Cost to Run a Ductless Mini-Split in South Carolina
South Carolina's average residential electricity rate is 15.5¢/kWh as of July 2026 — the 20th cheapest in the country, 15% below the U.S. average. At typical usage (8 hours/day), a ductless mini-split here costs $30.16 per month.
Per hour
$0.12
at 400–2,000 W
Per day
$0.99
8 hours/day
Per month
$30.16
195 kWh
Per year
$362
2,336 kWh
By usage level in South Carolina
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.50 | $15.08 | $181 |
| Typical (8 hrs/day) | $0.99 | $30.16 | $362 |
| Heavy (16 hrs/day) | $1.98 | $60.31 | $724 |
South Carolina vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a ductless mini-split in South Carolina?
At South Carolina's current average residential rate of 15.5¢/kWh (July 2026), a ductless mini-split with typical usage costs about $0.99 per day, $30.16 per month, or $362 per year.
Is running a ductless mini-split in South Carolina more expensive than average?
No — it's cheaper. South Carolina's rate is about 15% below the U.S. average: $30.16 per month here versus $35.60 nationally.
What does electricity cost in South Carolina right now?
South Carolina residents pay an average of 15.5¢ per kWh as of July 2026 — the 20th cheapest rate of the 51 U.S. jurisdictions we track.