Forum discussion
Schools-2009 EAp2: Minimum Energy Performance
HAP version 4.5 is not capable of modeling hot water temperature supply temperature reset in the baseline case as required under ASHRAE 90.1-2007 Appendix G3.1.3.4 yet the software has been approved by LEED for energy modeling. Can anyone tell how to comply with this section of the appendix when using this software version?
LEEDuser is supported by our premium members, not by advertisers.
Go premium forTo post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.
A portion of our building envelope is historic. Can we exclude it from our model?
For an existing building, do I need to rotate the model?
Our process load is higher than 25%. Do we have to justify that?
Our local code references ASHRAE 90.1-2010. Should I use that for my documentation, or 90.1-2007?
Can mezzanines open to floors below be excluded from the energy model?
How do I provide a zip code for an international location?
For a project outside the U.S., how do I determine the climate zone?
For a project outside the U.S., how do I determine the Target Finder score?
Do hotel rooms need automatic light shut-off control?
How commonly are the 90.1 mandatory compliance forms submitted as part of EAp2/EAc1?
The Section 9 space-by-space method does not include residential space types. What should I use?
Can the Passive House Planning Package (PHPP) be used to energy model for LEED?
Which baseline HVAC system do I use if my building has no heating or air conditioning?
Our project has a diesel backup generator. Should we include it in our energy model?
Can SHGC be higher in the proposed than in the baseline model?
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
August 28, 2013 - 12:41 pm
I don't think you can do so. Technically the software you select to do your modeling for Appendix G (LEED) must be able to model the systems in your proposed and baseline buildings (G2.2). So if the baseline has a boiler you should not be using HAP unless you can figure out a way to include this strategy with a work around or through so kind of post-processing of the modeling results.