Cost to Run a Portable Air Conditioner in North Carolina
North Carolina's average residential electricity rate is 15.1¢/kWh as of May 2026 — the 18th cheapest in the country, 18% below the U.S. average. At typical usage (8 hours/day), a portable air conditioner here costs $36.72 per month.
Per hour
$0.15
at 700–1,500 W
Per day
$1.21
8 hours/day
Per month
$36.72
243 kWh
Per year
$441
2,920 kWh
By usage level in North Carolina
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.60 | $18.36 | $220 |
| Typical (8 hrs/day) | $1.21 | $36.72 | $441 |
| Heavy (16 hrs/day) | $2.42 | $73.45 | $882 |
North Carolina 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 North Carolina?
At North Carolina's current average residential rate of 15.1¢/kWh (May 2026), a portable air conditioner with typical usage costs about $1.21 per day, $36.72 per month, or $441 per year.
Is running a portable air conditioner in North Carolina more expensive than average?
No — it's cheaper. North Carolina's rate is about 18% below the U.S. average: $36.72 per month here versus $44.75 nationally.
What does electricity cost in North Carolina right now?
North Carolina residents pay an average of 15.1¢ per kWh as of May 2026 — the 18th cheapest rate of the 51 U.S. jurisdictions we track.