The energy balance of utilising meadow grass in Danish biogas production

摘要: Abstract This paper presents a study of the energy balance utilising nature conservation biomass from meadow habitats in Danish biogas production. Utilisation grass production Denmark represents an interesting perspective for enhancing open grassland habitats, while introducing alternative to use intensively cultivated crops as co-substrates manure based plants. The was investigated by using: data collected previous investigations on productivity areas, different relevant geo-datasets, spatial analyses, and various statistical analyses. results show that values return invested (EROEI) ranging 1.7 3.3 can be obtained when grasses local total national net gain (NEG) estimated more than 600,000 GJ corresponding ≈15% 2012.