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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 346

  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 445

  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++ 551 216

  4. SAM SAM Public

    System Advisor Model (SAM)

    C++ 406 191

  5. floris floris Public

    A controls-oriented engineering wake model.

    Python 250 176

  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 209 82

Repositories

Showing 10 of 718 repositories
  • hercules Public

    Hercules

    NREL/hercules’s past year of commit activity
    Jupyter Notebook 6 BSD-3-Clause 17 7 3 Updated Aug 26, 2025
  • reVReports Public
    NREL/reVReports’s past year of commit activity
    Python 1 BSD-3-Clause 0 2 1 Updated Aug 26, 2025
  • ComStock Public

    National scale modeling of the U.S. commercial building stock supported by U.S. DOE, LADWP, and others and maintained by NREL

    NREL/ComStock’s past year of commit activity
    Ruby 42 27 54 10 Updated Aug 26, 2025
  • routee-compass Public

    An energy-aware vehicle routing engine

    NREL/routee-compass’s past year of commit activity
    Rust 19 BSD-3-Clause 14 64 (3 issues need help) 4 Updated Aug 26, 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 128 80 74 (1 issue needs help) 25 Updated Aug 26, 2025
  • reV Public

    Renewable Energy Potential (reV) Model

    NREL/reV’s past year of commit activity
    Python 126 BSD-3-Clause 58 26 (2 issues need help) 2 Updated Aug 26, 2025
  • HPC Public

    A collection of various resources, examples, and executables for the general NREL HPC user community's benefit. Use the following website for accessing documentation.

    NREL/HPC’s past year of commit activity
    Jupyter Notebook 128 77 54 9 Updated Aug 26, 2025
  • H2Integrate Public
    NREL/H2Integrate’s past year of commit activity
    PowerBuilder 12 21 87 9 Updated Aug 26, 2025
  • NEB-Tool Public

    A user friendly, graphical, open-source application (Web/Mac/Windows) of the multiple benefits framework for non-energy benefits, incorporating additional aspects to make the tool effective for use in the United States.

    NREL/NEB-Tool’s past year of commit activity
    TypeScript 2 8 70 4 Updated Aug 26, 2025
  • REopt.jl Public
    NREL/REopt.jl’s past year of commit activity
    Julia 33 Apache-2.0 38 83 29 Updated Aug 26, 2025
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