USA, Texas

Texas has become home to what is reportedly the largest manure-to-gas (biogas) production facility in the USA. Associated Press reports that the facility is located at Huckabay Ridge, the state’s top producing dairy county and with an average output of 15 gallons of manure per cow per day. Mixed with restaurant grease, the manure is processed in an anaerobic digester to produce pipeline quality biogas. Though output from the plant is currently used for electricity generation, biomethane is becoming an increasingly popular alternative fuel, providing a renewable high efficiency fuel for transport.