Animal and human waste have the power to fuel homes (India) and even a train (Sweden), and since 2004, biogas has even been fueling a hydrogen fuel cell power plant at one Seattle area wastewater treatment center.

Using the methane by-product from the sewage of 650,000 Seattle area residents, those at the South Treatment Center in Renton, Washington (U.S.) are powering a one and a half megawatt fuel cell plant- the largest of it's type in America. In this video, John Phillips takes us for a tour of this high-tech poop powered plant.