THM is a proven research focus on energy technology and energy storage. Within this focus, an innovative cross-technology district storage facility is to be built within the framework of the already approved research project FlexQuartier in Gießen. These technologies are key technologies of the energy transition and require appropriate research infrastructure. The infrastructure should be available in the long term for energy research in central Hesse. For this purpose, a technical hall is to be erected in a real quarter, for which funding is requested.