Openstudio 2.9.1 ((new)) (2026)

OpenStudio 2.9.1 is a powerful tool for building energy modeling and analysis. Its comprehensive features, capabilities, and benefits make it an indispensable resource for building professionals seeking to improve building energy efficiency, reduce costs, and promote sustainability. As the building industry continues to evolve and prioritize energy efficiency and sustainability, OpenStudio is poised to remain a leading tool for building energy modeling and analysis.

Open your terminal or command prompt and run the following command to ensure the system recognizes the runtime: openstudio --version Use code with caution. This should output 2.9.1 . Troubleshooting Common Errors Error: "EnergyPlus Not Found" or "Failed to Locate Engine" openstudio 2.9.1

Note on Modern OpenStudio: After the release of version 2.x, NREL transitioned the OpenStudio GUI into a separate open-source project managed by the OpenStudio Coalition (OSC), while NREL maintained the underlying SDK. Version 2.9.1 represents one of the final monolithic releases where NREL packaged the SDK and GUI together natively. Installation and Setup Guide OpenStudio 2

OpenStudio is a cross-platform collection of software tools and libraries designed to support whole-building energy modeling using EnergyPlus and advanced daylight analysis using Radiance. Open your terminal or command prompt and run

You can build a base image using specific build arguments to target version 2.9.1.