Hello there. This is just a little problem I have with your mod. It's not a huge problem, but I wanted to place some lamps in the tunnel, but I can't transfer power bewteen tunnel layers. So I'd like this mod to be able to transfer power bewteen layers so these things would get possible, and maybe even a MegaBase spaced out between the layers.

But since this isn't inplemented, would you recomend me to just ship in steam and have some turbines using that?

I would, for now, recommend https://mods.factorio.com/mod/subterra for that. The surface names are compatible. But I didn't test for other incompatibilites, yet.