Hi, we have been using the "Advanced Energy Modelling For LEED" document and have a question one some of the exceptional calculation methodology examples. The interiro lighting controls (D.4 in the document) references a LEED interpretation that I cannot find in the database (10102). Can the document itself be used as reference for ECM? We have the same system installed and would like to use the 45% reduction in lighting power for hotel rooms as per the Interpretation referenced instead of 10%.
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
June 19, 2012 - 9:40 am
Yes you can reference that document. Glad to see someone is using it!
TOMAS URIBE
PROJECT MANAGERSOLUCIONES ENERGETICAS SOSTENIBLES
9 thumbs up
June 19, 2012 - 10:11 am
We got a coment by the reviewer saying savings should be fully justified and based on a schedule change accounting for the guest room occupancy and not on a reduction in LPD.
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
June 19, 2012 - 10:31 am
If you are using a published methodology it is the responsibility of the modeler to indicate to the reviewer what they are basing the savings on.
In my experience a schedule change would be the more accurate way to simulate energy savings as compared to a reduction in LPD. But if the project is using an approved, published methodology it would be acceptable.
Chilufya Lombe
Sustainability ConsultantSolid Green Consulting
30 thumbs up
June 20, 2012 - 1:44 am
Hi Marcus, yes the document is extremely useful! I would also look at a schedule change but never having gone through this process before I think it is 'safer' for us to use tried and tested methodologies as we are not sure what 'fully justified' entails.
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
June 20, 2012 - 10:48 am
In your case "fully justified" would be to cite the document that was the basis for the modeling methodology.