Cost to Run a Portable Air Conditioner in Tennessee
Tennessee's average residential electricity rate is 14.5¢/kWh as of May 2026 — the 12th cheapest in the country, 21% below the U.S. average. At typical usage (8 hours/day), a portable air conditioner here costs $35.26 per month.
Per hour
$0.14
at 700–1,500 W
Per day
$1.16
8 hours/day
Per month
$35.26
243 kWh
Per year
$423
2,920 kWh
By usage level in Tennessee
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.58 | $17.63 | $212 |
| Typical (8 hrs/day) | $1.16 | $35.26 | $423 |
| Heavy (16 hrs/day) | $2.32 | $70.53 | $847 |
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 14.5¢/kWh (May 2026), a portable air conditioner with typical usage costs about $1.16 per day, $35.26 per month, or $423 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: $35.26 per month here versus $44.75 nationally.
What does electricity cost in Tennessee right now?
Tennessee residents pay an average of 14.5¢ per kWh as of May 2026 — the 12th cheapest rate of the 51 U.S. jurisdictions we track.