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<p class=MsoNormal><span style='color:#1F497D'>The word “default” is
unfortunate; the credit language should read “at least”. If your project
is under 25% simply submit justification for why you are under 25%. The
best way to do that is with a table showing the assumed plug loads or other
process loads in the facility.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>So if you are over 25% no
worries; if you are under justify why you are under. Don’t add process
loads until you reach precisely 25% as some projects submitting for LEED have
done.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Regarding facilities with very
high process loads pursuing LEED certification, James is correct that this
poses a major problem which the USGBC will hopefully address this year.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:green'>Marcus Sheffer, Vice-Chair USGBC EA TAG</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:green'>Energy Opportunities, Inc/a 7group Company</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:#1F497D'>1200 E Camping Area Road, Wellsville, PA 17365</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:#1F497D'>717-292-2636, </span><span style='font-size:12.0pt;font-family:
"Times New Roman","serif";color:#1F497D'><a href="mailto:sheffer@sevengroup.com"><span
style='font-size:7.5pt;font-family:"Arial","sans-serif"'>sheffer@sevengroup.com</span></a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:#1F497D'><a href="http://www.sevengroup.com">www.sevengroup.com</a></span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";
color:#1F497D'> </span><span style='color:#1F497D'><o:p></o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>James Hess<br>
<b>Sent:</b> Wednesday, February 04, 2009 10:11 PM<br>
<b>To:</b> Demba Ndiaye; Anis Ben Ayed; <br>
<b>Cc:</b> Caleb Brantley<br>
<b>Subject:</b> Re: [Bldg-sim] Spam:Re: Process Loads?<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>FYI … our take on this issue is
to document the inputs that make up the misc equipment. In many cases, we
find that misc equipment, or “process loads” come nowhere close to 25% of total
costs.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>For example, we are currently
working on a library LEED project. We have very good estimates for the
number of computers going into the facility, and have estimates for students
with notebook computers, printer/copiers, breakroom equipment (refrigerator,
coffee pot, etc.), etc. You can get energy estimates for all that stuff
from EnergyStar’s website (they have lots of good data), or take your own
measurements of equipment over time like I have ( using simple inexpensive
equipment such as the “KillaWatt” plug in 120V plug load measurement device).<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Anyway, we document it and add
all that up </span><span style='font-family:Wingdings;color:#1F497D'>à</span><span
style='color:#1F497D'> comes to ~ 0.3 watts/SF, add a schedule into our energy
simulation program, and we come nowhere close to 25% of total energy costs.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>What would we do at that
point? We have good wattage inputs based on sound and reasonable
data. For example, a typical desktop computer will use ~ 65 watts on
average. A 22” flat panel LCD monitor will use ~ 45 watts. So, do
you throw all those numbers out and arbitrarily increase the “watts/SF” values
until process loads = 25%?<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Our interpretation is no.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Based on the following from LEED
NC 2.2<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><img border=0 width=592
height=298 id="Picture_x0020_1" src="cid:image001.jpg@01C98787.C8A1C730"> <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>We interpret this as we can use
less than 25% as long as we document, so we document. We document our
assumptions for process loads anyway so if it comes out less, we’re covered.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>We did have a project that was a
flight simulator building for the US Air Force. The simulator equipment
used a ton of energy </span><span style='font-family:Wingdings;color:#1F497D'>à</span><span
style='color:#1F497D'> energy costs > 75% of total building energy
costs. That blew the LEED savings out of the water. Even if you
assign the same load to the baseline, mathematically it’s very difficult to
achieve overall building energy savings of 14% if 75% of energy </span><span
style='font-family:Wingdings;color:#1F497D'>à</span><span style='color:#1F497D'>
you can’t do anything about. </span><span style='font-family:Wingdings;
color:#1F497D'>J</span><span style='color:#1F497D'>. In fact, we could
not.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Just some food for thought on
how we approach this area.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Hope this helps.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Regards,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>James<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><b><i><span style='font-size:10.0pt;font-family:"Times New Roman","serif";
color:#00B050'>James A. Hess, PE, CEM</span></i></b><span
style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#00B050'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif";
color:#1F497D'>Energy Engineer</span><span style='font-size:12.0pt;font-family:
"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif";
color:#1F497D'>TME, Inc.</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif";
color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif";
color:#1F497D'>Little Rock, AR</span><span style='font-size:12.0pt;font-family:
"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Times New Roman","serif";
color:#1F497D'>ph 501-666-6776</span><span style='font-size:12.0pt;
font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Times New Roman","serif";
color:#1F497D'>cell 501-351-4667<o:p></o:p></span></p>
<p class=MsoNormal><u><span style='font-size:7.5pt;font-family:"Times New Roman","serif";
color:blue'><a href="mailto:email@tmecorp.com">jhess@tmecorp.com</a></span><span
style='color:#1F497D'><o:p></o:p></span></u></p>
</div>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Demba
Ndiaye<br>
<b>Sent:</b> Wednesday, February 04, 2009 5:57 PM<br>
<b>To:</b> Anis Ben Ayed; bldg-sim@onebuilding.org<br>
<b>Subject:</b> Spam:Re: [Bldg-sim] Process Loads?<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-CA style='color:#1F497D'>The process energy
cost should compose at least 25% of the total energy cost.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-CA style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-CA style='color:#1F497D'>And yes, if you have
a total cost of $1,333 then the process energy should be >= $333.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-CA style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='color:#1F497D'>_____________<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Demba Ndiaye<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span lang=EN-CA style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Anis Ben
Ayed<br>
<b>Sent:</b> Wednesday, February 04, 2009 6:33 PM<br>
<b>To:</b> bldg-sim@onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] Process Loads?<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'>Hi All,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'>According to
the LEED NC v2.2 user manual, the default process energy cost is 25% of the
total energy cost for the baseline building. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'>Example:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'>The total
energy cost for a baseline building is T = (X + </span><b><span
style='font-size:10.0pt;color:red'>Process loads</span></b><span
style='font-size:10.0pt;color:#000099'>) <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'>Let’s assume
that X = $1000.00 = 75% * T<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'>To find the
energy cost for a baseline building, we solve for T<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'>Therefore T = $
1000.00 / 75% = $ 1333.33<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'>and the Process
loads’ cost = 25 % * $ 1333.33 = $ 333.33<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'>This is how I
understand the 25% process load calculation.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'>Can someone
please confirm this approach? <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'>Thank you,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#000099'>Anis <o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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