The project is about finding factors of success for concepts that are aimed at the complete energy supply (electricity and heat) on the basis of renewable energies. Focus of the project is bio-energy. An extensive examination including ecological and social chances and risks is planned.The project is about finding factors of success for concepts that are aimed at the complete energy supply (electricity and heat) on the basis of renewable energies. Focus of the project is bio-energy. An extensive examination including ecological and social chances and risks is planned.