This is a very cool puzzle design.
I think a thing that might improve the game is displaying which power lines are charged (and in which direction)... Currently, in order to figure out the direction of a circuit the player has to trace forwards from the last switch, and it isn't always super clear how the power lines are connected (there are some obfuscated T-Junctions in places that I'm still not sure how the connection worked, but I beat it via trial and error).
It's a solid challenge though, it gets complicated pretty quickly. It's a pretty excellent puzzle game to have made within the few days of the game jam!