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    678 repositories

    • GEOPHIRES-X

      Public
      GEOPHIRES is NREL's free and open-source geothermal techno-economic simulator.
      Python
      •
      MIT License
      •32•36•66•1•Updated Apr 6, 2025Apr 6, 2025

    • OpenStudio-measure-tester-gem

      Public
      HTML
      •
      Other
      •7•3•16•2•Updated Apr 6, 2025Apr 6, 2025

    • plexosdb

      Public
      Database Manager for use with PLEXOS XML files
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •9•9•2•0•Updated Apr 5, 2025Apr 5, 2025

    • InSPIRE

      Public
      Tutorials, scripts and other modeling aspects of agrivoltaics developed by the InSPIRE team
      HTML
      •
      Other
      •7•14•0•0•Updated Apr 5, 2025Apr 5, 2025

    • reVX

      Public
      The Renewable Energy Potential(V) eXchange Tool: reVX
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •17•25•19•2•Updated Apr 5, 2025Apr 5, 2025

    • nsrdb

      Public
      NSRDB data processing pipeline. Includes satellite data assimilation, cloud property prediction and gap-filling, radiative transport modeling, and data collection.
      machine-learningsolar-energynrel
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •16•9•1•1•Updated Apr 5, 2025Apr 5, 2025

    • reV

      Public
      Renewable Energy Potential (reV) Model
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •53•118•39•1•Updated Apr 5, 2025Apr 5, 2025

    • rex

      Public
      REsource eXtraction Tool (rex)
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •22•29•8•0•Updated Apr 5, 2025Apr 5, 2025

    • COMPASS

      Public
      INFRA-COMPASS is a tool that leverages Large Language Models (LLMs) to create and maintain an inventory of state and local codes and ordinances applicable to energy infrastructure.
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •0•4•24•0•Updated Apr 5, 2025Apr 5, 2025

    • 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++
      •
      Other
      •428•1.2k•901•42•Updated Apr 5, 2025Apr 5, 2025

    • BuildingMOTIF

      Public
      Building Metadata OnTology Interoperability Framework (BuildingMOTIF). For models, see https://models.open223.info/
      Jupyter Notebook
      •
      Other
      •13•52•56•10•Updated Apr 5, 2025Apr 5, 2025

    • R2X

      Public
      Model translation framework
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •17•11•16•4•Updated Apr 5, 2025Apr 5, 2025

    • resstock

      Public
      Highly granular modeling of residential building stocks at national, regional, and local scales using OpenStudio/EnergyPlus.
      Ruby
      •
      Other
      •78•120•69•16•Updated Apr 5, 2025Apr 5, 2025

    • gaps

      Public
      Geospatial Analysis Pipelines (GAPs) is a framework designed to scale single-location geospatial models to a High-Performance Computing (HPC) environment.
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •8•2•8•0•Updated Apr 5, 2025Apr 5, 2025

    • OpenStudio-HPXML

      Public
      Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.
      Ruby
      •
      Other
      •24•52•114•23•Updated Apr 5, 2025Apr 5, 2025

    • ComStock

      Public
      National scale modeling of the U.S. commercial building stock supported by U.S. DOE, LADWP, and others and maintained by NREL
      Ruby
      •
      Other
      •26•38•46•17•Updated Apr 5, 2025Apr 5, 2025

    • PVDegradationTools

      Public
      Set of tools to calculate degradation responses and degradation related parameters for PV.
      pythonreliabilitydegradationphotovoltaic-systemspv-modulesduramat
      Jupyter Notebook
      •
      Other
      •18•35•31•6•Updated Apr 5, 2025Apr 5, 2025

    • SAM

      Public
      System Advisor Model (SAM)
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •186•369•65•4•Updated Apr 4, 2025Apr 4, 2025

    • wex

      Public
      WEX, which is short for WxWidgets Extensions, is a cross-platform library of graphical user interface tools that extends the popular open-source project WxWidgets. WEX includes many features including the powerful DView program (https://github.com/NREL/wex/wiki/DView), which provides an easy-to-use way to visualize complex time series data.
      C
      •
      BSD 3-Clause "New" or "Revised" License
      •33•60•28•0•Updated Apr 4, 2025Apr 4, 2025

    • ssc

      Public
      SAM Simulation Core (SSC) contains the underlying performance and financial models for SAM
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •105•82•29•4•Updated Apr 4, 2025Apr 4, 2025

    • fastsim

      Public
      Python
      •
      Apache License 2.0
      •14•26•3•12•Updated Apr 4, 2025Apr 4, 2025

    • openstudio-ee-gem

      Public
      Ruby
      •
      Other
      •7•2•5•3•Updated Apr 4, 2025Apr 4, 2025

    • scikit-sundae

      Public
      Python bindings to SUNDIALS differential algebraic equation solvers
      pythonodeidadaesundialscvodenumerical-integrationivp
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •7•3•0•0•Updated Apr 4, 2025Apr 4, 2025

    • openstudio-standards

      Public
      Ruby
      •
      Other
      •65•89•54•8•Updated Apr 4, 2025Apr 4, 2025

    • REopt.jl

      Public
      Julia
      •
      Apache License 2.0
      •33•27•83•35•Updated Apr 4, 2025Apr 4, 2025

    • nrel_bootstrap

      Public
      NREL.gov APP branded theme for Bootstrap 3 - based on nrel-app-template - https://github.com/NREL/nrel-app-template
      Twig
      •6•0•0•0•Updated Apr 4, 2025Apr 4, 2025

    • HVACResourceMap

      Public
      HTML
      •10•2•0•1•Updated Apr 4, 2025Apr 4, 2025

    • GeoGridFusion

      Public
      GeoGridFusion facilitates the usage and storage of gridded geospatial satellite data by users outside of NREL, particularly those without access to HPC resources. This tool builds on work done by the PVDegradationTools project for DuraMAT, with the goal of making our advancements from this project widely accessible.
      Python
      •
      Other
      •0•0•0•0•Updated Apr 4, 2025Apr 4, 2025

    • thevenin

      Public
      Equivalent circuit models in Python
      batterymodelecmcircuitelectrical
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •8•2•0•0•Updated Apr 4, 2025Apr 4, 2025

    • NRWAL

      Public
      The National Renewable Energy Laboratory Wind Analysis Libray (NRWAL)
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •12•19•0•0•Updated Apr 4, 2025Apr 4, 2025