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CS-2009 EAp2: Minimum Energy Performance

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campus energy - pieces of the pie

September 3, 2013

charles bell

principal
theGreenTeam, Inc.

LEEDuser Basic Member

12 thumbs up

September 3, 2013

On our campus AG projects, We have a central plant providing energy for 6 buildings. Only three of the buildings are LEED projects. Our engineers have not subtracted the 3 non-LEED buildings from the EAp2 model. Therefore I think that we are losing efficiency for the actual LEED projects. Am I right? And if so, do the non-LEED projects need to be modeled - or can we possibly use some default numbers for them.

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Marcus Sheffer

LEED Fellow
7group / Energy Opportunities

LEEDuser Expert

5907 thumbs up

September 4, 2013 - 9:34 am

To account for the central plant you should follow the Treatment of District or Campus Thermal Energy in LEED v2 and LEED 2009 - Design & Construction (DES v2) dated August 10, 2010 which can be accessed at: https://new.usgbc.org/resources/des-district-energy-systems-guidance-v22....

Having non-LEED projects on the plant should have no effect if following the DESv2 or treating it as purchased energy under Appendix G. In all cases you never model the entire plant.

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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?

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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?

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For a project outside the U.S., how do I determine the Target Finder score?

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How commonly are the 90.1 mandatory compliance forms submitted as part of EAp2/EAc1?

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