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    754 repositories

    • 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
      •461•1.4k•902•26•Updated Jan 24, 2026Jan 24, 2026

    • scikit-sundae

      Public
      Python bindings to SUNDIALS differential algebraic equation solvers
      pythonodeidaimplicitdaesundialscvodenumerical-integrationivp
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •9•25•1•0•Updated Jan 24, 2026Jan 24, 2026

    • chronify

      Public
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •7•5•22•5•Updated Jan 24, 2026Jan 24, 2026

    • windwatts

      Public
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •9•3•27•5•Updated Jan 24, 2026Jan 24, 2026

    • H2Integrate

      Public
      PowerBuilder
      •
      BSD 3-Clause "New" or "Revised" License
      •27•18•100•12•Updated Jan 24, 2026Jan 24, 2026

    • openstudio-standards

      Public
      Ruby
      •
      Other
      •66•101•58•9•Updated Jan 23, 2026Jan 23, 2026

    • OCHRE

      Public
      A Python-based building energy modeling (BEM) tool designed to model flexible loads in residential buildings
      buildingsresidentialload-shiftingdistributed-energy-resourcesresidential-controls
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •32•70•88•7•Updated Jan 23, 2026Jan 23, 2026

    • SolTrace

      Public
      SolTrace
      C++
      •
      Other
      •44•51•34•4•Updated Jan 23, 2026Jan 23, 2026

    • ampworks

      Public
      Battery data analysis tools in Python
      experimentdatabatteryanalysishppcicaocvlithium-iongittdqdv
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •2•11•0•0•Updated Jan 23, 2026Jan 23, 2026

    • bambam

      Public
      Rust
      •
      BSD 3-Clause "New" or "Revised" License
      •2•1•16•4•Updated Jan 23, 2026Jan 23, 2026

    • openstudio-extension-gem

      Public
      Ruby
      •
      Other
      •14•6•39•3•Updated Jan 23, 2026Jan 23, 2026

    • r2x-reeds

      Public
      Reeds parser and models
      reedsr2x-core
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •2•2•3•1•Updated Jan 23, 2026Jan 23, 2026

    • 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
      •28•47•61•7•Updated Jan 23, 2026Jan 23, 2026

    • multiscale-biomass-pyrolysis

      Public
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •10•6•1•0•Updated Jan 23, 2026Jan 23, 2026

    • ROSCO

      Public
      A Reference Open Source Controller for Wind Turbines
      Python
      •
      Apache License 2.0
      •118•156•6•1•Updated Jan 23, 2026Jan 23, 2026

    • revruns

      Public
      Utilities for setting up and monitoring NREL's Renewable Energy Potential Model (reV) runs.
      Euphoria
      •7•1•0•0•Updated Jan 23, 2026Jan 23, 2026

    • OpenStudio-HPXML

      Public
      Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.
      Ruby
      •
      Other
      •27•60•123•21•Updated Jan 23, 2026Jan 23, 2026

    • FIEXTA

      Public
      Python
      •
      GNU Affero General Public License v3.0
      •2•2•0•0•Updated Jan 23, 2026Jan 23, 2026

    • floris

      Public
      A controls-oriented engineering wake model.
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •182•270•37•17•Updated Jan 23, 2026Jan 23, 2026

    • SOWFA-6

      Public
      45•43•17•1•Updated Jan 23, 2026Jan 23, 2026

    • dgen

      Public
      The Distributed Generation Market Demand (dGen) model simulates customer adoption of distributed energy resources (DERs) for residential, commercial, and industrial entities in the United States and other countries.
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •168•72•22•6•Updated Jan 23, 2026Jan 23, 2026

    • ALchemist

      Public
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •2•2•0•0•Updated Jan 22, 2026Jan 22, 2026

    • REopt.jl

      Public
      Julia
      •
      Apache License 2.0
      •47•38•91•39•Updated Jan 22, 2026Jan 22, 2026

    • ComStock.github.io

      Public
      Jupyter Notebook
      •
      MIT License
      •10•1•0•1•Updated Jan 22, 2026Jan 22, 2026

    • r2x-cli

      Public
      R2X framework repo
      Rust
      •
      BSD 3-Clause "New" or "Revised" License
      •1•3•5•10•Updated Jan 22, 2026Jan 22, 2026

    • routee-compass

      Public
      An energy-aware vehicle routing engine
      routingnetworksroute-planningroad-networkseco-routing
      Rust
      •
      BSD 3-Clause "New" or "Revised" License
      •16•26•66•6•Updated Jan 22, 2026Jan 22, 2026

    • ResStock.github.io

      Public
      SCSS
      •
      MIT License
      •7•0•1•0•Updated Jan 22, 2026Jan 22, 2026

    • openstudio-ee-gem

      Public
      Ruby
      •
      Other
      •10•2•8•5•Updated Jan 22, 2026Jan 22, 2026

    • ABSiCE

      Public
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •10•11•3•3•Updated Jan 22, 2026Jan 22, 2026

    • disco

      Public
      DISCO
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •15•12•17•6•Updated Jan 22, 2026Jan 22, 2026