It allows the design and operation of comfortable buildings that consume significantly less energy. Paste number 140169: IES Virtual Environment 2013 free download Pasted by: asd When: 4 years, 8 months ago Share: Channel: Paste contents: Display As IES Virtual Environment 2013 IESVE for Engineers 2013 IESVE for Architects 2013 The IES Virtual Environment (IESVE) is a powerful, in-depth suite of building performance analysis tools.