How much does a 3D printer cost per month in Delaware?

About 99.8¢ a month, assuming 120 W at a 60% duty cycle, 6 hours a day, 150 days a year at 18.48¢/kWh.

How many kilowatt-hours does a 3D printer use?

Roughly 65 kWh a year under these assumptions, or 0.07 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 $11.86 a year.

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Cost to run a 3D printer in Delaware (July 2026 rates)

At 18.48¢ per kilowatt-hour — Delaware's average residential price in July 2026 — running a 3D printer costs $11.98 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 $10.74 to $11.98 a year.

Per hour: 1.3¢
Per day of use: 8.0¢
Per month: 99.8¢
Per year: $11.98

Assumption: 120 W at a 60% duty cycle, 6 hours a day, 150 days a year — 65 kWh a year. A consumer FDM printer mid-print. The heated bed dominates the draw, and an enclosure lowers the duty cycle by holding heat in. 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 11.0¢ more a year than the typical U.S. household pays for the same use. Running the same 3D printer costs $8.24 a year in Louisiana and $31.10 in Hawaii, so where you live changes this bill by $22.86 a year.

State	Rate	Per month	Per year
Minnesota	17.45¢	94.2¢	$11.31
Virginia	17.55¢	94.8¢	$11.37
Delaware	18.48¢	99.8¢	$11.98
Wisconsin	19.06¢	$1.03	$12.35
Illinois	19.22¢	$1.04	$12.45

States ranked by average residential price, cheapest first. See all 51 states for a 3D printer.

What else costs about the same in Delaware

Computer monitor$11.09 a year in DE Security camera$8.09 a year in DE Ceiling fan$15.97 a year in DE

Cutting the number down

The heated bed, not the hotend, is the load. Lowering bed temperature after the first layers cuts the average draw.
Long prints are cheap per hour but numerous: a week of continuous printing is a real line item.

Questions

How much does a 3D printer cost per month in Delaware?: About 99.8¢ a month, assuming 120 W at a 60% duty cycle, 6 hours a day, 150 days a year at 18.48¢/kWh.
How many kilowatt-hours does a 3D printer use?: Roughly 65 kWh a year under these assumptions, or 0.07 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 $11.86 a year.