What the Summit LBM1035PL costs to run
The Summit LBM1035PL is certified by ENERGY STAR at 385 kWh a year, about average for its category to run among refrigerators currently certified.
That $72 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 0.3% less, ranking 2,804 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 $0/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 LBM1035PL: Summit LBM1033W ($72/yr, 385 kWh/yr), then Whirlpool URBC6024SZ ($72/yr, 385 kWh/yr).
Comparing Summit's own models
Ranked 80 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 LBM1035PL over 13 years
Over the 13-year service life NAHB reports for this category, running the Summit LBM1035PL costs roughly $941 in electricity, separate from the purchase price.
Shopping for a new one
Efficient as certified refrigerators go, $72/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
$72/year to run is the predictable cost of the Summit LBM1035PL; 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.