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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 270 182

  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 226 86

Repositories

Showing 10 of 755 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 40 2 Updated Jan 11, 2026
  • scikit-sundae Public

    Python bindings to SUNDIALS differential algebraic equation solvers

    NREL/scikit-sundae’s past year of commit activity
    Python 24 BSD-3-Clause 9 1 0 Updated Jan 10, 2026
  • torc Public

    Workflow management system

    NREL/torc’s past year of commit activity
    Rust 5 BSD-3-Clause 2 4 0 Updated Jan 10, 2026
  • OpenStudio-HPXML Public

    Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.

    NREL/OpenStudio-HPXML’s past year of commit activity
    Ruby 59 27 125 (1 issue needs help) 19 Updated Jan 10, 2026
  • OpenStudio-ERI Public

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

    NREL/OpenStudio-ERI’s past year of commit activity
    Ruby 24 19 6 3 Updated Jan 10, 2026
  • 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++ 1,381 460 898 29 Updated Jan 10, 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 10, 2026
  • pCrunch Public
    NREL/pCrunch’s past year of commit activity
    Python 9 Apache-2.0 19 0 0 Updated Jan 10, 2026
  • developer.nrel.gov Public

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

    NREL/developer.nrel.gov’s past year of commit activity
    HTML 55 56 18 3 Updated Jan 10, 2026
  • InSPIRE Public

    Tutorials, scripts and other modeling aspects of agrivoltaics developed by the InSPIRE team

    NREL/InSPIRE’s past year of commit activity
    HTML 14 8 0 0 Updated Jan 10, 2026
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