Organization profile

Organisation profile

Head of Research Group: Kirsten Engelund Thomsen.

Both in regards to new building construction and renovation of existing buildings, there is great potential for improving energy efficiency. For example, 1/3 of Denmark's energy consumption is used for space heating. This necessitates considerable effort in energy-efficient renovation.

Need for new knowledge

There is a great need to establish how much technical requirements for new construction and renovation can improve overall energy efficiency. Which instruments have the greatest impact on energy consumption, and how can we influence building owners to implement energy-efficient renovations?

Research efforts 

The research group examines new possibilities for integrated energy production in buildings. In addition, the group will analyse and optimize the interaction between buildings and supply systems in order to activate the buildings dynamics for smoothing out supply fluctuations. 

Furthermore, the group carries out analyses and demonstration projects, in order to demonstrate in practice how significant reductions in energy consumption can be achieved while maintaining a good indoor climate.

The group will continue to work on assessing the potential of the entire building stock for energy efficiency in the long term in connection with renovation.

Finally, the group conducts surveys of user experiences and satisfaction with energy-efficient new construction and refurbished construction. 


The research group collaborates with Danish building authorities, international research institutions and the EU Commission to strengthen the scientific basis for the requirements of the energy consumption of buildings.

In cooperation with the building industry, national and international work is being done on the development of calculation methods, standards and guidelines aimed at increased energy and environmental requirements for new buildings and renovations. This collaboration includes projecting architects, consulting engineers, contractors, construction industry, builders, housing associations and municipalities.


The group helps to analyse and define revisions of the energy requirements in the Danish building regulations.

The group develops tools and SBi-Directions that can help project architects and engineers, executives and suppliers, as well as owners and users of buildings, to achieve energy savings. This work is based on a holistic view that includes energy supply, construction technology, architecture, functionality, operation and maintenance, as well as health, indoor climate and economy.

Finally, the knowledge is translated and conveyed into practice through the continued and further training of building professionals at SBi-courses and at the master's program in building physics.


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Projects 2010 2022

Research Output 2009 2019

A hybrid modelling method for improving estimates of the average energy-saving potential of a building stock

Brøgger, M., Bacher, P. & Wittchen, K. B., 15 Sep 2019, In : Energy and Buildings. 199, p. 287-296 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Energy conservation
Linear regression

Building stock energy modelling

Brøgger, M., 2019, Aalborg Universitetsforlag. 68 p. (Ph.d.-serien for Det Ingeniør- og Naturvidenskabelige Fakultet, Aalborg Universitet).

Research output: Book/ReportPh.D. thesisResearch

Open Access

Documentation of the performance gap

Jensen, S. Ø., Wittchen, K. B. & Rose, J., 10 Apr 2019, The Building as the Cornerstone of our Future Energy Infrastructure: The importance of dynamic and real data for reliable assessment. 5 p.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch

Open Access

Activities 2012 2019

Potentialer for energieffektivisering og fleksibilitet i bygninger

Ole Michael Jensen (Lecturer)
6 Jun 2019

Activity: Talks and presentationsConference presentations


SBi-kursus Bygningers energibehov og Be18

Kirsten Engelund Thomsen (Lecturer)
4 Apr 2019

Activity: Talks and presentationsTalks and presentations in private or public companies

Keynote: Policies and research of low carbon construction in Denmark

Harpa Birgisdottir (Lecturer)
20 Mar 2019

Activity: Talks and presentationsTalks and presentations in private or public companies

Press / Media

5 gode grunde til at udfylde den gamle hulmur

Kim B. Wittchen


1 item of media coverage

Press/Media: Press / Media

Bolig+ viser vejen for fremtidens energineutrale etageboliger

Henrik N. Knudsen


1 item of media coverage

Press/Media: Press / Media

Det er en god idé at udfylde den gamle hulmur

Kim B. Wittchen


3 items of media coverage

Press/Media: Press / Media