FAQs about EAp2 :

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?

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?

View answers »

Forum discussion

NC-2009 EAp2:Minimum Energy Performance

Energy Modelling Issues

I am project admin for a V3-2009 NC project and wondered if anyone had issues with energy modeling software and accuracy of results with complicated/unique systems? Our team has contacted software reps, to no avail. There is a concern that though our savings will be realized eventually, it will be M&V before we can prove it and our LEED endeavors will have been deflated. Do LEED reviewers speak to these issues (requesting a phone call?) or is it fairly common that modeling software can't keep up with advances in systems? Thanks-signed, In-over-my-head

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Mon, 03/16/2015 - 17:00

There are quite often work arounds for most newer systems that may not be directly addressed by the software. In general a good modeler will make sure that the system in the project can be modeled (either directly or with an established work around) by the software being used. Commercial software like Trace should have technical support that could recommend how to model a unique system. Other software may have similar help available, if not perhaps posting on one of the discussion forums at onebuilding.org may help depending on the software used. The reviewer may or may not be able to help but there is only one way to find out. They may be able to point you in a more specific direction, even if they don't have the answer.

Mon, 03/16/2015 - 18:13

Thanks so much Marcus!

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