MicroFridge 3.1MF7RW Running Cost (Refrigerator)
Running cost for the MicroFridge 3.1MF7RW
At 195 kWh/yr, the MicroFridge 3.1MF7RW'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 221 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 3.1MF7RW: MicroFridge 3.1MF7RS ($37/yr, 195 kWh/yr), then FRIGIAIRE EFR331 ($37/yr, 197 kWh/yr).
Same brand, different models
Ranked 3 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).
Cost over its typical lifespan
NAHB's Study of Life Expectancy of Home Components puts a typical refrigerator's service life at 13 years; run the MicroFridge 3.1MF7RW that long and it costs about $477 in electricity, on top of whatever it cost to buy.
Shopping for a new one
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
At $37/year just to run, a refrigerator is worth protecting against an unplanned repair bill on top of that.
Where this number comes from
At rank 221 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. The 195 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.