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@NREL

National Renewable Energy Laboratory

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  1. api-umbrella api-umbrella Public

    Open source API management platform

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  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 434

  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++ 537 212

  4. SAM SAM Public

    System Advisor Model (SAM)

    C++ 381 187

  5. floris floris Public

    A controls-oriented engineering wake model.

    Python 241 171

  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 201 78

Repositories

Showing 10 of 687 repositories
  • ComStock Public

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

    Ruby 40 26 45 9 Updated May 6, 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.

    C++ 537 212 198 6 Updated May 6, 2025
  • BioReactorDesign Public

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

    Liquid 22 BSD-3-Clause 12 9 (1 issue needs help) 4 Updated May 6, 2025
  • OpenStudio-HPXML Public

    Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.

    Ruby 52 24 117 (1 issue needs help) 25 Updated May 6, 2025
  • reV Public

    Renewable Energy Potential (reV) Model

    Python 120 BSD-3-Clause 55 33 (4 issues need help) 1 Updated May 6, 2025
  • marbles Public

    Lattice Boltzmann method solver using adaptive mesh refinement

    Jupyter Notebook 6 Apache-2.0 11 0 0 Updated May 6, 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.

    TypeScript 1 9 92 2 Updated May 6, 2025
  • dw-tap-api Public
    HTML 3 BSD-3-Clause 8 31 2 Updated May 6, 2025
  • resstock Public

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

    Ruby 123 78 71 (1 issue needs help) 16 Updated May 5, 2025
  • ASSET Public

    ASSET is a free and open-source tool built with Python and PSS®E, designed to automatically assess and analyze grid strength across large-scale power systems. It supports multiple system operating conditions and contingencies, and outputs results in a tabular format for easy interpretation.

    Python 11 BSD-3-Clause 3 0 0 Updated May 5, 2025