A Guatemalan Social Entrepreneur: Founder of Quetzol

From TED (scroll down):

Manuel Aguilar, energy entrepreneur: The founder of Quetsol introduces us to a family in Guatemala who live on $330 a month, using candles and kerosene for light and fuel, a health and environmental hazard. He developed and sells a solar lighting kit using a small solar panel and LED bulbs, offering a renewable, inexpensive form of light, as well as a way to charge cell phones. He’s improved the lives of this family and many others –- even though the kids now have to do homework! As he says, “The faster we contribute, the better it is for all of us.”