William had to drop out of school because his family could not afford the tuition that amounted to about $80.00 U.S. After leaving school, he decided to build the windmill for his family. He taught himself how to
construct the energy device by looking at photographs and reading a book from the nearby library.
Picture frm librarything.com
There are plenty of stories about William Kamkwamba on line and in the media but this video below from the TED Foundation is a good place to hear him tell his own story.