What the Sub-Zero DEC2450R/* costs to run
The Sub-Zero DEC2450R/* is certified by ENERGY STAR at 302 kWh a year, cheaper than most models in its category to run among refrigerators currently certified.
The $57 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
Sub-Zero DEC2450R/* against the category
That's 21.8% below the refrigerator category average of 386 kWh/yr, and ranks 1,780 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 $16/year below that average at the national rate. See the methodology page.
What sits beside it in the ranking
UNIQUE UNQ-310L B TM ($57/yr, 302 kWh/yr) costs a little more to run than the Sub-Zero DEC2450R/*. Gaggenau RVC467790 ($57/yr, 302 kWh/yr) costs a little less.
Within the Sub-Zero lineup
Sub-Zero makes 26 ENERGY STAR certified refrigerators; this one ranks 11 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.
Sub-Zero DEC2450R/* over 13 years
13 years is NAHB's typical service life for this category; at $57/year, the Sub-Zero DEC2450R/* adds up to about $738 in electricity over that span.
Shopping for a new one
The Sub-Zero DEC2450R/* is already efficient for its category at $57/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
Whether or not the Sub-Zero DEC2450R/* ever needs replacing, a repair is the more common failure for a refrigerator, one a protection plan budgets for ahead of time.
Sourcing
Nothing here is estimated from a nameplate wattage; the 302 kWh/yr is ENERGY STAR's own certified figure for this model. Ranked 1,780 of 4,704, the Sub-Zero DEC2450R/* 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.