What the Sub-Zero DEC3650R**/* costs to run
The Sub-Zero DEC3650R**/* is certified by ENERGY STAR at 362 kWh a year, about average for its category to run among refrigerators currently certified.
That $68 is priced at 18.8¢/kWh, the average of all 51 state rates this site tracks. Your own state's rate is one click away.
How the Sub-Zero DEC3650R**/* compares to other refrigerators
Against the category average of 386 kWh/yr, this model uses 6.2% less, ranking 2,569 of 4,704 refrigerators tracked here for running cost. 4,704 certified refrigerators, one average, about $5/year of daylight between it and this model; the full methodology has the rest.
Neighbouring models
Right next to the Sub-Zero DEC3650R**/* on that list: Seasons MSTF18WHR ($68/yr, 362 kWh/yr) runs slightly less, while Summit CTR18** ($68/yr, 362 kWh/yr) runs slightly more.
Same brand, different models
Ranked 15 of Sub-Zero's 26 certified refrigerators, this sits between the DEU2450R/ADA/* ($30/yr, the brand's cheapest) and the CL4850S/S/* ($140/yr, its priciest).
What this adds up to over time
NAHB's Study of Life Expectancy of Home Components puts a typical refrigerator's service life at 13 years; run the Sub-Zero DEC3650R**/* that long and it costs about $885 in electricity, on top of whatever it cost to buy.
Shopping for a new one
Efficient as certified refrigerators go, $68/year is a reasonable baseline if you're comparing what else is on the market.
Compare current ENERGY STAR certified refrigerators before buying.
If you're keeping it
Whether or not the Sub-Zero DEC3650R**/* ever needs replacing, a repair is the more common failure for a refrigerator, one a protection plan budgets for ahead of time.
How this was checked
Ranked 2,569 of 4,704, the Sub-Zero DEC3650R**/* 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. The 362 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.