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?

View answers »

Forum discussion

NC-2009 EAp2:Minimum Energy Performance

Office Building + warehouse + Production Floor

Hi all, We have a project back in climate zone 1 and in the struggling to understand energy modeling for such building combination. Our office are using unitary split units with OA injection fan, while the production floor and warehouse are naturally ventilated. Do we just simulate the office building only or has to include the production floor + warehouse. Any feedback is greatly appreciated.

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Wed, 10/17/2012 - 14:08

If the entire building is part of the LEED project submission then it all needs to be modeled. You can use System 9 or 10 from Table G3.1.1A in 90.1-2010 for the unconditioned spaces.

Mon, 10/22/2012 - 01:16

Hi marcus, in climate zone 1, we need more cooling and rather not on heating. But the suggested system 9 or 10 (correct me if i'm wrong) were meant for heating for storage. while the actual, our warehouse and production floor are purely natural ventilated or unconditional spaces. please assist.

Mon, 10/22/2012 - 14:16

System 9 and 10 would also cover ventilated only spaces. In climate zone 1 the heating would likely not come on and therefore not affect the modeling results.

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