| Feature | IES VE Free (Official) | |--------|------------------------| | Cost | $0 (with registration) | | Who can use it | Students, educators, and sometimes professionals for limited projects | | Included modules | ModelIT (geometry), Vista (results viewer), LEED/EPC templates (basic) | | Limitations | No ApacheHVAC (detailed HVAC), no SunCast (advanced solar), no CFD; model size capped | | Download source | Official IES website (requires academic email or account) |
For most users: IES VE Academic (if eligible) > 30-day Trial > Free Viewer
Always download directly from iesve.com to ensure safety and full functionality.
To download the top free version of the IES Virtual Environment (IESVE) software, you should utilize the official 30-day free trial, which provides full access to the software’s features. Official IESVE Free Download Options (2026) 30-Day Fully Featured Trial (IESVE 2025) ies ve software download top free
This is the best way to get the full software suite for free to test its capabilities, including the latest FEA and compliance features. Student Version ($70/year)
While not totally free, IES provides deeply discounted, fully featured licenses for students ($70) through their educational partner programs. VE-Gaia Trial
A specialized trial for early-stage design analysis, allowing for sustainable masterplanning and embodied carbon calculations. Integrated Environmental Solutions | IES How to Install and Activate Create an account on the IESVE website Download the IESVE application suite for Windows from the Download Centre Request Key: | Feature | IES VE Free (Official) |
Launch the application and click "Request Licence Keys" when prompted to receive an activation code via email.
Enter the activation code to unlock the full 30-day functionality. Integrated Environmental Solutions | IES
Note: As of April 2026, IESVE 2025 Feature Pack 2 is available for testing, offering advanced simulation for HVAC and decarbonization. Integrated Environmental Solutions | IES Important Security Warning Free Trial | IES Virtual Environment To download the top free version of the
Developed by the U.S. National Renewable Energy Laboratory (NREL), OpenStudio is a direct competitor to IES VE. It uses the same EnergyPlus simulation engine (which IES VE also uses under the hood).
Advantages over IES VE free tier:
Disadvantages:
A: No native Mac version. Use: