Cost to Run a Central Air Conditioner in Maine
Maine's average residential electricity rate is 28.4¢/kWh as of April 2026 — the 46th cheapest in the country, 51% above the U.S. average. At typical usage (8 hours/day), a central air conditioner here costs $242 per month.
Per hour
$0.99
at 2,000–5,000 W
Per day
$7.95
8 hours/day
Per month
$242
851 kWh
Per year
$2,902
10,220 kWh
By usage level in Maine
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $3.98 | $121 | $1,451 |
| Typical (8 hrs/day) | $7.95 | $242 | $2,902 |
| Heavy (16 hrs/day) | $15.90 | $483 | $5,805 |
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 28.4¢/kWh (April 2026), a central air conditioner with typical usage costs about $7.95 per day, $242 per month, or $2,902 per year.
Is running a central air conditioner in Maine more expensive than average?
Yes. Maine's electricity costs about 51% more than the U.S. average, so the same usage costs $242 per month here versus $160 nationally.
What does electricity cost in Maine right now?
Maine residents pay an average of 28.4¢ per kWh as of April 2026 — the 46th cheapest rate of the 51 U.S. jurisdictions we track.