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Leaders of the partners in the ETES project stand in front of the pilot plant in Hamburg. Left to right: Michael Prinz, Managing Director Hamburg Energie; , Andreas Feicht, State Secretary, Ministry of Economic Affairs and Energy; , Peter Tschentscher, Mayor of Hamburg; Markus Tacke, Siemens Gamesa chief executive; and Professor Gerhard Schmitz of the Technical University of Hamburg (TUHH).Photo: Siemens Gamesa