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Cost to run an electric water heater in Rhode Island
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$1.13/hour
Electric Water Heater at 4,000 W in Rhode Island (28.18¢/kWh) · $102.80/month at 3 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $1.13 | $34.27 | $411.43 |
| 2 h/day | $2.25 | $68.53 | $822.86 |
| 3 h/day | $3.38 | $102.80 | $1,234.28 |
| 4 h/day | $4.51 | $137.07 | $1,645.71 |
| 8 h/day | $9.02 | $274.14 | $3,291.42 |
| 12 h/day | $13.53 | $411.20 | $4,937.14 |
| 24 h/day | $27.05 | $822.41 | $9,874.27 |
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 |
|---|---|---|
| Rhode Island | 28.18 | $102.80 |
| New Jersey | 24.61 | $89.78 |
| District of Columbia | 25.98 | $94.78 |
| New Hampshire | 27.64 | $100.83 |
| New York | 28.65 | $104.52 |
| Alaska | 29.41 | $107.29 |
| California | 29.75 | $108.53 |
FAQ
How much does it cost to run an electric water heater in Rhode Island?
At 4,000 W and 28.18¢/kWh: $1.13 per hour, $3.38 per day and $102.80 per month at 3 h/day.
How does Rhode Island 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 Rhode Island
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