FAQs about EAp2 :

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?

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?

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Forum discussion

CS-2009 EAp2:Minimum Energy Performance

SIMULATION METHOD

HI, IM RICARDO GUEMEZ FROM MEXICO CITY, I AM IN THE PROCESS OF SIMULATING A WAREHOUSE FOR TENANT LEASING, THE OWNER IN ALL PROJECTS ONLY INCLUDE NATUARAL VENTILATION WITH IEQ-01 COMPLIANCE. ACCORDING WITH LEED AP THE PROJECT IS C&S. HOW CAN I SIMULATE THE PROJECT IN DESIGN BUILDING AND BASE BUILDING. Has anyone been in this similar situation?

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Fri, 07/22/2011 - 20:43

Yes. We had a project in German with natural ventilation only. Basically what you can do is to set the fan power in your calculation to zero 0. This was a recommendation of one very helpful member of the GBCI's review team. But what you can't do without going through the trouble of exceptional calculations is to claim savings in cooling or heating because of the natural ventilation. Also be careful with how you account for cooling. You might have to assume cooling even if you don't have it everywhere. good luck.

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