The hydrogen-based energy Hub of the distribution system operator RESA is a fully integrated pilot scale Multi Energy System (MES) aiming at testing the future of the distribution network management, i.e., networks interconnection (electricity, heat & hydrogen), intersectoral connections (energy, industry & mobility), bidirectionality between transport and distribution grid. In this perspective, the RESA’s hydrogen hub integrates every equipment required to meet site energy efficiency objectives (waste heat recovery) and optimize operation flexibility.