is a third generation farm located in southern Maine with 8 members of the
family involved with the farm and biogas system.The family was motivated to add value to the farm and had
researched co-digestion as a feasible and sustainable option to augment their
CH Four Biogas
was chosen due to its extensive experience with farm based biogas systems and
the incorporation of mixed substrates.The company was contacted in July 2010, and a feedstock assessment was
completed in December 2010.
positive results of a previously conducted feasibility study as well as the
findings of the CH Four Biosim® feedstock modeling, Stonyvale Farm decided to
proceed with the project.The system design was finalized in the Spring of 2011 and
the construction of the project was started in August of that same year.The system started to produce biogas
in December 2011 with commissioning being completed in March 2012.The system performs well beyond its
originally anticipated capacity and produces 8,000 MW of electricity
as this was the first system of its kind in the state of Maine, there were
some regulatory hurdles that needed to be overcome such as the onerous
process of grid connection. On the other hand, the project also received much
appreciated support from USDA as well as representatives from local
biogas project has had an immediate positive impact on Stonyvale Farm as it
has opened doors for new business, both in farming and in organic resource
management as well as improved the overall operation of the existing farm.
The project was taken from idea to realization in a relatively short time
frame, which is attributed to a dedicated and motivated developer pairing
well with an experienced design and construction team.