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Cost to run an electric water heater in Mississippi
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$0.58/hour
Electric Water Heater at 4,000 W in Mississippi (14.43¢/kWh) · $52.64/month at 3 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $0.58 | $17.55 | $210.68 |
| 2 h/day | $1.15 | $35.09 | $421.36 |
| 3 h/day | $1.73 | $52.64 | $632.03 |
| 4 h/day | $2.31 | $70.19 | $842.71 |
| 8 h/day | $4.62 | $140.38 | $1,685.42 |
| 12 h/day | $6.93 | $210.56 | $2,528.14 |
| 24 h/day | $13.85 | $421.13 | $5,056.27 |
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
| State | ¢/kWh | Per month |
|---|---|---|
| Mississippi | 14.43 | $52.64 |
| Nebraska | 13.54 | $49.39 |
| Kentucky | 13.80 | $50.34 |
| Arkansas | 14.37 | $52.42 |
| Wyoming | 14.43 | $52.64 |
| Washington | 14.63 | $53.37 |
| Oklahoma | 14.82 | $54.06 |
FAQ
How much does it cost to run an electric water heater in Mississippi?
At 4,000 W and 14.43¢/kWh: $0.58 per hour, $1.73 per day and $52.64 per month at 3 h/day.
How does Mississippi 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 Mississippi
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