Openstudio 2.9.1 _verified_

OpenStudio 2.9.1 is a specific release of the OpenStudio SDK

One standout feature of OpenStudio 2.9.1 is its "Results View" post-processor. It handles (weather files) with remarkable clarity. Energy modelers have noted that this version correctly parses RunPeriod outputs without the occasional meter-aggregation bugs found in version 2.8.x. openstudio 2.9.1

OpenStudio 2.9.1 is a widely-used, open-source software tool for building energy modeling and analysis. Developed by the National Renewable Energy Laboratory (NREL), OpenStudio provides architects, engineers, and building owners with a comprehensive platform to simulate and optimize building energy performance. With its user-friendly interface and robust capabilities, OpenStudio has become a popular choice among building professionals seeking to reduce energy consumption and improve building sustainability. OpenStudio 2

facility. Using Ruby (and later Python), modelers can write scripts to automate repetitive tasks: Automation facility

| | Action | Rationale | |---------------|------------|----------------| | Using OpenStudio 2.8.x or earlier | Upgrade recommended | Gains EnergyPlus 9.3 features (e.g., improved heat pump modeling, district cooling templates). | | Using OpenStudio 2.9.0 | Upgrade highly recommended | Resolves several critical stability and scripting bugs. | | Using OpenStudio 2.9.1 without issues | No immediate need | Stable; upgrade only if new features in 2.9.2+ (future release) are needed. |

The release of OpenStudio 2.9.1 brought several refinements to the ecosystem. One of the most critical aspects of any OpenStudio version is its compatibility with the underlying EnergyPlus engine. Version 2.9.1 is paired with EnergyPlus 9.2.0. This alignment ensures that users have access to the physics-based calculations and thermal zones management introduced in that specific engine update.