Background Despite technological advances and environmental benefits, the use of biogas as an energy source is still limited. To optimise its environmental and economic benefits a systematic approach to biogas production and consumption is needed. In certain situations, biogas is a cost-efficient and environmentally-friendly option for both energy production and consumption. Objectives The overall aim of the project is to demonstrate the potential of biogas to become a major contributor to energy production in Europe and an important tool in mitigating greenhouse gas (GHG) emissions. To encourage decision-makers, entrepreneurs and other stakeholders in the EU to support an increase in biogas production and consumption, BIOGASSYS will demonstrate a sustainable system for biogas production and provide solutions and best practices that can be used to combat critical stages of the biogas lifecycle. Specific objectives include: To demonstrate methods to incorporate by-products, waste and other biomass into biogas production; To demonstrate innovative applications of biogas (e.g. as a duel fuel supply in freight vehicles, as a fuel for ferries and tractors, and for generating electricity in private homes); To demonstrate alternative commercially-viable uses for by-products of biogas production (for instance, sludge) such as for bio-fertilisers for agricultural use; To demonstrate partnership models to involve businesses and other organisations in biogas production and use; and To demonstrate methods and tools that encourage and enable new biogas producers. Expected results: A total reduction in CO2 emissions of 180 000 tonnes; An increase in biogas production of 500 GWh in Skåne; An increased interest in biogas production and the establishment of five new production plants; An increase in the consumption of biogas, with 3 000 more biogas fuelled vehicles on the market; A 100% increase in the number of applications for biogas in Skåne; A guide to the sustainable production and consumption of biogas aimed at investors and decision-makers; and A GIS-based tool for planning and modelling biogas production plants, based on technological, economic and environmental criteria.