I am home for Thanksgiving in Vermont and yesterday we visited Westminster Farm a dairy farm which is now also a farm methane power plant. The methane plant project was recently completed and now that it is online it produces about 250 kW per hour which is enough energy to power 250 average homes per day.
The Cow Power Process
Manure is collected in a giant digester, as seen above, and heated to approximately 101 degrees F to maintain bacteria that breaks down the waste into various product including methane gas. The methane is then transferred from the digester through a pipe which separates out the moisture and sends the gas along to fuel a diesel engine which in turn is connected to a generator that produces electrical power. The power is then fed to the electrical grid.
In the case of Westminster Farm the power is fed to Green Mountain Power (GMP) and customers have the choice to now purchase their power through GMP's Greener GMP plan which includes the farm methane plant as well as a landfill methane producer.
Below you can see the digester next to the building that houses both the diesel engine and the generator and in the background are power poles that are connected into the GMP power grid.
Closeup of some of the goings on in the digester.
Ayup, turning poop into power in Vermont.
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