Summit STM10B: running cost
The Summit STM10B is certified by ENERGY STAR at 296 kWh a year, cheaper than most models in its category to run among refrigerators currently certified.
The $56 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
Summit STM10B against the category
That's 23.3% below the refrigerator category average of 386 kWh/yr, and ranks 1,691 of 4,704 certified refrigerators for annual running cost, 1 being cheapest. The category average comes from every refrigerator ENERGY STAR currently certifies (4,704 models), not an outside benchmark, about $17/year below that average at the national rate. See the methodology page.
What sits beside it in the ranking
Summit STM10PL ($56/yr, 296 kWh/yr) costs a little more to run than the Summit STM10B. Summit LTM10W ($56/yr, 296 kWh/yr) costs a little less.
Comparing Summit's own models
Summit makes 148 ENERGY STAR certified refrigerators; this one ranks 14 of 148 for running cost, between the brand's cheapest, the ADRD15 at $48/yr, and its priciest, the S4D18WIM at $102/yr.
Summit STM10B over 13 years
13 years is NAHB's typical service life for this category; at $56/year, the Summit STM10B adds up to about $723 in electricity over that span.
Weighing a replacement
The Summit STM10B is already efficient for its category at $56/year. If you're shopping and comparing options, this is roughly what a well-chosen new refrigerator costs to run.
Worth comparing a few current certified models before deciding.
Protecting what you have
A refrigerator like the Summit STM10B is a real household expense whether or not it needs replacing yet; a protection plan is one way to budget for a repair rather than a full replacement.
Sourcing
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.