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NC-v4 EAp2:Minimum energy performance

district energy - does the plant need to follow same ASHRAE standard?

Project is utilizing energy from a central plant, the team is attempting to decide between using the purchased energy approach vs. modeling the plant.  The project is LEED v4 and follows ASHRAE 90.1-2010; if the central plant does not comply with 90.1-2010 is the "model the plant efficiencies" no longer an option?   If the central plant does not meet 90.1-2010 does that disqualify the entire project? 

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

Thu, 01/09/2020 - 19:35

Please provide more of description of the central plant building.

Thu, 01/09/2020 - 22:08

The central plant provides domestic hot water, chilled water, and heating hot water to 2 buildings on a campus through underground piping and pumps. The plant utilizes a series of water cooled centrifugal chillers, cooling towers, gas fired domestic boilers and gas fired hydronic boilers.   Electrical is stepped down through the central plant and distributed to the 2 buildings, but is not generated by the plant.  The central plant is under separate construction contract from the 2 campus buildings.    
Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Tue, 01/14/2020 - 21:27

Based on your description I would say no it does not need to comply for LEED assuming it is outside the LEED project boundary.

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