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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 326

  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 397

  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++ 513 195

  4. SAM SAM Public

    System Advisor Model (SAM)

    C++ 348 151

  5. floris floris Public

    A controls-oriented engineering wake model.

    Python 223 157

  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 196 63

Repositories

Showing 10 of 660 repositories
  • ROSCO Public

    A Reference Open Source Controller for Wind Turbines

    NREL/ROSCO’s past year of commit activity
    Python 119 Apache-2.0 97 8 (1 issue needs help) 2 Updated Jan 8, 2025
  • REopt.jl Public
    NREL/REopt.jl’s past year of commit activity
    Julia 26 Apache-2.0 21 81 34 Updated Jan 8, 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++ 1,167 397 899 57 Updated Jan 8, 2025
  • NREL/openstudio-standards’s past year of commit activity
    Ruby 85 58 57 7 Updated Jan 8, 2025
  • alfalfa Public

    Alfalfa is a web service that enables runtime interaction with building energy models (OpenStudio/EnergyPlus and FMUs compiled from Modelica or Spawn) over REST APIs.

    NREL/alfalfa’s past year of commit activity
    Python 43 13 46 16 Updated Jan 8, 2025
  • chronify Public
    NREL/chronify’s past year of commit activity
    Python 2 BSD-3-Clause 0 16 3 Updated Jan 8, 2025
  • rdtools Public

    PV Analysis Tools in Python

    NREL/rdtools’s past year of commit activity
    Python 159 MIT 67 41 5 Updated Jan 8, 2025
  • OpenStudio-HPXML Public

    Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.

    NREL/OpenStudio-HPXML’s past year of commit activity
    Ruby 46 17 107 (1 issue needs help) 21 Updated Jan 8, 2025
  • fastsim Public
    NREL/fastsim’s past year of commit activity
    Python 23 Apache-2.0 6 3 9 Updated Jan 8, 2025
  • PRAS Public

    NREL's Probabilistic Resource Adequacy Suite (PRAS)

    NREL/PRAS’s past year of commit activity
    Julia 46 11 9 2 Updated Jan 8, 2025