How much does a space heater cost per month in Michigan?

About $16.55 a month, assuming 1,500 W at a 60% duty cycle, 8 hours a day, 120 days a year at 22.99¢/kWh.

How many kilowatt-hours does a space heater use?

Roughly 864 kWh a year under these assumptions, or 0.90 kWh for every hour it runs.

Is that expensive compared with other states?

Michigan has the 13th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $157 a year.

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Cost to run a space heater in Michigan (August 2026 rates)

At 22.99¢ per kilowatt-hour — Michigan's average residential price in August 2026 — running a space heater costs $199 a year. That is 27% more than the national average of $157. Michigan's residential rate is up 10.9% from August 2025, which moves this appliance from $179 to $199 a year.

Per hour: 20.7¢
Per day of use: $1.66
Per month: $16.55
Per year: $199

Assumption: 1,500 W at a 60% duty cycle, 8 hours a day, 120 days a year — 864 kWh a year. 1,500 W is the ceiling for a 120 V plug-in heater, and nearly every model sold hits it on high. A thermostat changes how often it runs, not how hard. Use the calculator to swap in the numbers from your own model.

How Michigan compares

Michigan pays 22.99¢/kWh, the 13th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $41.73 more a year than the typical U.S. household pays for the same use. Running the same space heater costs $110 a year in Nevada and $408 in Hawaii, so where you live changes this bill by $298 a year.

State	Rate	Per month	Per year
Maryland	21.40¢	$15.41	$185
Pennsylvania	21.77¢	$15.67	$188
Michigan	22.99¢	$16.55	$199
Vermont	23.84¢	$17.16	$206
Connecticut	24.51¢	$17.65	$212

States ranked by average residential price, cheapest first. See all 51 states for a space heater.

What else costs about the same in Michigan

Portable air conditioner$194 a year in MI Garage refrigerator$207 a year in MI Electric clothes dryer$179 a year in MI

Cutting the number down

Heating one occupied room and letting the rest of the house sit cooler is the whole case for a space heater. Running one in every room costs more than central heat.
Ceramic, oil-filled and infrared heaters all convert essentially 100% of the electricity to heat. At the same wattage the running cost is identical, whatever the box claims.
The cheapest watt is the one you skip: closing the door to the room you are heating does more than any model upgrade.

Questions

How much does a space heater cost per month in Michigan?: About $16.55 a month, assuming 1,500 W at a 60% duty cycle, 8 hours a day, 120 days a year at 22.99¢/kWh.
How many kilowatt-hours does a space heater use?: Roughly 864 kWh a year under these assumptions, or 0.90 kWh for every hour it runs.
Is that expensive compared with other states?: Michigan has the 13th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $157 a year.