Dipl. Ing. Bernhard Rill studied electrical engineering (energy technology) in Munich. Since 1989 he is working in the field of power supplies. He joined Gustav Klein again 2005 where is actual position is Vice President. Gustav Klein is developing and manufacturing power supplies since 1948. Before he was working 9 years for Gustav Klein, 2 years as product manager at Online UPS Systems, and 5 years as global OEM Account manager at APC. He has a long experience with all kind of stationary power supplies and their different battery systems. Since 2016 he is a Member of the Board of “The German Energy Storage Association” BVES.