Running cost for the Marathon MFF212*****
ENERGY STAR certifies the Marathon MFF212***** at 493 kWh/yr, more expensive than most models in its category to run for its category.
That $93 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 freezer
The category average is 401 kWh/yr; this model runs 22.9% above it, ranking 535 of 658 freezers tracked here for running cost. That average is drawn from all 658 freezers ENERGY STAR currently certifies, not an outside number, a $17/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 MFF212*****: KOOLATRON KTUF600-W-E ($93/yr, 493 kWh/yr), then Marathon MFF212BLS ($93/yr, 493 kWh/yr).
Comparing Marathon's own models
Ranked 10 of Marathon's 11 certified freezers, this sits between the MCF36W-1 ($31/yr, the brand's cheapest) and the MFF212BLS ($93/yr, its priciest).
Lifespan
NAHB's Study of Life Expectancy of Home Components does not publish a figure for freezers, so no lifetime cost is shown here rather than a guessed one. The annual and monthly figures above stand on their own.
Shopping for a new one
Running above the category average, $93/year is exactly the kind of number that makes a newer, more efficient model pay for itself faster.
Worth comparing a few current certified models before deciding.
If you're keeping it
A freezer like the Marathon MFF212***** is a real household expense whether or not it needs replacing yet; a protection plan is one way to budget for a repair rather than a full replacement.
Where this number comes from
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. Ranked 535 of 658, the Marathon MFF212***** sits in the middle of the freezer category, see the guide to why your state changes this number for the other half of the math.