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Membership & Conferences

ASHRAE and IBPSA-USA SimBuild 2016: Building Performance Modeling Conference


ASHRAE and IBPSA-USA SimBuild 2016:
Building Performance Modeling Conference

August 10-12, 2016 ∙ Salt Lake City, Utah

Lowdown Showdown
General Information   Virtual Conference Registration
Technical Program    Steering Committee   Sponsors



ASHRAE LowDown Showdown

Members of teams participating in the 2016 ASHRAE LowDown Showdown take time out from the team presentations for a group photo at the ASHRAE and IBPSA-USA SimBuild 2016: Building Performance Modeling Conference.

Held in conjunction with the conference, the ASHRAE LowDown Showdown modeling challenge showcased the work of eight teams and over 80 participants, who competed to model a net zero or below building. The baseline building was a 50,000 ft2, 3-story Outpatient Health Care facility.

Each team was comprised of at least one coach, captain and registered attendees who adopted roles on each team, such as engineer, architect, designer and energy modelers.  The teams were given a common playing field with “Model Building Requirements.”

A half day of the conference was devoted to the LowDown Showdown for the teams to present their projects, attendees to ask questions and voting.  The models were created using the available industry software thereby providing excellent hands-on examples of how to use different aspects of the software.

Teams were evaluated in five categories: energy, teamwork, practicality, creativity and workflow.  Conference attendees voted electronically for the best model in each category. The results were announced at a reception that evening.

Click a team name below to view the 2016 ASHRAE LowDown Showdown team projects and results:

Energy Derailment
Insane Energy Savers
Newbie Energizers
Outpatient Zero


Quest for Zero
The BEM Bang Theory
The DeeBees
The EUI Evangelists

The 2017 ASHRAE LowDown Showdown modeling challenge will be held in conjunction with ASHRAE’s Building Performance Analysis Conference (formerly Energy Modeling Conference) that takes place September 27 - 29, 2017 in Atlanta, Georgia.


Kjell Anderson to Deliver Keynote Address

Kjell_Anderson150x200.jpgKjell Anderson, AIA, cSBA, LEED AP, delivers a message of improving project performance by focusing on relationships between architects and modelers during the keynote address on Wednesday, August 10 at 8:15 am. 

His address is entitled “So Happy Together: Architects and Energy Modelers Informing Building Design.”

To meet Architecture 2030 goals, all project teams need to analyze passive and active design solutions from project outset, requiring a collaboration of energy modeling and architectural design efforts. While compliance modeling efforts are understood and widely performed, the early design process remains enigmatic to both modelers and architects.

Architects ask ‘how is this performing?’ and want various geometries compared with immediate answers; modelers want detailed data and enough time to perform simulations. Architects often fail to understand the loads they create with geometry and glazing, and modelers don’t often present their results clearly enough to get ideas across to architects and their clients. Architects, in many cases, never even meet the energy modeler on their project.

We can drastically improve project performance by focusing on the relationship between architects and energy modelers: forging a better process as outlined in ASHRAE 209, understanding each other’s language and constraints, learning to ask the right questions, and realizing the amazing things we can accomplish together.

Kjell is an Associate and the Sustainability Coordinator at LMN Architects, recipient of the 2016 AIA Architecture Firm award. He is a licensed architect, speaker and author of “Design Energy Simulation for Architects.” In addition to regular design work on LMN’s projects, he serves on the AIA Energy Leadership Group, is involved in energy code writing projects, and has taught building simulation at the University of Washington.”


General Information

The ASHRAE and IBPSA-USA SimBuild 2016: Building Performance Modeling Conference builds upon the success of the previous ASHRAE and IBPSA-USA joint conference held in Atlanta in September 2014. This conference combines the ASHRAE Energy Modeling Conference and IBPSA-USA SimBuild.

“The first jointly organized conference was held in 2014 and was a huge success in its ability to bring the building energy analysis and performance simulation community together and provide the conference content to serve attendees,” Dennis Knight, Conference chair, said. “The ASHRAE and IBPSA-USA SimBuild 2016 Conference seeks to build upon that success and further improve the industry’s ability to accurately model building performance.”

Modelers, software developers, owner and researchers will address the practices of energy modeling and building performance simulation using existing simulation tools, software development, and future simulation research and applications.


Technical Program

Final Technical Program
Download the Program >>   (Updated 8/23/2016)

The conference features some 100 speakers presenting practical applications of tools and case studies and papers on simulation, research and a deeper dive into current technology.

Conference paper sessions address a wide-range of current topics: model calibration and verification, urban scale modeling, uncertainty analysis, optimization, data visualization, reality captures for modeling, HVAC component modeling and load analysis, lighting and daylighting, CFD, energy auditing, life cycle cost and economic analysis, automation and scripting, combined use of tools, occupant comfort, energy efficiency and weather data.

Seminar (non-paper) sessions have an emphasis on simulation techniques and design. Case studies and demonstrations address standards and code compliance, such as ASHRAE Standard 205P, Standard Formats for Equipment Data Exchange, ASHRAE Standard 55, Thermal Environmental Conditions for Human Occupancy, and presentations on ASHRAE/IES Standard 90.1-2010, Energy Standard for Buildings Except Low-Rise Residential Buildings, ASHRAE Standard 205P, Standard Formats for Equipment Data Exchange, and IBPSA Project BIM/GIS Modelica Framework for Building and Community Energy System Design and Operation.

In all there are 17 conference paper sessions and 15 seminars with international participation from speakers.


Virtual Conference – Earn AIA LUs, LEED-AP Credits, ASHRAE Recertification PDHs

The Conference itself featured some 100 presentations, which are available in the on-demand Virtual Conference. 

The Virtual Conference is a recording of the presenter’s voice that is synced with the presentation. It includes a podcast and a PDF of the presentation slides in notes format in addition to the recording.

Additionally, the Virtual Conference includes a Quiz whereby a certificate with continuing education credits is awarded upon successfully completing the Quiz.  Credits awarded for all sessions are PDHs and most sessions are also approved for AIA Learning Units and GBCI credits for maintaining a LEED-AP certification.

In addition, recertification PDHs can be earned for ASHRAE’s Building Energy Modeling Professional certification and other certifications.

In all, Virtual Conference attendees can earn 45 PDHs.

To register for the Virtual Conference ($179, ASHRAE member, $129), visit https://www.ashrae.org/membership--conferences/conferences/virtual-conferences .


Steering Committee

The Steering Committee members are:

  • M. Dennis Knight, Chair
  • Krishnan Gowri, Vice Chair
  • Chris Balbach
  • Chip Barnaby
  • Carrie Brown
  • Susan Collins
  • Dru Crawley
  • Joe Huang


Thank you to our ASHRAE and IBPSA-USA SimBuild 2016: Building Performance Modeling Conference sponsors:
























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