What is Fibrowatt? Power from Poultry Litter™ Fibrominn, the first poultry-litter fueled power plant in the U.S., opened in Benson, Minnesota, in 2007. Fibrominn is a subsidiary of Fibrowatt LLC, which develops, builds, owns and operates electrical power plants fueled by poultry litter and other agricultural biomass. Fibrowatt LLC is owned by Homeland Renewable Energy…