backyard-sized biogas machine

"(...) backyard-sized biogas machine that turns organic kitchen waste, garden waste, and pet droppings into pressurized renewable gas, which can be hooked up to a gas barbeque or burned indoors for heat. (...) Instead of having waste shipped to a central location, the idea is to extract and use energy from organics at the source. (...) capable of generating enough gas to cook three meals daily, assuming ideal conditions where all household organics and pet waste are put into the system." +info