Quality infrastructure for sustainable hydrogen solutions in NamibiaHelga Hansen, Simasiku Matali, Moritz Ackermann, Fabian Plag, Olav Werhahn, Arne Krietsch, Arnas Lucassen and Michael BeyerEPJ Web Conf., 323 (2025) 03001DOI: https://doi.org/10.1051/epjconf/202532303001