<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:12pt"><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt;">I agree with Vaibhav.<br><br><span style="text-decoration: underline;">Though, the following comment is for someone who does not make it to 25% as proposed in the design</span>: In the past, for LEED 2.2 we have quantified the probable diversity of the receptacles to a reasonable detail. We found that no matter what the stretch of imagination the building will not exceed 13% of total energy cost. Having shown our case, we earned the credits we sought for. "<span style="font-style: italic;">God is in the details</span>" -- or probable details (shown in an exception calculation)!<br><br>Best regards,<br>Neeraj <br><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">----- Original Message ----<br>From: Vaibhav Potnis
<vaipotnis@hotmail.com><br>To: BLDG-SIM@gard.com<br>Sent: Monday, March 5, 2007 4:32:59 PM<br>Subject: [BLDG-SIM] Process Loads and LEED<br><br><div style=""><p>Great discussion on the LEED aspects of Process Loads.</p>
<p>However I wanted to point out that for a LEED energy analysis, process energy has to be maintained at 25% of total energy cost of the Baseline Building Performance ( LEED- 2.2 Ref Guide page 182). I prefer taking exceptional calculatins for process energy to simplify the calculations as well as the review.</p>
<p>Hope this helps.<br></p>
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<p>Vaibhav Potnis <br><a rel="nofollow" target="_blank" href="http://www.greenbuildingservices.com">www.greenbuildingservices.com</a></p>
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<p><font style="font-size: 11px; font-family: tahoma,sans-serif;">From: <i>"Brandon Nichols" <BrandonN@Hargis.biz></i><br>Reply-To: <i>BrandonN@Hargis.biz</i><br>To: <i><BLDG-SIM@gard.com></i><br>Subject: <i>[BLDG-SIM] Process Loads and LEED</i><br>Date: <i>Mon, 5 Mar 2007 11:05:04 -0800</i><br><br></font></p>
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<div dir="ltr" align="left"><span class="081323618-05032007"><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2">Varkie,</font></font></span></div>
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<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2"><span class="971281318-05032007"></span></font> </font></div>
<div><span class="971281318-05032007"><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font face="Lucida Console"><font color="#0000ff"><font size="2">Something we have been noticing in schools lately is <span class="081323618-05032007">a </span>high receptacle load, which we believe is attributable to increased usage of computers<span class="081323618-05032007">, approaching and in some areas exceeding 5 W per square foot -- the kinds of loads I used to figure for "technology intensive" office areas just a few years ago.</span></font></font></font></font></span></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2"><span class="971281318-05032007"></span></font> </font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2"><span class="971281318-05032007">In researching an energy question for a school today, I came across <span class="081323618-05032007">this web page and </span>case study which I thought was relevant to your question<span class="081323618-05032007">:</span></span></font></font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2"><span class="971281318-05032007"><span class="081323618-05032007"></span></span></font> </font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2"><span class="971281318-05032007"><span class="081323618-05032007"><a rel="nofollow" target="_blank" href="http://www.energystar.gov/index.cfm?c=power_mgt.pr_power_management">http://www.energystar.gov/index.cfm?c=power_mgt.pr_power_management</a></span></span></font></font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2"><span class="971281318-05032007"><span class="081323618-05032007"></span></span></font> </font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font size="-0"><span class="971281318-05032007"><a rel="nofollow" target="_blank" href="http://www.energystar.gov/ia/products/power_mgt/North_Thurston_Case_Study.pdf"><font face="Lucida Console"><font size="2">http://www.energystar.gov/ia/products/power_mgt/North_Thurston_Case_Study.pdf</font></font></a></span></font></font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2"><span class="971281318-05032007"></span></font> </font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2"><span class="971281318-05032007">Essentially they summarize how<span class="081323618-05032007">, by consistently implementing </span>power management on computer monitors and CPUs using a simple utility program, <span class="081323618-05032007">a</span> cost savings of an estimated $15-$30 per computer per year<span class="081323618-05032007"> can be realized (on personal workstations I would add, not systems required to be continuously online)</span>. Multiplied across thousands of computers, the bottom line annual savings can be substantial.</span></font></font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2"><span class="971281318-05032007"></span></font> </font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font face="Lucida Console"><font color="#0000ff"><font size="2"><span class="971281318-05032007"><span class="081323618-05032007">How to account for this in energy modeling software I have a general idea:</span></span></font></font></font></font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font face="Lucida Console"><font color="#0000ff"><font size="2"><span class="971281318-05032007"><span class="081323618-05032007"></span></span></font></font></font> </font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font face="Lucida Console"><font color="#0000ff"><font size="2"><span class="971281318-05032007"><span class="081323618-05032007">1) Assign the baseline receptacle load to "occupied hours"; e.g. 5 W/SF 'always on'</span></span></font></font></font></font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font face="Lucida Console"><font color="#0000ff"><font size="2"><span class="971281318-05032007"><span class="081323618-05032007">2) Assign a diversified receptacle load schedule to the alternate analyses</span></span></font></font></font></font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font face="Lucida Console"><font color="#0000ff"><font size="2"><span class="971281318-05032007"><span class="081323618-05032007"></span></span></font></font></font> </font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font face="Lucida Console"><font color="#0000ff"><font size="2"><span class="971281318-05032007"><span class="081323618-05032007">But quantifying the diversified load schedule is the hard part -- it will no doubt vary significantly depending on the occupancy. Though not fully developed, this may provide a starting point for one method to reduce process electrical loads in a LEED analysis.</span></span></font></font></font></font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font face="Lucida Console"><font color="#0000ff"><font size="2"><span class="971281318-05032007"><span class="081323618-05032007"></span></span></font></font></font> </font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2"><span class="971281318-05032007"><span class="081323618-05032007"><span class="518430319-05032007"></span></span></span></font> </font></div>
<div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2"><span class="971281318-05032007"><span class="081323618-05032007"><span class="518430319-05032007">Regards</span></span></span></font></font></div></span></div>
<div dir="ltr" align="left"><span class="081323618-05032007"><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2"></font></font></span><font style="font-size: 11px; font-family: tahoma,sans-serif;"> </font></div><font style="font-size: 11px; font-family: tahoma,sans-serif;"><font color="#0000ff" face="Lucida Console" size="2">Brandon Nichols, PE<br>Mechanical<br>HARGIS ENGINEERS<br>600 Stewart St<br>Suite 1000<br>Seattle, WA 98101<br>d | 206.436.0400 c | 206.228.8707<br>o | 206.448.3376 f | 206.448.4450<br><a rel="nofollow" target="_blank" href="http://www.hargis.biz/">www.hargis.biz</a><br></font><br>
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<font style="font-size: 11px; font-family: tahoma,sans-serif;"><font face="Tahoma" size="2"><b>From:</b> BLDG-SIM@gard.com [mailto:BLDG-SIM@gard.com] <b>On Behalf Of </b>Varkie Thomas<br><b>Sent:</b> Monday, March 05, 2007 7:14 AM<br><b>To:</b> BLDG-SIM@gard.com<br><b>Subject:</b> [BLDG-SIM] Process Loads and LEED<br></font><br></font></div>
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<p><font style="font-size: 11px; font-family: tahoma,sans-serif;">LEED-NC Version 2.2 page 173 "Optimize Energy Performance" states "Demonstrate a <strong><font color="red">percentage</font></strong> improvement in the proposed building performance -- " and "For the purpose of this analysis, process energy is considered to include, but is not limited to, office and general miscellaneous equipment, computers, elevators & escalators, kitchen cooking & refrigeration, laundry washing & drying --- "</font></p>
<p><font style="font-size: 11px; font-family: tahoma,sans-serif;">On page 174 "For EA Credit 1, process loads shall be identical for both the baseline building performance and the proposed building performance"</font></p>
<p><font style="font-size: 11px; font-family: tahoma,sans-serif;">Assuming the same space process load is used in the baseline and proposed, then a building with a receptacle load density of say 1.0 w/sf will produce a much greater percent savings compared to the same building with a receptacle load density of say 6 w/sf.</font></p>
<p><font style="font-size: 11px; font-family: tahoma,sans-serif;">Page 173 "must comply with the mandatory provisions (Sections --- ) in Standard 90.1-2004 (without amendments)" There is no mention of Standards 62 for ventilation & occupancy density or Standard 55 for indoor comfort conditions. Does this mean that the baseline can be based on the proposed ventilation, occupancy density and indoor comfort conditions? According to Standard 62-2004 the occupancy density for general office space is 200 sf/P (from 142 sf/P in 62-2001 and I think 100 sf/P earlier). This produces a low percent system outdoor air and energy conservation measures such as "occupancy based ventilation" and "outdoor air to relief air heat recovery" have little effect. Std 62-2004 (also Std 90.1-2004 for lighting) provides design criteria for a limited number of space types such as a prison cell (improved from 50 sf/P & 20 cfm/P in
62-2001 to 40 sf/P & 10 cfm/P in 62-2004) . This makes it difficult to determine baselin e conditions using Std 62.</font></p>
<p><font style="font-size: 11px; font-family: tahoma,sans-serif;">I am looking at a financial institution building with high occupancy and receptacle load densities.</font></p><pre><font style="font-size: 11px; font-family: tahoma,sans-serif;">==================<br>You received this e-mail because you are subscribed<br>to the BLDG-SIM@GARD.COM mailing list. To unsubscribe<br>from this mailing list send a blank message to<br>BLDG-SIM-UNSUBSCRIBE@GARD.COM<br></font></pre><pre><font style="font-size: 11px; font-family: tahoma,sans-serif;">=====================================================You received this e-mail because you are subscribed<br>to the BLDG-SIM@GARD.COM mailing list. To unsubscribe<br>from this mailing list send a blank message to<br>BLDG-SIM-UNSUBSCRIBE@GARD.COM<br></font></pre><font style="font-size: 11px; font-family: tahoma,sans-serif;"><br></font></blockquote></div><br clear="all"><SPAN style="width:100%;height:2px;border-bottom:1px solid
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