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Cost to run a dehumidifier in South Carolina
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$0.07/hour
Dehumidifier at 450 W in South Carolina (15.76¢/kWh) · $21.56/month at 10 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $0.07 | $2.16 | $25.89 |
| 2 h/day | $0.14 | $4.31 | $51.77 |
| 4 h/day | $0.28 | $8.62 | $103.54 |
| 8 h/day | $0.57 | $17.25 | $207.09 |
| 10 h/day | $0.71 | $21.56 | $258.86 |
| 12 h/day | $0.85 | $25.87 | $310.63 |
| 24 h/day | $1.70 | $51.74 | $621.26 |
Portable dehumidifiers draw about 300-700 W; Energy Star models remove more water per kWh.
Same appliance, nearby states
| State | ¢/kWh | Per month |
|---|---|---|
| South Carolina | 15.76 | $21.56 |
| South Dakota | 15.15 | $20.73 |
| Kansas | 15.47 | $21.16 |
| Montana | 15.57 | $21.30 |
| Georgia | 15.90 | $21.75 |
| Texas | 15.91 | $21.76 |
| Oregon | 15.92 | $21.78 |
FAQ
How much does it cost to run a dehumidifier in South Carolina?
At 450 W and 15.76¢/kWh: $0.07 per hour, $0.71 per day and $21.56 per month at 10 h/day.
How does South Carolina compare with other states?
The same use costs $17.40/month in Nevada (cheapest) and $64.54/month in Hawaii (most expensive); the US average is $24.84.
Price: EIA Electric Power Monthly, Table 5.6.A (residential, August 2026 preliminary; released October 23, 2026).
Dehumidifier cost calculator · Electricity cost in South Carolina
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