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Cost to run a central air conditioner in South Dakota
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$0.53/hour
Central Air Conditioner at 3,500 W in South Dakota (15.15¢/kWh) · $128.96/month at 8 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $0.53 | $16.12 | $193.54 |
| 2 h/day | $1.06 | $32.24 | $387.08 |
| 4 h/day | $2.12 | $64.48 | $774.16 |
| 8 h/day | $4.24 | $128.96 | $1,548.33 |
| 12 h/day | $6.36 | $193.44 | $2,322.50 |
| 24 h/day | $12.73 | $386.87 | $4,644.99 |
A 3-ton central AC typically draws 3,000-4,000 W while running; SEER rating and duct losses matter.
Same appliance, nearby states
| State | ¢/kWh | Per month |
|---|---|---|
| South Dakota | 15.15 | $128.96 |
| North Carolina | 14.95 | $127.25 |
| Florida | 14.99 | $127.59 |
| Arizona | 15.05 | $128.11 |
| Kansas | 15.47 | $131.68 |
| Montana | 15.57 | $132.53 |
| South Carolina | 15.76 | $134.15 |
FAQ
How much does it cost to run a central air conditioner in South Dakota?
At 3,500 W and 15.15¢/kWh: $0.53 per hour, $4.24 per day and $128.96 per month at 8 h/day.
How does South Dakota compare with other states?
The same use costs $108.27/month in Nevada (cheapest) and $401.60/month in Hawaii (most expensive); the US average is $154.58.
Price: EIA Electric Power Monthly, Table 5.6.A (residential, August 2026 preliminary; released October 23, 2026).
Central Air Conditioner cost calculator · Electricity cost in South Dakota
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