Panasonic FZ-55F******: $4 a year to run

This model (Computers) uses 19 kWh of electricity a year, which costs about $4 a year and $40 over 10 years at 21.0¢/kWh.

Energy use
19 kWh
per year
Running cost per year
$4
21.0¢/kWh
Running cost over 10 years
$40
Efficiency rank
1,186 / 1,748

Product details

TypeRuggedized Notebook
Battery capacity (Wh)68.0
Available sinceSeptember 17, 2025

Compared with the average model (Computers), this one saves about $1 a year.

More efficient alternatives

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