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CS-2009 EAp2:Minimum Energy Performance

LEED CS if no provision of Tenant's AC system by base building

Dear LEEDuser community, I have a project which is about 60 storey commercial office building. The office spaces are strata titled, and the developer intent to sell these office spaces to individual owner. As such, developer has no intention to provide any lighting or air conditioning system to these strata titled office spaces. Only the common/circulation spaces which belongs to the base building will have provision for lighting, ACMV and etc. In this respect, is it still possible to attempt for LEED CS? How can we demonstrate the 10% energy savings in EAp2 if there are no provision of tenants' lighting and ACMV system? What should be the baseline for ACMV system? Should it still be centralised water cool system when the owners to the strata titled office will most likely to use VRV or multi-split packaged units. Kindly share your views with me. Thank you in advance. Rgds, Andrew

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

Tue, 09/17/2013 - 15:12

Yes it is still possible. You will need to get your savings from the common spaces and the building envelope. For a 60 floor building the baseline system is a system #7 or #8 from 90.1-2007 Table G3.1.1A. Both include water cooled chillers. There is also a spreadsheet which can be used to adjust the point thresholds based on how much of the energy systems in the building are under the control of or influenced by the CS project. This would help too.

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