FAQs about EAp2 :

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

NC-2009 EAp2:Minimum Energy Performance

Treatment of District or Campus Thermal Energy and EAp2-7 tables

Our project involves the new construction of a healthcare clinic that is being heated and cooled via heating and chilled water produced by a campus central plant. We are modeling the design using Carrier's HAP. We have decided to pursue Performance Option 1 (streamlined path) from the "Treatment of District or Campus Thermal Energy in LEED 2009" publication which allows the modeling of campus thermal energy as purchased energy for both baseline and proposed case with no direct accounting of the campus's network's efficiency. I assume that on the EAp2-7 spreadsheet, under 1.4.3 HVAC water side, after selecting yes for district heating/cooling, I can leave all the inputs blank regarding chillers, chw pumps, cooling towers, boilers, etc. since all that equipment is "upstream" of the building. Is this correct? If so, shall I include a narrative explaining this, or can I fill out the first cell on the spreadsheet and describe that we are following Performance Option 1? Thanks for any assistance or advise.

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Thu, 02/23/2012 - 22:33

In addition to completing the tables as fully as possible provide a narrative describing the specific situation and your approach. I would recommend a separate document upload.

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