The energy transition is going to change the framework of the German energy system fundamentally. The primary goal thereby is to mitigate climate change, which demands a reduction in the usage of fossil fuels. The Chair for Energy & Resource EconomicS (CERES) deals with the economic analysis of regulation in energy, climate and resource politics. Main analytic instruments are the use of numerical simulation models (esp. CGE models), as well as experimental and econometric methods, to quantitatively estimate and evaluate the welfare effects of political interventions. Next to research and teaching, the chair is engaged in science-based policy-consultancy.