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

Deadline extended to March 20th. Sign up today for the LDSd!
??Signup for LDSd
A Call for Presentations is now open.
Deadline April 6.

Submit Proposal


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

  • Call for Presentations

    Building modeling professionals and practitioners are invited to submit presentation proposals between 15-30 minutes in length or 45-90 minute panel and seminar sessions. Proposals can cover a broad range of topics addressing the needs of the building performance modeling community. Creative and interactive presentation formats are strongly encouraged.

    The 2020 Building Performance Analysis Conference and SimBuild requests the following submission types:

    • Individual presentations on projects, research or career/business development topics
    • Panel with three to four industry experts on a current topic of interest or team case study
    • Seminar Session with a chair and one to four speakers on one of the following topics

    Topics include:

    Low Carbon Future

    • Embodied Carbon Analysis
    • Resiliency
    • Grid-interactive Buildings
    • Urban Scale Modeling
    • Electrification

    New Technology and Trends

      • Modeling Advances (New techniques, automation, scripting, etc.)
      • Data Exchange and Interoperability
      • Big Data Applications for Large Scale Simulations

    Health, Wellness, and Comfort

    • Daylighting
    • Occupant Behavior
    • Comfort / Health
    • Circadian Lighting

    Energy Performance and System Simulation

    • Intelligent Building Operations
    • Pre and Post Occupancy Evaluations
    • Commissioning and Fault Detection

    Codes & Standards and Programs

    • All-electric Baselines and Design
    • Program Design and Performance

    Presentation proposals are due April 6, 2020. If accepted, presentations will be due in July 2020.

    Submit Proposal

  • Conference Papers
    Revised papers due March 27, 2020

    Submit Revised Paper

    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.

  • Registration and Housing


    Early Bird – Now – July 6th
    Member $680.00
    Non Member $730.00
    Registration – July 7th – Onsite
    Member $730.00
    Non Member $780.00
    Students $350.00
    Speaker $450.00
    One Day Rate – Available Aug. 1 $300.00
    Virtual Conference Only M $129.00
    Virtual Conference Only NM $179.00


    Hotel reservations can be made at the Conference Hotel. The conference hotel is the Westin River North? located at 320 N Dearborn St, Chicago, IL. ASHRAE has a block of rooms available at the negotiated group rate of $219+ tax per night. To make reservations at the group rate, click this link:
    ?https://book.passkey.com/gt/217915110?gtid=cf32b3c2418d3085d2727de0b81899a2. Room reservations must be made by Thursday, July 16th to guarantee availability and the negotiated room rate.?

  • 2020 ASHRAE LowDown Showdown

    Sign up NOW for the 6th Annual ASHRAE LowDown Showdown (LDSd) which will take place at the 2020 Building Performance Analysis Conference and SimBuild on August 12 – 14, 2020 in Chicago, Ill.

    Each year of the LDSd competition, we ask participating teams to take on a new challenge in building performance analysis.? For 2020 when we ask the question “How low can you go?” we are not only talking about energy use.? Taking a page from New York City’s groundbreaking new Climate Mobilization Act that requires building owners to reduce their carbon footprint, the 2020 LDSd challenges participants to design a new building that has a low carbon or carbon neutral footprint.

    The 2020 LDSd model building will be located in New York City.? Participating Teams will design a 300,000 sf, 15 story mixed-use building located anywhere in the five boroughs.? The building will contain retail space, residential space and a full-service restaurant.

    Learn More

  • 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