1 The Department of Environmental, Social and Spatial Change, Roskilde University2 Environment, Energy, Transport - Regulation, Innovation, and Climate Policy, Department of People and Technology, Roskilde University3 Designing Human Technologies, Administration Department of Roskilde University, Roskilde University4 Environmental Risk, Administration Department of Roskilde University, Roskilde University
A spreadsheet model was developed, which can be used as a tool in the initial phases of planning a centralized biogas plant in Denmark. The model assesses energy production, total plant costs, operational costs and revenues and effect on greenhouse gas emissions. Two energy utilization alternatives are considered: Combined heat and power and natural gas grid injection. The main input to the model is the amount and types of substrates available for anaerobic digestion. By substituting the models’ default values with more project specific information, the model can be used in a biogas projects later phases to provide data for other documents needed such as economic and environmental assessments.