Category: Cogeneration

Cows in the cow barn eat when they are hungry and big rakes automatically collect manure from the floors to feed the biogas operation on on the Callaghan family farm in Lindsay, Ontario. Ontario has built about 30 similar projects that produce electricity, clean up environmental problems and creates economic diversification on the farm. Photo David Dodge,

31. Biogas: Closing the loop on cow poop

Cow poop isn’t typically thought of as a valuable resource. But with a process called anaerobic digestion that cow poop can be turned into electricity, heat, a near odourless fertilizer and and animal bedding.