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IES Virtual Environment (IESVE)

IESVE customers can download the latest version of the software.


A 3D graphical route to the non-dwelling UK compliance SBEM engine.

IESVE for Students

Students can purchase an annual licence for selected IESVE applications for just £50. 

System Requirements

Like many computer programs, IESVE requires certain hardware and software specifications in order to install and run. These are basic requirements, though you may want to use our recommended suggestions to improve performance.

The following list of requirements and recommendations apply to the current version:

Supported Environments:

  • Windows 10
  • Windows installations on Mac OS via:
    • VMware Fusion
    • Parallels Desktop
    • Boot Camp

Note: IESVE will run on 64bit versions of Windows, but it will run as a 32bit application. Our Radiance, Microflo and SunCast applications support multithreading.

Software Required:

  • Microsoft® Internet Explorer 7.0 or higher
  • .NET Framework 2.0 from Microsoft

Minimum Hardware:

  • 1152 x 864 screen resolution
  • Dedicated OpenGL-compliant graphics card
  • 2Ghz+ Intel Pentium / AMD Athlon CPU
  • 2Gb RAM

Recommended Hardware: (for large projects)

  • 1280 x 960 screen resolution
  • 256Mb OpenGL v2.1 compliant graphics card
  • Dual core CPU (Intel Core 2, or AMD x2 series)
  • 4Gb RAM

Unsupported Environments:

  • Linux

Supporting Material


What's New?

With more flexibility to users and updates for local compliance methodologies and continued decarbonisation/electrification at the heart of this release, IESVE 2023 brings greater capability and increased functionality that’s in line with industry developments. 


Getting Started

New to the IESVE software and need help learning the basics? Our FREE Getting Started course provides an introduction to our integrated suite of building performance simulation tools.


Online Help

All the information required to set up your licence, install the software and register the IES products. Plus, access User Guides for all applications.

Need any help?

If you need any help installing the VE please contact our Support team.