Gundersen Envision Anaerobic Digesters

From July 1st 2018 through September 2019, Gundersen Envision hired Northern Biogas to manage, operate, and maintain their anaerobic digester sites in Sun Prairie and Middleton, WI.  Substrates are added to dairy manure supplied from surrounding farms to create 2.7 MWh of electricity, by using a total of three digester vessels and two Jenbacher engines.