WattCost

Data through June 2026

Cost to run · Pennsylvania · 21.7¢/kWh residential average

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

$263/yr · median certified model

Pennsylvania pays 21.7¢/kWh for residential power — 18% above the national average — lifting the median certified electric water heater to about $263 a year, versus $222 nationally.

Pennsylvania ranks 37 of 51 jurisdictions for electric water heater running costs — solidly mid-table. At local rates, certified models span $148 (Eco-Logical OMNI-50HP1-1A) to $378 (Smart Solar SSG2-ES 120) per year — $230 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.

Pennsylvania
$263
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 Pennsylvania rates

Price any model at Pennsylvania rates

Your rate, your numbers

Per day
72¢
Per month
$21.91
Per year
$263

1,210 kWh/yr × 21.7¢/kWh = $263/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 Pennsylvania?
About $263 a year for the median ENERGY STAR certified electric water heater, at Pennsylvania's average residential rate of 21.7¢/kWh — that's $21.91 a month.
Is electricity expensive in Pennsylvania?
Pennsylvania's residential average of 21.7¢/kWh is 18% above the U.S. average of 18.3¢/kWh, ranking 37 of 51 jurisdictions (1 = cheapest).
What's the cheapest electric water heater to run in Pennsylvania?
Among currently certified models, the Eco-Logical OMNI-50HP1-1A costs the least at about $148 a year at Pennsylvania rates (681 kWh/yr).
How does Pennsylvania 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). Pennsylvania sits at $263.

Keep digging

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