Do you plan on making hydroelectricity a viable option for power? From what I see, you would need way too many water wheels to actually be able to power things
Water wheels create mechanical power and only in low amounts - you are supposed to switch to a steam engine later on and then over to the electrical power generators. A way to convert electrical to mechanical and the other way around is planned. (And then you can profit off wind turbines and solar generators)
As for hydroelectric turbines there is unfortunately no such plans. You can add it here, though: https://feedback.play.eco