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Forum discussion

NC-2009 EAp2:Minimum Energy Performance

ASHRAE standard

Hello, Can someone let me know if ASHRAE 90.1 2010 is acceptable to use in relation to lighting or is 90.1 - 2007 still required to be used? I have read the FAQs above, but want to make sure that information is still true. Thanks,

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

Wed, 04/15/2015 - 15:11

You can use any addendum to 90.1-2007. I am not sure if any of the lighting changes resulted from an addendum. If not then you should not be using them. I am not sure why you would want to do so as they will likely reduce your energy savings due to the more stringent baseline.

Wed, 04/15/2015 - 17:32

Hi Marcus, Thanks for the reply. I probably should have put a little more context in the question. This question is actually in relation to CI 2009 EA1.1, but the NC page seems to get more traffic, so I figured I would ask here. Our COMcheck LPD was done using 2010 standard because of local code, so I wasn't sure if I needed to have the MEP redo the calculations with 2007.
Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Wed, 04/15/2015 - 18:39

The 2010 would probably get accepted because it would be a conservative approach, however you may score better if you use 2007.

Wed, 04/15/2015 - 18:46

Thanks Marcus. I appreciate the feedback.

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