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National Renewable Energy Laboratory

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  1. api-umbrella api-umbrella Public

    Open source API management platform

    Ruby 2.1k 355

  2. EnergyPlus EnergyPlus Public

    EnergyPlus™ is a whole building energy simulation program that engineers, architects, and researchers use to model both energy consumption and water use in buildings.

    C++ 1.3k 456

  3. OpenStudio OpenStudio Public

    OpenStudio is a cross-platform collection of software tools to support whole building energy modeling using EnergyPlus and advanced daylight analysis using Radiance.

    C++ 564 219

  4. SAM SAM Public

    System Advisor Model (SAM)

    C++ 412 200

  5. floris floris Public

    A controls-oriented engineering wake model.

    Python 265 180

  6. OpenOA OpenOA Public

    This library provides a framework for assessing wind plant performance using operational assessment (OA) methodologies that consume time series data from wind plants. The goal of the project is to …

    Jupyter Notebook 220 85

Repositories

Showing 10 of 745 repositories
  • EnergyPlus Public

    EnergyPlus™ is a whole building energy simulation program that engineers, architects, and researchers use to model both energy consumption and water use in buildings.

    NREL/EnergyPlus’s past year of commit activity
    C++ 1,349 456 895 31 Updated Nov 23, 2025
  • OpenStudio Public

    OpenStudio is a cross-platform collection of software tools to support whole building energy modeling using EnergyPlus and advanced daylight analysis using Radiance.

    NREL/OpenStudio’s past year of commit activity
    C++ 564 219 216 12 Updated Nov 23, 2025
  • torc Public

    Workflow management system

    NREL/torc’s past year of commit activity
    Rust 3 BSD-3-Clause 1 2 1 Updated Nov 23, 2025
  • WAVES Public

    Offshore Wind Farm Lifecycle Estimation

    NREL/WAVES’s past year of commit activity
    Python 13 Apache-2.0 10 1 0 Updated Nov 22, 2025
  • NREL/openstudio-standards’s past year of commit activity
    Ruby 100 68 62 4 Updated Nov 22, 2025
  • api-umbrella Public

    Open source API management platform

    NREL/api-umbrella’s past year of commit activity
    Ruby 2,123 MIT 355 229 9 Updated Nov 22, 2025
  • InSPIRE Public

    Tutorials, scripts and other modeling aspects of agrivoltaics developed by the InSPIRE team

    NREL/InSPIRE’s past year of commit activity
    HTML 14 7 0 0 Updated Nov 22, 2025
  • resstock Public

    Highly granular modeling of residential building stocks at national, regional, and local scales using OpenStudio/EnergyPlus.

    NREL/resstock’s past year of commit activity
    Ruby 137 79 70 (2 issues need help) 24 Updated Nov 22, 2025
  • ESIFHPC4 Public

    Benchmarks repository for NREL's ESIF-HPC-4 project

    NREL/ESIFHPC4’s past year of commit activity
    Shell 1 6 0 4 Updated Nov 22, 2025
  • BioReactorDesign Public

    Bio Reactor Design (BiRD): a toolbox to simulate and analyze different designs of bioreactors in OpenFOAM

    NREL/BioReactorDesign’s past year of commit activity
    Liquid 32 BSD-3-Clause 13 6 (1 issue needs help) 5 Updated Nov 21, 2025