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CI-2009 EAc1.3:Optimize Energy Performance—HVAC

Exterior lighting design

Hi, We are working on commercial interior projects. While doing the model we didn't receive exterior lighting design. Should we include the exterior lighting value into model in the design submission Thank you

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Michael Smithing
Director - Green Building Advisory
Colliers International Ltd.
LEEDuser Basic Member
201 thumbs up

Mon, 07/31/2017 - 07:41

Commercial Interiors projects only need to include lighting INSIDE the building in the calculation of the lighting power density. External lighting does not need to be included. We had a project with terrace lighting several years ago and the review team confirmed that external lighting does not need to be included in the calculations.

Mon, 07/31/2017 - 09:05

Hi Michel, Do we need to model the interior lighting power density including unconditioned area. Please clarify on this issue
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Tue, 08/01/2017 - 15:00

In general you need to include everything associated with the project's scope of work. If that includes exterior lighting then it would be included. It gets excluded if the exterior lighting was already installed. Same goes for lighting in unconditioned spaces.

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