IES Virtual Environment (IESVE) software is an integrated building performance simulation suite used for energy modeling, decarbonization, and sustainability analysis. You can access the official download and supporting resources through the IES Download Centre Software Download & Versions Latest Version : The current major release is IESVE 2025
, which includes updated tools for global energy regulation and code compliance. Free Trial 30-day free trial is available for new users. You must register an account on the IES website to receive activation keys via email. Education Licenses
: Students can purchase an annual license at a significantly reduced rate (approx. £60), requiring verification of student status. Version Archive
: If you need to complete a project using an older version, IES maintains a Version Archive for legacy installers. Integrated Environmental Solutions | IES Installation Requirements IES Download Centre - Integrated Environmental Solutions ies virtual environment download
virtualenv: A popular and widely-used virtual environment toolconda: A package manager that also provides virtual environment functionalitypipenv: A tool that combines virtual environment and package management functionalitypoetry: A tool that provides virtual environment and package management functionality with a focus on simplicity and reproducibilityvirtualenv is a popular, lightweight tool for creating virtual environments. To install it, run the following command:
pip install virtualenv
| Error | Solution |
|-------|----------|
| "Download fails at 99%" | Disable VPN/ad-blocker; use Chrome or Edge. Clear browser cache. |
| "Missing MSVCP140.dll" | Install Visual C++ Redistributables (Microsoft official). |
| "License checkout failed" | Check firewall; allow ieslic.exe and ve.exe through Windows Defender. |
| "OpenGL error" | Update GPU drivers. Disable integrated graphics for IES VE. |
To create a virtual environment using virtualenv, navigate to your project directory and run: IES Virtual Environment (IESVE) software is an integrated
virtualenv myenv
This will create a new virtual environment named myenv.
Once you have downloaded the installer (IESVE_2024_Setup.exe or similar):
To avoid a failed installation or sluggish performance, verify your hardware against these recommendations. Popular Virtual Environment Tools
| Component | Minimum Requirement | Recommended | | :--- | :--- | :--- | | OS | Windows 10 Pro (64-bit) | Windows 11 Pro or Enterprise | | CPU | Intel Core i5 / AMD Ryzen 5 | Intel Core i7 / AMD Ryzen 7 (8+ cores) | | RAM | 8 GB | 16-32 GB (for large simulations) | | GPU | 2 GB VRAM, DirectX 11 | 4+ GB VRAM, NVIDIA Quadro or RTX series | | Storage | 10 GB free (SSD) | 20 GB free (NVMe SSD) | | Display | 1920 x 1080 | 3840 x 2160 (for ModelIT interface) |
Important: IES VE does not natively support macOS or Linux. Users on Apple Silicon (M1/M2/M3) must run Windows 11 via Parallels or Boot Camp (Intel-based Macs only).