ASERTTI Digester Performance Partnership

Standardizing Evaluations of Performance of Systems Used by Livestock Producers for Biogas Production and Utilization

EPA estimates that there are about 180 anaerobic digestion systems for livestock manures either in operation or in some stage of planning or construction in the United States. And each year millions of dollars are invested by states, farmers, and the federal government. While many digesters are demonstrating the technical difficulties experienced with this technology in the early 1980s have been resolved, some challenges remain. As a result, livestock producers remain reluctant to make the significant financial investment needed because of uncertainty about performance and cost. Under the ASERTTI-EPA Digester project, participating members and EPA's AgStar are working to achieve a generally accepted methodology for assessing the performance and financial viability of digesters, allowing livestock producers and public and private investors to make fully informed decisions.

Digester Protocols

ASERTTI and EPA have completed a Protocol for Quantifying and Reporting the Performance of Anaerobic Digestion Systems for Livestock Manures. The protocol was developed through a collaborative process that included expert input, state review, and public comment. The protocol may be accessed at the link below:

Project Partners

Partners in the ASERTTI Digester Performance Partnership include:

  • California Energy Commission (CA)
  • Sacramento Municipal Utility District (CA)
  • Iowa Energy Center (IA)
  • Energy Resources Center, University of Illinois at Chicago (IL)
  • Mississippi Technology Alliance (MS)
  • North Carolina State University (NC)
  • New York State Energy Research and Development Authority (NY)
  • Washington State University Energy Program (WA)
  • Energy Center of Wisconsin (WI)
  • Hydro-Quebec
  • USDA Rural Development
  • U.S. Environmental Protection Agency