The prototype ECORE left the OHS headquarters in Schweitenkirchen on July 18 and arrived in Fulda on July 19. The complete solution for a sustainable energy supply consists of a PV inverter, a battery storage system, a heat pump, a hot water tank, an electrolysis system, a compressor and a fuel cell. This means that everything needed to supply a building with energy is built into the 20-foot container. The next version will be even more compact and more appealing in design.