William and his windmill. (William )

It was 2002 when William Kamkwamba learned that he would no longer be able to continue his schooling. His family couldn't afford to pay the school fees, so William, all of 14 years old, took on the task of educating himself. With the help of mentor Dr. Hartford Mchazime and the Malawai Teacher Training Authority (USAID), William was able to keep his hungry mind fed. "I read a book (called) Using Energy by Mary Atwater." With this book, William was able to re-design a power-generating windmill… using mostly salvaged materials: wooden poles, broken pipes, old shoes, copper wires, his father's old bicycle, anything he could find that might work. And if he couldn't find it, William made it. PVC pipes were cut, heated and pounded until flat to serve as the blades for the windmill. "I had some problems because I was using a bicycle chain… so I had to remove it and use a fan belt from a car… and that works better…"

One can't help but wonder what could motivate him to take on this Herculean task, but a recent phone call to William in Malawi answered our questions. "I decided to make a windmill after some problems in my family." William is one of seven children. He has six sisters - five of them are younger than him. "My sister was coughing from the paraffin candles… they smoke and are dangerous." With no electricity in his village, all lighting was done by candle… a commodity that would have to be regularly brought in from a market over ten kilometers away. William's windmill would mean electric light and just maybe… a healthier sister.

Chris Anderson and William Kamkwamba at TED Global (TED)

That computer is a result of William becoming a FELLOW at TED GLOBAL 2007. TED, which stands for Technology, Entertainment and Design started in 1984 as a conference with people from these disciplines. Their mission: to spread ideas. "We believe passionately in the power of ideas to change attitudes, lives and ultimately, the world. So we're building here a clearinghouse that offers free knowledge and inspiration from the world's most inspired thinkers, and also a community of curious souls to engage with ideas and each other." William was invited to attend the most recent TEDGLOBAL conference in Tanzania by Emeka Okafor, the TEDGlobal curator. News of William and his accomplishments had been spreading through Africa, starting with an article in Malawi's Daily Times entitled, "School Drop-Out With a Streak of Genius" and spreading to the influential blog sites: TimbuktuChronicles, Soyapi Mumba, AfriGadget and others. William's humble, meaningful story about his windmill became the emotional highlight of the conference where people like Bono and Jane Goodall were also speaking.

Map of Africa (William's blog)

Africa means a great many things to a great many people. Many of us in the West hear only the disturbing parts… famine, war, epidemics. But there's another story to be told about Africa; the story of the so-called "Cheetahs," the people in Africa who aren't waiting for government or foreign aid or NGOs to solve their problems. They are the Africans who are standing up and saying, "The change begins with me. I am the answer." William is one such African.

Map of Malawi (William's blog)

In building his windmill, William was forced to fabricate some of the electric components from scratch. For instance, "A light switch... that I made from plastic pipe and rubber from shoes and some springs." Also a circuit breaker. He's also designed a radio station that transmits to an audience within 100 square meters. But he figures that 20 square miles is what he really needs. His goal is to broadcast a message to his fellow Africans about not contracting HIV. "I googled 'how to make a radio amplifier'. I got a lot of information. Now I will think about how to make it work for me."

Agnes (mother), William, Dr. Hartford Mchazime, Tryell (father) (TED Global)

William's heroes? After a brief discussion about heroes and who and what they may be…William said he has been inspired by many, but he would have to say that his mentors, Dr. Hartford Mchazime and Tom Rielly from TED are his heroes because "they have helped me to manage my plans and to make my plans possible."

And just what are William's plans? A few little things… like a sustainable future for his family, his village and ultimately the planet.

To follow William's progress, check out his blog.

Click here to view a video of inventor William Kamkwamba at the TED Global conference last month in Tanzania.

Learn about the Moving Windmills Project, a non-profit organization inspired by William Kamkwamba that pursues rural economic and educational development in Malawi, Africa.