16.02.2011 22:35 Uhr, Quelle: Engadget

New York City turns to sewers for energy solutions

Listen up New Yorkers, those hot nuts you just swallowed could be used to light the signs on Broadway. Okay, so that's a stretch, but the city's Department of Environmental Protection (DEP) just issued a plan to turn the stuff you flush, along with rest of its wastewater, into renewable energy. New York City produces about 1.3 billion gallons of wastewater daily, yielding 1,200 tons of biosolids that can be harvested to procure methane -- already accounting for 20 percent of the city's energy -- and butanol, a clean gasoline alternative. The plan, which also includes wind and solar projects, aims to

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