[Bldg-sim] Really quick question

[John Aulbach]

I am doing EEM modeling, with both gas and electric effects on a multi family 
unit in Los Angeles.
 
One EEM is a lighting reduction. Another is weather stripping, which reduces 
infiltration.
 
I add up the EEMs individually and get a gas savings (negative from the lighting 
reduction obviously). I add them together in a COMBO run (where they 
interact) and the gas savings goes UP !!
 
WHY !!!!
 
John R. Aulbach, PE, CEM
Senior Energy Engineer

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www.ptrenergy.com| jaulbach at ptrenergy.com


      
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