What the Summit LTM10SS costs to run
The Summit LTM10SS is certified by ENERGY STAR at 296 kWh a year, cheaper than most models in its category to run among refrigerators currently certified.
That $56 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 23.3% less, ranking 1,689 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 $17/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 LTM10SS: Summit LTM10PL ($56/yr, 296 kWh/yr), then Summit LTM10W ($56/yr, 296 kWh/yr).
Same brand, different models
Ranked 12 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 LTM10SS over 13 years
Over the 13-year service life NAHB reports for this category, running the Summit LTM10SS costs roughly $723 in electricity, separate from the purchase price.
Is it worth replacing?
Efficient as certified refrigerators go, $56/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
$56/year to run is the predictable cost of the Summit LTM10SS; a protection plan covers the unpredictable one, a repair bill.
Where this number comes from
Nothing here is estimated from a nameplate wattage; the 296 kWh/yr is ENERGY STAR's own certified figure for this model. 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.