What the Marathon MFF101W costs to run
At 297 kWh/yr, the Marathon MFF101W's ENERGY STAR certification puts it cheaper than most models in its category to run against every other certified refrigerator.
The $56 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
Marathon MFF101W against the category
That's 23.1% below the refrigerator category average of 386 kWh/yr, and ranks 1,728 of 4,704 certified refrigerators for annual running cost, 1 being cheapest. The category average comes from every refrigerator ENERGY STAR currently certifies (4,704 models), not an outside benchmark, about $17/year below that average at the national rate. See the methodology page.
What sits beside it in the ranking
Marathon MFF103W ($56/yr, 297 kWh/yr) costs a little more to run than the Marathon MFF101W. Marathon MFF101* ($56/yr, 297 kWh/yr) costs a little less.
Within the Marathon lineup
Marathon makes 57 ENERGY STAR certified refrigerators; this one ranks 20 of 57 for running cost, between the brand's cheapest, the M4-100BLS at $25/yr, and its priciest, the MFF208WFD-2 at $87/yr.
Marathon MFF101W over 13 years
Over the 13-year service life NAHB reports for this category, running the Marathon MFF101W costs roughly $726 in electricity, separate from the purchase price.
Shopping for a new one
The Marathon MFF101W is already efficient for its category at $56/year. If you're shopping and comparing options, this is roughly what a well-chosen new refrigerator costs to run.
Worth comparing a few current certified models before deciding.
Protecting what you have
At $56/year just to run, a refrigerator is worth protecting against an unplanned repair bill on top of that.
Sourcing
Ranked 1,728 of 4,704, the Marathon MFF101W sits in the middle of the refrigerator category, see the guide to why your state changes this number for the other half of the math. The 297 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.