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

NC-2009 EAp2:Minimum Energy Performance

EAp2- Energy Modelling and Process Loads

Hi, I am working on a project (Stadium) where the only significative improvement on energy performance is lighting because the COP of the HVAC is basically the same and the envelope is not much better neither. It is possible to include different "process loads" in the baseline and at the proposed (with reduced loads) in order to achieve the 10% improvement on energy performance? Thanks, Pablo H.

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Mon, 10/17/2011 - 16:07

Yes you will need to follow the exceptional calcuation method. This involves establishing the baseline based on standard practice for the process in your location. Any claim of energy savings needs a thorough narrative explaining the baseline and the strategy for energy savings along with an explanation of how the savings were calculated. Do you have a particular process load in mind?

Mon, 10/17/2011 - 16:50

Thanks for the reply. Currently we are trying to achieve the 10% improvement without entering on a ECM narrative so the processes loads are not still considered as different in the baseline and in the proposed. We don´t have any processes loads in my by the moment. There are other factors like automation and lighting control that can contribute to a better performance.

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