Data through April 2026
Cost to run · Louisiana · 14.4¢/kWh residential average
How much does it cost to run an electric water heater in Louisiana?
$156/yr · median certified model
Louisiana's 14.4¢/kWh rate undercuts the national average by 23%, so the typical certified electric water heater costs roughly $156 a year here instead of $204.
Louisiana ranks 12 of 51 jurisdictions for electric water heater running costs — solidly mid-table. At local rates, certified models span $93 (Friedrich PROH40 T2 FD400-15) to $251 (Smart Solar SSG2-ES 120) per year — $159 of annual headroom that depends entirely on which unit you buy. For reference, the national extremes are North Dakota (12.3¢/kWh) and Hawaii (46.6¢/kWh); the same median electric water heater would cost $134 and $504 a year there.
The cheapest water heaters (electric) to run at Louisiana rates
| # | Model | kWh/yr | $/yr in LA |
|---|---|---|---|
| 1 | Friedrich PROH40 T2 FD400-15 | 643 | $93 |
| 2 | Rheem PROPH40 T2 RH375-15 | 643 | $93 |
| 3 | Rheem PROPH40 T2 RH400-15 | 643 | $93 |
| 4 | Rheem XE40T10H22U0 | 643 | $93 |
| 5 | Rheem XE40T10H22U1 | 643 | $93 |
| 6 | Richmond 10E40-HP515 | 643 | $93 |
| 7 | Richmond 10E40-HP5U15 | 643 | $93 |
| 8 | Ruud PROUH40 T2 RU375-15 | 643 | $93 |
| 9 | Ruud PROUH40 T2 RU400-15 | 643 | $93 |
| 10 | Eco-Logical OMNI-50HP1-1A | 681 | $98 |
Price any model at Louisiana rates
Your rate, your numbers
- Per day
- 43¢
- Per month
- $13.02
- Per year
- $156
1,082 kWh/yr × 14.4¢/kWh = $156/yr
Prefilled with the median certified electric water heater (1,082 kWh/yr). Every model page on this site carries its exact certified figure.
Questions, answered with the data
- How much does it cost to run an electric water heater in Louisiana?
- About $156 a year for the median ENERGY STAR certified electric water heater, at Louisiana's average residential rate of 14.4¢/kWh — that's $13.02 a month.
- Is electricity expensive in Louisiana?
- Louisiana's residential average of 14.4¢/kWh is 23% below the U.S. average of 18.8¢/kWh, ranking 12 of 51 jurisdictions (1 = cheapest).
- What's the cheapest electric water heater to run in Louisiana?
- Among currently certified models, the Friedrich PROH40 T2 FD400-15 costs the least at about $93 a year at Louisiana rates (643 kWh/yr).
- How does Louisiana compare with other states?
- The same median electric water heater costs $134 a year in North Dakota (the cheapest state) and $504 in Hawaii (the priciest). Louisiana sits at $156.
Keep digging
- All certified water heaters (electric) compared
- Water Heaters (Electric) costs in Nevada (rank 10 of 51)
- Water Heaters (Electric) costs in Washington (rank 11 of 51)
- Water Heaters (Electric) costs in South Dakota (rank 13 of 51)
- Water Heaters (Electric) costs in Wyoming (rank 14 of 51)
- Running an air purifier in Louisiana
- Running a clothes dryer in Louisiana
- Running a clothes washer in Louisiana
- Running a computer monitor in Louisiana
Rate source: US EIA, average residential price of electricity, see methodology.