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Treatment of DES for LEED-CI 2009

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Paul Conrad
Energy Engineer
CLEAResult Consulting
LEEDuser Basic Member
222 thumbs up

Thu, 12/09/2010 - 16:38

Jason, Your safest bet is to model it exactly as though you would an NC District Thermal Energy System, then isolate the portion of the building that is being built out and compare that. I realize that this is a lot of work, but it's the method that is most likely to get approved by a reviewer. I would recommend against trying to model it in some other fashion, unless you submit a CIR to get clarification on what the EA TAG would like to do in this situation. Paul

Thu, 12/09/2010 - 18:26

Thanks Paul, I was going to do exactly what you stated in the first part of your response, until I came across that Appendix A that solely address LEED CI 2009. I just don't know what USGBC's intent was when developing this Appendix A. Something has to be modeled for my cooling and heating sources along with a utility rate, but this is unclear according to their Treatment of DES document.

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