Software Validation and Approval

The IES Virtual Environment has been assessed against a number of global as well as regional standards. These are listed below with links to further related information.

ASHRAE 140: 2001, 2004, 2007

IES is fully validated under ASHRAE Standard 140 and have published the results for all versions of ASHRAE Standard 140; 2001, 2004 and 2007 (Heating, Cooling and Envelope).

standard
 

BEST TEST

standard
 
 

CIBSE TM33

standard
 

EU EN13791: July 2000

standard
 
 

EPACT Qualified

standard
 
 

UK National Calculation Methodology

methodology
 
 

ASHRAE 55 calculation procedure

methodology
 
 

ASHRAE 90.1 Appendix G PRM calculation procedure

methodology
 
 

ASHRAE 62.1 calculation procedure

methodology

California Energy Commission

Approved for non-residential Compliance 2013, Title 24
 

US Department of Energy

Approved the use of IES-VE for Federal Incentives (IRS Code 179D)

ISO 7730 calculation procedure

methodology
 
 

South Africa National Building Regulations: Regulation XA3 of Part XA: Energy usage in buildings

methodology