In 2002, William Kamkwamba’s family didn’t have enough money to pay for his monthly school fees. He was 14 years old. In his spare time, he knocked up a windmill, made from spare parts (a plastic pipe, bicycle wheel parts, and so on), using it to power a radio. Since that time, he has been exposed to many opportunities which will not only change his future, but, more importantly for he & his family, will provide business opportunities for many.
Watch this second video from TED, in June 2007: