[Equest-users] Would cheaper fuel be credited?

[Bishop, Bill]

Rick,
If you are doing Appendix G modeling for EAc1 then the energy rates are supposed to be the same for the baseline and proposed runs. See pages G-2 to G-3 of the 90.1-2004 and 2007 User’s Manuals. “Individual building owners or designers may choose to optimize their buildings to take advantage of special rates, but building performance ratings require that the same rate be used for both runs.”
Also, page G-22 (User’s Manual) states, “If the proposed building has electric heat so does the baseline building, and if the proposed building has gas, oil or propane (any fossil fuel), the baseline building has the same heating source.” Even though bamboo is not a “fossil fuel”, the intent is clear that the same heating source should be used for both models.
Regards,
 
William Bishop, EIT, LEED(r) AP | Pathfinder Engineers & Architects LLP
Mechanical Engineer
 
134 South Fitzhugh Street
Rochester, NY 14608
T: (585) 325-6004 Ext. 114
F: (585) 325-6005
wbishop at pathfinder-ea.com
www.pathfinder-ea.com
P Please strive to live sustainably.
________________________________

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of YinRic
Sent: Monday, September 07, 2009 2:18 AM
To: Equest User
Subject: [Equest-users] Would cheaper fuel be credited?
 
Hi Users,
 
In a project, the client wants to use a cheap local fuel (bamboo pellet, rapidly renewable) to reduce annual energy cost and score high on EAc1. I am wondering if in baseline, the fuel must also be bamboo pellet or could be something else, say, natural gas, the price of which is higher per thermal unit? I do not seem to find where in ASHRAE 90.1-2004 dictates that in baseline and proposed, the fuel must be the same. Any comments are appreciated. 
 
Thanks,
Rick, PE, LEED AP  
________________________________

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