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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 345

  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 440

  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++ 547 216

  4. SAM SAM Public

    System Advisor Model (SAM)

    C++ 396 188

  5. floris floris Public

    A controls-oriented engineering wake model.

    Python 247 174

  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 205 80

Repositories

Showing 10 of 711 repositories
  • 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 127 78 75 (1 issue needs help) 24 Updated Jul 19, 2025
  • 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++ 1,277 440 907 49 Updated Jul 18, 2025
  • m2p Public
    NREL/m2p’s past year of commit activity
    Python 31 BSD-3-Clause 19 0 0 Updated Jul 18, 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 24 BSD-3-Clause 13 7 (1 issue needs help) 4 Updated Jul 18, 2025
  • OpenStudio-HPXML Public

    Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.

    NREL/OpenStudio-HPXML’s past year of commit activity
    Ruby 53 26 118 (1 issue needs help) 20 Updated Jul 18, 2025
  • engage Public

    NREL Engage Project

    NREL/engage’s past year of commit activity
    JavaScript 4 BSD-3-Clause 12 1 7 Updated Jul 18, 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 Jul 18, 2025
  • hercules Public

    Hercules

    NREL/hercules’s past year of commit activity
    Jupyter Notebook 6 BSD-3-Clause 17 12 2 Updated Jul 18, 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++ 547 216 203 10 Updated Jul 18, 2025
  • PVDegradationTools Public

    Set of tools to calculate degradation responses and degradation related parameters for PV.

    NREL/PVDegradationTools’s past year of commit activity
    Jupyter Notebook 36 19 38 (2 issues need help) 5 Updated Jul 18, 2025
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