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Cost to run a window air conditioner in Maine
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$0.29/hour
Window Air Conditioner at 900 W in Maine (32.11¢/kWh) · $70.28/month at 8 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $0.29 | $8.79 | $105.48 |
| 2 h/day | $0.58 | $17.57 | $210.96 |
| 4 h/day | $1.16 | $35.14 | $421.93 |
| 8 h/day | $2.31 | $70.28 | $843.85 |
| 12 h/day | $3.47 | $105.42 | $1,265.78 |
| 24 h/day | $6.94 | $210.85 | $2,531.55 |
A 8,000-10,000 BTU window unit draws roughly 700-1,000 W while the compressor runs.
Same appliance, nearby states
| State | ¢/kWh | Per month |
|---|---|---|
| Maine | 32.11 | $70.28 |
| Alaska | 29.41 | $64.37 |
| California | 29.75 | $65.12 |
| Massachusetts | 30.48 | $66.71 |
| Hawaii | 47.18 | $103.27 |
FAQ
How much does it cost to run a window air conditioner in Maine?
At 900 W and 32.11¢/kWh: $0.29 per hour, $2.31 per day and $70.28 per month at 8 h/day.
How does Maine compare with other states?
The same use costs $27.84/month in Nevada (cheapest) and $103.27/month in Hawaii (most expensive); the US average is $39.75.
Price: EIA Electric Power Monthly, Table 5.6.A (residential, August 2026 preliminary; released October 23, 2026).
Window Air Conditioner cost calculator · Electricity cost in Maine
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