Running cost for the Stirling S4-100PANR
The Stirling S4-100PANR is certified by ENERGY STAR at 134 kWh a year, one of the cheaper models in its category to run among refrigerators currently certified.
The $25 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
Stirling S4-100PANR against the category
That's 65.3% below the refrigerator category average of 386 kWh/yr, and ranks 72 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 $47/year below that average at the national rate. See the methodology page.
What sits beside it in the ranking
Stirling S4-100SS ($25/yr, 134 kWh/yr) costs a little more to run than the Stirling S4-100PANR. Marathon M4-D250SS ($25/yr, 134 kWh/yr) costs a little less.
Comparing Stirling's own models
Stirling sells 11 certified refrigerators; this one runs cheapest of them, about the same, within a dollar a year, under the S4-D250SS, its priciest.
What this adds up to over time
Over the 13-year service life NAHB reports for this category, running the Stirling S4-100PANR costs roughly $327 in electricity, separate from the purchase price.
Is it worth replacing?
The Stirling S4-100PANR is already efficient for its category at $25/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
The Stirling S4-100PANR already costs $25/year to run; a repair bill on top of that is the kind of expense a protection plan exists to smooth out.
Sourcing
At rank 72 of 4,704 for running cost, see the refrigerator category page for the rest of the field, or the guide to how much your state matters. The 134 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.