Running cost for the MicroFridge 3.1MF7RS
At 195 kWh/yr, the MicroFridge 3.1MF7RS's ENERGY STAR certification puts it one of the cheaper models in its category to run against every other certified refrigerator.
That $37 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 49.5% less, ranking 220 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 $36/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 MicroFridge 3.1MF7RS: MicroFridge 3.1MF7R ($37/yr, 195 kWh/yr), then MicroFridge 3.1MF7RW ($37/yr, 195 kWh/yr).
Within the MicroFridge lineup
Ranked 2 of MicroFridge's 18 certified refrigerators, this sits between the 3.1MF7R ($37/yr, the brand's cheapest) and the 4.8RMF4RHW ($65/yr, its priciest).
MicroFridge 3.1MF7RS over 13 years
Over the 13-year service life NAHB reports for this category, running the MicroFridge 3.1MF7RS costs roughly $477 in electricity, separate from the purchase price.
Weighing a replacement
Efficient as certified refrigerators go, $37/year is a reasonable baseline if you're comparing what else is on the market.
Compare current ENERGY STAR certified refrigerators before buying.
If you're keeping it
Whether or not the MicroFridge 3.1MF7RS ever needs replacing, a repair is the more common failure for a refrigerator, one a protection plan budgets for ahead of time.
Where this number comes from
Nothing here is estimated from a nameplate wattage; the 195 kWh/yr is ENERGY STAR's own certified figure for this model. At rank 220 of 4,704 for running cost, see the refrigerator category page for the rest of the field, or the guide to how much your state matters.