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High-Low Tech Energy

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A relative of those electricity wire-killing balloons may just be our country's next great energy source, according to Fortune's Green Wombat blog: "It sounds like something out of one of those do-it-your-self magazines: Stitch together two buck’s worth of thin-film plastic - the stuff potato chip bags are made of - stick in a photovoltaic cell, inflate with air and, voilà, you’ve got yourself a “solar balloon” that will generate a kilowatt of electricity. String together 10,000 balloons and you’ve got a solar power plant that can power a town. California startup Cool Earth Solar believes this high-low tech approach is what will make its solar power plants competitive with fossil fuels." [Green Wombat]