The University of Applied Sciences Landshut with its Technology Centre Energy (TZE) is coordinating the project HyFlow. ULA take the role of preparing a slim, hierarchical and robust management structure in order to ensure a smooth workflow and to fully exploit the developed ideas. In addition, the TZE has a fully instrumented laboratory for the investigation of redox flow cells and test equipment for the investigation of redox flow systems and their possible applications. A fully operable redox flow battery test bench including electrical control of the stacks and battery management system (5 kW / 10 kWh), temperature measurements all over the system and thermal control of the electrolyte is installed at the TZE. The test bench will be used as basis for developing a small scale demonstrator of the new hybrid energy storage system (WP3). Moreover, a 10 kW / 100 kWh redox flow battery container, installed at the TZE, is used to verify simulation models of redox flow batteries and investigate their application in the electrical grid (WP2). The research results gained at the TZE, show that adapted operating strategies for decentralized energy systems offer economic optimization potential and that the coupling of energy systems with electrical storage systems will play a key role in the future. Test benches are used to investigate self-developed, specialized simulation environments, the practice-oriented interconnection of energy converters (CHP, PV), electrical storages (currently lithium battery storage and redox flow batteries), thermal storage and load (office, laboratory) for single and multi-family scale. The concept presented in HyFlow therefore offers an optimal basis for the continuation of these research activities within more complex energy systems with higher performance requirements and the integration of further know how in the existing test benches at the TZE.