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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.

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  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.

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  4. SAM SAM Public

    System Advisor Model (SAM)

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  5. floris floris Public

    A controls-oriented engineering wake model.

    Python 226 159

  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 664 repositories
  • OpenStudio-HPXML Public

    Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.

    NREL/OpenStudio-HPXML’s past year of commit activity
    Ruby 48 17 110 (1 issue needs help) 21 Updated Feb 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 118 59 64 (1 issue needs help) 24 Updated Feb 4, 2025
  • OCHRE Public

    A Python-based building energy modeling (BEM) tool designed to model flexible loads in residential buildings

    NREL/OCHRE’s past year of commit activity
    Python 49 BSD-3-Clause 12 82 (1 issue needs help) 5 Updated Feb 4, 2025
  • openstudio-standards Public
    NREL/openstudio-standards’s past year of commit activity
    Ruby 88 59 57 6 Updated Feb 4, 2025
  • GreenHEART Public
    NREL/GreenHEART’s past year of commit activity
    Python 3 10 34 2 Updated Feb 4, 2025
  • altrios Public
    NREL/altrios’s past year of commit activity
    Rust 19 5 4 8 Updated Feb 4, 2025
  • OpenStudio-ERI Public

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

    NREL/OpenStudio-ERI’s past year of commit activity
    Ruby 20 9 6 7 Updated Feb 4, 2025
  • thevenin Public

    Equivalent circuit models in Python.

    NREL/thevenin’s past year of commit activity
    Python 1 BSD-3-Clause 2 0 0 Updated Feb 4, 2025
  • fastsim Public
    NREL/fastsim’s past year of commit activity
    Python 24 Apache-2.0 6 3 9 Updated Feb 4, 2025
  • alfalfa Public

    Alfalfa is a web service that enables runtime interaction with building energy models (OpenStudio/EnergyPlus and FMUs compiled from Modelica or Spawn) over REST APIs.

    NREL/alfalfa’s past year of commit activity
    Python 45 14 47 16 Updated Feb 4, 2025
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