<p>The real limit here is the sell on xw5548 and not the charge controller as the op knows. Not hard to add a second mppt of any kind. Matt's idea of a grid tie inverter is a good choice or add a second xw/mppt and keep all the comms on the same xanbus.</p>
<pre><strong><span>Dave Angelini Offgrid Solar
"we go where powerlines don't"
<a href="http://members.sti.net/offgridsolar/" target="_blank">http://members.sti.net/offgridsolar/</a>
e-mail <a href="mailto:offgridsolar@sti.net">offgridsolar@sti.net</a>
text 209 813 0060</span></strong></pre>
<p>On Wed, 23 Oct 2019 09:40:01 -0700, Jeff Clearwater <jeffc@villagepowerdesign.com> wrote:</p>
<blockquote type="cite" style="padding-left:5px; border-left:#1010ff 2px solid; margin-left:5px; width:100%"><!-- html ignored --><!-- head ignored --> <!-- meta ignored --><span>Hey Matt,<br /> <br /> See Morningstar's<br /> <br /> TS-MPPT-60-600V-48-DB-TR<br /> </span><br /> <span><a href="https://www.morningstarcorp.com/products/tristar-mppt-600v/">https://www.morningstarcorp.com/products/tristar-mppt-600v/</a><br /> <br /> Hope that helps!<br /> <br /> Jeff<br /> </span><br /> <span><span>~~~~~~~~~~~<br /> </span> </span>
<div class="moz-signature"><span>Jeff Clearwater</span><span><span><br /> </span>Village Power Design<br /> </span><span><span><span><a href="https://www.linkedin.com/in/jeff-clearwater-0622a312/">linkedin</a> </span></span></span><br /> <span><span><a href="http://www.villagepowerdesign.com">www.villagepowerdesign.com</a></span><br /> cell - <span class="__postbox-detected-content
__postbox-detected-phone" style="display: inline; font-size: inherit; padding: 0px; color: #505050;">413-559-9763<br /> ~~~~~~~~~~~~~~~~~~~~~~~</span></span></div>
<span><br /> Matt Sherald wrote on 10/22/19 9:07 AM:</span><br /> <br />
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<div>Hi All,</div>
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<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>
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<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>
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<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.</div>
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<div>Matt Sherald</div>
PIMBY Energy, LLC</div>
<div>NABCEP Certified Solar PV Installer®</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></div>
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</blockquote>
<br /> <br />
<div class="moz-signature">-- <br /><span>~~~~~~~~~~~<br /> </span>
<div class="moz-signature"><span>Jeff Clearwater</span><span><span><br /> </span>Village Power Design<br /> </span><span><span><span><a href="https://www.linkedin.com/in/jeff-clearwater-0622a312/">linkedin</a> </span></span></span><br /> <span><span><a href="http://www.villagepowerdesign.com">www.villagepowerdesign.com</a></span><br /> cell - <span class="__postbox-detected-content
__postbox-detected-phone" style="display: inline; font-size: inherit; padding: 0px; color: #505050;">413-559-9763<br /> ~~~~~~~~~~~~~~~~~~~~~~~</span></span></div>
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