The International Building Performance Simulation Association is a non-profit international society of building performance simulation researchers, software developers, and practitioners. IBPSA is dedicated to improving the built environment via education, research, convening conferences, and fostering communication. With 29 regional affiliates and more than 4,000 members, IBPSA is the world’s leading organization dedicated to advancing the methods and applications of building performance modeling. IBPSA is governed by a Board of Directors elected by the membership. Volunteer involvement in Board committees is welcome.


IBPSA is founded to advance and promote the science of building performance simulation in order to improve the design, construction, operation, and maintenance of new and existing buildings worldwide


Building Simulation offers the potential to cope adequately with building performance related concerns, as well as with the construction process. Increasingly, computer based models (programs) are being employed to aid in the design, operation, or management decision making process. The DEVELOPMENT, EVALUATION, USE IN PRACTICE, and STANDARDIZATION, of the models and programs in therefore of growing importance. For building Design, Construction, Operation, Maintenance and Management activities, there is also an urgent need for the INTEGRATION of “generally applicable” and “generally accepted” methods and tools, for various applications, each having various levels of complexity and/or various types of end-users. Also important is the TECHNOLOGY TRANSFER issue within the building modeling field.


  • Identify problems within the built environment that may be solved by improved simulation tools and techniques;
  • Identify the performance characteristics of buildings on which simulation should be focused;
  • Identify building performance simulation research and development needs and transfer new developments to the user;
  • Promote standardization of the building simulation industry; and
  • Inform and educate its members and the public regarding the value and the state-of-the-art of building performance simulation.

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