U.S. EPA AgSTAR program promotes anaerobic digestion adoption for carbon-negative fuels

March 20, 2019 | Case Study

Carbon-negative fuels have long been a holy grail for the alternative fuels industry. While this concept is often associated with the conversion of carbon dioxide into fuel products, the mitigation of methane emissions could also play a key role in producing carbon-negative fuels. One of the main sources of methane emissions in the U.S. is livestock farms, and well-to-wheel (WTW) analysis shows that livestock manure processing in anaerobic digesters results in a carbon-negative fuel due to the total avoided methane. The application of transportation fuel combined with the potential of biogas production from livestock farms has led to the U.S. EPA aggressively promoting its AgSTAR program to construct anaerobic digesters across the country.