See all forum discussions about NC-2009 EAp2

Subscribe to new posts about NC-2009 EAp2 Post a new question aboutNC-2009 EAp2

See LEEDuser’s guidance on NC-2009 EAp2»

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?

View answers »

Forum discussion

NC-2009 EAp2:Minimum Energy Performance

Exterior lighting allowance

Haojie Wang

Energy Modeler

KJWW Engineering

LEEDuser Basic Member

3 thumbs up

March 11, 2015

We have a project that specified exterior lgithing for 1120 W. Based on IECC, we could claim supplemental allowance of 1300 W regardless o the exterior area. However, 90.1 does not indicated it, could we still use it in EAp2? I think SSc8 allows it but EAp2 or 90.1 does not make it very clear...

Post a reply

Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Wed, 03/11/2015 - 16:07

Both SSc8 and EAp2 are based on 90.1. You can't use IECC. The newer versions of the SSC8 form use 90.1-2010 values since this version aligns better with the light pollution zones. Under this method there is a supplemental base allowance. For EAp2 you can use the 90.1-2007 methodology which will normally show more energy savings. You can also use the 90.1-2010 method since it produces a conservative result. The methodology used does not have to be consistent for these credits.

Add new comment

To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.