Due to the increase in volatile, renewable generation in the electrical grids, more and more storage facilities are needed, whose reaction time and storage duration are on different time scales. Flywheels are considered the ideal short-term storage devices for grid stability, as they combine high performance, and therefore extraordinary effectiveness, with extreme cycle stability and high efficiency. Superconducting bearings of the Flywheel rotor also ensure extraordinary intrinsic safety and freedom from wear.

However, a grid connection of these accumulators in the area of distribution networks has not yet been sufficiently investigated and established. The main project goals are therefore to develop the grid connection of a 500 kVA Flywheel and to test the Flywheel in a real grid application.