system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does the electric meter on your house keep track of the energy you've consumed?
gpt
The standard electric power meter is a clock-like device driven by the electricity moving through it. As the home draws current from the power lines, a set of small gears inside the meter move. The number of revolutions is recorded by the dials that you can see on the face of the meter.