Supermicro AS -531AW-TC: $49 a year to run

This model (Computers) uses 233 kWh of electricity a year, which costs about $49 a year and $490 over 10 years at 21.0¢/kWh.

Energy use
233 kWh
per year
Running cost per year
$49
21.0¢/kWh
Running cost over 10 years
$490
Efficiency rank
1,748 / 1,748

Product details

TypeWorkstation
Available sinceMay 1, 2025

Compared with the average model (Computers), this one costs about $44 more a year.

More efficient alternatives

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