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Forum discussion

NC-2009 EAp2:Minimum Energy Performance

Exterior Lighting for Baseline

We refer to ASHRAE 90.1 Supplementary Addendum i which discuss the LPD of tradable surface on table 9.4.5. In this table, they allow the base site light power in "watts" to be added for the given zones such as zone 2 of 600 watt. Since the allowed LPD of all areas of this addendum is very low. Can we add the 600 watt as the power of the baseline? Do we even have to follow the addendum? Can we just follow the standard? Thanks

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

Thu, 05/23/2013 - 12:59

You do not have to follow the addendum, they are all optional. Looks like the base site lighting power replaced the additional 5% allowance, so yes you can add it.

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