1. Hydrogen South Africa (HySA): Systems and Validation Centre; University of the Western Cape; Robert Sobukwe Road Bellville 7535 Cape Town South Africa
2. School of Automation; Wuhan University of Technology; 122 Luoshi Road Wuhan 430012 China
3. Institute for Energy Technology; Instituttveien 18 Kjeller NO-2007 Norway
4. Institute of Low Temperature and Structure Research; Polish Academy of Sciences; P.O. Box 1410 Wroclaw 50-950 Poland
5. Centre for Advanced Materials and Smart Structures; Polish Academy of Sciences; Okolna 2 Wroclaw 50-422 Poland