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    716 repositories

    • dw-tap-api

      Public
      HTML
      •
      BSD 3-Clause "New" or "Revised" License
      •7•3•39•0•Updated Aug 17, 2025Aug 17, 2025

    • PVDegradationTools

      Public
      Set of tools to calculate degradation responses and degradation related parameters for PV.
      pythonreliabilitydegradationphotovoltaic-systemspv-modulesduramat
      Jupyter Notebook
      •
      Other
      •20•37•41•5•Updated Aug 17, 2025Aug 17, 2025

    • openstudio-standards

      Public
      Ruby
      •
      Other
      •68•94•60•7•Updated Aug 17, 2025Aug 17, 2025

    • ssc

      Public
      SAM Simulation Core (SSC) contains the underlying performance and financial models for SAM
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •108•88•30•3•Updated Aug 17, 2025Aug 17, 2025

    • altrios

      Public
      Rust
      •
      Other
      •10•23•9•10•Updated Aug 16, 2025Aug 16, 2025

    • buildstockbatch

      Public
      Python
      •
      Other
      •21•25•49•14•Updated Aug 16, 2025Aug 16, 2025

    • pt-melt

      Public
      PT-MELT (PyTorch Machine Learning Toolbox) is a collection of architectures, processing, and utilities that are transferable over a range of ML applications.
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •8•2•0•0•Updated Aug 16, 2025Aug 16, 2025

    • resstock

      Public
      Highly granular modeling of residential building stocks at national, regional, and local scales using OpenStudio/EnergyPlus.
      Ruby
      •
      Other
      •79•127•73•26•Updated Aug 16, 2025Aug 16, 2025

    • WAVES

      Public
      Offshore Wind Farm Lifecycle Estimation
      pythonsimulationwind-energydiscrete-event-simulationlcoewind-energy-analyticsoffshore-wind
      Python
      •
      Apache License 2.0
      •9•12•1•1•Updated Aug 15, 2025Aug 15, 2025

    • SAM

      Public
      System Advisor Model (SAM)
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •190•404•70•3•Updated Aug 15, 2025Aug 15, 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
      •445•1.3k•911•57•Updated Aug 15, 2025Aug 15, 2025

    • fastsim

      Public
      Rust
      •
      Other
      •13•30•4•8•Updated Aug 15, 2025Aug 15, 2025

    • vidyut3d

      Public
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •8•6•0•0•Updated Aug 15, 2025Aug 15, 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•42•53•12•Updated Aug 15, 2025Aug 15, 2025

    • OpenStudio-ERI

      Public
      Energy Rating Index (ERI) calculation via OpenStudio/EnergyPlus.
      Ruby
      •
      Other
      •18•23•6•2•Updated Aug 15, 2025Aug 15, 2025

    • REopt.jl

      Public
      Julia
      •
      Apache License 2.0
      •37•33•83•29•Updated Aug 15, 2025Aug 15, 2025

    • ReEDS-2.0

      Public
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •69•155•3•1•Updated Aug 15, 2025Aug 15, 2025

    • OpenStudio-HPXML

      Public
      Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.
      Ruby
      •
      Other
      •26•53•119•19•Updated Aug 15, 2025Aug 15, 2025

    • REopt_API

      Public
      The model for the REopt API, which is used as the back-end for the REopt Webtool (reopt.nrel.gov/tool), and can be accessed directly via the NREL Developer Network (https://developer.nrel.gov/docs/energy-optimization/reopt)
      nrelrenewable-energyreopt-lite-apireopt-apireoptjloptimization
      Python
      •
      Other
      •58•107•43•4•Updated Aug 15, 2025Aug 15, 2025

    • sup3r

      Public
      The Super-Resolution for Renewable Resource Data (sup3r) software uses generative adversarial networks to create synthetic high-resolution wind and solar spatiotemporal data from coarse low-resolution inputs.
      machine-learningdeep-learningtensorflowgenerative-adversarial-networkclimate-dataclimate-changesolar-energyrenewable-energysevere-weatherwind-energy
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •30•110•3•0•Updated Aug 15, 2025Aug 15, 2025

    • BuildingMOTIF

      Public
      Building Metadata OnTology Interoperability Framework (BuildingMOTIF). For models, see https://models.open223.info/
      Jupyter Notebook
      •
      Other
      •16•56•59•10•Updated Aug 15, 2025Aug 15, 2025

    • ThermalNetwork

      Public
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •8•4•1•1•Updated Aug 15, 2025Aug 15, 2025

    • tyche

      Public
      Jupyter Notebook
      •
      MIT License
      •8•5•9•1•Updated Aug 15, 2025Aug 15, 2025

    • PRAS

      Public
      NREL's Probabilistic Resource Adequacy Suite (PRAS)
      Julia
      •24•63•23•2•Updated Aug 15, 2025Aug 15, 2025

    • SolTrace

      Public
      SolTrace
      C++
      •
      Other
      •39•50•22•3•Updated Aug 15, 2025Aug 15, 2025

    • marbles

      Public
      Lattice Boltzmann method solver using adaptive mesh refinement
      adaptive-mesh-refinementamrexlattice-boltzmann-method
      Jupyter Notebook
      •
      Apache License 2.0
      •12•9•1•2•Updated Aug 15, 2025Aug 15, 2025

    • H2Integrate

      Public
      PowerBuilder
      •
      Other
      •21•12•84•8•Updated Aug 15, 2025Aug 15, 2025

    • raddit

      Public
      Jupyter Notebook
      •
      BSD 3-Clause "New" or "Revised" License
      •0•0•0•0•Updated Aug 15, 2025Aug 15, 2025

    • plexosdb

      Public
      Database Manager for use with PLEXOS XML files
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •13•17•4•1•Updated Aug 14, 2025Aug 14, 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•1•0•0•Updated Aug 14, 2025Aug 14, 2025