Lenovo 83T1: $3 a year to run

This model (Computers) uses 15 kWh of electricity a year, which costs about $3 a year and $30 over 10 years at 21.0¢/kWh.

Energy use
15 kWh
per year
Running cost per year
$3
21.0¢/kWh
Running cost over 10 years
$30
Efficiency rank
824 / 1,748

Product details

TypeNotebook
Battery capacity (Wh)50.0
Available sinceDecember 15, 2025

Compared with the average model (Computers), this one saves about $2 a year.

More efficient alternatives

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