Schäffer, MichaelMichaelSchäfferBeloki, AitorAitorBelokiMacias, SergioSergioMaciasRiesco, AntonioAntonioRiescoBähr, DavidDavidBährFischer, PeterPeterFischerSanchez, EduardoEduardoSanchez2025-07-152025-07-162025-07-152025-06https://publica.fraunhofer.de/handle/publica/489555The aim of project HIGREEW was to develop a novel type of flow battery system with aqueous organic electrolytes using a European supply chain in order to minimise material dependency and increase sustainability. In this work we present the final steps of the project, the construction and commissioning of a kW-scale aqueous organic redox flow battery (AORFB) prototype and its implementation in the real environment at "La Plana Hybrid Pilot Plant" near Zaragoza, SpainenElectrochemical energy storageStationary energy storageRedox-flow batteriesSustainable energypresentation