An electric power supply with 100% renewable energies will be based on decentralized small generators and less large power plants. Thus, the decentralized small generators must provide grid control. This contribution presents solutions to replace rotating masses for momentary reserve and providing primary reserve power with fluctuating generation as well as with battery storages.
Eberhard Waffenschmidt studied electrical engineering at the Technical University (RWTH) in Aachen, where he received his PhD degree. Between 1995 and 2011 he was employed at Philips Research. Since 2011 he is Professor for electrical power grids at the Cologne University of Applied Science. His special interest is in identifying and removing obstacles on the way to a 100% use of Renewable Energy.