Cost to Run a Portable Air Conditioner in Massachusetts
Massachusetts's average residential electricity rate is 28.8¢/kWh as of May 2026 — the 47th cheapest in the country, 57% above the U.S. average. At typical usage (8 hours/day), a portable air conditioner here costs $70.04 per month.
Per hour
$0.29
at 700–1,500 W
Per day
$2.30
8 hours/day
Per month
$70.04
243 kWh
Per year
$841
2,920 kWh
By usage level in Massachusetts
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $1.15 | $35.02 | $420 |
| Typical (8 hrs/day) | $2.30 | $70.04 | $841 |
| Heavy (16 hrs/day) | $4.61 | $140 | $1,682 |
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 28.8¢/kWh (May 2026), a portable air conditioner with typical usage costs about $2.30 per day, $70.04 per month, or $841 per year.
Is running a portable air conditioner in Massachusetts more expensive than average?
Yes. Massachusetts's electricity costs about 57% more than the U.S. average, so the same usage costs $70.04 per month here versus $44.75 nationally.
What does electricity cost in Massachusetts right now?
Massachusetts residents pay an average of 28.8¢ per kWh as of May 2026 — the 47th cheapest rate of the 51 U.S. jurisdictions we track.