Life cycle assessment of the integrated generation of solid fuel and biogas from biomass (IFBB) in comparison to different energy recovery, animal-based and non-refining management systems

► Life cycle assessment of energy production from semi-natural grasslands. ► Comparison of fuel production by dewatering, dry fermentation and hay combustion. ► Highest conversion efficiency and savings of fossil fuels by thermal conversion. ► Low efficiency by fermentation due to limited digestibility of the mature biomass. ► Biomass-based energy production leads to increased acidification and eutrophication.