Farm-based anaerobic digesters as an energy and odor control technology: Background and policy issues

Research output: Chapter in Book/Report/Conference proceedingChapter


This chapter summarizes the existing literature and analytical perspectives on farm-based digesters, highlights major efforts in the United States and Europe to expand digester usage, and discusses key policy issues affecting digester economics. The study was largely a review of the -gray literature" on digesters, and it serves as a snapshot overview of the industry. Digesters are fairly capital-intensive when viewed primarily as an energy source. On a strictly market basis, current U.S. average electricity prices do not appear to provide sufficient economic justification for digesters to move beyond a fairly limited niche. Digesters make the most sense today where the odor and nutrient management benefits are important, or where the electricity or heat has a higher-than-average value. Digester biogas is mainly methane, which is destroyed when flared or used for electricity. This methane destruction is beneficial in terms of climate change. The associated carbon credits may become a more significant farm revenue source in the future.

Original languageEnglish (US)
Title of host publicationAnaerobic Digestion for Energy Generation and Greenhouse Gas Reduction
PublisherNova Science Publishers, Inc.
Number of pages30
ISBN (Electronic)9781536114331
ISBN (Print)9781617286797
StatePublished - Jan 1 2010

Bibliographical note

Publisher Copyright:
© 2010 by Nova Science Publishers, Inc. All rights reserved.


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