The conference concerns the "SUNIES" program (https://www.sunies-fuelcell.eu/) within the framework of the bilateral cooperation between Greece and the Federal Republic of Germany for the promotion of competitiveness, entrepreneurship and innovation. The main participating bodies are CERTH (https://www.certh.gr/), as coordinator, and PPC SA (https://www.dei.gr/en/i-dei/i-etairia/omilos- dei-ae/dei-ae) from the Greek side and respectively Mitsubishi Hitachi Power Systems Europe GmbH (https://power.mhi.com/regions/emea/), the GWI Research Center (https://www.gwi -essen.de/) and the University of Duisburg-Essen (https://www.uni-due.de/en/) from Germany.   The objectives of the project are to study the functionality of a hybrid solid oxide fuel cell (SOFC) system under  ...