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<font size=3>Joel:<br><br>
My understanding is that you wish to calculate inter-row spacing for
non-south facing arrays. I modeled an example of this scenario in
3D over a time period and created a video file. I converted the
aforementioned 97 MB file to a WMV and trimmed the file size just a
little (to ~436 KB). The file can be found at:
<a href="http://millersolar.com/case_studies/case_studies.html" eudora="autourl">http://millersolar.com/case_studies/case_studies.html</a>
Click on Shading Study.<br><br>
I modeled two identical, two row installations. One is facing due
south, one is 45 degrees east of south. The modeling date is winter
solstice and the time period is from 8:00 AM to 4:00 PM. The
location is right here in sunny San Luis Obispo County.<br><br>
If you get a chance to view the animation, you will note that the
inter-row shading is not significantly different between the south facing
rows and the non-south facing rows. One might even decide that the
solution for a south facing installation is an adequate solution for any
installation where all other parameters are equal. I will verify
this mathematically (in my free time).<br><br>
Thanks for the question. I love thinking about these
problems. (Tell the kids that the math is actually
useful.)<br><br>
William Miller<br><br>
PS: The animation was created in Microstation, saved as an AVI and
converted to a WMV file in Pinnacle Studio. I apologize that the
resolution is not great -- I am still learning the software, even after
all these years.<br><br>
Wm<br><br>
<br><br>
<br><br>
At 06:28 PM 5/11/2009, you wrote:<br>
</font><blockquote type=cite class=cite cite><font face="arial" size=2>Ken,<br>
</font><font size=3> <br>
</font><font face="arial" size=2>Thank you. This website and software
gives the sun altitude and azimuth. I seem to recall 3D graphic dynamic
software where you input the site longitude and latitude, solar panel
tilt angle and the north side height and the result would be a shade
pattern shown for each hour. Does anyone have such a program?<br>
</font><font size=3> <br>
</font><font face="arial" size=2>Best regards,<br>
Joel Davidson<br>
</font><blockquote type=cite class=cite cite><font size=3>----- Original
Message ----- <br>
<b>From:</b> <a href="mailto:khulet@revolutionearth.com">Engineering
Services Co.</a> <br>
<b>To:</b>
<a href="mailto:re-wrenches@lists.re-wrenches.org">RE-wrenches</a> <br>
<b>Sent:</b> Monday, May 11, 2009 11:14 AM<br>
<b>Subject:</b> Re: [RE-wrenches] Spacing between solar arrays<br><br>
Try this Joel. <br><br>
<a href="http://www.susdesign.com/">http://www.susdesign.com/</a><br><br>
<br>
Ken Hulet<br>
Engineering Services Co.<br>
204 S. Main St.<br>
Blanchardville, WI 53516<br>
608.523.3726<br><br>
<a href="http://www.revolutionearth.com">http://www.revolutionearth.com</a><br>
visit us at River Valley Trading Co.<br>
<a href="http://www.rivervalleytrading.com">http://www.rivervalleytrading.com</a><br><br>
<br><br>
<br><br>
On May 11, 2009, at 11:39 AM, Joel Davidson wrote:<br><br>
<blockquote type=cite class=cite cite>Wrenches,<br>
<br>
Someone posted a website or calculation for determining the spacing between solar arrays, but I can not find it. It is easy to get the spacing from a drawing when the array faces true south, but when the array faces southeast or southwest is what we need to know. Please help. Thank you very much.<br>
<br>
Joel Davidson</font></blockquote></blockquote></blockquote></body>
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