Running cost for the Sub-Zero DET3050CI**/*
At 550 kWh/yr, the Sub-Zero DET3050CI**/*'s ENERGY STAR certification puts it one of the more expensive models in its category to run against every other certified refrigerator.
The $103 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
Sub-Zero DET3050CI**/* against the category
That's 42.5% above the refrigerator category average of 386 kWh/yr, and ranks 3,760 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 above that average at the national rate. See the methodology page.
What sits beside it in the ranking
TRUARCTIC TRBM1930MSS ($103/yr, 550 kWh/yr) costs a little more to run than the Sub-Zero DET3050CI**/*. Seasons MSBF18**IM ($103/yr, 550 kWh/yr) costs a little less.
Comparing Sub-Zero's own models
Sub-Zero makes 26 ENERGY STAR certified refrigerators; this one ranks 21 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
Over the 13-year service life NAHB reports for this category, running the Sub-Zero DET3050CI**/* costs roughly $1,344 in electricity, separate from the purchase price.
Is it worth replacing?
The Sub-Zero DET3050CI**/* runs above its category average. If the refrigerator you actually own is older still, likely well past ENERGY STAR's efficiency baseline when it was made, a current certified model could cost meaningfully less than this model's $103/year every year.
See what else is certified in this category before you decide.
Protecting what you have
At $103/year just to run, a refrigerator is worth protecting against an unplanned repair bill on top of that.
Sourcing
Nothing here is estimated from a nameplate wattage; the 550 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.