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Analysing key constraints to biogas production from crop residues and manure in the EU
The journal paper presents a spatially explicit method for making regional estimates of the potential for biogas production from crop residues and manure, accounting for key technical, biochemical, environmental and economic constraints.
Some findings include:
- The EU biogas production potential from crop residues and manure is about 0.7 EJ/year, nearly double the current EU production of biogas from agricultural substrates, most of which does not come from residues or manure.
- The potential could easily be 50% higher or lower, depending on the stringency of economic, technical and biochemical constraints.
- The potential is particularly sensitive to constraints on the substrate mixtures' carbon-to-nitrogen ratio and dry matter concentration.