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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++ 1.2k 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++ 525 208

  4. SAM SAM Public

    System Advisor Model (SAM)

    C++ 360 183

  5. floris floris Public

    A controls-oriented engineering wake model.

    Python 232 171

  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 196 74

Repositories

Showing 10 of 670 repositories
  • REopt.jl Public
    NREL/REopt.jl’s past year of commit activity
    Julia 27 Apache-2.0 32 81 34 Updated Mar 1, 2025
  • T3CO Public

    Transportation Technology Total Cost of Ownership tool

    NREL/T3CO’s past year of commit activity
    Python 11 BSD-3-Clause 7 11 0 Updated Mar 1, 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 5 5 6 2 Updated Mar 1, 2025
  • infrasys Public

    Data store for components and time series in support of Python-based modeling packages

    NREL/infrasys’s past year of commit activity
    Python 9 BSD-3-Clause 8 19 3 Updated Mar 1, 2025
  • ninterp Public

    Numerical interpolation in N-dimensions over rectilinear grids

    NREL/ninterp’s past year of commit activity
    Rust 3 BSD-3-Clause 6 0 0 Updated Mar 1, 2025
  • OpenStudio-HPXML Public

    Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.

    NREL/OpenStudio-HPXML’s past year of commit activity
    Ruby 48 23 110 (1 issue needs help) 22 Updated Mar 1, 2025
  • Panel-Segmentation Public

    This open-source package provides a framework for automatically detecting and extracting metadata from solar array installations in satellite images.

    NREL/Panel-Segmentation’s past year of commit activity
    Jupyter Notebook 24 MIT 10 4 3 Updated Feb 28, 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 95 54 44 12 Updated Feb 28, 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 119 75 66 (1 issue needs help) 23 Updated Feb 28, 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 36 25 68 13 Updated Feb 28, 2025