31/10/2025
The number of identified facilities processing in the U.S. has increased steadily since the beginning of the Anaerobic Digestion Data Collection Project, from 154 in 2017 to 313 in 2024 (and 313 is likely an undercount).
The 2024 survey was provided to 313 facilities — 96 stand-alone digesters, 89 on-farm codigestion operations, and 128 codigestion systems at WRRFs.