<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Replacing the 50A breaker with a backfed solar breaker would work if your relocate that load (which may require load calcs to reconfigure the service disconnects, which is what you would be doing).</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">You are just limited to the rating of the service on the solar interconnection, so 125 / 1.25 = 100A would be your max inverter output rating.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Jason Szumlanski</div><div class="gmail_extra"><div><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><br></div><div dir="ltr"><span><br></span></div><div dir="ltr"><span><br><div dir="ltr" style="margin-left:0pt"></div></span></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Wed, May 25, 2016 at 5:55 PM, August Goers <span dir="ltr"><<a href="mailto:august@luminalt.com" target="_blank">august@luminalt.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="color:#1f497d">All –</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">I’ll chime in to my own post with this article from Solar Pro:</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d"><a href="http://solarprofessional.com/articles/design-installation/residential-supply-side-interconnection?v=disable_pagination" target="_blank">http://solarprofessional.com/articles/design-installation/residential-supply-side-interconnection?v=disable_pagination</a></span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">See “A Simpler Supply Side” – I’m fairly certain that we can install up to 125 A of solar on this panel since the connection would qualify as a supply side connection. However, I’m still curious about main breaker limitations for these types of panels.</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">Best, August</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><div><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""> August Goers [mailto:<a href="mailto:august@luminalt.com" target="_blank">august@luminalt.com</a>] <br><b>Sent:</b> Wednesday, May 25, 2016 2:39 PM<br><b>To:</b> 'RE-wrenches'<br><b>Subject:</b> meter main combo with multiple main breaker spots and NEC 705.12</span></p></div></div><div><div><p class="MsoNormal"> </p><p class="MsoNormal">Hi Wrenches,</p><p class="MsoNormal"> </p><p class="MsoNormal">We have a 125 A meter/main combo with space for up to 6 breakers (or three two-pole breakers). Here is a Google photos link:</p><p class="MsoNormal"> </p><p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#212121;background:white"><a href="https://goo.gl/photos/kftDerEESg3giLrB9" target="_blank">https://goo.gl/photos/kftDerEESg3giLrB9</a></span></p><p class="MsoNormal"> </p><p class="MsoNormal">The configuration is such that the busing is unprotected and connected directly to the utility feeds through the meter bus. I want to install into a subpanel fed by the 100 A breaker to the right. Does anyone see a reason why I can’t install up to 100 A of solar? What if we tied the solar where the 50A two pole breaker currently is? Lastly, does any code savvy individual know what limits, if any, there are to the sizing of main breakers in this panel?</p><p class="MsoNormal"> </p><p class="MsoNormal">Cheers,</p><p class="MsoNormal"> </p><p class="MsoNormal">August</p><p class="MsoNormal">Luminalt</p></div></div></div></div>
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