RNG plants also have the ability to create revenue for municipalities, farmers, and industrial companies that can sell RNG into the natural gas grid. For example, a water utility in Texas currently processes over 1.5 million standard cubic feet of renewable natural gas per day, capturing biogas and then selling it through a commercial gas pipeline, generating a tremendous revenue stream while also removing 19,739 tons of carbon from the atmosphere. Phoenix, in partnership with its surrounding communities, recently opened the largest wastewater-to-RNG plant in the U.S., a facility capable of reducing CO2 emissions by 44,671 tons a year, equating to the removal of more than 9,400 cars from the road.
At Ameresco, we design, build, own, operate and maintain renewable energy plants that convert otherwise-wasted byproduct gas into useful forms of energy. These facilities process raw biogas generated from sources such as landfills and wastewater treatment facilities into a RNG product that can be injected into the natural gas pipeline network and transported anywhere in the United States. This “Green Gas” has been promoted under the Renewable Fuel Standard program.