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Cost to run an electric water heater in Kentucky
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$0.55/hour
Electric Water Heater at 4,000 W in Kentucky (13.80¢/kWh) · $50.34/month at 3 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $0.55 | $16.78 | $201.48 |
| 2 h/day | $1.10 | $33.56 | $402.96 |
| 3 h/day | $1.66 | $50.34 | $604.44 |
| 4 h/day | $2.21 | $67.12 | $805.92 |
| 8 h/day | $4.42 | $134.25 | $1,611.84 |
| 12 h/day | $6.62 | $201.37 | $2,417.76 |
| 24 h/day | $13.25 | $402.74 | $4,835.52 |
Tank water heaters use 3,000-5,500 W elements; a family typically runs them 2-4 hours a day. Heat-pump models use about a third.
Same appliance, nearby states
FAQ
How much does it cost to run an electric water heater in Kentucky?
At 4,000 W and 13.80¢/kWh: $0.55 per hour, $1.66 per day and $50.34 per month at 3 h/day.
How does Kentucky compare with other states?
The same use costs $46.40/month in Nevada (cheapest) and $172.11/month in Hawaii (most expensive); the US average is $66.25.
Price: EIA Electric Power Monthly, Table 5.6.A (residential, August 2026 preliminary; released October 23, 2026).
Electric Water Heater cost calculator · Electricity cost in Kentucky
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