FAQs about EAp2 :

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

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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?

Our project has a diesel backup generator. Should we include it in our energy model?

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?

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Forum discussion

NC-2009 EAp2:Minimum Energy Performance

Data Centers - Efficiency for UPS and computer servers for the

Dear all We're working in the energetic simulation for the credit EA p 2 in LEED NC 2009 in a Data Center building. To that end, we're developing a model based on Appendix G "Performance Rating Method" of ASHRAE 90.1 2007. For the "Proposed Building Performance" the efficiency for electric equipment is real efficiency. But there's no indication in ASHRAE 90.1 2007 for the efficiency in electric equipment for the "Baseline Building Performance" for data centers (we have troubles for UPS and computer servers). In Energy Star we've found two documents indicating the efficiency required for UPS´s and computer servers. These documents are: computer servers (Energy Star Program Requirements for Computer Servers Draft 1 Version 2.0) and UPS´s (Energy Star Program Requirements Product Specifications for Uninterruptible Power Supplies (UPS's) Eligibility Criteria Draft 3 Version 1.0). My question is: Can we use the efficiency for UPS´s and computer servers indicated in these documents for baseline simulation? If not, what is the efficiency for UPS´s and computer servers we should use in the baseline simulation for the data center? Thanks a lot for your help

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Tue, 09/25/2012 - 13:46

Some additional guidance for data centers is contained in the next version of LEED, v4. The most recent version should be posted here on October 2nd - http://www.usgbc.org/DisplayPage.aspx?CMSPageID=2360 In the meantime you could contact GBCI and ask for some guidance on the issue.

Tue, 09/25/2012 - 14:48

Thank you Marcus! I'm afraid we've already contacted GBCI and they recomend to place a CIR. I was hoping to find someone certifying a Data Center who had this problem before to explain how they've solved.

Tue, 09/25/2012 - 15:24

How long ago did you contact GBCI? There is a draft spreadsheet for data centers that has been used by submitted projects. The spreadsheet basically establishes the baseline. I would contact GBCI and ask for it.

Tue, 03/12/2013 - 13:37

Hello Marcus I have the same problem as described above. I would like to define Baseline for a server room in an office building. As the server room constitutes for 70% of energy in the whole building, I can see a big potential in optimizing this part of the project. Is there any chance you could send a link to these spreadsheets? Thank you in advance

Tue, 03/12/2013 - 22:08

I have not seen it posted yet. Contact GBCI and ask for it.

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