Hey Reika, I am not sure if you simply didn't notice the suggestion or what, but a couple of pages back someone suggested a "Hydroelectric Dam" (I'm not sure about the name, as it obviously shouldn't generate electricity). But in real life dams are used to power huge turbines and that could be a really interesting power source in your mod. Maybe it should be a large multiblock, maybe it should only work in a River biome, I don't know! But I certainly thought it was worth your attention, so I just wanted to re-mention it