Four independent institutions are linked to the knowledge and technology network of Univ.-Prof. Dr.-Ing. M. Norbert Fisch and energydesign braunschweig. Their different backgrounds of research, planning and consultancy in the field of energy efficient architecture ensure interdisciplinary teamwork. About 50 architects, civil-, mechanical- and electrical engineers in Braunschweig, Stuttgart and Shanghai are covering all aspects of energy efficient building design. Intense cooperation with various manufacturers and contractors working in the service sector guarantees a direct reference to professional experience.Thus our focus remains on the human being and the economical and sustainable aspects of new developments.