Birchlawn Farms is a dairy, swine and crop farming operation, owned by the Terpstra family. The farm has 1,200 head of cattle and 2,400 acres of crop land. The farm’s 1,800m3 anaerobic digester was installed with the help of DLS EnviroSolutions Inc. and is connected to a Seva Energy combined heat and power system with a 440kW CAT engine. Input for the anaerobic digester includes on-farm materials and outsourced organic waste from food processing plants. Heating from the generator is used to heat the farm buildings, the AD, some of the water as well as to supplement the grain dryer. While the liquid portion of the digestate is used to fertilize the farm’s land, the solid portion is used as animal bedding.