Running cost for the Kenmore KKUF21-W
The Kenmore KKUF21-W is certified by ENERGY STAR at 314 kWh a year, cheaper than most models in its category to run among refrigerators currently certified.
That $59 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 18.7% less, ranking 1,895 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 $14/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 Kenmore KKUF21-W: Kenmore KKUF21-***** ($59/yr, 314 kWh/yr), then KOOLATRON KTUF600-W-E ($59/yr, 314 kWh/yr).
Same brand, different models
Ranked 25 of Kenmore's 93 certified refrigerators, this sits between the 17764 ($39/yr, the brand's cheapest) and the 46-75625 ($140/yr, its priciest).
Kenmore KKUF21-W over 13 years
13 years is NAHB's typical service life for this category; at $59/year, the Kenmore KKUF21-W adds up to about $767 in electricity over that span.
Is it worth replacing?
Efficient as certified refrigerators go, $59/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
The Kenmore KKUF21-W already costs $59/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
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. The 314 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.