Cost to Run a Heat Pump Water Heater in South Carolina
South Carolina's average residential electricity rate is 17.1¢/kWh as of April 2026 — the 29th cheapest in the country, 9% below the U.S. average. At typical usage (3 hours/day), a heat pump water heater here costs $15.60 per month.
Per hour
$0.17
at 400–1,500 W
Per day
$0.51
3 hours/day
Per month
$15.60
91 kWh
Per year
$187
1,095 kWh
By usage level in South Carolina
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (1.5 hrs/day) | $0.26 | $7.80 | $93.62 |
| Typical (3 hrs/day) | $0.51 | $15.60 | $187 |
| Heavy (6 hrs/day) | $1.03 | $31.19 | $374 |
South Carolina vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a heat pump water heater in South Carolina?
At South Carolina's current average residential rate of 17.1¢/kWh (April 2026), a heat pump water heater with typical usage costs about $0.51 per day, $15.60 per month, or $187 per year.
Is running a heat pump water heater in South Carolina more expensive than average?
No — it's cheaper. South Carolina's rate is about 9% below the U.S. average: $15.60 per month here versus $17.15 nationally.
What does electricity cost in South Carolina right now?
South Carolina residents pay an average of 17.1¢ per kWh as of April 2026 — the 29th cheapest rate of the 51 U.S. jurisdictions we track.