[Bldg-sim] LEED-NC v2.2 innovation in design credit for reduction in peak energy load

[Bishop, Bill]

Keeping in mind that the whole point of ID credits is to be
"innovative", I would personally like to see more effort going into
reduction of plug loads. We generally just shrug our shoulders and
assume there is little we can do about that big chunk of energy that we
model identically between our base and proposed models, but that is
perhaps the biggest opportunity for further energy savings once
envelope, lighting, HVAC and DHW use are optimized. Energy display
kiosks and related educational efforts can be attempted for ID credit,
though I'm not sure how often points are granted. I'd love to hear about
some of the creative ways to tackle plug loads that people have come up
with. Don't assume clients won't hear you out and be receptive next time
you present an innovative idea at a LEED Charrette.
 
William Bishop, PE, BEMP, 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 Sustainability - less is more.
________________________________

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Matthew W.
Higgins
Sent: Friday, July 09, 2010 11:30 AM
To: Paul Brooks; Robert Gengelbach; dlombard at earthlink.net;
bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] LEED-NC v2.2 innovation in design creditfor
reduction in peak energy load
 
On this same note, are there any worthwhile ID credits related to energy
or energy innovations? I'm sure I can look into it, but half the time
other ID credits see pretty far-fetched or too project-specific. I heard
mumblings a while back about pre-wiring/designing/stubbing or
space-allocation for future renewable energy (much like maximize open
space - although in this case reserving infrastructures and space for
equipment, not native plantings).
 
Much thanks
 
Matthew Higgins, ASHRAE-HBDP, LEED-AP
Energy Engineer
 
Bridgers & Paxton Consulting Engineers, Inc.
4600-C Montgomery Blvd. NE
Albuquerque, NM  87109
505-883-4111
505-888-1436  Fax
mwhiggins at bpce.com 
 
www.bpce.com
 
From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Paul Brooks
Sent: Friday, July 09, 2010 9:15 AM
To: Robert Gengelbach; dlombard at earthlink.net;
bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] LEED-NC v2.2 innovation in design credit for
reduction in peak energy load
 
Second on Robert's comment.  That is not enough to get an ID credit. 
 
________________________________

From: Robert Gengelbach <rgengelbach at sustainablemech.com>
To: dlombard at earthlink.net; bldg-sim at lists.onebuilding.org
Sent: Fri, July 9, 2010 10:53:42 AM
Subject: Re: [Bldg-sim] LEED-NC v2.2 innovation in design credit for
reduction in peak energy load


Reduction in energy relates directly to  EAc1 and can be accounted for
in that credit.  No ID credit would be available for reducing peak load.
 
Error! Filename not specified.
Robert Gengelbach, PE, LEED(r) AP
Sustainable Mechanical Design Associates, LLC
89 Monroe Center NW
Suite 302
Grand Rapids, MI 49503
P: (616) 776-9009
F: (616) 776-9010
C: (616) 570-2329
rgengelbach at sustainablemech.com
 
P Please print only if necessary
 
 
From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of
dlombard at earthlink.net
Sent: Friday, July 09, 2010 10:47 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] LEED-NC v2.2 innovation in design credit for
reduction in peak energy load
 

RE: innovation in design credit for reduction in peak energy load

 
Has anyone applied for and/ or gotten an innovation in design credit for
reduction in peak energy load for any version of LEED? We're working on
a project under LEED NC v2.2 and have significant reduction in lighting
load during peak hours by using solatubes.
Please provide any contact info and details if you can.
I appreciate the assistance. It seems like the energy model can be
manipulated to show the project savings during peak times and that would
be enough information needed for a submittal to the GBCI.
THANKS for being LEEDers!!
Debra Lombard
dlombard at earthlink.net
 
-----Original Message----- 
From: Vinay Devanathan 
Sent: Jul 9, 2010 8:53 AM 
To: Demba Ndiaye 
Cc: "bldg-sim at lists.onebuilding.org" 
Subject: Re: [Bldg-sim] Exhaust Fans in Baseline 

Demba and Vikram,

Alright. Thanks for the clarification.

Regards,
Vinay
On Thu, Jul 8, 2010 at 5:35 PM, Demba Ndiaye <Demba.Ndiaye at setty.com>
wrote:
Exhaust fan power is to be the same for both designs. You apportion the
remaining baseline fan power allowance between supply and return/relief.
 
______________
Demba NDIAYE
 
From: Vinay Devanathan [mailto:vinay.devanathan at gmail.com] 
Sent: Thursday, July 08, 2010 5:29 PM
To: Sami, Vikram
Cc: Demba Ndiaye; bldg-sim at lists.onebuilding.org

Subject: Re: [Bldg-sim] Exhaust Fans in Baseline
 
Vikram,

Thanks for your reply. 

So, does it mean I will have to model the exhaust fan in the baseline
model but in a fashion such that it consumes power proportionate to your
proposed design (supply, return and exhaust) but falls within the
Allowable Fan System bhp value of Appendix G. Am I right? 

Thank you.

Regards,
Vinay
On Thu, Jul 8, 2010 at 5:23 PM, Sami, Vikram
<Vikram.Sami at perkinswill.com> wrote:
I'm pretty sure that your fan power allowance in 90.1 is for all fan
energy (including exhaust). So for example if your baseline fan
allowance is 20kW (hypothetical), you will need to apportion that
allowance between supply and exhaust similar to your designed building. 
 
There was an extensive discussion about this around a year ago on this
list (check the archives).
 
Vikram Sami, LEED AP
Sustainable Design Analyst
1382 Peachtree St. NE, Atlanta, GA 30309
t: 404-443-7462    f: 404.892.5823       e: vikram.sami at perkinswill.com
www.perkinswill.com <http://www.perkinswill.com/> 
Perkins+Will.  Ideas + buildings that honor the broader goals of society
 
 
From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Vinay
Devanathan
Sent: Thursday, July 08, 2010 5:15 PM
To: Demba Ndiaye
Cc: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Exhaust Fans in Baseline
 
Demba,

Thanks for your quick reply.

Regards,
Vinay
On Thu, Jul 8, 2010 at 5:13 PM, Demba Ndiaye <Demba.Ndiaye at setty.com>
wrote:
Vinay, 
 
It is required to also model the exhaust fans in the Baseline. Use same
cfm and fan powers as in the Proposed.
 
______________
Demba NDIAYE
 
From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Vinay
Devanathan
Sent: Thursday, July 08, 2010 5:09 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Exhaust Fans in Baseline
 
Hello All,

Do we have to model the exhaust fans also according to Appendix G for a
Baseline model?
If yes, how should we design the cfm?

Thank you very much.

Regards,
Vinay
 

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