
What Is HackSimBuild?
HackSimBuild ’26
is a 24-hour hackathon where participants (you) develop and test creative new approaches to building performance simulation. This event will bring together modelers, programmers, students, academics, designers, and engineers of all types to collaborate in a design sprint. At the end of this fun and immersive event, we will award prizes to the teams with the most original, innovative, and market-ready tools, metrics, ideas, or other hacks they present to our industry-leading panel of jurors.
Why Should I Attend?
HackSimBuild invites you to network and form teams to address challenges like these:
- Create a new metric we should use in building design including why it is important and how to calculate it
- Demonstrate a building science concept to someone without an architecture, engineering, or construction background
- Diagnose a cause of the performance gap between a building energy model and a real building
- Make quality of life improvement in the practice of building performance simulation.
- Ease the process of model creation or input/output documentation
- Create a method to check a model for known issues or errors
- Connect two pieces of software together
- Develop a method for modeling a technology, occupant behavior, or fault/issue that is difficult to model in existing software
- … or choose your own adventure
The challenges are open-ended, spanning the intersection of buildings and simulation. Solutions can involve any combination of hardware, software, graphics, or processes.

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