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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 335

  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 233 171

  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
  • ssc Public

    SAM Simulation Core (SSC) contains the underlying performance and financial models for SAM

    NREL/ssc’s past year of commit activity
    C++ 81 BSD-3-Clause 104 31 5 Updated Mar 4, 2025
  • OpenStudio-ERI Public

    Energy Rating Index (ERI) calculation via OpenStudio/EnergyPlus.

    NREL/OpenStudio-ERI’s past year of commit activity
    Ruby 21 17 6 5 Updated Mar 4, 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) 23 Updated Mar 4, 2025
  • R2X Public

    Model translation framework

    NREL/R2X’s past year of commit activity
    Python 11 BSD-3-Clause 16 16 4 Updated Mar 4, 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 4, 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 Mar 4, 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 2 Updated Mar 4, 2025
  • floris Public

    A controls-oriented engineering wake model.

    NREL/floris’s past year of commit activity
    Python 233 BSD-3-Clause 171 69 19 Updated Mar 4, 2025
  • sup3r Public

    The Super-Resolution for Renewable Resource Data (sup3r) software uses generative adversarial networks to create synthetic high-resolution wind and solar spatiotemporal data from coarse low-resolution inputs.

    NREL/sup3r’s past year of commit activity
    Python 93 BSD-3-Clause 27 2 1 Updated Mar 3, 2025
  • REopt.jl Public
    NREL/REopt.jl’s past year of commit activity
    Julia 27 Apache-2.0 32 81 34 Updated Mar 4, 2025
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