Energy is more expensive than ever. As part of the energy transition, the expansion of renewable energies should not only contribute to climate protection, but also make us economically less dependent on fossil fuels. However, efforts to make optimum use of as much wind and solar energy as possible are currently being hampered by grid bottlenecks. Professor Ingo Jeromin from the Department of Electrical Engineering and Information Technology at h_da and his project partners are working on the “Grid4Regio” research project to better exploit the potential of existing grid infrastructure at regional level, relieve the transmission grids and thus counteract the sometimes controversial expansion of the grid.