TV (55-inch)130W$6.43$78.20
Microwave Oven1000W$6.18$75.19
Incandescent Bulb (100W)100W$6.18$75.19
Sous Vide Cooker800W$5.93$72.18
Countertop Ice Maker150W$5.93$72.18
Xbox Series X/S160W$5.93$72.18
LED TV (65-inch)115W$5.69$69.17
Laptop50W$5.56$67.67
32-inch Monitor45W$5.01$60.90
Electric Blanket100W$4.94$60.15
Instant Pot / Electric Pressure Cooker1000W$4.94$60.15
Gas Clothes Dryer (Electric Blower)400W$4.94$60.15
Electric Griddle1500W$4.64$56.39
Electric Wok1500W$4.64$56.39
Ceiling Fan60W$4.45$54.14
UPS (Uninterruptible Power Supply)15W$4.45$54.14
Landscape / Path Lights60W$4.45$54.14
Air Fryer1500W$4.17$50.75
Humidifier50W$3.96$48.12
LED TV (55-inch)80W$3.96$48.12
Tower Fan50W$3.71$45.11
A/V Receiver100W$3.71$45.11
Home Theater in a Box100W$3.71$45.11
Incandescent Bulb (60W)60W$3.71$45.11
Elliptical Trainer400W$3.71$45.11
Waffle Iron1100W$3.40$41.35
27-inch Monitor30W$3.34$40.60
Hair Dryer1800W$3.34$40.60
Washing Machine (Top Load)500W$3.09$37.60
Toaster Oven1400W$3.03$36.84
Powered Bookshelf Speakers40W$2.97$36.09
Holiday String Lights (Incandescent)40W$2.97$36.09
Aquarium Light30W$2.97$36.09
Wi-Fi Router10W$2.97$36.09
Cable/DSL Modem10W$2.97$36.09
Electric Lawn Mower1500W$2.78$33.84
Chandelier (Multi-Bulb Fixture)72W$2.67$32.48
Desk Fan25W$2.47$30.08
Yogurt Maker25W$2.47$30.08
Halogen Bulb50W$2.47$30.08
Smart Display (Echo Show / Nest Hub)8W$2.37$28.87
External Hard Drive8W$2.37$28.87
Mesh Wi-Fi Node (per node)8W$2.37$28.87
Security System Panel8W$2.37$28.87
Indoor Electric Grill1500W$2.22$27.07
Powered Subwoofer60W$2.22$27.07
Washing Machine (Front Load)350W$2.16$26.32
Electric Kettle1500W$1.85$22.56
Central Vacuum System1500W$1.85$22.56
3D Printer (FDM)120W$1.78$21.65
Outdoor Porch/Wall Light12W$1.78$21.65
Rice Cooker500W$1.73$21.05
Bread Machine550W$1.70$20.68
Fluorescent Tube (4-ft T8)32W$1.58$19.25
Gas Range (Electric Ignition)400W$1.48$18.05
Soundbar30W$1.48$18.05
Security Camera (Wired)5W$1.48$18.05
Ethernet Switch (8-port)5W$1.48$18.05
Electric Shaver (Charging)5W$1.48$18.05
Smart Speaker (Echo / HomePod)4W$1.19$14.44
Video Doorbell4W$1.19$14.44
Sprinkler Controller4W$1.19$14.44
Toaster850W$1.05$12.78
LED Garage/Shop Light40W$0.99$12.03
Range Hood150W$0.93$11.28
Smart Thermostat3W$0.89$10.83
Clothes Iron1200W$0.89$10.83
Recessed Can Light12W$0.89$10.83
Doorbell Transformer3W$0.89$10.83
Food Processor700W$0.87$10.53
Drip Coffee Maker900W$0.83$10.15
Electric Pressure Washer1600W$0.79$9.62
Popcorn Maker1200W$0.74$9.02
LED Bulb (12W, 75W equivalent)12W$0.74$9.02
LED Light Strip (5m)15W$0.74$9.02
Electric String Trimmer600W$0.74$9.02
Well Pump1100W$0.68$8.27
Espresso Machine1350W$0.67$8.12
Exercise Bike / Peloton100W$0.62$7.52
Electric Toothbrush Charger2W$0.59$7.22
LED Bulb (9W, 60W equivalent)9W$0.56$6.77
Smart LED Bulb9W$0.56$6.77
Floor Lamp15W$0.56$6.77
Clothes Steamer1500W$0.46$5.64
Nintendo Switch18W$0.44$5.41
Stand Mixer325W$0.40$4.89
Blu-ray Player15W$0.37$4.51
VR Headset (Charging + Play)15W$0.37$4.51
Security Flood Light30W$0.37$4.51
Holiday String Lights (LED)5W$0.37$4.51
CFL Bulb (13W, 60W equivalent)13W$0.32$3.91
Heated Mattress Pad120W$0.30$3.61
Ventless Gas Heater (Electric Ignition)15W$0.30$3.61
Motion Sensor Light Switch1W$0.30$3.61
Juicer400W$0.25$3.01
Blender600W$0.22$2.71
Tablet Charger15W$0.22$2.71
Streaming Device (Roku/Fire TV/Apple TV)4W$0.20$2.41
Phone Charger5W$0.20$2.41
Soldering Iron/Station60W$0.19$2.26
Curling Iron / Flat Iron75W$0.19$2.26
Paper Shredder250W$0.15$1.88
Garbage Disposal550W$0.14$1.65
Hand Mixer200W$0.12$1.50
Record Player / Turntable10W$0.12$1.50
Table Lamp10W$0.12$1.50
Sump Pump800W$0.10$1.20
Immersion Blender250W$0.09$1.13
Laser Printer500W$0.06$0.75
Rowing Machine8W$0.05$0.60
Inkjet Printer15W$0.02$0.23
Electric Can Opener70W$0.01$0.11
Flatbed/Document Scanner25W$0.01$0.08
Garage Door Opener350W$0.00$0.01

Utilities serving Hawaii

  • Hawaiian Electric (HECO)
  • Maui Electric
  • Hawaii Electric Light (HELCO)
  • Kauai Island Utility Cooperative

Deregulation status

none

In Hawaii your utility is both the supplier and the deliverer. No supplier shopping, but regulated rates tend to be more stable.

Sources: www.eia.gov · puc.hawaii.gov

Last updated: 2026-04-13