Crave Brothers Farm turns manure into electricity
Electricity-generating anaerobic manure digesters drew attention from visitors to the 2009Farm Technology Days at the Crave Brothers Farm near Waterloo.
From a story on WITI-TV, Green Bay:
This farm equipment may not look familiar to most folks, but it is part of the process to provide the Crave brothers family farm with fuel.
“Just feel the heat coming off, here. The BTU’s that are being produced, off of the exhaust, heat hot water,” says Charlie Crave.
The farm is the site of 2009’s Wisconsin Farm Technology Days, and all the power to operate the farm, along with some which is sold to the local utility, is generated from the cattle waste.
“We have 750,000 gallons of manure in each tank. The manure is heated to 105 degrees, to where it starts to break down, and the bacteria-action produces methane gas,” explains Charlie Crave.
Charlie Crave runs the farm, while his son works for clear horizon, a Milwaukee-based company Crave contracts to make methane magic, from manure. The waste created by the Crave cattle is still also used to fertilize the fields and in potting soil. On the farm it is all about renewable, sustainable energy.
Read about Wisconsin’s other digesters in the Wisconsin Agricultural Biogas Casebook published by Focus on Energy.