How much does a heat pump cost per month in Delaware?

About $33.26 a month, assuming 2,400 W at a 60% duty cycle, 10 hours a day, 150 days a year at 18.48¢/kWh.

How many kilowatt-hours does a heat pump use?

Roughly 2,160 kWh a year under these assumptions, or 1.44 kWh for every hour it runs.

Is that expensive compared with other states?

Delaware has the 19th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $395 a year.

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Cost to run a heat pump in Delaware (July 2026 rates)

At 18.48¢ per kilowatt-hour — Delaware's average residential price in July 2026 — running a heat pump costs $399 a year. That is about the same as the national average. Delaware's residential rate is up 11.5% from July 2025, which moves this appliance from $358 to $399 a year.

Per hour: 26.6¢
Per day of use: $2.66
Per month: $33.26
Per year: $399

Assumption: 2,400 W at a 60% duty cycle, 10 hours a day, 150 days a year — 2,160 kWh a year. A mid-size ducted heat pump in heating mode. It moves heat rather than making it, delivering two to four units of heat per unit of electricity until the outdoor temperature drops far enough to trigger backup resistance strips. Use the calculator to swap in the numbers from your own model.

How Delaware compares

Delaware pays 18.48¢/kWh, the 19th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $3.67 more a year than the typical U.S. household pays for the same use. Running the same heat pump costs $275 a year in Louisiana and $1,037 in Hawaii, so where you live changes this bill by $762 a year.

State	Rate	Per month	Per year
Minnesota	17.45¢	$31.41	$377
Virginia	17.55¢	$31.59	$379
Delaware	18.48¢	$33.26	$399
Wisconsin	19.06¢	$34.31	$412
Illinois	19.22¢	$34.60	$415

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

What else costs about the same in Delaware

Central air conditioner$435 a year in DE Hot tub$462 a year in DE Pool pump$319 a year in DE

Cutting the number down

Auxiliary resistance heat is the expensive mode. Big thermostat setbacks trigger it on recovery, so a steady setting usually beats aggressive setbacks.
Cold-climate models hold useful capacity well below freezing; older units fall back to strips much sooner.
Keeping the outdoor coil clear of snow, leaves and shrubs protects the efficiency you paid for.

Questions

How much does a heat pump cost per month in Delaware?: About $33.26 a month, assuming 2,400 W at a 60% duty cycle, 10 hours a day, 150 days a year at 18.48¢/kWh.
How many kilowatt-hours does a heat pump use?: Roughly 2,160 kWh a year under these assumptions, or 1.44 kWh for every hour it runs.
Is that expensive compared with other states?: Delaware has the 19th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $395 a year.