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CS-v4 EAp2:Minimum energy performance

LEED Group C&S - Applicable Cooling source in Propose case

I am modelling for LEED GROUP - v4 BD+C: CS. Project has 40 Office buildings shared with same basement and served with multiple Water Cooled Chillers as cooling source. For LEED Group Certification I am currently prioritising to model single building, please advice what would be applicable strategy for Propose case Model? Case 1: Model with actual Efficiency of Water Cooled Chiller, SFP of FAHU, SFP of PUMPS, Thermal Recovery wheel Efficiencies etc... Case 2: As the building receive only Chilled Water, so consider the building as District Energy System, hence model the building as per Streamlined DES Modelling guidelines described as per the Credit Requirements. I am presuming, the applicable methodology would be CASE 1 in my project. Please advice.

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Fri, 06/09/2017 - 13:06

If the central plant only serves these buildings then you model case 1. It is not considered a district system unless it serves buildings outside the project in question. In v4 the DES guidelines are required to be applied if applicable.

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