Forum discussion

NC-2009 EAp2: Minimum Energy Performance

See LEEDuser’s guidance on NC-2009 EAp2 »

Clarification on minimum energy savings and EA credit 1

February 10, 2011

Joanne Haye

Sustainable Design Leader
JR Miller and Associates

LEEDuser Premium Member

2 thumbs up

February 10, 2011

I have a Client that is considering LEED certification, we have done a preliminary energy model, we show a 24% savings off the baseline. EA prerequisite 2 asks for a demonstration of 10% energy savings. With the 24% savings we are showing - does the 10% act as a subtraction for EA credit 1? Giving us 2 points for EA credit 1 or will we realize the entire 24% to achieve 7 points?

Post a reply

David Hubka

Director of Operations
Transwestern Sustainability Services

LEEDuser Basic Member

527 thumbs up

February 11, 2011 - 4:46 pm

Joanne, with a 24% energy cost savings when compared to the baseline you will achieve EA Prereq #2 and will be awarded 7 points in EA Credit #1.

Log in or register to post comments

Add new comment

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

See all forum discussions about NC-2009 EAp2

Subscribe to new posts about NC-2009 EAp2

Post a new question about NC-2009 EAp2

See LEEDuser’s guidance on NC-2009 EAp2 »

FAQs about EAp2:

Is it acceptable to model a split-type AC with inverter technology compressor as a heat pump, like modeling VRF?

A portion of our building envelope is historic. Can we exclude it from our model?

For an existing building, do I need to rotate the 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

Our process load is higher than 25%. Do we have to justify that?

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?

Can the Trace 700 'LEED Energy Performance Summary Report' by uploaded to LEED Online in lieu of the Section 1.4 tables spreadsheet?

Which baseline HVAC system do I use if my building has no heating or air conditioning?

Our project has a diesel backup generator. Should we include it in our energy model?

Can SHGC be higher in the proposed than in the baseline model?

View answers »