The workshop is aiming for developing key concepts and synthesizing the state of the art of urban transformation processes in relation to climate change, decarbonization and energy transition. Thematically the workshop is motivated by the worldwide growing urbanization which leads to a spatial concentration of population, economic activity and mobility on the one hand and by increasing CO2 emissions and climate change on the other. In order to promote pathways towards urban energy transition and decarbonization several strategies should be considered. Among those, the production, distribution and consumption of renewable energy are relevant key areas. There is still a lack of systematic integration of concepts, models and empirical evidence, combined with an insufficient knowledge base and a broad range of uncoordinated and dispersed solutions.