David,<br><br>This is for grid-tied carport structures which may be installed in several locations on the East Coast where the minimum temperature varies from 5 degrees F to -20 degrees F and I would like to maintain one standard system for each situation.  Three strings of 12 modules fit the carport exactly and work well to 5 degrees but then the cold puts the voltage over 600.  I could do 4 strings of 9 but then the high temperatures in summer cause the inverters to drop out due to low voltage.<br>
<br>I could do three strings of 11 and have 3 dummy panels but would like to avoid this kluge.<br><br>Thanks!<br><br>Lee<br><br><div class="gmail_quote">On Mon, Jan 10, 2011 at 5:44 PM, David Katz <span dir="ltr"><<a href="mailto:dkatz@asis.com">dkatz@asis.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">

  
    
  
  <div bgcolor="#ffffff" text="#000000">
    Lee,<br>
    We never had enough interest to warrant getting a UL listing on the
    product. Is it for grid-tie or off-grid?<br>
    David<br>
    <br>
    <div>
      
      
      
      
      
      
      
      
      <div>
        <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;">David Katz</span><span style="font-family: Arial;"></span></p>
        <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;">Founder & CTO</span><span style="font-family: Arial;"></span></p>
        <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;">AEE Solar</span><span style="font-family: Arial;"></span></p>
        <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;">T(707) 825-1200</span><span style="font-family: Arial;"></span></p>
        <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;">C(831) 325-9582</span><span style="font-family: Arial;"></span></p>
        <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;">F(707) 825-1202</span><span style="font-family: Arial;"></span></p>
        <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;"><a href="mailto:david@aeesolar.com" target="_blank">dkatz@aeesolar.com</a></span><span style="font-family: Arial;"></span></p>
        <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;"><a href="http://www.aeesolar.com/" target="_blank">www.aeesolar.com</a></span><span style="font-family: Arial;"></span></p>
        <p class="MsoNormal"><span style="font-family: Arial;"> </span></p>
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    On 1/10/2011 1:07 PM, Allan Sindelar wrote:
    </div></div><blockquote type="cite"><div><div></div><div class="h5">
      
      Lee,<br>
      I think Dave Katz at AEE had a solution, although I don't remember
      the details. You might contact him.<br>
      <br>
      <div>
        
        
        
        
        
        
        
        <div>
          <p class="MsoNormal"><span><b>Allan</b></span><b> Sindelar</b><span style="font-size: 10pt;"><br>
              <a href="mailto:Allan@positiveenergysolar.com" target="_blank"><span>Allan</span>@positiveenergysolar.com</a><br>
              NABCEP Certified Photovoltaic Installer<br>
              EE98J Journeyman Electrician<br>
              <b>Positive Energy, Inc.</b><br>
              3201 Calle Marie<br>
              Santa Fe, New Mexico 87507<br>
              <b>505 424-1112</b><br>
              <a href="http://www.positiveenergysolar.com/" target="_blank">www.positiveenergysolar.com</a></span></p>
        </div>
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      <br>
      On 1/10/2011 12:45 PM, Lee Bristol wrote:
      <blockquote type="cite">
        <pre>Wrenches,

Does anyone know of a UL Listed low temperature, over-voltage bypass
device like the dis-continued Apollo Solar product?  I need to knock
out or bypass one module of a string when the temperature gets below 5
degrees F.  The Apollo product was appropriate but is no longer
available.

Thanks!

Lee

</pre>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Lee Bristol<br>NABCEP Certified Solar Designer/Installer<br><br>Co-Founder & Commercial Channel Manager<br>Standard Solar, Inc.<br>1355 Piccard Drive, #300<br>Rockville, MD 20850<br>
(301) 944-5105<br>(240) 479-1510 (c)<br><a href="http://www.standardsolar.com" target="_blank">www.standardsolar.com</a><br>