Cost to Run a Portable 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 portable air conditioner here costs $78.80 per month.
Per hour
$0.32
at 700–1,500 W
Per day
$2.59
8 hours/day
Per month
$78.80
243 kWh
Per year
$946
2,920 kWh
By usage level in Maine
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $1.30 | $39.40 | $473 |
| Typical (8 hrs/day) | $2.59 | $78.80 | $946 |
| Heavy (16 hrs/day) | $5.18 | $158 | $1,892 |
Maine vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a portable air conditioner in Maine?
At Maine's current average residential rate of 32.4¢/kWh (July 2026), a portable air conditioner with typical usage costs about $2.59 per day, $78.80 per month, or $946 per year.
Is running a portable 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 $78.80 per month here versus $44.51 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.