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Farm Power slide-show

  • The founders of Farm Power.

    Any quality offset project has a developer and many key partners. Kevin Maas, left, and his brother, Darryl, not pictured, are the founders of Farm Power, the builder and operator of the digester. Garrett Kuipers, right, is the owner and operator of Beaver Marsh Dairy, where the digester is located.

  • Offsets wouldn't be possible without a steady supply of fuel.

    The Farm Power offsets wouldn't be possible without a steady supply of fuel. These beautiful Jersey cows from Beaver Marsh Dairy produce plenty of fuel - 120 pounds of manure a day!

  • A tractor scrapes the cow manure into a holding pond.

    A tractor scrapes the cow manure into a holding pond.

  • Manure is pumped from the holding pond to this pit.

    Manure is pumped from the holding pond to this pit. Before entering the digester, it is mixed with chicken slurry and other food waste. This mixture helps boosts methane production in the digester, but it doesn't smell very good. It makes The Climate Trust's Offset Project Analyst Peter Weisberg, pictured, miss his office!

  • Manure is pumped into the digester.

    Manure is pumped into the digester, which is this large underground concrete tank. (Photo: Bob Raymond)

  • Manure flows through a U-shape in the underground tank.

    Manure flows through a U-shape in the underground tank, which is pictured during construction. Methane gas is generated during the three weeks it takes for the manure to flow through the U. (Photo: Bob Raymond)

  • Methane gas is extracted through these yellow pipes.

    Methane gas is extracted through these yellow pipes.

  • The methane gas is sent to this generator.

    The methane gas is sent to this generator, which makes enough electricity to power 550 homes. Burning all that gas makes a lot of excess heat, which is captured and used to keep the digester at a steady 100 degrees, which is optimal for methane production. Offsets are calculated as the methane emissions that are destroyed instead of being released to the atmosphere. The digester also generates renewable electricity, although The Climate Trust does not claim any of the emission reductions associated with this renewable energy.


















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Reducing livestock emissions with technologies such as biodigesters is essential to combating climate change. After aggregating the emissions associated with producing feed, raising livestock, and processing and transporting animal products, the Food and Agricultural Organization of the United Nations estimate that the world's livestock are responsible for 18% of greenhouse gas emissions, which is more than the global emissions associated with transportation.

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