IV.
CONCLUSION ............................................................................................................................................ 30
V.
REFERENCES ................................................................................................................................................. 31
APPENDIX A: ANAEROBIC DIGESTION.......................................................................................................... 35
APPENDIX B: SITE VISIT DATA ........................................................................................................................ 42
II.
UPEI Department of Engineering
550 University Avenue
Charlottetown
PEI C1A 4P3
Page
1
of 55
Summary
This report discusses the feasibility of biogas digestion on a small PEI dairy or beef farm.
Conventional wisdom in the agricultural industry is that biogas production from dairy farms
smaller than 60 milking cows, or equivalent numbers of beef cattle in a barn are not practical.
Commercial manufacturers have been installing systems in Canada and the United States for on-
farm biogas that handle manure, but augment it with a substantial amount of non-manure co-
substrate materials. A preliminary review of local co-substrates is presented based on published
data.
There is no technical limitation, nor regulatory one for the establishment of a small on-farm
digester which could generate sufficient electricity to supply the farm’s average electrical needs.
The technical challenge in building a small biogas plant will be in finding suitable small-size and
price components for such system that can be accommodated in a reasonable capital budget. The
business/policy challenge will be to ensure the regulatory climate helps to make small-farm
systems economically attractive. These issues were discussed and potential risk factors are
identified.
II.
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