Celebrating 125 Years

2020 Building Performance Analysis Conference & SimBuild

Co-organized by ASHRAE and IBPSA-USA

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2020 Building Performance Analysis Conference & SimBuild Co-organized by ASHRAE and IBPSA-USA

August 12 – 14, 2020 | Chicago, IL

Paper submissions are closed. A call for presentations will be announced soon. 

ASHRAE and IBPSA-USA will jointly host the annual Building Performance Analysis Conference & SimBuild for 2020 which will be held at the Westin River North on August 12-14, 2020 in Chicago, Illinois. The focus of the 2020 BPAC Conference will be to improve the decision making process through the application of simulation and modeling over the entire building life cycle, from the earliest concept through operation and maintenance to achieve the goals of zero energy, zero carbon, or other high performance targets. The conference brings together the building energy analysis and performance simulation community for three days of discussions, seminars, and short courses. Practitioners, vendors, researchers, utility and government officials, and owners will address the practices of energy modeling and building performance simulation using existing simulation tools, software development, and future simulation research and applications.

The anticipated conference program consists of Keynote Speakers, Invited Speakers, a Call for Papers, a Call for Presentations and the sixth ASHRAE LowDown Showdown. Special panels may be offered by industry leaders and organizations.


  • Focus on practical applications using existing tools
  • ASHRAE LowDown Showdown modeling challenge
  • PDHs, AIA LUs and LEED AP credits available
  • Virtual conference
  • Vendor demonstrations

Pre-conference courses on the 10th and 11th

Conference Papers 

The theme of the conference is "Integrated Building Design and Analysis to Achieve Zero Carbon." The conference sought papers on topics involving the use of innovative approaches for integration of modeling tools for better building design, performance, and operation to meet aggressive targets for compliance, energy reduction, decarbonization, and resiliency. The topics for the conference include (but are not limited to):

  • Early Design Modeling and Analysis
  • Component and Systems Modeling and Load Analysis
  • Codes, Standards, and Compliance Modeling
  • Modeling Carbon
  • Lighting and Daylighting
  • Occupant Behavior, Comfort / Health, Wellbeing
  • Urban Scale Modeling
  • Data Exchange and Interoperability
  • Big Data Applications for Large Scale Simulations
  • Modeling Advances (New techniques, automation, scripting, etc.)
  • Grid-interactive Efficient Buildings and Resiliency
  • Education
  • Intelligent Building Operations
  • Miscellaneous Other Topics

In addition to referred papers, the conference will include informal seminar presentations. A call for a presentation-only track will be circulated in early 2020 with abstracts due in February. The 6th Annual LowDown Showdown, vendor workshops, and invited speakers will complete the conference program.

Steering Committee

Carrie Brown, Chair
Aaron Boranian
Annie Marston
John Bynum 
Lauren Wallace
Marty Brennan
Supriya Goel
Susan Collins 
Zheng O’Neill 

Scientific Committee

Supriya Goel, Chair
Wangda Zuo
Weimin Wang
Jared Landsman