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MT · ranked #43 in the US

Montana residential rate: 12.4¢/kWh

That's 25% lower than the US average of 16.5¢/kWh. Hydro-heavy Pacific Northwest generation plus cold winters with electric-resistance heat in rural areas produces a winter-dominant load shape.

Estimated cost

$41.85/month
$1.40 per day$509.18 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 Montana.

Typical monthly running cost at 12.4¢/kWh, sorted by biggest impact on your bill.

ApplianceWattsMonthlyYearly
Electric Furnace20000W$238.08$2,896.64
Central Air Conditioner3500W$127.60$1,552.42
EV Charger Level 2 (240V)7200W$80.35$977.62
Electric Pool Heater/Heat Pump5000W$78.12$950.46
Heat Pump (Air-Source)2500W$61.38$746.79
EV Charger Level 1 (120V)1400W$52.08$633.64
Single-Speed Pool Pump1500W$44.64$543.12
Space Heater1500W$41.85$509.18
Infrared Heater1500W$33.48$407.34
Oil-Filled Radiator1500W$33.48$407.34
Electric Baseboard Heater1500W$30.69$373.40
Crawlspace Dehumidifier600W$28.12$342.17
Portable Air Conditioner1100W$21.28$258.89
Ductless Mini-Split900W$20.09$244.40
Window Air Conditioner900W$16.07$195.52
Ceramic Heater1500W$15.62$190.09
Dehumidifier500W$15.62$190.09
Gas Furnace (Electric Blower)600W$11.16$135.78
Electric Clothes Dryer3000W$11.16$135.78
Electric Water Heater (Tank)4500W$10.04$122.20
Compact (240V) Dryer2400W$8.93$108.62
Pond / Fountain Pump100W$8.93$108.62
Variable-Speed Pool Pump500W$7.44$90.52
Heated Drying Rack200W$5.95$72.42
Desktop PC (Office/Home)150W$5.02$61.10
Gaming PC (High-End)450W$5.02$61.10
Boiler (Circulator Pump + Controls)200W$4.46$54.31
Dishwasher1200W$4.46$54.31
Heat Pump Dryer800W$4.46$54.31
Indoor Grow Light (LED)100W$4.46$54.31
Refrigerator150W$4.42$53.77
Upright Freezer130W$4.06$49.42
Attic Fan300W$4.02$48.88
Whole-House Fan450W$4.02$48.88
Hot Water Recirculating Pump45W$4.02$48.88
Air Purifier40W$3.57$43.45
Electric Range/Stove2500W$3.49$42.43
Induction Cooktop1800W$3.35$40.73
Tankless Electric Water Heater18000W$3.35$40.73
Attic Exhaust Fan (Passive-Intake)300W$3.35$40.73
Deep Fryer1700W$3.16$38.47
Heat Pump Water Heater550W$3.07$37.34
Box Fan100W$2.98$36.21
Slow Cooker / Crock-Pot200W$2.98$36.21
Home Theater Projector250W$2.79$33.95
Hot Tub / Spa1500W$2.79$33.95
Chest Freezer100W$2.68$32.59
Cable/Satellite Box (DVR)30W$2.68$32.59
NAS (Network-Attached Storage)30W$2.68$32.59
Mini Fridge85W$2.66$32.32
OLED TV (65-inch)170W$2.53$30.78
Wine Cooler90W$2.41$29.33
PlayStation 5200W$2.23$27.16
Treadmill750W$2.09$25.46
Electric Leaf Blower1100W$2.05$24.89
Electric Hot Plate1200W$2.01$24.44
OLED TV (55-inch)130W$1.93$23.54
Microwave Oven1000W$1.86$22.63
Incandescent Bulb (100W)100W$1.86$22.63
Sous Vide Cooker800W$1.79$21.72
Countertop Ice Maker150W$1.79$21.72
Xbox Series X/S160W$1.79$21.72
LED TV (65-inch)115W$1.71$20.82
Laptop50W$1.67$20.37
32-inch Monitor45W$1.51$18.33
Electric Blanket100W$1.49$18.10
Instant Pot / Electric Pressure Cooker1000W$1.49$18.10
Gas Clothes Dryer (Electric Blower)400W$1.49$18.10
Electric Griddle1500W$1.40$16.97
Electric Wok1500W$1.40$16.97
Ceiling Fan60W$1.34$16.29
UPS (Uninterruptible Power Supply)15W$1.34$16.29
Landscape / Path Lights60W$1.34$16.29
Air Fryer1500W$1.26$15.28
Humidifier50W$1.19$14.48
LED TV (55-inch)80W$1.19$14.48
Tower Fan50W$1.12$13.58
A/V Receiver100W$1.12$13.58
Home Theater in a Box100W$1.12$13.58
Incandescent Bulb (60W)60W$1.12$13.58
Elliptical Trainer400W$1.12$13.58
Waffle Iron1100W$1.02$12.45
27-inch Monitor30W$1.00$12.22
Hair Dryer1800W$1.00$12.22
Washing Machine (Top Load)500W$0.93$11.32
Toaster Oven1400W$0.91$11.09
Powered Bookshelf Speakers40W$0.89$10.86
Holiday String Lights (Incandescent)40W$0.89$10.86
Aquarium Light30W$0.89$10.86
Wi-Fi Router10W$0.89$10.86
Cable/DSL Modem10W$0.89$10.86
Electric Lawn Mower1500W$0.84$10.18
Chandelier (Multi-Bulb Fixture)72W$0.80$9.78
Desk Fan25W$0.74$9.05
Yogurt Maker25W$0.74$9.05
Halogen Bulb50W$0.74$9.05
Smart Display (Echo Show / Nest Hub)8W$0.71$8.69
External Hard Drive8W$0.71$8.69
Mesh Wi-Fi Node (per node)8W$0.71$8.69
Security System Panel8W$0.71$8.69
Indoor Electric Grill1500W$0.67$8.15
Powered Subwoofer60W$0.67$8.15
Washing Machine (Front Load)350W$0.65$7.92
Electric Kettle1500W$0.56$6.79
Central Vacuum System1500W$0.56$6.79
3D Printer (FDM)120W$0.54$6.52
Outdoor Porch/Wall Light12W$0.54$6.52
Rice Cooker500W$0.52$6.34
Bread Machine550W$0.51$6.22
Fluorescent Tube (4-ft T8)32W$0.48$5.79
Gas Range (Electric Ignition)400W$0.45$5.43
Soundbar30W$0.45$5.43
Security Camera (Wired)5W$0.45$5.43
Ethernet Switch (8-port)5W$0.45$5.43
Electric Shaver (Charging)5W$0.45$5.43
Smart Speaker (Echo / HomePod)4W$0.36$4.34
Video Doorbell4W$0.36$4.34
Sprinkler Controller4W$0.36$4.34
Toaster850W$0.32$3.85
LED Garage/Shop Light40W$0.30$3.62
Range Hood150W$0.28$3.39
Smart Thermostat3W$0.27$3.26
Clothes Iron1200W$0.27$3.26
Recessed Can Light12W$0.27$3.26
Doorbell Transformer3W$0.27$3.26
Food Processor700W$0.26$3.17
Drip Coffee Maker900W$0.25$3.06
Electric Pressure Washer1600W$0.24$2.90
Popcorn Maker1200W$0.22$2.72
LED Bulb (12W, 75W equivalent)12W$0.22$2.72
LED Light Strip (5m)15W$0.22$2.72
Electric String Trimmer600W$0.22$2.72
Well Pump1100W$0.20$2.49
Espresso Machine1350W$0.20$2.44
Exercise Bike / Peloton100W$0.19$2.26
Electric Toothbrush Charger2W$0.18$2.17
LED Bulb (9W, 60W equivalent)9W$0.17$2.04
Smart LED Bulb9W$0.17$2.04
Floor Lamp15W$0.17$2.04
Clothes Steamer1500W$0.14$1.70
Nintendo Switch18W$0.13$1.63
Stand Mixer325W$0.12$1.47
Blu-ray Player15W$0.11$1.36
VR Headset (Charging + Play)15W$0.11$1.36
Security Flood Light30W$0.11$1.36
Holiday String Lights (LED)5W$0.11$1.36
CFL Bulb (13W, 60W equivalent)13W$0.10$1.18
Heated Mattress Pad120W$0.09$1.09
Ventless Gas Heater (Electric Ignition)15W$0.09$1.09
Motion Sensor Light Switch1W$0.09$1.09
Juicer400W$0.07$0.91
Blender600W$0.07$0.81
Tablet Charger15W$0.07$0.81
Streaming Device (Roku/Fire TV/Apple TV)4W$0.06$0.72
Phone Charger5W$0.06$0.72
Soldering Iron/Station60W$0.06$0.68
Curling Iron / Flat Iron75W$0.06$0.68
Paper Shredder250W$0.05$0.57
Garbage Disposal550W$0.04$0.50
Hand Mixer200W$0.04$0.45
Record Player / Turntable10W$0.04$0.45
Table Lamp10W$0.04$0.45
Sump Pump800W$0.03$0.36
Immersion Blender250W$0.03$0.34
Laser Printer500W$0.02$0.23
Rowing Machine8W$0.01$0.18
Inkjet Printer15W$0.01$0.07
Electric Can Opener70W$0.00$0.03
Flatbed/Document Scanner25W$0.00$0.02
Garage Door Opener350W$0.00$0.00

Utilities serving Montana

  • NorthWestern Energy
  • Montana-Dakota Utilities

Deregulation status

partial

Montana has a mixed market — some customers can choose their supplier, others are served by the default utility.

Sources: www.eia.gov · psc.mt.gov

Last updated: 2026-04-13