Based on the example of the Hamburg district of Wilhelmsburg, this book presents a strategic approach to the energy conversion of a district, which aims to be almost exclusively supplied by renewable and locally generated energy by 2050. For four years, this concept was applied practically as part of the International Building Exhibition Hamburg and now the first report is available. This volume, published by the IBA Hamburg GmbH, the Federal Environment Agency, and TU Darmstadt, sets the implementation and further development of the concept in the context of current discussions about the energy transition. Methods are reflected on against the background of nationwide experiences, and the social and economic viability of the whole scheme is examined critically. This analytical process culminates in suggestions for the ongoing development of the climate protection concept of Renewable Wilhelmsburg. The three editors present the necessary technical measures, as well as the social and political framework conditions for the forthcoming years.