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William, for quick estimates I usually use <a class="moz-txt-link-abbreviated" href="http://www.pvselect.com">www.pvselect.com</a> which
uses high ambient+30C for its VMP calcs.<br>
<br>
<div class="moz-cite-prefix">On 2013/9/27 1:01, William Miller
wrote:<br>
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<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif"">Friends:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif"">Do
any of you know any good, on-line tools for calculating
temperature compensated string voltages? I looked but I
can’t find one. I have found some good articles on the
subject…<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif"">Lacking
one, I created an Excel spreadsheet. I am no expert in this
aspect of design so I am using it cautiously. If anyone
wants to check it out, here is a link. Any feedback is
appreciated: <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif""><a
moz-do-not-send="true"
href="http://www.millersolar.com/MillerSolar/Resources/_PV_String_calculator.xls">http://www.millersolar.com/MillerSolar/Resources/_PV_String_calculator.xls</a><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif"">As
always, thanks to all of you for the excellent input.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif"">William
Miller<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
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