WattCost

Data through April 2026

Cost to run · Idaho · 12.7¢/kWh residential average

How much does it cost to run a refrigerator in Idaho?

$44/yr · median certified model

Idaho's 12.7¢/kWh rate undercuts the national average by 33%, so the typical certified refrigerator costs roughly $44 a year here instead of $65.

That makes Idaho the #2 cheapest of the 51 U.S. jurisdictions for running a refrigerator. At local rates, certified models span $5.33 (Fisher & Paykel RS2435V2) to $102 (Jenn-Air JS48PPDUDE) per year — $97 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 refrigerator would cost $43 and $161 a year there.

Idaho
$44
US average
$65
North Dakota
$43
Hawaii
$161
Median certified refrigerator (345 kWh/yr) per year, at each rate

The cheapest refrigerators to run at Idaho rates

Price any model at Idaho rates

Your rate, your numbers

Per day
12¢
Per month
$3.65
Per year
$44

345 kWh/yr × 12.7¢/kWh = $44/yr

Prefilled with the median certified refrigerator (345 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 a refrigerator in Idaho?
About $44 a year for the median ENERGY STAR certified refrigerator, at Idaho's average residential rate of 12.7¢/kWh — that's $3.65 a month.
Is electricity expensive in Idaho?
Idaho's residential average of 12.7¢/kWh is 33% below the U.S. average of 18.8¢/kWh, ranking 2 of 51 jurisdictions (1 = cheapest).
What's the cheapest refrigerator to run in Idaho?
Among currently certified models, the Fisher & Paykel RS2435V2 costs the least at about $5.33 a year at Idaho rates (42 kWh/yr).
How does Idaho compare with other states?
The same median refrigerator costs $43 a year in North Dakota (the cheapest state) and $161 in Hawaii (the priciest). Idaho sits at $44.

Keep digging

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