How much does an electric baseboard heater cost per month in Colorado?

About $19.32 a month, assuming 1,500 W at a 50% duty cycle, 12 hours a day, 150 days a year at 17.17¢/kWh.

How many kilowatt-hours does an electric baseboard heater use?

Roughly 1,350 kWh a year under these assumptions, or 0.75 kWh for every hour it runs.

Is that expensive compared with other states?

Colorado has the 22nd most expensive average residential rate in the country, so this appliance costs less here than the U.S. average of $245 a year.

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Cost to run an electric baseboard heater in Colorado (August 2026 rates)

At 17.17¢ per kilowatt-hour — Colorado's average residential price in August 2026 — running an electric baseboard heater costs $232 a year. That is 5% less than the national average of $245. Colorado's residential rate is up 5.9% from August 2025, which moves this appliance from $219 to $232 a year.

Per hour: 12.9¢
Per day of use: $1.55
Per month: $19.32
Per year: $232

Assumption: 1,500 W at a 50% duty cycle, 12 hours a day, 150 days a year — 1,350 kWh a year. Per 6-foot section. A whole house typically has several running at once, so multiply by the number of sections in use. Use the calculator to swap in the numbers from your own model.

How Colorado compares

Colorado pays 17.17¢/kWh, the 22nd most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $13.37 less a year than the typical U.S. household pays for the same use. Running the same electric baseboard heater costs $172 a year in Nevada and $637 in Hawaii, so where you live changes this bill by $465 a year.

State	Rate	Per month	Per year
Indiana	17.02¢	$19.15	$230
Iowa	17.06¢	$19.19	$230
Colorado	17.17¢	$19.32	$232
Minnesota	17.20¢	$19.35	$232
Virginia	17.64¢	$19.85	$238

States ranked by average residential price, cheapest first. See all 51 states for an electric baseboard heater.

What else costs about the same in Colorado

Pool pump$297 a year in CO Garage refrigerator$155 a year in CO Space heater$148 a year in CO

Cutting the number down

Resistance heat is 1 kWh in, 1 kWh of heat out. There is no efficiency upgrade available; the only lever is running fewer of them, less often.
Furniture pushed against a baseboard blocks convection and makes the thermostat run the element longer.
Zoning by room is the built-in advantage. Turning unused rooms down to 55 F is where the savings live.

Questions

How much does an electric baseboard heater cost per month in Colorado?: About $19.32 a month, assuming 1,500 W at a 50% duty cycle, 12 hours a day, 150 days a year at 17.17¢/kWh.
How many kilowatt-hours does an electric baseboard heater use?: Roughly 1,350 kWh a year under these assumptions, or 0.75 kWh for every hour it runs.
Is that expensive compared with other states?: Colorado has the 22nd most expensive average residential rate in the country, so this appliance costs less here than the U.S. average of $245 a year.