The workshop “Decarbonisation – 100% Renewable Energy and more”, was held on 9 November 2015 in Berlin, hosted by the German Environment Agency and organised by Ecologic Institute. It offered a valuable opportunity for decision-makers, academia, business and civil society from EU Member States, to exchange ideas and lessons learned on the design and implementation of longterm decarbonisation strategies and discuss how industrialised nations, regions and cities can mitigate greenhouse gas emissions in various economic sectors.