Whirlpool WRFF3336SZ: running cost
The Whirlpool WRFF3336SZ is certified by ENERGY STAR at 645 kWh a year, one of the more expensive models in its category to run among refrigerators currently certified.
That $121 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
The category average is 386 kWh/yr; this model runs 67.1% above it, ranking 4,272 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 $49/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 Whirlpool WRFF3336SZ: Whirlpool WRFF3336SW ($121/yr, 645 kWh/yr), then Whirlpool WRQC7836R* ($121/yr, 645 kWh/yr).
Same brand, different models
Ranked 111 of Whirlpool's 156 certified refrigerators, this sits between the AMA27S1E ($40/yr, the brand's cheapest) and the WRF995FIF*** ($142/yr, its priciest).
Whirlpool WRFF3336SZ over 13 years
NAHB's Study of Life Expectancy of Home Components puts a typical refrigerator's service life at 13 years; run the Whirlpool WRFF3336SZ that long and it costs about $1,576 in electricity, on top of whatever it cost to buy.
Is it worth replacing?
Running above the category average, $121/year is exactly the kind of number that makes a newer, more efficient model pay for itself faster.
Worth comparing a few current certified models before deciding.
If you're keeping it
$121/year to run is the predictable cost of the Whirlpool WRFF3336SZ; a protection plan covers the unpredictable one, a repair bill.
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. The full Refrigerator category page shows all 4,704 refrigerators ranked by cost; the state-rate guide covers the half of this number that isn't the appliance.