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Cost to run a window air conditioner in Connecticut
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$0.22/hour
Window Air Conditioner at 900 W in Connecticut (24.51¢/kWh) · $53.65/month at 8 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $0.22 | $6.71 | $80.52 |
| 2 h/day | $0.44 | $13.41 | $161.03 |
| 4 h/day | $0.88 | $26.82 | $322.06 |
| 8 h/day | $1.76 | $53.65 | $644.12 |
| 12 h/day | $2.65 | $80.47 | $966.18 |
| 24 h/day | $5.29 | $160.94 | $1,932.37 |
A 8,000-10,000 BTU window unit draws roughly 700-1,000 W while the compressor runs.
Same appliance, nearby states
| State | ¢/kWh | Per month |
|---|---|---|
| Connecticut | 24.51 | $53.65 |
| Pennsylvania | 21.77 | $47.65 |
| Michigan | 22.99 | $50.32 |
| Vermont | 23.84 | $52.18 |
| New Jersey | 24.61 | $53.87 |
| District of Columbia | 25.98 | $56.87 |
| New Hampshire | 27.64 | $60.50 |
FAQ
How much does it cost to run a window air conditioner in Connecticut?
At 900 W and 24.51¢/kWh: $0.22 per hour, $1.76 per day and $53.65 per month at 8 h/day.
How does Connecticut compare with other states?
The same use costs $27.84/month in Nevada (cheapest) and $103.27/month in Hawaii (most expensive); the US average is $39.75.
Price: EIA Electric Power Monthly, Table 5.6.A (residential, August 2026 preliminary; released October 23, 2026).
Window Air Conditioner cost calculator · Electricity cost in Connecticut
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