<html><body style="font-family: Helvetica,Arial,sans-serif; font-size: 12px;"><div>I think Morningstar has a product that would work. Please let me know how the project goes.</div><div><br></div><div>Thank you,</div><div><br></div><div>Drake <br></div><div>Athens Electric<br></div><br><br><blockquote class="atmailquote"><br>----- Original Message -----<br><div id="origionalMessageFromField" style="width:100%;display:inline;background:rgb(228,228,228);"><div style="display:inline;font-weight:bold;">From:</div> "RE-wrenches" <re-wrenches@lists.re-wrenches.org></div><br><div id="origionalMessageToField" style="display:inline;font-weight:bold;">To:</div>"RE-wrenches" <re-wrenches@lists.re-wrenches.org><br><div id="origionalMessageSentField" style="display:inline;font-weight:bold;">Cc:</div><br><div style="display:inline;font-weight:bold;">Sent:</div>Tue, 22 Oct 2019 12:07:45 -0400<br><div id="origionalMessageSubjectField" style="display:inline;font-weight:bold;">Subject:</div>[RE-wrenches] 600Vdc Transfer Switch Between Charge Controller and GT Inverter<br><br><br><div dir="ltr"><div>Hi All,</div><div><br></div><div>I've been asked to review a GT-BBUS that was installed with a DC to AC ratio of 2.14. The system owner is frustrated b/c his 9.2-kW of PV is bottlenecked by an 80A MPPT (~4,300W). The inverter is a XW-5548 so there is a second bottleneck to overcome even if an additional CC were added.</div><div><br></div><div>My inclination is to install a GT inverter for half the array and make a separate point of connection. I have considered adding a transfer switch on the PV conductors to allow the owner to toggle between this new GT inverter and the existing CC. I thought that having the option would be of benefit during extended outages with little sun.</div><div><br></div><div>I'd be curious to know if anyone has had to solve a problem similar to this one and if they were able to find a suitable switch. To-date, I have not located a good transfer switch or breaker assembly with handle-tie etc... Any thoughts are greatly appreciated.<br></div><div><br>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div><div>Matt Sherald<br></div>PIMBY Energy, LLC<br></div><div>NABCEP Certified Solar PV InstallerŪ<br></div><div>304-704-5943<br><br></div><span><a href="http://www.getpimby.blogspot.com">www.getpimby.blogspot.com</a><br></span><a href="http://www.getpimby.com">www.getpimby.com</a><br></div><br></div></div></div></div>
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