Board Thread:General Discussion/@comment-96.35.103.214-20140105162555/@comment-13413401-20140107010021

Well, water mills generate so little power, that solar panel are definately worth the cost. You could build a lot of water mills, but keep in mind that you need to transport the energy they produce to your main base, which costs a lot more wire.

You will see what I mean when you have many IC2 machines (Induction Funaces, Rotary Macerators, Recylers with time upgrades, Mass Fabricator). These machines take so much power that you would need 1000s of water mills. Any with so many mills, you would need to find a good way to transport to power over long distances.