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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 365

  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)

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  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 …

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Repositories

Showing 10 of 755 repositories
  • osos Public

    Open Source Ops and Statistics (OSOS)

    NREL/osos’s past year of commit activity
    Python 9 BSD-3-Clause 9 0 0 Updated Jan 12, 2026
  • torc Public

    Workflow management system

    NREL/torc’s past year of commit activity
    Rust 5 BSD-3-Clause 2 4 1 Updated Jan 12, 2026
  • pyvisco Public

    Pyvisco is a Python library that supports the identification of Prony series parameters for Generalized Maxwell models describing linear viscoelastic materials.

    NREL/pyvisco’s past year of commit activity
    Jupyter Notebook 17 11 1 0 Updated Jan 12, 2026
  • r2x-plexos Public

    Repo for plugin of PLEXOS

    NREL/r2x-plexos’s past year of commit activity
    Python 2 BSD-3-Clause 1 0 5 Updated Jan 12, 2026
  • r2x-reeds Public

    Reeds parser and models

    NREL/r2x-reeds’s past year of commit activity
    Python 2 BSD-3-Clause 2 3 6 Updated Jan 12, 2026
  • r2x-core Public

    R2X framework core package

    NREL/r2x-core’s past year of commit activity
    Python 4 BSD-3-Clause 1 0 2 Updated Jan 12, 2026
  • ReEDS-2.0 Public
    NREL/ReEDS-2.0’s past year of commit activity
    Python 167 BSD-3-Clause 77 6 0 Updated Jan 11, 2026
  • OpenStudio-HPXML Public

    Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.

    NREL/OpenStudio-HPXML’s past year of commit activity
    Ruby 60 27 125 (1 issue needs help) 19 Updated Jan 11, 2026
  • 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
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