William Kamkwamba, 22, of Malawi is an amazing person. He lived in extreme poverty and yet in 2007, with no money and no experience, he studied a DIY book and built a wind turbine out of a tractor fan, shock absorbers, PVC pipes and a bicycle frame. His creation was able enough to light up four bulbs and a radio. He was invited to give a talk at TED after this.
Later in 2008, he built a Green Machine windmill, pumping well water to irrigate his maize crops. Finally this year, he erected an actual size 5 metre windmill.
His next plan is to build a drilling machine. This is what he says. "Right now I am interested in building a drilling machine. I want to build a machine that can drill wells for water. With this problem of water in many places in Africa, we need to find a solution for how you can dig wells so you can be pumping water from deeper places"
Kamkwamba also states that while he's busy with school and can't help other people who want to create windmills, he has taught his cousin and plans to teach more people in Malawi how to build their own windmill so they can generate electricity on their own.
He has written is own autobiography, The Boy Who Harnessed The Wind and has his own blog. Below you can see a short video Moving Windmills.