William Kamkwambais a Malawian innovator, engineer and author. He gained fame in his country when, in 2002, he built a windmill to power a few electrical appliances in his family's house in Wimbeusing blue gum trees, bicycle parts, and materials collected in a local scrapyard. Since then, he has built a solar-powered water pump that supplies the first drinking water in his village and two other windmillsand is planning two more, including one in Lilongwe, the political capital of Malawi...
(wikipedia)