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CS-2009 EAp2: Minimum Energy Performance

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Basement Levels in ASHRAE 90.1 Energy Models

September 1, 2016

Ciaran McCabe

Director
Passive Dynamics Sustainability Consultants

LEEDuser Basic Member

12 thumbs up

September 1, 2016

Hi,

I am modelling a 6 storey office building which also has a basement car park. The basement car park is is naturally ventilated and also consists of a few small storage rooms, IT rooms and a security room. Under this current LEED effort we will be construction some showers in the basement. My question is should I also assign the ASHRAE Baseline system to this basement level of the building in the ASHRAE 90.1 energy model ?

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Marcus Sheffer

LEED Fellow
7group / Energy Opportunities

LEEDuser Expert

5907 thumbs up

September 1, 2016 - 10:19 am

Sounds like you have some conditioned spaces so yes.

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Ciaran McCabe

Director
Passive Dynamics Sustainability Consultants

LEEDuser Basic Member

12 thumbs up

September 2, 2016 - 9:41 am

Thanks Marcus.

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FAQs about EAp2:

Is it acceptable to model a split-type AC with inverter technology compressor as a heat pump, like modeling VRF?

A portion of our building envelope is historic. Can we exclude it from our model?

For an existing building, do I need to rotate the model?

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Our local code references ASHRAE 90.1-2010. Should I use that for my documentation, or 90.1-2007?

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