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Forum discussion

CS-2009 EAp2:Minimum Energy Performance

Lighting Power Density requirement for Tenant spaces

Pedro Urazan

LEEDuser Basic Member

2 thumbs up

Project location :

April 20, 2017

Hi, Is it required that the Tenants comply in their lighting designs with the Lighting Power Density requirement of ASHRAE 90.1 2007? Or is it just for energy modeling purposes that the lighting power allowances for each tenant space is assumed as indicated in Section 9.6.1.? Thanks

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Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Fri, 04/21/2017 - 14:06

Only the CS scope of work is covered by a CS submission. So no the tenants are not required to do anything unless required to do so by a provision in the tenant lease agreement. Because it is outside the scope of work we keep this parameter neutral in the models. In the US this is also the code minimum in most places so there would be little danger of the tenant going over this allowance. In other countries this may not be the case. That said, sorry but I need to lament about the regulatory mindset in the world today. So if you are building a green building what is the right thing to do in this situation? Why is the owner pursuing LEED? Is it to skirt the edge of the rules and get a plaque or to produce an affect?

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