What Does It Cost to Run a Window AC in Alabama?

Running a window ac in Alabama costs about $37.61 a month — $457.53 a year — at the state's average rate of 17.41 ¢/kWh. That's roughly $50.19 a year less than a household paying the national average pays for the exact same window ac. The estimate assumes a typical 900-watt window ac running 8 hours/day, at the all-in average rate (before separately billed taxes and fixed fees).

Average wattage assumption
900 W
Typical usage assumption
8 hours/day
Estimated monthly electricity use
216.0 kWh
Estimated monthly cost
$37.61
Estimated yearly cost
$457.53

Key metrics

MetricValue
Average wattage assumption900 W
Typical usage assumption8 hours/day
Estimated monthly electricity use216.0 kWh
Estimated monthly cost$37.61
Estimated yearly cost$457.53

Window AC cost vs U.S. average

Alabama average rate
17.41 ¢/kWh
Alabama monthly cost
$37.61
U.S. monthly cost
$41.73
Monthly difference
-$4.13

At the state average rate, a window ac in Alabama costs $4.13 less a month than it would at the U.S. average rate.

How much electricity does a window ac use?

A window ac draws roughly 500-1,500 W; we use 900 watts running 8 hours/day. That comes to 7.20 kWh a day — 216.0 kWh a month, or 2628.0 kWh over a year — using kWh = watts × hours ÷ 1000.

A window unit clicks on and off with the thermostat, so what it actually costs you rises and falls with the weather and where you set the dial. Nudging it up a couple degrees on a hot afternoon is the easiest way to spend less. Alabama prices that energy at 17.41 ¢/kWh, against a 19.32 ¢/kWh national average.

Window AC operating cost estimate in Alabama

Time periodEnergy useCost
Per hour0.90 kWh$0.16
Per day7.20 kWh$1.25
Per month216.0 kWh$37.61
Per year2628.0 kWh$457.53

These figures use the all-in average rate. Your actual bill can run higher when separately billed taxes, seasonal pricing, and fixed monthly fees apply.

What changes the cost the most?

Two things move this number: your state's rate, which you can't change, and how hard the appliance works, which you often can. For a window ac, that mostly comes down to BTU size, climate, thermostat setting.

Using yours more lightly or heavily than our assumption? The state calculator and usage-cost pages below model your exact scenario at the same rate.

For calculator-style comparisons, use the Window AC calculator in Alabama to compare light, typical, and heavy usage profiles.

Comparison entry points

Browse related comparisons from the energy comparison hub:

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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

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