Cost to Run a Portable Air Conditioner in Tennessee
Tennessee's average residential electricity rate is 14.9¢/kWh as of April 2026 — the 15th cheapest in the country, 21% below the U.S. average. At typical usage (8 hours/day), a portable air conditioner here costs $36.24 per month.
Per hour
$0.15
at 700–1,500 W
Per day
$1.19
8 hours/day
Per month
$36.24
243 kWh
Per year
$435
2,920 kWh
By usage level in Tennessee
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.60 | $18.12 | $218 |
| Typical (8 hrs/day) | $1.19 | $36.24 | $435 |
| Heavy (16 hrs/day) | $2.38 | $72.47 | $870 |
Tennessee 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 Tennessee?
At Tennessee's current average residential rate of 14.9¢/kWh (April 2026), a portable air conditioner with typical usage costs about $1.19 per day, $36.24 per month, or $435 per year.
Is running a portable air conditioner in Tennessee more expensive than average?
No — it's cheaper. Tennessee's rate is about 21% below the U.S. average: $36.24 per month here versus $45.72 nationally.
What does electricity cost in Tennessee right now?
Tennessee residents pay an average of 14.9¢ per kWh as of April 2026 — the 15th cheapest rate of the 51 U.S. jurisdictions we track.