Co-production of ethanol, biogas, protein fodder and natural fertilizer in organic farming - Evaluation of a concept for a farm-scale biorefinery

► We investigated the addition of a biorefinery to an 1000 ha organic farm. ► We performed a technoeconomic analysis based on results from laboratory experiments. ► Four products were generated in a 1000 ha farm: ethanol, biogas, feed, and fertilizer. ► Such a biorefinery could supply 2 (based on fuel requirements) 1000 ha organic farms. ► Such a biorefinery could supply 3-4 (based on electricity) 1000 ha organic farms.