Cow Power
František Trnka's dairy farm in the southern village of Sobesice built a biogas station that generates electricity from their cow manure. They capture the methane gas, a by-product of the manure, and use it as fuel in a large engine connected to a generator. The station already provides heat and power to the farm and an adjacent hotel, and now is taking steps to power and heat homes in the village.
Find out how a modern dairy farm is making green energy from its waste materials
VEGI PWR
Stacy Jurich collects waste vegetable oil from restaurants to power her 1981 Mercedes Benz. In 2009, she logged more than 10,000 miles on a cross-country journey to demonstrate how innovative alternative energy sources can help power automobiles.
See how Stacy was able to drive her car 10,000 miles without gasoline
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