Greenholm Farms, located north of Embro, is now generating enough electrical energy to supply over 200 homes in Canada. They are using thermal energy for various applications. Gord and Dave Green, a father-and-son team, signed a feed-in tariff-based PPA (power purchase agreement) with the Ontario Power Authority to sell electricity to their grid. The operation involves converting manure produced from the approximately 175-head dairy herd using a modern above-ground anaerobic digester designed and constructed by PlanET Biogas Solutions Inc. The manure is mixed with other unwanted organic waste material, such as grease from restaurants. Bacteria in the mixture break down organic matter, producing methane gas. The methane is then used to run a 2G agenitor system (plate_number_1) that generates 250kW/h electricity. Mr. Gord Green said, "This is about the only green energy out there that produces energy continually. Wind turbines only work when there's wind. Solar is contingent on the sun, but the anaerobic digester continuously produces power around the clock." 

Apart from producing electricity for sale, the CHP heat is reused and circulated by pipeline circuits to maintain the digester's constant 37ºC. The fully containerized and modular 2G cogeneration plant is producing enough thermal energy to heat office space, the dairy barn, and the Green's home on the Stratford, Canada farm. The manure processed through the digester is also used to fertilize the Green's 303-hectare (750-acre) farm.