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Cost to run a window air conditioner in New Hampshire
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$0.25/hour
Window Air Conditioner at 900 W in New Hampshire (27.64¢/kWh) · $60.50/month at 8 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $0.25 | $7.56 | $90.80 |
| 2 h/day | $0.50 | $15.12 | $181.59 |
| 4 h/day | $1.00 | $30.25 | $363.19 |
| 8 h/day | $1.99 | $60.50 | $726.38 |
| 12 h/day | $2.99 | $90.75 | $1,089.57 |
| 24 h/day | $5.97 | $181.50 | $2,179.14 |
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 |
|---|---|---|
| New Hampshire | 27.64 | $60.50 |
| Connecticut | 24.51 | $53.65 |
| New Jersey | 24.61 | $53.87 |
| District of Columbia | 25.98 | $56.87 |
| Rhode Island | 28.18 | $61.68 |
| New York | 28.65 | $62.71 |
| Alaska | 29.41 | $64.37 |
FAQ
How much does it cost to run a window air conditioner in New Hampshire?
At 900 W and 27.64¢/kWh: $0.25 per hour, $1.99 per day and $60.50 per month at 8 h/day.
How does New Hampshire 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 New Hampshire
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