University of Bremen, TU München: Dipl. Ing. Elektrotechnik, Dipl. Wirtsch. Ing; Central Corporate Planning and Development Siemens AG, Senior Partner Roland Berger Strategy Consultants, Founderr and CEO Howaldt Energies Groupe, more corporate investments and member of advisory boards, among others Chairman of the Advisory Board greenergetic GmbH and milk-the-sun GmbH.