Based on global warming, decline of existing energy resources, exponential population growth, increasing geopolitical instabilities which are the result of uncertainty of the future energy supply, together with the fact that buildings represent about 40% of total energy consumption worldwide leads to a conclusion that a good architecture is not possible without a good energy concept.


    The buildings represent the bigger part of one of the biggest problem of our society - fair distribution of available resources. Therefore architecture can be a big part of the solution. Never before in the history of our civilization architecture had such a chance to gain one of the central roles in the society. Good architecture is always representing the expression of the cultural values, priorities and hopes of a society. Now it can produce a physical response for the existential challenges.


    A sustainable development by definition cannot get along with the decay in architectural quality of our built environment. A building with low architectural quality and good energy concept is not an actual benefit for a sustainable future. The objective of research and teaching at the Institute is the maximization of energy performance of buildings and cities, and the development of architectural and urban projects through form and structure optimization toward energy efficiency.

  • TEAM

    Head of the Institute

    Brian Cody



    consultation-hour - wednesday 11:00 - 12:00


    Project Assistant/Lector

    Sebastian Sautter



    Martin Schneebacher


    Student assistant


    Office hours

    Monday - Friday, 09:00 - 12:00



    Aleksandar Tepavcevic

    consultation-hour - friday 11:00 - 12:00



    Alexandru Dan


    Student assistant



    Christiane Wermke



    Minoru Suzkuki


    Student assistant



 / E

Building Energy and Environmental Performance Tool

Prof. Brian Cody






Fields of reference

Aerodynamics; Architecture; Building ecology; Construction Physics; Energy Saving; Power Technology; Renewable Energy; Solar Architecture; Environmental Design; Heat Technology.



How we evaluate, reward or punish measurements, strategies, concepts and their results as a society, is going to influence the architectural trend significantly. That is why the development of methods for the evaluation of energy efficiency in the context of the built environment is an important and yet by architects undervalued factor for its further development. Energy efficiency is the reduction of the energy demand of a building and creating optimal indoor conditions of its internal spaces at the same time. The term energy efficiency more often than not is unfortunately misinterpreted and the decrease of the energy demand of a building is generally seen as energy efficiency. Energy efficiency represents the relation between output (use) and input (resources). It is about how much value we get from the used energy. In this context of the climatic performance of buildings, the energy efficiency is the relationship between the quality of the indoor climate and the quality of the energy demand. Generally speaking, tools to regulate the energy efficiency of buildings usually only deal with the energy demand rather than energy efficiency. The BEEP (Building Energy and Environmental Performance) method was developed to identify the real energy efficiency of a building and to allow a thorough comparison between different design options. Results of case studies which were analyzed with this very method, clearly show that a low energy consumption does not equal a high energy efficiency. This complex evaluation method is able to lead to very different architectural solutions than common techniques or methods. This new method developed within the scope of the above mentioned research project was presented to the scientific community in Helsinki in June 2007 on an international congress. Results of further studies regarding different options for refurbishments of an office building was published in 2010.



January 2006 - May 2010



Cody, B.: “Building Energy and Environmental Performance tool  BEEP, Entwicklung einer Methode zum Vergleich der tatsächlichen Energieeffizienz von Gebäuden“, in: HLH Fachzeitschrift, Verein Deutscher Ingenieure, Springer-VDI-Verlag, Düsseldorf, Januar 2008



Cody, B.: “Building Energy and Environmental Performance Tool BEEP, Development of a method to determine the true energy efficiency of buildings”, Conference Proceedings, 9th REHVA World Congress Clima 2007, Helsinki, Finnland, 2007




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