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ASHRAE membership is open to any person associated with heating, ventilation, air conditioning or refrigeration. ASHRAE is unique because its membership is drawn from a wide range of disciplines relating to the HVAC&R field. Over 56,000 individuals from more than 100 nations belong to the Society.

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Membership & Conferences


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

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

Lowdown Showdown



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.