I'm on a yahoo micro-hydro discussion list where people from around the world help each other out building small hydroelectric systems.  I had joined when building my own rather modest hydro system and stick with it as there are some very VERY smart people on the list.

Oh didn't you know that ruragoods operations run off the grid? 

My Home Brew Hydroelectric

Here is a vid of it in action:

Anyway one of the new members has a very cool project. He wants to go back to his home village in Africa to build a hydroelectric system that can create enough power to give everyone there some juice. His site: www.bafila.com Please check it out and if you are a hydro-electric person anywhere near Gbereyire Bafila Guinea please help him out.