Openstudio 2.9.1 May 2026

Released around late 2019, version 2.9.1 is a legacy but highly significant version in the building science community. It acted as the connective tissue between:

1. Integration with emerging technologies: OpenStudio is likely to integrate with emerging technologies, such as machine learning and artificial intelligence, to further enhance its energy analysis capabilities.
2. Improved user interface and user experience: Future versions of OpenStudio are expected to feature improved user interfaces and user experiences, making it easier for users to navigate and utilize the software.

Developed primarily by the National Renewable Energy Laboratory (NREL), OpenStudio is not a standalone simulation engine. Instead, it is an open-source Software Development Kit (SDK) and middleware that sits on top of EnergyPlus openstudio 2.9.1

1. Core Compatibility: EnergyPlus 9.3.0