Alternative markets for digestate: Growing energy grasses on brownfield land

Agriculture is by far the largest market for digestate, however alternative options could help the AD industry be more resilient to fluctuations in demand. Using digestate on brownfield land as a biofertiliser to grow energy grasses as feedstock for AD is a potentially viable alternative.

The case study and report detail the findings of the demonstration project undertaken in 2015 on the former landfill site at Llwyn Isaf in Gwynedd, North Wales.  It showed that it is both financially and practically viable to use food-based digestate produced by the adjacent AD plant to grow energy grass as a feedstock for AD.