Liebherr UF3651
Compact · 2.5
ENERGY STAR Most Efficient
Summary
The Liebherr UF3651 is a compact with 2.5 capacity that uses 155 kWh per year, costing approximately $24.8annually to run at the US average electricity rate. Over 10 years, that's $248 in energy costs alone. It uses 61% less energy than the federal minimum standard, earning ENERGY STAR's "Most Efficient" designation — the top tier of certified products. This is an exceptionally efficient model.
$24.8
per year to run
100
efficiency score /100
$248
10-year energy cost
How This Compares to Other Freezers
Ranked #2 out of 614 in the freezers category (by lowest annual cost).
Annual Cost
$24.8 vs avg $64
$39.2/yr cheaper
Energy Use
155 kWh vs avg 400
245 kWh less
Efficiency Score
100 vs avg 62
Above average
Energy Details
Annual Energy Use155 kWh/year
Federal Standard397 kWh/year
Better Than Standard61%
Annual Cost (at $0.16/kWh)$24.8
Capacity2.5
BrandLiebherr
Date Certified2026-01-07
Energy cost estimated at $0.16/kWh (US national average). Your actual cost depends on your local electricity rate and usage patterns. Data from ENERGY STAR certified product database.