In order to combat climate change, we need to drastically reduce raw material consumption. There is potential for savings in both the automotive and construction sectors. Another challenge is the necessary expansion of renewable energies: In the future, we will also have to use metallic raw materials to decarbonise energy production. It is therefore all the more important that wind power and solar plants Use circular potentials to reduce the consumption of primary raw materials. In this study, we examine the potential and current status of recycled energy use in the field of renewable energies in Germany and Europe. How are recycling and recycling potentials currently being investigated and exploited? What economic, political and legal levers are available along the production chains to expand circularity?