[Equest-users] [Bldg-sim] LEED Process Energy Reduction

[cic at jci.com]

Team,

The project shows the following energy consumption/cost distribution 
details.
Space Cool - 27%
Heat Reject. -1%
Vent. Fans -9%
Pumps & Aux.-6%
Ext. Usage -0%
Misc. Equip.-38% (office equipment's, lift,elevators, fire water pumping 
system loads,etc)
Area Lights -19%
Question1:-
The proposed  model shows savings in all areas except Misc equipment's. 
However we are not getting the required savings due to large Misc 
equipment loads. 
We are thinking of altering the schedule of Misc equipment by providing 
some control logic/best practices to get the required savings. 
Is it acceptable ? If yes, what needs to be done in terms of 
documentation?.

Question2:-
Is it acceptable by the LEED if the process/misc energy is kept at 25% 
irrespective of actual Misc loads?.

Thanks for your valuable input.

Regards,
Kathiresan




Mark Prince <mprince at aeieng.com> 
Sent by: bldg-sim-bounces at lists.onebuilding.org
08/06/2010 03:02 AM

To
"bldg-sim at lists.onebuilding.org" <bldg-sim at lists.onebuilding.org>
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Subject
Re: [Bldg-sim] LEED Process Energy Reduction






Jeremy,
 
Did you file a CIR and get approval from USGBC before pursuing this, or 
did you just assume USGBC would accept your logic?  From where I was 
raised, modifying process loads is forbidden territory.  I’m thinking it 
would be best to get CIR approval first.
 
Glad this worked out for you though.
 

Mark Prince  LEED® AP 
Mechanical
 
AEI | AFFILIATED ENGINEERS, INC. 
5802 Research Park Blvd. | Madison, WI  53719

P: 608.441.6668 | F: 608.238.2614  
mprince at aeieng.com  |  www.aeieng.com 
 
From: bldg-sim-bounces at lists.onebuilding.org 
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Jeremy Poling
Sent: Thursday, August 05, 2010 4:13 PM
To: Seth P. Spangler; bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] LEED Process Energy Reduction
 
We have documented this on two projects – in both cases we had to document 
what the industry standard for the process would be and then how ours was 
more efficient.  One was related to conveyor energy usage and the process 
integrator documented the expected savings based on numerous other 
installations they had done over the past few years.  The second one was 
the process energy associated with refrigeration – through team member 
networking we surveyed approximately 200 owners of buildings of a similar 
scope and use to document the baseline refrigeration system that a 
building of that type would use.  Then we documented how our system was 
different and more efficient.
 
In both cases this was approached with the alternative calculation 
methodology of ASHRAE 90.1 and that section of the LEED template.  Hope 
that helps!
 
JEREMY R. POLING, PE, LEED AP
Associate Vice President,
Senior Sustainability Analyst
Strategic Services
Site Solutions | Operations | Sustainability

EPSTEIN

Epstein is a firm believer in sustainability. We ask that you please 
consider the environment before printing this e-mail.
 
From: bldg-sim-bounces at lists.onebuilding.org 
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Seth P. 
Spangler
Sent: Thursday, August 05, 2010 4:04 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] LEED Process Energy Reduction
 
Hello All,
 
I am currently working on several process intensive buildings. The 
mechanical systems and corresponding control strategies that are being 
designed are ideal for achieving 30%-40% savings in a standard office 
building but I’m afraid that the common denominator, the high process 
loads, will significantly reduce my projects savings. Has anyone 
successfully submitted for a reduction in process load. If so, what/how 
did you document the reduction?
 
Thanks for your time.
 
Seth Spangler, LEED® AP 
 
RMF Engineering, Inc 
Ph: (843) 971-9639 ext:1497
Fax: (843) 971-9641 
sspangle at rmf.com
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