Cost to Run a Portable Air Conditioner in Massachusetts
Massachusetts's average residential electricity rate is 30.5¢/kWh as of July 2026 — the 48th cheapest in the country, 67% above the U.S. average. At typical usage (8 hours/day), a portable air conditioner here costs $74.18 per month.
Per hour
$0.30
at 700–1,500 W
Per day
$2.44
8 hours/day
Per month
$74.18
243 kWh
Per year
$891
2,920 kWh
By usage level in Massachusetts
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $1.22 | $37.09 | $445 |
| Typical (8 hrs/day) | $2.44 | $74.18 | $891 |
| Heavy (16 hrs/day) | $4.88 | $148 | $1,781 |
Massachusetts 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 Massachusetts?
At Massachusetts's current average residential rate of 30.5¢/kWh (July 2026), a portable air conditioner with typical usage costs about $2.44 per day, $74.18 per month, or $891 per year.
Is running a portable air conditioner in Massachusetts more expensive than average?
Yes. Massachusetts's electricity costs about 67% more than the U.S. average, so the same usage costs $74.18 per month here versus $44.51 nationally.
What does electricity cost in Massachusetts right now?
Massachusetts residents pay an average of 30.5¢ per kWh as of July 2026 — the 48th cheapest rate of the 51 U.S. jurisdictions we track.