BuildSim
Cloud-based building energy modeling and performance simulation
Web-based collaborative platform for building energy modeling that combines EnergyPlus simulation engine with Git-based version control, 3D visualization, and team collaboration. Reduces energy modeling time by up to 70% through cloud-based automation and model management.
Why This Tool Exists
Energy modeling teams spend weeks manually creating and refining energy models in desktop tools, managing multiple versions, and collaborating asynchronously through email. Version control, change tracking, and quality assurance of models are manual and error-prone. Design teams cannot rapidly iterate through energy scenarios or compare design alternatives during early design phases.
Cloud-based platform automates building energy model creation and management with Git-based version control, change tracking, and collaborative features. Integrates Revit/gbXML geometry with EnergyPlus simulation engine for one-click cloud simulation. Teams can iterate rapidly through design alternatives, compare results across versions, and track model quality with diagnostic feedback.
How You Use It
Data Transparency
Exactly what this tool uses and how
Python API available; REST API endpoint not publicly documentedUse Cases
- ·Early-stage design alternative analysis and energy performance comparison
- ·HVAC system sizing and optimization across building types
- ·Net-zero and high-performance building design verification
- ·Design team collaboration on energy modeling (version control and change tracking)
- ·Rapid iteration through parametric design scenarios during schematic design
- ·Energy code compliance validation and reporting
Pricing
Sources & Research NotesResearch date: 2026-04-03
- https://www.buildsim.io/
- https://www.crunchbase.com/organization/buildsimhub
- https://builtworlds.com/companies/buildsimhub/
- https://www.energy.gov/eere/buildings/articles/buildsimhub-brings-github-building-energy-simulation
- https://www.energy.gov/eere/buildings/sbir-2018-buildsimhub-development-git-based-energy-model-management-platform
- https://github.com/weilix88/buildsimhub_python_api
- https://github.com/weilixu/gbEplus
- https://www.aecplustech.com/tools/buildsim
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