Does anyone have experience showing code compliance via the performance path in 90.1-2013 vs 2015 IECC? I have a project that isn't meeting the 15% threshold against the 2015 IECC standard reference design (per C401.2(3)). I have always thought the 15% was to level the compliance paths, but the main difference I am finding between the 2015 IECC SRD and 90.1-2013 budget building is the mandatory plug load control requirement. What am I missing to account for the 15% difference?

Thanks,

Cory Duggin, PE, LEED AP BD+C, BEMP
Principal/Energy Modeling Wizard
TLC Engineering for Architecture
6 Cadillac Drive, Suite 200
Brentwood, TN 37027-5080

direct:

615-346-1939

website:

www.tlc-engineers.com