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Forum discussion

NC-2009 EAp2:Minimum Energy Performance

Mandatory requirements

Recently, there was a discussion in this forum on exterior lighting being a mandatory requirement for EAP2 compliance. In continuation with that discussion, i request for a couple of clarifications: 1) In a scenario where total exterior LPD exceeds baseline case. However, the exterior lighting is partly through solar and the portion of the lighting which is not solar powered will have LPD less than baseline. In such a scenario baseline electric cost of exterior lighting will be greater than proposed electric cost. Is this approach acceptable? 2) Section 6.4, mandates HVAC equipment efficiency. Is it acceptable to go for a COP lower than the baseline case and IPLV greater than the baseline case under ARI conditions? Kindly clarify.

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4452 thumbs up

Fri, 09/25/2015 - 14:56

1. I think it would depend on the nature of the solar exterior lighting. If the solar exterior lighting are stand-alone units and are not wired into the building systems then I think it would qualify. If all of the exterior lighting is wired into the building and some of it is offset with solar then it would not qualify. 2. No. The equipment must meet both.

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