Freiburg, Germany-based Concentrix Solar, announced that Henning von Barsewisch will join its management team as chief sales officer, effective in September. For the past six years, von Barsewisch has built the British subsidiary of REpower Systems AG, a global wind turbine manufacturer with headquarters in Germany. Before that, von Barsewisch, who holds a degree in industrial engineering, was employed as vice president of business development for the Helm Tool Co., an American manufacturer for injection molding tools. He also worked as a consultant for Bain & Company.