This study addresses the challenges European cities are facing within global climate mitigation policy and explains the contributions biomass can offer to reduce the use of fossil fuels. The study mentions seven European cities, including Stockholm, Sweden; Göteborg, Sweden; Copenhagen, Denmark; Ulm, Germany; Pecs, Hungary; Paris, France; and Graz, Austria, that demonstrate how bioenergy is integrated into the urban energy system, whether for heating, transport, cooling, or electricity purposes. It stresses that the deployment of renewable energy is becoming a major political issue on the global, national, and community level and it provides examples and concepts for the role of bioenergy in cities with more than 10,000 inhabitants in Central and Northern Europe.