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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 342

  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++ 1.2k 433

  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++ 536 212

  4. SAM SAM Public

    System Advisor Model (SAM)

    C++ 379 186

  5. floris floris Public

    A controls-oriented engineering wake model.

    Python 239 172

  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 200 77

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  • openstudio-standards Public
    NREL/openstudio-standards’s past year of commit activity
    Ruby 90 65 55 10 Updated Apr 29, 2025
  • R2X Public

    Model translation framework

    NREL/R2X’s past year of commit activity
    Python 11 BSD-3-Clause 17 17 4 Updated Apr 29, 2025
  • hercules Public

    Hercules

    NREL/hercules’s past year of commit activity
    Jupyter Notebook 5 BSD-3-Clause 15 27 2 Updated Apr 29, 2025
  • H2Integrate Public
    NREL/H2Integrate’s past year of commit activity
    Python 8 18 50 3 Updated Apr 29, 2025
  • marbles Public

    Lattice Boltzmann method solver using adaptive mesh refinement

    NREL/marbles’s past year of commit activity
    Jupyter Notebook 5 Apache-2.0 11 0 0 Updated Apr 29, 2025
  • dw-tap-api Public
    NREL/dw-tap-api’s past year of commit activity
    HTML 3 BSD-3-Clause 8 31 1 Updated Apr 29, 2025
  • raddit Public
    NREL/raddit’s past year of commit activity
    Jupyter Notebook 0 BSD-3-Clause 0 0 0 Updated Apr 29, 2025
  • developer.nrel.gov Public

    An issue tracker for NREL's APIs available at https://developer.nrel.gov

    NREL/developer.nrel.gov’s past year of commit activity
    HTML 49 51 16 6 Updated Apr 29, 2025
  • multiscale-biomass-pyrolysis Public
    NREL/multiscale-biomass-pyrolysis’s past year of commit activity
    C++ 4 BSD-3-Clause 9 0 0 Updated Apr 29, 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 121 78 69 (1 issue needs help) 15 Updated Apr 29, 2025
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