A recent opinion by the Advocate General at the European Court of Justice is likely to trigger significant changes in how German energy regulation will be conducted in the future. NERA experts Tomas Haug, Dominik Huebler, and Lorenz Wieshammer take a look at the likely economic implications of the changes and find that while there is short-term uncertainty ahead, the longer-term consequences may be more limited and are likely to also have upside potential.