Forum discussion
CS-2009 EAp2: Minimum Energy Performance
I am working on CS project..i have small doubt
If tenant spaces (HVAC, LIGHTING etc) comes under owner/developer scope of work, those spaces should be model as per ASHRAE (in baseline).
right??
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
5907 thumbs up
January 17, 2013 - 9:44 am
Everything gets modeled according to ASHRAE. The Baseline according to Appendix G and the Proposed as designed. For CS projects also apply the Reference Guide appendix for modelling CS projects.
If the space has been designed then model that in the Proposed, if any space has not been designed model identical to the Baseline.
Anil Bhari
Min engineering inc3 thumbs up
May 21, 2013 - 11:05 am
Marcus,
HVAC system has not been designed for space. but tenant have to meet at least local code, which is IECC-2012. so in this case can we model proposed case based upon IECC-2012 (for cooling and heating efficiency, Lighting) or we have to model identical to baseline.
Thank you
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5907 thumbs up
May 21, 2013 - 11:45 am
You could try and make the case that the tenant has to follow code and claim savings relative to the ASHRAE baseline. Only issue I can think of - if the system has not been designed then how will you know what system to model in the Proposed. If you can address that you could probably make the case. Make sure to thoroughly explain this to the reviewer and you should probably do it as an exceptional calculation.