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Cost to run a central air conditioner in Louisiana
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$0.45/hour
Central Air Conditioner at 3,500 W in Louisiana (12.87¢/kWh) · $109.55/month at 8 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $0.45 | $13.69 | $164.41 |
| 2 h/day | $0.90 | $27.39 | $328.83 |
| 4 h/day | $1.80 | $54.77 | $657.66 |
| 8 h/day | $3.60 | $109.55 | $1,315.31 |
| 12 h/day | $5.41 | $164.32 | $1,972.97 |
| 24 h/day | $10.81 | $328.65 | $3,945.94 |
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 |
|---|---|---|
| Louisiana | 12.87 | $109.55 |
| Nevada | 12.72 | $108.27 |
| North Dakota | 13.31 | $113.29 |
| Utah | 13.31 | $113.29 |
| Idaho | 13.37 | $113.81 |
FAQ
How much does it cost to run a central air conditioner in Louisiana?
At 3,500 W and 12.87¢/kWh: $0.45 per hour, $3.60 per day and $109.55 per month at 8 h/day.
How does Louisiana 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 Louisiana
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