Featured Offers
Feature Your Tool
Want to get discovered by thousands of active tech buyers? Claim this premium spot today and accelerate your product growth.
Top Competitors to Consider
Want to get discovered by thousands of active tech buyers? Claim this premium spot today and accelerate your product growth.
#2 OpenStudio
Open‑source suite (GUI, SDK, and API) built around EnergyPlus that adds workflow‑friendly model creation, parametric analysis, and seamless integration with SketchUp.
Commercial UI for EnergyPlus and CFD that offers rapid 3‑D model creation, detailed HVAC system libraries, and climate‑based performance reporting.
Comprehensive building performance suite covering energy, daylight, thermal comfort, and CFD with powerful visualization and reporting tools.
#5 eQUEST
Free, user‑friendly interface to the DOE‑2 engine; provides quick whole‑building energy simulations and detailed HVAC system modeling.
#6 TRNSYS
Modular simulation environment for transient systems, ideal for HVAC, renewable energy, and detailed thermal network modeling.
#7 ESP-r
Open‑source research‑grade simulation tool covering heat flow, airflow, lighting, and moisture dynamics in buildings.
Industry‑standard software for HVAC load calculation, energy simulation, and system design with an intuitive UI.
#9 TRACE 700
Trane’s HVAC design and energy analysis tool that integrates load calculations, system selection, and annual energy consumption reporting.
#10 Sefaira
Cloud‑based early‑stage design analysis for energy, daylight, and thermal comfort, tightly integrated with SketchUp and Revit.
#11 Energy3D
Educational 3‑D building energy modeling tool that visualizes heat flow, solar gain, and HVAC performance in real time.
#12 SimScale
Web‑based simulation platform offering CFD, thermal, and building performance analysis without local hardware requirements.
#13 Autodesk Insight
Energy analysis add‑on for Revit that runs quick simulations using a simplified EnergyPlus engine and provides sustainability ratings.
Cloud‑based performance analysis service that runs EnergyPlus simulations at scale and generates LEED‑compatible reports.
Open‑source environmental analysis plugins for Grasshopper/Rhino that provide daylight, radiation, and EnergyPlus‑based energy modeling.
#16 Dymola
Commercial Modelica environment with the Buildings Library for detailed system‑level energy and HVAC simulations.
#17 OpenModelica
Free Modelica platform that can run the Buildings Library for whole‑building energy simulations and control system studies.
Integrated cloud service that links BIM models with energy analysis workflows, enabling collaborative performance reviews.
#19 DOE‑2
Legacy DOE simulation engine still used for quick, rule‑based energy analysis and benchmarking; many modern tools wrap its engine.
Web interface hosted by NREL that lets users run EnergyPlus simulations without installing software; includes scenario management and result visualization.
Open‑source MATLAB‑based toolbox for transient thermal modeling of building envelopes and HVAC systems.