Process Energy

Graham Langton

Building Services Engineer

PM-Group

LEEDuser Basic Member

1 thumbs up

November 14, 2013

All, How does LEED CI and section 11 modelling view process energy? For an industrial / manufacturing facility with new process equipment in particular. In 90.1, process energy is not dealt with. Advanced energy modelling for LEED says model process energy identically to proposed, but exclude from cost calculation. If process cost savings were being sought, do we have an ECM like usual? If savings are not be sought, model identically in section 11 model? If they are not being sought, there is then no reason to establish an industry standard baseline for comparison etc? Thanks in advance.

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Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Thu, 11/14/2013 - 18:02

When doing a section 11 model you include the process energy, as it affects heating and cooling loads in the building, then you post-process it from the results. Process is modeled identically. A section 11 model is simply about determining 90.1 compliance through the performance (as opposed to prescriptive) path. It is not intended to be a methodology used to determine savings. There would be no need within CI to do any ECM unless you were pursuing an ID credit for energy savings not covered by the credits. Then I would follow the same guidelines used for ECMs in the BD+C version of LEED.