The main focus of the department is the development of energy system models for the analysis of the transformational processes taking place in the supply and use of energy in Germany and beyond, in accordance with the political framework. Another area of focus is the techno-economic evaluation of energy systems based on energy demand, greenhouse gas emissions and costs, as well as consideration of the tailor-made integration of the national energy system into European and global supply networks. In addition, the analysis and evaluation of resource availability under the changing boundary conditions of future energy systems is being undertaken. The main goal is the provision of actionable knowledge for energy transformation for decision-makers in politics and business. The research work is carried out in close cooperation with the new Institute for Electrochemical Process Engineering (IEK-14).