[BLDG-SIM] LEED energy saving calculations for Industrial Facility

[Jon McHugh]

Marcus,
 
I am just going to have to show my ignorance.  If LEED is trying to
encourage process efficiency  is there then a baseline energy
consumption by industry type that is the basis of the LEED comparison?
 
Until the baselines are developed, the current case is that only low
energy intensity industries need apply for a LEED rating on their
building.
 
BTW I agree with the concept of getting a credit relative to a
benchmarked process energy consumption.
 
Jon

________________________________

From: Marcus Sheffer [mailto:sheffer at sevengroup.com] 
Sent: Thursday, April 12, 2007 4:19 PM
To: BLDG-SIM at gard.com
Cc: yjiang_mit at yahoo.com; Jon McHugh
Subject: RE: [BLDG-SIM] LEED energy saving calculations for Industrial
Facility


Jon,
 
This is a common response we hear from the design community.  The USGBC
EA TAG felt however that if we are trying to address energy usage then
all energy usage should be addressed.  The pound of CO2 generated per
kWh is the same whether it is the result of cooling or running a
conveyance system.  As we are all aware there certainly are energy
saving opportunities for these loads.
 
It is possible to document savings for these loads however these are
currently considered on a case-by-case basis.  We hope to develop
baselines for many of these process loads where possible so we can
encourage both designers and owners to address all energy usage.  
 
Marcus Sheffer
Energy Opportunities, Inc/a 7group Company
1200 E Camping Area Road, Wellsville, PA  17365
717-292-2636, sheffer at sevengroup.com <mailto:sheffer at sevengroup.com> 
www.sevengroup.com
 
________________________________

From: Jon McHugh [mailto:Jon.McHugh at h-m-g.com] 
Sent: Thursday, April 12, 2007 5:52 PM
To: sheffer at sevengroup.com; BLDG-SIM at gard.com
Cc: yjiang_mit at yahoo.com
Subject: RE: [BLDG-SIM] LEED energy saving calculations for Industrial
Facility
 
Marcus,
 
I think a reasonable solution would be to include the heat loads from
machinery in the simulation but not the energy required to operate the
process load.  This can be accomplished by putting the process loads on
a separate "meter" in the simulation.  The energy required to operate
the process load is ignored by the other building meters for cooling and
lighting, but the heat addition for the process loads are accounted for.
 
In this way,  the LEED certification is for the building not the
process.
 
Many of he process measures for machine shops: compressed air controls,
fixing air leaks process, interlocking ventilation with welding or
painting operations, HVLP paint spray guns etc.  are not defined by the
building designer.   
 
 
 
Sincerely,
 
Jon McHugh, PE
________________________________

From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Marcus
Sheffer
Sent: Thursday, April 12, 2007 2:11 PM
To: BLDG-SIM at gard.com
Cc: yjiang_mit at yahoo.com
Subject: [BLDG-SIM] LEED energy saving calculations for Industrial
Facility
Under LEED v2.2 you must include all of the process loads and equipment.
 
The post-processing you describe was used under LEED v2.1 and is not
allowed under v2.2.
 
You are correct that the opportunity for savings will be less in this
type of facility as a result.  The USGBC has recognized that this is an
issue and is working on ways to address it.
 
Any thoughts are welcome.
 
Marcus Sheffer - Vice Chair USGBC EA TAG
Energy Opportunities, Inc/a 7group Company
1200 E Camping Area Road, Wellsville, PA  17365
717-292-2636, sheffer at sevengroup.com
www.sevengroup.com
 
 
-----Original Message-----
From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Yi Jiang
Sent: Thursday, April 12, 2007 4:17 PM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] LEED energy saving calculations for Industrial
Facility
 
We are working on a LEED NC 2.2 project to predict
energy savings with eQuest for a 200,000 sf machinery
workshop facility. 
 
One question we have is whether to include the process
loads in the workshop. We feel that it makes the most
sense to include the heat generated from the process
equipment as internal cooling load and treated by HVAC
systems. However, the electrical power specifically to
process equipment should not be included. For such a
machinery facility, the electrical power to process
equipment constitutes 50% of total electricity
consumption, and can significantly reduce the total
energy saving prediction by 10%. Has anyone has
experiences with such a industrial facility? Thanks
 
--Yi    
 
 
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