How much does a computer monitor cost per month in Delaware?

About 92.4¢ a month, assuming 30 W, 8 hours a day, 250 days a year at 18.48¢/kWh.

How many kilowatt-hours does a computer monitor use?

Roughly 60 kWh a year under these assumptions, or 0.03 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 $10.99 a year.

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Cost to run a computer monitor in Delaware (July 2026 rates)

At 18.48¢ per kilowatt-hour — Delaware's average residential price in July 2026 — running a computer monitor costs $11.09 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 $9.95 to $11.09 a year.

Per hour: 0.6¢
Per day of use: 4.4¢
Per month: 92.4¢
Per year: $11.09

Assumption: 30 W, 8 hours a day, 250 days a year — 60 kWh a year. A 27-inch IPS panel at moderate brightness. Larger, brighter or HDR panels run two to three times this. 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 10.2¢ more a year than the typical U.S. household pays for the same use. Running the same computer monitor costs $7.63 a year in Louisiana and $28.80 in Hawaii, so where you live changes this bill by $21.17 a year.

State	Rate	Per month	Per year
Minnesota	17.45¢	87.2¢	$10.47
Virginia	17.55¢	87.8¢	$10.53
Delaware	18.48¢	92.4¢	$11.09
Wisconsin	19.06¢	95.3¢	$11.44
Illinois	19.22¢	96.1¢	$11.53

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

What else costs about the same in Delaware

3d printer$11.98 a year in DE Security camera$8.09 a year in DE Electric pressure cooker$7.76 a year in DE

Cutting the number down

Brightness is the dominant variable. Dropping from 100% to 60% is a real cut in draw and usually more comfortable.

Questions

How much does a computer monitor cost per month in Delaware?: About 92.4¢ a month, assuming 30 W, 8 hours a day, 250 days a year at 18.48¢/kWh.
How many kilowatt-hours does a computer monitor use?: Roughly 60 kWh a year under these assumptions, or 0.03 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 $10.99 a year.