From the New York Times:
Here at one of the largest dairy farms in the country, electricity generated using an endless supply of manure runs the equipment to milk around 30,000 cows three times a day
For years, the farm has used livestock waste to create enough natural gas to power 10 barns, a cheese factory, a cafe, a gift shop and a maze of child-friendly exhibits about the world of dairy, including a 4D movie theater.
All that, and Fair Oaks Farms was still using only about half of the five million pounds of cow manure it vacuumed up from its barn floors on a daily basis. It burned off the excess methane, wasted energy sacrificed to the sky.
But not anymore.
The farm is now turning the extra manure into fuel for its delivery trucks, powering 42 tractor-trailers that make daily runs to raw milk processing plants in Indiana, Kentucky and Tennessee. Officials from the federal Department of Energy called the endeavor a “pacesetter” for the dairy industry, and said it was the largest natural gas fleet using agricultural waste to drive this nation’s roads.
Read the complete story here.