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Cost to run a central air conditioner in Maine
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$1.12/hour
Central Air Conditioner at 3,500 W in Maine (32.11¢/kWh) · $273.32/month at 8 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $1.12 | $34.17 | $410.21 |
| 2 h/day | $2.25 | $68.33 | $820.41 |
| 4 h/day | $4.50 | $136.66 | $1,640.82 |
| 8 h/day | $8.99 | $273.32 | $3,281.64 |
| 12 h/day | $13.49 | $409.98 | $4,922.46 |
| 24 h/day | $26.97 | $819.96 | $9,844.93 |
A 3-ton central AC typically draws 3,000-4,000 W while running; SEER rating and duct losses matter.
Same appliance, nearby states
| State | ¢/kWh | Per month |
|---|---|---|
| Maine | 32.11 | $273.32 |
| Alaska | 29.41 | $250.34 |
| California | 29.75 | $253.23 |
| Massachusetts | 30.48 | $259.45 |
| Hawaii | 47.18 | $401.60 |
FAQ
How much does it cost to run a central air conditioner in Maine?
At 3,500 W and 32.11¢/kWh: $1.12 per hour, $8.99 per day and $273.32 per month at 8 h/day.
How does Maine compare with other states?
The same use costs $108.27/month in Nevada (cheapest) and $401.60/month in Hawaii (most expensive); the US average is $154.58.
Price: EIA Electric Power Monthly, Table 5.6.A (residential, August 2026 preliminary; released October 23, 2026).
Central Air Conditioner cost calculator · Electricity cost in Maine
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