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BauSIM 2020 – 8th Conference of IBPSA Germany and Austria – Online

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The BauSIM Conference has been organized under the auspices of IBPSA Germany and Austria since 2006 and takes place every second year. Building and district simulations and associated methodologies are at the focus of the conference. Emphasis is also placed on complementary topics such as building information modelling (BIM), component-level simulations or monitoring and operation of buildings and urban systems. The conference addresses stakeholders from science and education, the construction industry (design, planning, construction and operation), software development and public administration. It provides a forum for presenting research results and for multidisciplinary discussions of the latest trends in the field of simulation-based design of sustainable buildings and districts.


Linking and integration of data are increasingly shaping developments in both, building simulation and BIM. Based on the contents of the previous conferences, BauSIM 2020 will thus put a special focus on topics related to this most relevant field of research, including the development of digital twins, the use of IoT technologies for energy optimization of buildings and districts as well as the use of machine learning in the context of building operation and user behaviour.


We are looking forward to your participation and to an interesting and inspiring conference.

Michael Monsberger | Christina J. Hopfe | Markus Krüger | Alexander Passer


BauSIM 2020 – 8th Conference of IBPSA Germany and Austria

23-25 September 2020 Graz University of Technology


The BauSIM 2020 will be held online


On 9 July 2020 the Conference Board unanimously decided to hold the BauSIM 2020 as an online conference. The decision was made based on the survey conducted among authors and in light of recent developments related to Corona. Please read the following information.



  • BIM-based planning tools and integration approaches
  • District - building - system – human
  • Lifecycle-oriented modelling and simulation of buildings and urban systems
  • Modelling of building physics on construction component level
  • Numerical procedures, optimising and implementation
  • Product data and databases
  • Validation scenarios and quality management
  • Monitoring and optimising operation of buildings and urban systems
  • Teaching, training and further education in the field of simulation
  • Knowledge transfer into simulation practice and case studies

Detailed list of conference topics




Dr Ruchi Choudhary
Dr Ruchi Choudhary is Reader of Architectural Engineering in the Engineering Department at University of Cambridge. She specializes in simulation methods for predicting energy demand of the built environment. She is leading the research group on Digital Twins of Built Environment at the Alan Turing Institute (2018-2021). At Cambridge, she leads the multi-disciplinary Energy Efficient Cities Initiative, initially funded by a Science & Innovation award at Cambridge. She is also co-Investigator of the Cambridge Centre for Smart Infrastructure & Construction. Her research spans simulation-based methodologies for energy management of buildings; uncertainty quantification in building simulation models; and multi-disciplinary interactions influencing energy use in cities.  She is leading projects on modelling underground heat and city-scale geothermal systems, urban farming, and end-use energy demand modelling. In 2019 she became fellow of the International Building Performance & Simulation Association (IBPSA). She is elected chair of IBPSA-England since 2018. She is on the editorial board of J. of Building Performance Simulation, BSER&T the CIBSE Journal, Sustainable Cities and Society, and ICE J. of Smart Infrastructure & Construction.


Dr.-Ing. Steffen Robbi
The digital transformation of the building sector must contribute to a significant increase in resource, energy and cost efficiency. Driven by this aim, Dr.-Ing. Steffen Robbi co-founded the innovation lab Digital Findet Stadt, platform for digital innovations in the construction and real estate industry. Previously, he was responsible for Digital Building Technologies as Business Manager and Senior Engineer at the AIT Austrian Institute of Technology. His first experiences in shaping an innovative business model that achieves rapid market growth with sustainable technologies, was at the German start-up and now internationally renowned company Cloud&Heat Technologies.


Impulse lecture - Time to Despair?

The construction industry has the largest share in what is probably the greatest challenge facing humanity today. In this industry, building performance simulation offers a solution for this challenge, which saves costs at the same time. How is it possible that this solution is still ignored by the major decision makers today? What can we do?


Dr. Sven Moosberger
Dr. Sven Moosberger is co-founder and co-CEO of EQUA Solutions AG Switzerland. In this role, he has accompanied building performance simulation in the German-speaking world over the past ten years on its way from research to both education and planning practice. His experience ranges from extensive validation studies, model development for product design, development and implementation of training courses to project management of real construction projects in the fileds of both building pyhsics, HVAC engineering and building automation. Today he works intensively on the application of building simulators during operation.

Graz University of Technology - Institute of Building Construction
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Marta Mierzejek
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