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William Kamkwamba:
How I built a windmill

TEDGlobal 2007 · 4:12 · Filmed Jun 2007

When he was just 14 years old, Malawian inventor William Kamkwamba built his family an electricity-generating windmill from spare parts, working from rough plans he found in a library book.

Inventor
To power his family's home, young William Kamkwamba built an electricity-producing windmill from spare parts and scrap — starting him on a journey detailed in the book and film "The Boy Who Harnessed the Wind." Full bio