Sunday, December 30, 2007

Fuel Cubes: Cheap, Clean Energy Source?

Renewafuel, a start-up company from Minnesota, has invented cubes of plant materials that provide twice as much energy as other biomass and about the same amount of energy as coal. Because these "fuel cubes" are made of materials such as switch grass, corn stalks, and wood fibers, they don't contribute to global warming, the company says. read more »








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