Developed at the National Renewable Energy Laboratory (NREL), OpenStudio is the foundation for a number of end-user tools that help architects, building engineers and building energy modelers produce building simulations with more consistent results. It is a cross-platform (Windows, Mac, and Linux) collection of software tools to support whole building energy modeling using EnergyPlus and advanced daylight analysis using Radiance. OpenStudio is a free, open source project to facilitate community development, extension, and private sector adoption. OpenStudio includes graphical interfaces along with a Software Development Kit (SDK).
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