Signage at the Bullis Savage View Farm in Grand Isle, Vermont serves as a construction sign and an educational description of the development process for passersby and the school children next door.
Following a variety of unexpected events including farm ownership change, permitting delays, noise studies and potential changes in Washington DC that would impact grants and incentives, the Bullis Savage View Farm welcomed its first digester components in April 2026. (Agricultural Digesters CEO Jim Muir discussed current challenges with a leading media outlet, Compass Vermont.)
This includes the manure solids separator that was placed in the room with reinforced platform formerly used for sawdust bedding. More site work will continue shortly!
A digester provides many new revenue streams to a farm. It no longer needs to depend on the fluctuating price of milk to survive.
Bullis Farm with the help of Agricultural Digesters LLC will make green electricity to sell to the Vermont grid, heat for the farm’s new worker building and milking parlor, fluffy bedding solids which will replace expensive sawdust, extra solids to process and sell as compost and 90% odorless liquid fertilizer that will be injected into fields increasing yields and controlling potential runoff into Lake Champlain. The farm may also separate the liquid digestate a second time to produce a powerful granular organic fertilizer sold nationally.
The digester required weekly video meetings to coordinate our team of engineers (Vermont), generator supplier (Germany/Connecticut) and biogas technology provider (Austria/South Dakota).
Efficiency Vermont will help Bullis Farm utilize heat from the generator as a substitute for a fossil fuel – propane.
It takes an international team to create the Bullis digester. Coordinated by Vermont based developer Agricultural Digesters LLC, were the American offices of Biogest Biogas (Austria), MAN Generators (Germany) and Bauer/FAN Manure Separators (Austria).
Base ring materials being unloaded at farm. They arrived in advance of actual stainless steel tank panels.
Space being modified for separation of digestate into bedding solids and liquid fertilizer. Reinforced platform with new stairway constructed to right, rear. New FAN/Bauer digestate separator on floor. In foreground, base ring materials being stored waiting for arrival of tank panels.