Running cost for the Marathon MFF123SS
The Marathon MFF123SS is certified by ENERGY STAR at 316 kWh a year, cheaper than most models in its category to run among refrigerators currently certified.
That $59 is priced at 18.8¢/kWh, the average of all 51 state rates this site tracks. Your own state's rate is one click away.
Efficient, or not, for a refrigerator
Against the category average of 386 kWh/yr, this model uses 18.1% less, ranking 1,921 of 4,704 refrigerators tracked here for running cost. That average is drawn from all 4,704 refrigerators ENERGY STAR currently certifies, not an outside number, a $13/year gap from this model at the national rate. Full sourcing is in the sourcing notes.
Right next to it on the list
A rank or two either side of the Marathon MFF123SS: Frestec FR 1202 BK ($59/yr, 316 kWh/yr), then Marathon MFF123W ($59/yr, 316 kWh/yr).
Comparing Marathon's own models
Ranked 29 of Marathon's 57 certified refrigerators, this sits between the M4-100BLS ($25/yr, the brand's cheapest) and the MFF208WFD-2 ($87/yr, its priciest).
Marathon MFF123SS over 13 years
13 years is NAHB's typical service life for this category; at $59/year, the Marathon MFF123SS adds up to about $772 in electricity over that span.
Is it worth replacing?
Efficient as certified refrigerators go, $59/year is a reasonable baseline if you're comparing what else is on the market.
See what else is certified in this category before you decide.
If you're keeping it
$59/year to run is the predictable cost of the Marathon MFF123SS; a protection plan covers the unpredictable one, a repair bill.
Where this number comes from
The full Refrigerator category page shows all 4,704 refrigerators ranked by cost; the state-rate guide covers the half of this number that isn't the appliance. The 316 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.