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National Renewable Energy Laboratory

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  1. api-umbrella api-umbrella Public

    Open source API management platform

    Ruby 2k 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++ 529 210

  4. SAM SAM Public

    System Advisor Model (SAM)

    C++ 364 185

  5. floris floris Public

    A controls-oriented engineering wake model.

    Python 235 172

  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 671 repositories
  • OpenStudio-HPXML Public

    Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.

    NREL/OpenStudio-HPXML’s past year of commit activity
    Ruby 49 24 112 (1 issue needs help) 22 Updated Mar 13, 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 120 77 66 (1 issue needs help) 25 Updated Mar 13, 2025
  • GreenHEART Public
    NREL/GreenHEART’s past year of commit activity
    Python 5 17 41 2 Updated Mar 13, 2025
  • R2X Public

    Model translation framework

    NREL/R2X’s past year of commit activity
    Python 11 BSD-3-Clause 17 16 3 Updated Mar 13, 2025
  • REopt.jl Public
    NREL/REopt.jl’s past year of commit activity
    Julia 27 Apache-2.0 33 82 34 Updated Mar 13, 2025
  • dgen Public

    The Distributed Generation Market Demand (dGen) model simulates customer adoption of distributed energy resources (DERs) for residential, commercial, and industrial entities in the United States and other countries.

    NREL/dgen’s past year of commit activity
    Python 64 BSD-3-Clause 153 18 8 Updated Mar 13, 2025
  • NREL/openstudio-standards’s past year of commit activity
    Ruby 89 65 55 9 Updated Mar 13, 2025
  • dw-tap-api Public
    NREL/dw-tap-api’s past year of commit activity
    HTML 2 BSD-3-Clause 8 28 1 Updated Mar 13, 2025
  • turbine-models Public

    Documentation for the turbine models in this repository is available below.

    NREL/turbine-models’s past year of commit activity
    Python 61 BSD-3-Clause 40 13 0 Updated Mar 12, 2025
  • thevenin Public

    Equivalent circuit models in Python

    NREL/thevenin’s past year of commit activity
    Python 1 BSD-3-Clause 8 0 0 Updated Mar 12, 2025