Portable AC Electricity Cost in Massachusetts — $89.74/month (2026)
Massachusetts monthly
$89.74
U.S. average monthly
$51.78
Difference
+$37.96
← Portable AC (all states) · Massachusetts electricity rate
Quick rate
Daily cost
$2.99
Monthly cost
$89.74
+$0.00 vs typical
Yearly cost
$1091.85
kWh / month
288.0 kWh
Local monthly estimate: $89.74 · U.S. average equivalent: $51.78
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ad-after-calculator Quick answer
Running a typical portable ac in Massachusetts costs about $2.99/day or $89.74/month at roughly $0.312/kWh, assuming 8 hours of use per day at 1200 W. The U.S. average rate is about $0.180/kWh, so Massachusetts is roughly 73% higher than average for this estimate.
vs U.S. average
Local rate (Massachusetts)
$0.312/kWh
Monthly estimate: $89.74
U.S. average rate
$0.180/kWh
Monthly estimate: $51.78
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ad-after-state-table FAQ
- Most portable ac units fall between 800 W and 2000 W, with 1200 W as a typical value for estimates.
- Our calculator uses 1200 W as the typical wattage, within a reported range of 800–2000 W.
- At 8 hours/day and 1200 W, the estimate is about 9.60 kWh per day.
- Using 8 hours/day, the estimate is about 288.0 kWh per month.
- Per hour, portable ac uses about 1.200 kWh (at 1200 W).
- At typical use (1200 W and 8 hours/day), the estimate is about $2.99/day at roughly $0.312/kWh.
- At typical use (1200 W and 8 hours/day), the estimate is about $89.74/month at roughly $0.312/kWh.
- Running for one hour at 1200 W costs about $0.374 per hour (using the Massachusetts rate of about $0.312/kWh).
- For typical use, the calculator estimates about $89.74/month for portable ac in Massachusetts.
- At the typical Massachusetts residential rate, the estimate is about 288.0 kWh per month, which corresponds to roughly $89.74/month for portable ac.
- Compared to the U.S. average, Massachusetts is about 73% higher for this estimate. Monthly cost is about $89.74 in Massachusetts vs $51.78 at the national average.
- Start with practical steps from our tips list (e.g., Seal air leaks and improve insulation to reduce run-time.). Smaller changes reduce kWh usage, which reduces the bill at your local rate.
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Est. monthly at Massachusetts rate ($0.312/kWh)