I just want to preface this and say that I love this mod! As a mechanical engineer myself, I appreciate when mods are rooted in reality, and create new challenges in Factorio.

One thing that bugs me though is the use of the default power switch graphics from Factorio as transformers. While I've never created a mod myself, I don't know how difficult this would be, but there are other mods with custom graphics for this (i.e. Transformers Mod: https://mods.factorio.com/mod/Transformers).

I posted an issue on the Github page with some reference images (https://github.com/tburrows13/PowerOverload/issues/10).

Like I said, I have no experience with modding Factorio, but I do have experience with Blender, so I could potentially help with this if it's something that interests you.

Let me know what you think. Thanks for this awesome mod!