Swamp cooler (evaporative) Electricity Cost in South Carolina — $14.79/month (2026)
South Carolina monthly
$14.79
U.S. average monthly
$17.26
Difference
-$2.47
← Swamp cooler (evaporative) (all states) · South Carolina electricity rate
Quick rate
Daily cost
$0.49
Monthly cost
$14.79
+$0.00 vs typical
Yearly cost
$179.99
kWh / month
96.0 kWh
Local monthly estimate: $14.79 · U.S. average equivalent: $17.26
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ad-after-calculator Quick answer
Running a typical swamp cooler (evaporative) in South Carolina costs about $0.49/day or $14.79/month at roughly $0.154/kWh, assuming 8 hours of use per day at 400 W. The U.S. average rate is about $0.180/kWh, so South Carolina is roughly 14% lower than average for this estimate.
vs U.S. average
Local rate (South Carolina)
$0.154/kWh
Monthly estimate: $14.79
U.S. average rate
$0.180/kWh
Monthly estimate: $17.26
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ad-after-state-table FAQ
- Most swamp cooler (evaporative) units fall between 200 W and 800 W, with 400 W as a typical value for estimates.
- Our calculator uses 400 W as the typical wattage, within a reported range of 200–800 W.
- At 8 hours/day and 400 W, the estimate is about 3.20 kWh per day.
- Using 8 hours/day, the estimate is about 96.0 kWh per month.
- Per hour, swamp cooler (evaporative) uses about 0.400 kWh (at 400 W).
- At typical use (400 W and 8 hours/day), the estimate is about $0.49/day at roughly $0.154/kWh.
- At typical use (400 W and 8 hours/day), the estimate is about $14.79/month at roughly $0.154/kWh.
- Running for one hour at 400 W costs about $0.062 per hour (using the South Carolina rate of about $0.154/kWh).
- For typical use, the calculator estimates about $14.79/month for swamp cooler (evaporative) in South Carolina.
- At the typical South Carolina residential rate, the estimate is about 96.0 kWh per month, which corresponds to roughly $14.79/month for swamp cooler (evaporative).
- Compared to the U.S. average, South Carolina is about 14% lower for this estimate. Monthly cost is about $14.79 in South Carolina vs $17.26 at the national average.
- Start with practical steps from our tips list (e.g., Seal air leaks and improve insulation to reduce run-time.). Smaller changes reduce kWh usage, which reduces the bill at your local rate.
How many watts does a swamp cooler (evaporative) use?
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How many kWh does a swamp cooler (evaporative) use per day in South Carolina?
How many kWh does a swamp cooler (evaporative) use per month in South Carolina?
How many kWh does a swamp cooler (evaporative) use per hour?
How much does it cost to run a swamp cooler (evaporative) per day in South Carolina?
How much does it cost to run a swamp cooler (evaporative) per month in South Carolina?
How much does it cost to run a swamp cooler (evaporative) per hour in South Carolina?
What is the swamp cooler (evaporative) electricity cost per month in South Carolina?
How much does swamp cooler (evaporative) add to my electric bill in South Carolina?
What is the impact on electric bill of swamp cooler (evaporative) in South Carolina?
How to reduce swamp cooler (evaporative) electricity cost in South Carolina?
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Est. monthly at South Carolina rate ($0.154/kWh)