Cost to Run a Central Air Conditioner in Maine
Maine's average residential electricity rate is 28.6¢/kWh as of May 2026 — the 46th cheapest in the country, 55% above the U.S. average. At typical usage (8 hours/day), a central air conditioner here costs $243 per month.
Per hour
$1.00
at 2,000–5,000 W
Per day
$8.01
8 hours/day
Per month
$243
851 kWh
Per year
$2,923
10,220 kWh
By usage level in Maine
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $4.00 | $122 | $1,461 |
| Typical (8 hrs/day) | $8.01 | $243 | $2,923 |
| Heavy (16 hrs/day) | $16.02 | $487 | $5,846 |
Maine vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a central air conditioner in Maine?
At Maine's current average residential rate of 28.6¢/kWh (May 2026), a central air conditioner with typical usage costs about $8.01 per day, $243 per month, or $2,923 per year.
Is running a central air conditioner in Maine more expensive than average?
Yes. Maine's electricity costs about 55% more than the U.S. average, so the same usage costs $243 per month here versus $157 nationally.
What does electricity cost in Maine right now?
Maine residents pay an average of 28.6¢ per kWh as of May 2026 — the 46th cheapest rate of the 51 U.S. jurisdictions we track.