[Bldg-sim] LEED-CS EAc1 calculator - baseline or proposed?

[James Hansen]

Sorry if this question has been asked before, but I couldn't find in the
archives.

 

I think most people know about the LEED-CS EAc1 calculator, where the
energy cost savings is "pro-rated" or "post-processed" to take into
account the fact that the CS Owner/Developer can't control all energy
consuming aspects of the building:

 

https://www.usgbc.org/ShowFile.aspx?DocumentID=6926

 

However, when you figure out the "Percent of Energy Cost Influenced or
Directly Controlled by the CS Owner/Developer", are you supposed to use
the baseline model or proposed model sub-meter outputs?

 

Clearly, since most of the energy efficiency measures done on LEED-CS
projects are owner controlled (HVAC, envelope, etc), if you calculate
the % controlled (based on cost) for the proposed model, it is going to
be less than if you use the baseline model, since most of the tenant
responsibilities don't change between the two models (plug loads,
lighting, etc).   

 

I feel like the baseline model is the right one to calculate how much
the Owner controls, but wanted to see what people thought.

 

Anyone know for sure?

 

Thanks!

 

GHT Limited
James Hansen, PE, LEED AP

Senior Associate

1010 N. Glebe Rd, Suite 200

Arlington, VA  22201-4749

703-338-5754 (Cell)

703-243-1200 (Office)

703-276-1376 (Fax)

www.ghtltd.com <http://www.ghtltd.com/> 

 

 


The information contained in this communication is confidential, may be privileged, and is intended only for the use of the addressee.  It is the property of GHT Limited.  Unauthorized use, disclosure or copying of this communication or any part thereof is strictly prohibited and may be unlawful.  If you have received this communication in error, please notify me immediately by return e-mail or by e-mail to ght at ghtltd.com, and destroy this communication and all copies thereof, including all attachments.  Thank you.



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