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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++ 1.3k 441

  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++ 546 216

  4. SAM SAM Public

    System Advisor Model (SAM)

    C++ 394 189

  5. floris floris Public

    A controls-oriented engineering wake model.

    Python 244 172

  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 205 80

Repositories

Showing 10 of 705 repositories
  • resource_monitor Public

    Collect CPU, memory, network, and disk statistics for systems and processes.

    Python 2 BSD-3-Clause 0 0 0 Updated Jul 12, 2025
  • developer.nrel.gov Public

    An issue tracker for NREL's APIs available at https://developer.nrel.gov

    HTML 50 53 17 3 Updated Jul 12, 2025
  • PVDegradationTools Public

    Set of tools to calculate degradation responses and degradation related parameters for PV.

    Jupyter Notebook 35 19 41 (2 issues need help) 6 Updated Jul 12, 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.

    Python 67 BSD-3-Clause 162 24 9 Updated Jul 12, 2025
  • Python 1 BSD-3-Clause 6 0 0 Updated Jul 12, 2025
  • gaps Public

    Geospatial Analysis Pipelines (GAPs) is a framework designed to scale single-location geospatial models to a High-Performance Computing (HPC) environment.

    Python 1 BSD-3-Clause 8 6 0 Updated Jul 12, 2025
  • reV Public

    Renewable Energy Potential (reV) Model

    Python 122 BSD-3-Clause 56 22 (2 issues need help) 0 Updated Jul 12, 2025
  • rex Public

    REsource eXtraction Tool (rex)

    Python 29 BSD-3-Clause 23 7 (1 issue needs help) 0 Updated Jul 11, 2025
  • fastsim Public
    Rust 29 13 4 8 Updated Jul 11, 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++ 546 216 202 9 Updated Jul 11, 2025