[Bldg-sim] LEED 2009 Modelling - Electric Vehicles and Rainwater Cisterns

[Kevin Kyte]

Aaron,

I would think you would include these measures as an external load directly on the meter.  Each one individually is probably contributing to its own LEED point.  However, it does raise questions on how one could benchmark such measures.  For the electric vehicle charging stations, what if an on-site gas station was theorized as a base case?  Sounds like a lot of extra work, and what takes more energy to make, coal or gasoline?  Also, the rainwater pump is used for toilet rooms or for gardening?  Last I checked pumping energy to water flowers was not included, though I suppose it probably is not.

Kevin

From: Aaron Smith [mailto:asmith at mreng.ca]
Sent: Tuesday, August 09, 2011 10:21 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] LEED 2009 Modelling - Electric Vehicles and Rainwater Cisterns

Hi,

I'm putting together a LEED 2009 Submission and the rules now state that "Both the baseline building model and the proposed model must cover all building energy components..." (pg. 286 of LEED Canada 2009).

I have no trouble including computer equipment, elevators and exterior lights but we also have a rainwater cistern pump and electric vehicle charging stations.  I'm not sure if the electric vehicles should be considered "building energy components".  As well, both technologies actually save energy elsewhere (gasoline/diesel and water utility pumping power) so I don't think we should be penalized in our % energy cost savings by adding these two energy uses to both reference model and proposed model.  Any thoughts on these?

Cheers,
Aaron

Aaron Smith, P.Eng
LEED(r) AP BD+C, M-ASHRAE, Mechanical Engineer
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