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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 338

  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 425

  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++ 530 210

  4. SAM SAM Public

    System Advisor Model (SAM)

    C++ 366 185

  5. floris floris Public

    A controls-oriented engineering wake model.

    Python 237 172

  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 198 75

Repositories

Showing 10 of 673 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++ 1,204 425 894 33 Updated Mar 19, 2025
  • R2X Public

    Model translation framework

    NREL/R2X’s past year of commit activity
    Python 11 BSD-3-Clause 17 16 3 Updated Mar 19, 2025
  • scikit-sundae Public

    Python bindings to SUNDIALS differential algebraic equation solvers

    NREL/scikit-sundae’s past year of commit activity
    Cython 3 BSD-3-Clause 7 0 0 Updated Mar 19, 2025
  • ninterp Public

    Numerical interpolation in N-dimensions over rectilinear grids

    NREL/ninterp’s past year of commit activity
    Rust 3 BSD-3-Clause 6 1 0 Updated Mar 19, 2025
  • HOPP Public
    NREL/HOPP’s past year of commit activity
    Python 26 BSD-3-Clause 54 62 (1 issue needs help) 1 Updated Mar 19, 2025
  • NREL/openstudio-standards’s past year of commit activity
    Ruby 89 65 56 10 Updated Mar 19, 2025
  • REopt.jl Public
    NREL/REopt.jl’s past year of commit activity
    Julia 27 Apache-2.0 33 82 34 Updated Mar 19, 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 1 9 102 2 Updated Mar 19, 2025
  • altrios Public
    NREL/altrios’s past year of commit activity
    Rust 20 10 4 8 Updated Mar 19, 2025
  • routee-compass Public

    An energy-aware vehicle routing engine

    NREL/routee-compass’s past year of commit activity
    Rust 13 BSD-3-Clause 12 50 (2 issues need help) 5 Updated Mar 19, 2025