WattCost

Data through June 2026

Cost to run · Louisiana · 13.5¢/kWh residential average

How much does it cost to run an electric water heater in Louisiana?

$163/yr · median certified model

Louisiana's 13.5¢/kWh rate undercuts the national average by 26%, so the typical certified electric water heater costs roughly $163 a year here instead of $222.

Out of all 50 states plus D.C., Louisiana is the #4 cheapest place to run an electric water heater. At local rates, certified models span $92 (Eco-Logical OMNI-50HP1-1A) to $235 (Smart Solar SSG2-ES 120) per year — $143 of annual headroom that depends entirely on which unit you buy. For reference, the national extremes are Nevada (13.1¢/kWh) and Hawaii (52.7¢/kWh); the same median electric water heater would cost $159 and $638 a year there.

Louisiana
$163
US average
$222
Nevada
$159
Hawaii
$638
Median certified electric water heater (1,210 kWh/yr) per year, at each rate

The cheapest water heaters (electric) to run at Louisiana rates

Price any model at Louisiana rates

Your rate, your numbers

Per day
45¢
Per month
$13.60
Per year
$163

1,210 kWh/yr × 13.5¢/kWh = $163/yr

Prefilled with the median certified electric water heater (1,210 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 $163 a year for the median ENERGY STAR certified electric water heater, at Louisiana's average residential rate of 13.5¢/kWh — that's $13.60 a month.
Is electricity expensive in Louisiana?
Louisiana's residential average of 13.5¢/kWh is 26% below the U.S. average of 18.3¢/kWh, ranking 4 of 51 jurisdictions (1 = cheapest).
What's the cheapest electric water heater to run in Louisiana?
Among currently certified models, the Eco-Logical OMNI-50HP1-1A costs the least at about $92 a year at Louisiana rates (681 kWh/yr).
How does Louisiana compare with other states?
The same median electric water heater costs $159 a year in Nevada (the cheapest state) and $638 in Hawaii (the priciest). Louisiana sits at $163.

Keep digging

Rate source: US EIA, average residential price of electricity, see methodology.