Factorio Forums

Does inserter consume power if it's connected but stays still?
Does assembling machine consume power if it's not working, like when it has no input materials, for example?

Yes, most electric buildings have an idle drain of about 3% of their energy consumption. You can see it on the sidebar to the right when hovering over a building. Example: Hovering over an assembling machine 2 shows Energy consumption: 150 kW, Drain: 5.0 kW.

Vanilla inserters always have a drain of 400 W when idle.
Buildings running on fuel don't consume any fuel when idle.

Thank you for clearing that out.