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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 327

  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 401

  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++ 518 197

  4. SAM SAM Public

    System Advisor Model (SAM)

    C++ 352 150

  5. floris floris Public

    A controls-oriented engineering wake model.

    Python 225 157

  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 197 63

Repositories

Showing 10 of 661 repositories
  • fastsim Public
    NREL/fastsim’s past year of commit activity
    Python 23 Apache-2.0 6 3 9 Updated Jan 24, 2025
  • Multi-Tube-OD-Reader Public

    Hardware & App for Multi-Tube OD Reader

    NREL/Multi-Tube-OD-Reader’s past year of commit activity
    Python 0 BSD-3-Clause 0 0 0 Updated Jan 24, 2025
  • foundational-industry-energy-data Public

    The Foundational Industry Energy Dataset (FIED) is a unit-level characterization of energy use in the U.S. industrial sector.

    NREL/foundational-industry-energy-data’s past year of commit activity
    Python 2 1 5 0 Updated Jan 24, 2025
  • OpenStudio-HPXML Public

    Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.

    NREL/OpenStudio-HPXML’s past year of commit activity
    Ruby 47 17 110 (1 issue needs help) 21 Updated Jan 24, 2025
  • chronify Public
    NREL/chronify’s past year of commit activity
    Python 3 BSD-3-Clause 0 19 (1 issue needs help) 1 Updated Jan 24, 2025
  • REopt_API Public

    The model for the REopt API, which is used as the back-end for the REopt Webtool (reopt.nrel.gov/tool), and can be accessed directly via the NREL Developer Network (https://developer.nrel.gov/docs/energy-optimization/reopt)

    NREL/REopt_API’s past year of commit activity
    Python 94 46 44 13 Updated Jan 24, 2025
  • ComStock Public

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

    NREL/ComStock’s past year of commit activity
    Ruby 34 10 68 14 Updated Jan 24, 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++ 1,179 401 902 49 Updated Jan 24, 2025
  • ATB-calc Public

    Python files and Jupyter notebooks for processing the Annual Technology Baseline (ATB) electricity data and determining LCOE and other metrics.

    NREL/ATB-calc’s past year of commit activity
    Python 32 BSD-3-Clause 6 3 1 Updated Jan 24, 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 60 BSD-3-Clause 139 16 5 Updated Jan 24, 2025
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