Think you’ve got gas? The Chinese have everybody beat. According to technology review, published by the Massachusetts Institute of Technology, Huishan Dairy in northeast China collects methane gas from fermenting manure from about 60,000 cows to fuel turbines capable of producing 5.6 megawatts of power. Previously the world’s largest biosystem generated about two megawatts. The Huishan system is about 10 times larger than typical generating systems such as seen on large dairies in California, which produce only a few hundred kilowatts.
