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

About $27.57 a month, assuming 1,500 W at a 50% duty cycle, 12 hours a day, 150 days a year at 24.51¢/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?

Connecticut has the 11th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $245 a year.

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

At 24.51¢ per kilowatt-hour — Connecticut's average residential price in August 2026 — running an electric baseboard heater costs $331 a year. That is 35% more than the national average of $245. Connecticut's residential rate is down 18.8% from August 2025, which moves this appliance from $407 to $331 a year.

Per hour: 18.4¢
Per day of use: $2.21
Per month: $27.57
Per year: $331

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 Connecticut compares

Connecticut pays 24.51¢/kWh, the 11th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $85.72 more 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
Michigan	22.99¢	$25.86	$310
Vermont	23.84¢	$26.82	$322
Connecticut	24.51¢	$27.57	$331
New Jersey	24.61¢	$27.69	$332
District of Columbia	25.98¢	$29.23	$351

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

What else costs about the same in Connecticut

Pool pump$424 a year in CT Garage refrigerator$221 a year in CT Space heater$212 a year in CT

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 Connecticut?: About $27.57 a month, assuming 1,500 W at a 50% duty cycle, 12 hours a day, 150 days a year at 24.51¢/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?: Connecticut has the 11th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $245 a year.