Sub-Zero DEC3650FI/*: $131 a year to run

This model (Freezers) uses 621 kWh of electricity a year, which costs about $131 a year and $1,305 over 10 years at 21.0¢/kWh.

Energy use
621 kWh
per year
Running cost per year
$131
21.0¢/kWh
Running cost over 10 years
$1,305
Efficiency rank
645 / 662

10 % less energy than the federal minimum standard.

Product details

TypeUpright Freezer
Total volume (cu ft)19.4
Adjusted volume (cu ft)34.1
RefrigerantR-600a
Federal standard (kWh/year)681
ENERGY STAR Most EfficientNo
Available sinceSeptember 26, 2022

Compared with the average model (Freezers), this one costs about $46 more a year.

More efficient alternatives

Source: ENERGY STAR (U.S. EPA) · 21.0¢/kWh (August 2026) · Methodology