Zephyr PRRD24C2AS: running cost
The Zephyr PRRD24C2AS is certified by ENERGY STAR at 274 kWh a year, one of the cheaper models in its category to run among refrigerators currently certified.
That $52 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 29% less, ranking 1,531 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 $21/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 Zephyr PRRD24C2AS: Zephyr PRRD24C2AP ($52/yr, 274 kWh/yr), then Zephyr PRRD24C2AS-OD ($52/yr, 274 kWh/yr).
Comparing Zephyr's own models
Ranked 26 of Zephyr's 39 certified refrigerators, this sits between the PRRFD24C2AP ($13/yr, the brand's cheapest) and the PRRFD24C2AS-OD ($62/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 Zephyr PRRD24C2AS that long and it costs about $670 in electricity, on top of whatever it cost to buy.
Weighing a replacement
Efficient as certified refrigerators go, $52/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
The Zephyr PRRD24C2AS already costs $52/year to run; a repair bill on top of that is the kind of expense a protection plan exists to smooth out.
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 1,531 of 4,704, the Zephyr PRRD24C2AS 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.