What the MicroFridge 2.3MF4RS costs to run
The MicroFridge 2.3MF4RS is certified by ENERGY STAR at 223 kWh a year, one of the cheaper models in its category to run among refrigerators currently certified.
That $42 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.
How the MicroFridge 2.3MF4RS compares to other refrigerators
Against the category average of 386 kWh/yr, this model uses 42.2% less, ranking 796 of 4,704 refrigerators tracked here for running cost. 4,704 certified refrigerators, one average, about $31/year of daylight between it and this model; the full methodology has the rest.
Neighbouring models
Right next to the MicroFridge 2.3MF4RS on that list: MicroFridge 2.3MF4R ($42/yr, 223 kWh/yr) runs slightly less, while MicroFridge 2.3MF4RW ($42/yr, 223 kWh/yr) runs slightly more.
Comparing MicroFridge's own models
Ranked 5 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
13 years is NAHB's typical service life for this category; at $42/year, the MicroFridge 2.3MF4RS adds up to about $545 in electricity over that span.
Is it worth replacing?
Efficient as certified refrigerators go, $42/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
At $42/year just to run, a refrigerator is worth protecting against an unplanned repair bill on top of that.
How this was checked
At rank 796 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 223 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.