we’re currently involved in the LEED certification of an office building, located in a Campus. For purposes of minimum energy performance (pre-requisite and credit), cooling and heating needs of this building will be supplied by a DES, with default energy performance characteristics. This is because the building itself has an HVAC plant installed, but this plant serves several buildings in the campus.
For purposes of demand response credit, two questions we would like to clarify:
- since cooling and heating is treated as a DES serving the building, shall they be included in demand response scope, i.e., building peak demand shall include DES peak load?
- DES is being considered, for purposes of the energy model, with default performance characteristics. If it must be included in demand response credit, is there any constraint to this consideration?
Thanks in advance,
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December 16, 2021 - 8:55 am
I'm not aware of any exceptions which would allow you to exclude the DES from the demand response scope. However, I would think you would only need to include the portion of the DES serving the building when determining the peak load. I'm assuming you're planning on modeling the DES using Path 2: Full DES performance accounting, and therefore you would have a virtual DES-equivalent plant in the Proposed model sized for the building only. In this case, the peak load from the energy model would be representative of the actual peak load of the building itself without including the full load of the DES serving the additional campus buildings.