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Our project has a large process load—75%. Despite our efforts to make an efficient HVAC design, the cost savings are minimal. What can we do to earn this prerequisite and be eligible for LEED certification? Is there any flexibility in how we model the p

Can SHGC be higher in the proposed than in the baseline model?

Our process load is higher than 25%. Do we have to justify that?

Do I need to justify the electrical and fuel rates I am using in my model?

Our local code references ASHRAE 90.1-2010. Should I use that for my documentation, or 90.1-2007?

Can I claim exterior lighting savings for canopy lighting even though a baseline model cannot include shading elements?

The project is built on a site with existing exterior lighting installed. How should this be accounted for?

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?

Is it acceptable to model a split-type AC with inverter technology compressor as a heat pump, like modeling VRF?

Can the Trace 700 'LEED Energy Performance Summary Report' by uploaded to LEED Online in lieu of the Section 1.4 tables spreadsheet?

A portion of our building envelope is historic. Can we exclude it from our model?

Which baseline HVAC system do I use if my building has no heating or air conditioning?

For an existing building, do I need to rotate the model?

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Forum discussion

CS-2009 EAp2:Minimum Energy Performance

Addenda to ASHRAE standards

Jens Apel

LEEDuser Basic Member

89 thumbs up

June 7, 2012

Edit: question has already been answered in February 2012 here: http://www.leeduser.com/credit/CI-2009/EAp2 Didn't find it before, sorry for any confusion. Dear all, on several spots in the Ref Guide it is said "project teams wishing to use ASHRAE approved Addenda for the purpose of this credit may do so at their discretion. Addenda must be applied consistently across all LEED credits". This means that project teams may use single addenda to the standard as long as they use it on all credits. they do not have to follow all addenda published for that standard. Is that correct? Sorry for cross-postings, but this is more of general nature. Thanks in advance!

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