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National Laboratory of the Rockies

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  1. api-umbrella api-umbrella Public

    Open source API management platform

    Ruby 2.1k 364

  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++ 1.4k 460

  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++ 574 222

  4. SAM SAM Public

    System Advisor Model (SAM)

    C++ 421 204

  5. floris floris Public

    A controls-oriented engineering wake model.

    Python 270 181

  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 225 86

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Showing 10 of 754 repositories
  • reVRt Public

    The reV Routing tool introduces a spatially-aware, least-cost-path methodology that allows users to consider siting constraints, regional component costs, land composition costs, point-of-interconnection costs, and network upgrade costs to estimate the transmission infrastructure requirements for new electrical grid connections.

    NREL/reVRt’s past year of commit activity
    Python 2 BSD-3-Clause 1 41 2 Updated Jan 8, 2026
  • OpenStudio-HPXML Public

    Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.

    NREL/OpenStudio-HPXML’s past year of commit activity
    Ruby 59 27 124 (1 issue needs help) 18 Updated Jan 8, 2026
  • 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.

    NREL/OpenStudio’s past year of commit activity
    C++ 574 222 226 10 Updated Jan 8, 2026
  • REopt.jl Public
    NREL/REopt.jl’s past year of commit activity
    Julia 38 Apache-2.0 46 90 38 Updated Jan 8, 2026
  • reV-tutorial Public

    Tutorials for using the Renewable Energy Potential Model (reV)

    NREL/reV-tutorial’s past year of commit activity
    PowerBuilder 6 7 0 0 Updated Jan 8, 2026
  • routee-compass Public

    An energy-aware vehicle routing engine

    NREL/routee-compass’s past year of commit activity
    Rust 26 BSD-3-Clause 16 65 (5 issues need help) 5 Updated Jan 8, 2026
  • BioReactorDesign Public

    Bio Reactor Design (BiRD): a toolbox to simulate and analyze different designs of bioreactors in OpenFOAM

    NREL/BioReactorDesign’s past year of commit activity
    Liquid 33 BSD-3-Clause 14 6 (1 issue needs help) 4 Updated Jan 8, 2026
  • buildstockbatch Public
    NREL/buildstockbatch’s past year of commit activity
    Python 25 21 50 (3 issues need help) 14 Updated Jan 8, 2026
  • r2x-cli Public

    R2X framework repo

    NREL/r2x-cli’s past year of commit activity
    Rust 3 BSD-3-Clause 1 7 13 Updated Jan 8, 2026
  • 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 139 80 66 (1 issue needs help) 24 Updated Jan 8, 2026
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