Window AC Electricity Calculator in Delaware

A window ac in Delaware costs about $40.59 a month ($493.80 a year) to run at the state's average rate of 18.79 ¢/kWh. Use this calculator to compare light, typical, and heavy use.

Delaware average rate
18.79 ¢/kWh
Assumed wattage
900 W
Typical usage pattern
8 hours/day
Typical monthly cost
$40.59
Typical yearly cost
$493.80

Key metrics

MetricValue
Delaware average rate18.79 ¢/kWh
Assumed wattage900 W
Typical usage pattern8 hours/day
Typical monthly cost$40.59
Typical yearly cost$493.80

Window AC in Delaware vs U.S. benchmark

Delaware monthly estimate
$40.59
U.S. monthly estimate
$41.73
Difference
-$1.14
State rate
18.79 ¢/kWh

Calculator assumptions

This calculator uses a typical wattage range of 500-1,500 W, and we assume 900 watts for 8 hours/day. The formula is kWh = (watts × hours) / 1000.

At this profile, the appliance uses 216.0 kWh per month and 2628.0 kWh per year.

Appliance calculator scenarios

ScenarioHours/dayAnnual energyDelaware monthlyU.S. monthlyDelaware yearly
Light usage4 hours/day1314.0 kWh$20.29$20.87$246.90
Typical usage8 hours/day2628.0 kWh$40.59$41.73$493.80
Heavy usage12 hours/day3942.0 kWh$60.88$62.60$740.70

Appliance cost reference page

Want the full write-up? The appliance page below uses the same rate and wattage assumptions:

More comparison links

Browse related comparisons from the energy comparison hub:

Compare options

Compare electricity options in Delaware

Compare retail electricity plans and provider options available in Delaware.

View plans in Delaware · Delaware calculator

Stay informed

Track Delaware electricity changes

Get notified about 216 kWh rate changes and savings opportunities in Delaware.

Join the newsletter · Delaware alerts

Other appliance calculators in Delaware

State cost and bill pathways for Delaware

Historical and trend pages

Fixed-usage and calculator pathways

Appliance and estimator pathways

State comparison pathways for Delaware

Discovery and navigation hubs

Consumer electricity drivers

Source & Method

Source: U.S. Energy Information Administration (EIA) Retail Sales of Electricity. Updated: April 2026. Estimates use the EIA average all-in residential rate (delivery included); they don't add separately billed taxes, fixed charges, or other utility fees, which vary by utility. For how rates and estimates are defined, see the methodology hub.

Disclaimers

Manifest: 10cf58e6c720…
View release.json·View capabilities.json