Lenovo 90X1: $10 a year to run

This model (Computers) uses 47 kWh of electricity a year, which costs about $10 a year and $98 over 10 years at 21.0¢/kWh.

Energy use
47 kWh
per year
Running cost per year
$10
21.0¢/kWh
Running cost over 10 years
$98
Efficiency rank
1,506 / 1,748

Product details

TypeDesktop
Available sinceMarch 15, 2024

Compared with the average model (Computers), this one costs about $5 more a year.

More efficient alternatives

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