Alexander Dauensteiner studied mechanical engineering at the University of Stuttgart and graduated in 1998. After a few years at the Fraunhofer Institute IPA in Stuttgart with a focus on eco-design and life cycle management, he moved to the Wuppertal Institute for Climate, Environment and Energy and worked with Ernst Ulrich von Weizsäcker and Amory Lovins on the topic of 1-litre passenger cars. In 2002, he moved to the heating appliance manufacturer Vaillant as a project manager for fuel cell heating appliances and became Head of Product Management Innovation three years later. From 2015 to 2017 he was Head of Product Management System Products and from February 2017 to October 2019 Senior Association Manager Digitalisation of the Vaillant Group. Since October 2019, he has been Product Line Owner Fuel Cells and is responsible for the global hydrogen activities at Viessmann.