Cost to Run a Central Air Conditioner in Maine
Maine's average residential electricity rate is 32.4¢/kWh as of July 2026 — the 49th cheapest in the country, 77% above the U.S. average. At typical usage (8 hours/day), a central air conditioner here costs $276 per month.
Per hour
$1.13
at 2,000–5,000 W
Per day
$9.07
8 hours/day
Per month
$276
851 kWh
Per year
$3,311
10,220 kWh
By usage level in Maine
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $4.54 | $138 | $1,656 |
| Typical (8 hrs/day) | $9.07 | $276 | $3,311 |
| Heavy (16 hrs/day) | $18.14 | $552 | $6,623 |
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 32.4¢/kWh (July 2026), a central air conditioner with typical usage costs about $9.07 per day, $276 per month, or $3,311 per year.
Is running a central air conditioner in Maine more expensive than average?
Yes. Maine's electricity costs about 77% more than the U.S. average, so the same usage costs $276 per month here versus $156 nationally.
What does electricity cost in Maine right now?
Maine residents pay an average of 32.4¢ per kWh as of July 2026 — the 49th cheapest rate of the 51 U.S. jurisdictions we track.