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Cost to run a central air conditioner in Pennsylvania
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$0.76/hour
Central Air Conditioner at 3,500 W in Pennsylvania (21.77¢/kWh) · $185.31/month at 8 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $0.76 | $23.16 | $278.11 |
| 2 h/day | $1.52 | $46.33 | $556.22 |
| 4 h/day | $3.05 | $92.65 | $1,112.45 |
| 8 h/day | $6.10 | $185.31 | $2,224.89 |
| 12 h/day | $9.14 | $277.96 | $3,337.34 |
| 24 h/day | $18.29 | $555.92 | $6,674.68 |
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 |
|---|---|---|
| Pennsylvania | 21.77 | $185.31 |
| Ohio | 19.38 | $164.96 |
| Wisconsin | 19.41 | $165.22 |
| Maryland | 21.40 | $182.16 |
| Michigan | 22.99 | $195.69 |
| Vermont | 23.84 | $202.93 |
| Connecticut | 24.51 | $208.63 |
FAQ
How much does it cost to run a central air conditioner in Pennsylvania?
At 3,500 W and 21.77¢/kWh: $0.76 per hour, $6.10 per day and $185.31 per month at 8 h/day.
How does Pennsylvania 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 Pennsylvania
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