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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">Alternately you could do your PV calcs in RETscreen – its really easy to use and quick. You need Microsoft XL to run it though.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">Regarding modeling the roof reflective – just create an external building shade to sit over the area you need.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray">Vikram Sami</span></b><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray">, LEED AP<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray">Sustainable Design Analyst<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray">1382 Peachtree St. NE, Atlanta, GA 30309<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray">t: 404-443-7462 f:
</span><span lang="ES" style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray">404.892.5823 </span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray"> e: vikram.sami@perkinswill.com
</span><span style="font-size:11.0pt;font-family:
"Calibri","sans-serif";color:#1F497D"><a href="http://www.perkinswill.com/"><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray;text-decoration:
none">www.perkinswill.com</span></a></span><span style="font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:3.0pt;text-autospace:none"><b><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray">Perkins+Will.</span></b><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray">
</span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#ADD425">Ideas + buildings that honor the broader goals of society</span><span style="font-size:
9.0pt;font-family:"Arial","sans-serif";color:green"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
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<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""> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Dakota Kelley<br>
<b>Sent:</b> Monday, November 08, 2010 5:06 PM<br>
<b>To:</b> alanc@dwcei.com; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] FW: Solar panels<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">Alan,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">eQUEST can model the power generation as well as the roof shading. You need to create (1) an electric generator, which is the inverter, and (2) the PV array.
Go to the Utility & Economics tab, right click on the project name, and “create photovoltaic module” to define the array. Do the same to create the inverter, but choose “create electric generator” and specify the type as “photovoltaic array”. I would recommend
getting the data sheets for the inverter and panels before starting; eQUEST requires specifics. However, most of the info should be readily available on the product data sheets.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">You link the array to the inverter(s) through the electric generator properties window, an example of which I have attached. On the same tab you can define
the mounting conditions to take shading credit. If your array spans multiple roof surfaces, you’ll want to create a building shade representing the array’s footprint, and then mount the array on that building shade. You can tweak the shade’s transmittance,
if desired.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">I’ve never done a direct comparison to PV Watts, but both use TMY2 weather data for radiation input. eQUEST only models fixed arrays, but it provides much
more control over the array’s metrics compared to PV Watts. The added control can be overkill if a quick estimate is sufficient for the project’s needs, but for a PV system that has been fully designed, I would prefer to model it in eQUEST. Check the PS-C
report to get the array’s annual output.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in;text-indent:27.0pt"><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Book";color:black">DAKOTA KELLEY
</span><span style="color:black"><o:p></o:p></span></b></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:27.0pt"><span style="font-size:10.0pt;font-family:"Franklin Gothic Book";color:black">Project Designer | Energy Analyst<o:p></o:p></span></p>
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color:black">
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Franklin Gothic Book";
color:black"> </span><span style="font-size:8.0pt;font-family:"Franklin Gothic Book";color:black">Office: 214.744.6199
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Franklin Gothic Book";
color:black"> Cell: 214.280.3825<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Franklin Gothic Book";
color:black"> Fax: 214.744.0770</span><span style="font-size:10.0pt;font-family:"Franklin Gothic Book";
color:black">
<o:p></o:p></span></p>
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color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Franklin Gothic Book";
color:black"><a href="http://www.teliospc.com/">http://www.teliospc.com
</a> 3535 Travis St. Suite 115<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Franklin Gothic Book";
color:black"><a href="mailto:dakotak@teliospc.com">dakotak@teliospc.com</a></span><span style="font-size:10.0pt;font-family:"Franklin Gothic Book";color:black">
</span><span style="font-size:8.0pt;font-family:"Franklin Gothic Book";
color:black">Dallas, TX 75204</span><span style="font-size:10.0pt;font-family:
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<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Franklin Gothic Book";
color:#3333FF">| MEP ENGINEERING · ENERGY MODELING · LEED CONSULTATION · COMMISSIONING |<o:p></o:p></span></p>
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color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">F</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">r<b>om:</b> Alan Crittendon [mailto:alanc@dwcei.com]
<br>
<b>Sent:</b> Monday, November 08, 2010 10:12 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] FW: Solar panels<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue">Is there a way to put power generation into equest? I was really just thinking about the shade portion but this would be great too!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="font-family:"Arial Narrow","sans-serif";
color:navy">Alan Crittendon, PE, LEED AP</span><span style="font-size:10.0pt;
color:navy"><br>
</span><span style="font-family:"Swis721 Blk BT","sans-serif";color:navy">DW Collier Engineering, Inc.</span><span style="color:blue"><o:p></o:p></span></p>
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<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""> Peter Hillermann [mailto:peterh@westallarchitects.com]
<br>
<b>Sent:</b> Monday, November 08, 2010 9:59 AM<br>
<b>To:</b> alanc@dwcei.com; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> RE: [Equest-users] Solar panels</span><o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">Alan,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">To be honest there really is no good way to model the solar panels. PV watts is really good because it calculates panels all over the state using averages.
It also depends on what system you are using. If you use a roof mount system that has a specific tilt you get a certain efficiency. If you use a system has trackers it becomes more efficient but the price might go up. Different states have different tilt angles
to make their panels more efficient with the better degree of tilt. The thing I would do if you wanted to put it in eQuest is use PV watts calculator and apply it as a direct load that gives electricity to the building.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">PS: check to see what inverter you are using because different inverters have different efficiencies.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="DE" style="font-size:10.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt">PETER HILLERMANN<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="DE" style="font-size:10.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="font-size:8.0pt;font-family:"ITC Avant Garde Gothic Demi";
color:#1F497D;letter-spacing:1.0pt"><a href="mailto:peterh@westallarchitects.com">peterh@westallarchitects.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="font-size:10.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height:75%"><b><span lang="DE" style="font-size:
14.0pt;line-height:75%;font-family:"ITC Avant Garde Std Md";color:#1F497D;
letter-spacing:1.0pt">westall</span></b><span lang="DE" style="font-size:14.0pt;
line-height:75%;color:#1F497D;letter-spacing:1.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:4.0pt;line-height:75%"><b><span style="font-size:14.0pt;line-height:75%;font-family:"ITC Avant Garde Std Md";
color:#1F497D;letter-spacing:1.0pt">architects</span></b><span style="font-size:14.0pt;line-height:75%;font-family:"Calibri","sans-serif";
color:#1F497D;letter-spacing:1.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt">3404 pierce drive<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt">chamblee, georgia 30341<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt">o 770.458.4113<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt">f 770.458.5352<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt">c 678.898.2936<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"ITC Avant Garde Gothic Demi";
color:#1F497D;letter-spacing:1.0pt">westallarchitects.com</span><span style="color:#1F497D;letter-spacing:1.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><img border="0" width="160" height="87" id="Picture_x005f_x0020_1" src="cid:image006.jpg@01CB7F70.49B3B590" alt="Description: e-signature"><img border="0" width="92" height="90" id="Picture_x005f_x0020_2" src="cid:image007.gif@01CB7F70.49B3B590" alt="Description: USGBC-Logo"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
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<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""> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Alan Crittendon<br>
<b>Sent:</b> Monday, November 08, 2010 8:43 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Solar panels<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">I need to have about 5000ft of roof space dedicated to solar panels on a 41000ft roof. How can I model 5000ft of roof to be 100% reflective?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Arial Narrow","sans-serif";
color:navy">Alan Crittendon, PE, LEED AP</span><span style="font-size:10.0pt;
color:navy"><br>
</span><span style="font-family:"Swis721 Blk BT","sans-serif";color:navy">DW Collier Engineering, Inc.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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