Cost to Run a Portable 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 portable air conditioner here costs $69.07 per month.
Per hour
$0.28
at 700–1,500 W
Per day
$2.27
8 hours/day
Per month
$69.07
243 kWh
Per year
$829
2,920 kWh
By usage level in Maine
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $1.14 | $34.53 | $415 |
| Typical (8 hrs/day) | $2.27 | $69.07 | $829 |
| Heavy (16 hrs/day) | $4.54 | $138 | $1,659 |
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 28.4¢/kWh (April 2026), a portable air conditioner with typical usage costs about $2.27 per day, $69.07 per month, or $829 per year.
Is running a portable 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 $69.07 per month here versus $45.72 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.