Professional Series PS-CRF939US-IN: running cost
The Professional Series PS-CRF939US-IN is certified by ENERGY STAR at 215 kWh a year, one of the cheaper models in its category to run among refrigerators currently certified.
That $40 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 44.3% less, ranking 590 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 $32/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 Professional Series PS-CRF939US-IN: Professional Series PS-CRF932US-IN ($40/yr, 215 kWh/yr), then Sub-Zero DEU2450B*/ADA/* ($40/yr, 215 kWh/yr).
Within the Professional Series lineup
Ranked 6 of Professional Series's 21 certified refrigerators, this sits between the PS-CRF901US-IN ($38/yr, the brand's cheapest) and the PS-FRF192 ($118/yr, its priciest).
What this adds up to over time
NAHB's Study of Life Expectancy of Home Components puts a typical refrigerator's service life at 13 years; run the Professional Series PS-CRF939US-IN that long and it costs about $525 in electricity, on top of whatever it cost to buy.
Shopping for a new one
Efficient as certified refrigerators go, $40/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 $40/year just to run, a refrigerator is worth protecting against an unplanned repair bill on top of that.
Where this number comes from
Ranked 590 of 4,704, the Professional Series PS-CRF939US-IN 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 215 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.