What the Sub-Zero ID-30R costs to run
At 221 kWh/yr, the Sub-Zero ID-30R's ENERGY STAR certification puts it one of the cheaper models in its category to run against every other certified refrigerator.
The $42 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
Sub-Zero ID-30R against the category
That's 42.7% below the refrigerator category average of 386 kWh/yr, and ranks 793 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 $31/year below that average at the national rate. See the methodology page.
What sits beside it in the ranking
Absocold ARD244A*21R/L ($42/yr, 223 kWh/yr) costs a little more to run than the Sub-Zero ID-30R. roomwell REFNFR1700 ($42/yr, 221 kWh/yr) costs a little less.
Same brand, different models
Sub-Zero makes 26 ENERGY STAR certified refrigerators; this one ranks 8 of 26 for running cost, between the brand's cheapest, the DEU2450R/ADA/* at $30/yr, and its priciest, the CL4850S/S/* at $140/yr.
Cost over its typical lifespan
NAHB's Study of Life Expectancy of Home Components puts a typical refrigerator's service life at 13 years; run the Sub-Zero ID-30R that long and it costs about $540 in electricity, on top of whatever it cost to buy.
Is it worth replacing?
The Sub-Zero ID-30R is already efficient for its category at $42/year. If you're shopping and comparing options, this is roughly what a well-chosen new refrigerator costs to run.
See what else is certified in this category before you decide.
Protecting what you have
The Sub-Zero ID-30R already costs $42/year to run; a repair bill on top of that is the kind of expense a protection plan exists to smooth out.
Sourcing
Nothing here is estimated from a nameplate wattage; the 221 kWh/yr is ENERGY STAR's own certified figure for this model. Ranked 793 of 4,704, the Sub-Zero ID-30R 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.