What the Miele KFFD 6721 costs to run
At 654 kWh/yr, the Miele KFFD 6721's ENERGY STAR certification puts it one of the more expensive models in its category to run against every other certified refrigerator.
The $123 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
Where this ranks
That's 69.4% above the refrigerator category average of 386 kWh/yr, and ranks 4,305 of 4,704 certified refrigerators for annual running cost, 1 being cheapest. Every one of the 4,704 currently-certified refrigerators feeds that average, putting this model about $50/year over it. See how it's calculated on the how it is calculated page.
The closest alternatives by cost
Sorted by running cost among refrigerators, one step cheaper is Frigidaire FRFN2913B* ($123/yr, 654 kWh/yr), and one step pricier is Signature Kitchen Suite SKSFD4826* ($123/yr, 654 kWh/yr).
Comparing Miele's own models
Among Miele's 58 certified refrigerators, this is the priciest to run, $104/year over the KWTUS 7172 F, the brand's cheapest.
Miele KFFD 6721 over 13 years
NAHB's Study of Life Expectancy of Home Components puts a typical refrigerator's service life at 13 years; run the Miele KFFD 6721 that long and it costs about $1,598 in electricity, on top of whatever it cost to buy.
Shopping for a new one
The Miele KFFD 6721 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 $123/year every year.
Worth comparing a few current certified models before deciding.
Protecting what you have
A refrigerator like the Miele KFFD 6721 is a real household expense whether or not it needs replacing yet; a protection plan is one way to budget for a repair rather than a full replacement.
The data behind this page
Ranked 4,305 of 4,704, the Miele KFFD 6721 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 654 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.