Biogas and fertilizer potentials from residual biomass from Novozymes (Novogro®) and Novo Nordisk (yeast slurry) is exploited and realised at a biogas plant with in the symbiosis. At the biogas plant, biogas is produced and upgraded to natural gas quality through a refining process where carbon dioxide and hydrogen sulphide are removed from the product. Biomethane is send to local companies (Gyproc, UniBio and Kalundborg Refinery) and to end consumers via the national gas grid.
Sulphur from the hydrogen sulphide fraction is collected and reused in fertilizer products together with the gasified biomass residual. Kalundborg Bioenergy is 100 % owned and operated by Bigadan.