Running cost for the Summit LBF12W
The Summit LBF12W is certified by ENERGY STAR at 399 kWh a year, about average for its category to run among refrigerators currently certified.
That $75 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 3.4% above it, ranking 2,940 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 $2/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 Summit LBF12W: Summit LBF12SS ($75/yr, 399 kWh/yr), then Summit SBF125B ($75/yr, 399 kWh/yr).
Same brand, different models
Ranked 96 of Summit's 148 certified refrigerators, this sits between the ADRD15 ($48/yr, the brand's cheapest) and the S4D18WIM ($102/yr, its priciest).
Summit LBF12W over 13 years
NAHB's Study of Life Expectancy of Home Components puts a typical refrigerator's service life at 13 years; run the Summit LBF12W that long and it costs about $975 in electricity, on top of whatever it cost to buy.
Shopping for a new one
Efficient as certified refrigerators go, $75/year is a reasonable baseline if you're comparing what else is on the market.
Worth comparing a few current certified models before deciding.
If you're keeping it
$75/year to run is the predictable cost of the Summit LBF12W; 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. Ranked 2,940 of 4,704, the Summit LBF12W 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.