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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>It has been awhile since my last PV studies (they were for fixed
units, not tracking), but I did manage to account for everything within eQuest…
maybe what I can recall will help:<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'>Specific to the “how” to account for PV arrays’
effects on a roof or other building surface’s envelope loads, you really
can learn it all by just exploring the required inputs in detailed mode.  Create
a ‘dummy’ PV module with made up values under the utility tab, then
create an electric generator of the type photovoltaic array.  When you do
this you can explore all the variables regarding how they’re mounted (coverage/standoff/surface/tilted/etc). 
In doing so you can select the roof surface which is being shaded. 
Parametric runs for each variable can help you find a “sweet spot” specific
to your site for each of those variables.<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'>Alternatively, I just popped in and it looks like you could also
define all the geometries by first making building shades of the appropriate
geometry/orientation/etc. and then assigning those within the electric generator
window tabs…. Seems like extra work but then you could have them in your
3D view if that matters to you.<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'>Alan’s right to think of them first as a shade, but fixed
panels can be a little trickier when it comes to the building envelope loads. 
I can’t speak for other programs (and I don’t doubt there are
simpler options from a UI perspective), but I know eQuest does go so far as to
account for the degree of convection between your roof surface and panels (working
from weather data wind speed) and the rate of transfer through the panels,
beyond just accounting for direct solar loads.  For any faults with
complexity it does seem to do a sophisticated job of modeling PV
generation.  <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'>On a related note, I’d be somewhat surprised if any alternative
programs don’t allow you to define properties of the inverter equipment…
those losses can be a pretty big deal for any ROI study, iirc.  In any
case, Peter’s suggestion to use an outside program to work out the power
generation is not something I disagree with, but I just wanted to be suggest if
you go that route to consider what’s possible within eQuest to accurately
account for the arrays’ envelope effects. <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'>~Nick<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><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><img width=119 height=37 id="_x0000_i1030"
src="cid:image001.jpg@01CB7F48.D9B03DD0" alt="cid:489575314@22072009-0ABB"></span><b><span
style='font-size:11.0pt;font-family:"Stylus BT","sans-serif";color:#2D4D5E'><o:p></o:p></span></b></p>

<p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Stylus BT","sans-serif";
color:#2D4D5E'><o:p> </o:p></span></b></p>

<p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Stylus BT","sans-serif";
color:#2D4D5E'>NICK CATON, E.I.T.</span></b><b><span style='font-family:"Stylus BT","sans-serif";
color:#2D4D5E'><o:p></o:p></span></b></p>

<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Calibri","sans-serif";
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>olathe ks 66061<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>direct 913 344.0036<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>fax 913 345.0617<o:p></o:p></span></p>

<p class=MsoNormal><i><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>Check out our new web-site @ </span></i><span style='font-size:
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href="www.smithboucher.com" title="blocked::www.smithboucher.com"><span
style='font-size:10.0pt'>www.smithboucher.com</span></a></span><u><span
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</div>

<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>Peter
Hillermann<br>
<b>Sent:</b> Monday, November 08, 2010 11:33 AM<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>

</div>

</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'>You got me off on a tangent because I do love solar panels.
Remember that your panels are connected in series and that if one gets shaded
your entire row goes out, unless you are using micro inverters. You really need
to do a shading study and if you use REVIT this can be done easily. When using
a PV panel as a canopy or shading device you need to watch the summer time
shading on your wall. Typically a long shadow on the wall by parapet or cornice
might shade the panel, which is created by the noon day sun. Just push the
panel a little further off the wall.<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'>Best of luck to you and I hope it all works out.<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_x0020_1"
src="cid:image002.jpg@01CB7F48.D9B03DD0" alt="Description: e-signature"><img
border=0 width=92 height=90 id="Picture_x0020_2"
src="cid:image003.gif@01CB7F48.D9B03DD0" alt="Description: USGBC-Logo"><o:p></o:p></span></p>

</div>

<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 11:12 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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<div class=MsoNormal align=center style='text-align:center'>

<hr size=2 width="100%" align=center>

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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:image004.jpg@01CB7F48.D9B03DD0" alt="Description: e-signature"><img
border=0 width=92 height=90 id="Picture_x005f_x0020_2"
src="cid:image003.gif@01CB7F48.D9B03DD0" alt="Description: USGBC-Logo"><o:p></o:p></span></p>

</div>

<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>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>

</div>

</div>

<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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