Liebherr UW3720: running cost
At 100 kWh/yr, the Liebherr UW3720's ENERGY STAR certification puts it one of the cheaper models in its category to run against every other certified refrigerator.
That $19 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.
Efficient, or not, for a refrigerator
Against the category average of 386 kWh/yr, this model uses 74.1% less, ranking 23 of 4,704 refrigerators tracked here for running cost. That average is drawn from all 4,704 refrigerators ENERGY STAR currently certifies, not an outside number, a $54/year gap from this model at the national rate. Full sourcing is in the sourcing notes.
Right next to it on the list
A rank or two either side of the Liebherr UW3720: Liebherr UW3710 ($19/yr, 100 kWh/yr), then Miele KWTUS 7172 F ($19/yr, 100 kWh/yr).
Comparing Liebherr's own models
Ranked 2 of Liebherr's 75 certified refrigerators, this sits between the UW3710 ($19/yr, the brand's cheapest) and the FDBHC36S ($117/yr, its priciest).
Liebherr UW3720 over 13 years
13 years is NAHB's typical service life for this category; at $19/year, the Liebherr UW3720 adds up to about $244 in electricity over that span.
Is it worth replacing?
Efficient as certified refrigerators go, $19/year is a reasonable baseline if you're comparing what else is on the market.
Worth comparing a few current certified models before deciding.
If you're keeping it
At $19/year just to run, a refrigerator is worth protecting against an unplanned repair bill on top of that.
Where this number comes from
Nothing here is estimated from a nameplate wattage; the 100 kWh/yr is ENERGY STAR's own certified figure for this model. At rank 23 of 4,704 for running cost, see the refrigerator category page for the rest of the field, or the guide to how much your state matters.