In the medium-term, biomass is expected to be an important part of the German energy mix. In this journal article, Ecologic Institute's Wolfgang Urban and Michael Jandewerth (Fraunhofer UMSICHT) present the results of the project "Biogas Feed-In" which was sponsored by the German Federal Ministry of Education and Research (BMBF). The focus lies on the question of how processed biogas can be fed into the natural gas network under concrete local conditions. The article, which has been published in "Informationen zur Raumentwicklung", is available for download.