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<p>I would have thought so. I can just see them saying tweak this,
no tweak that. But I going to have to assume their statement is
valid. I hope to fire it up in the next week. My first EG4 so I
need to learn how to commission this first. </p>
<div class="moz-cite-prefix">On 11/18/2025 10:55 AM, William Miller
wrote:<br>
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<blockquote type="cite"
cite="mid:CAAgpqUOrHJCa787U8Efq7My4oBL-GHG9ARLsYwG=ZgVJx74XxA@mail.gmail.com">
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<div dir="auto">Christopher:</div>
<div dir="auto"><br>
</div>
<div dir="auto">Thank you. </div>
<div dir="auto"><br>
</div>
<div dir="auto">How is it that one can put optimized inverters in
front of a standard MPPT algorithm? Don’t they work against
each other?<br clear="all">
<br clear="all">
<div dir="auto">
<div dir="ltr" class="gmail_signature"
data-smartmail="gmail_signature"><br>
William Miller<br>
Miller Solar.com<br>
805-438-5600<br>
<a href="http://www.millersolar.com" moz-do-not-send="true">www.millersolar.com</a><br>
</div>
</div>
</div>
<div><br>
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<div><br>
<div class="gmail_quote gmail_quote_container">
<div dir="ltr" class="gmail_attr">On Tue, Nov 18, 2025 at
5:47 AM Christopher Warfel via RE-wrenches <<a
href="mailto:re-wrenches@lists.re-wrenches.org"
moz-do-not-send="true" class="moz-txt-link-freetext">re-wrenches@lists.re-wrenches.org</a>>
wrote:<br>
</div>
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style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<p>I recently got the TS4 A-Os when I thought I ordered
the TS A Fs and was also worried about the possible
fighting between the two MPPT devices. As was under the
gun for weather and end of year, went with the AO's.
Have you tried emailing <a
href="mailto:support@tigoenergy.com" target="_blank"
moz-do-not-send="true">"support@tigoenergy.com"</a>?</p>
<p>I went through AI and found this document:</p>
<p><br>
</p>
<p><img
src="cid:part1.AVRh00ow.GOjkHjcc@entech-engineering.com" alt=""
style="width:932px;max-width:100%" class=""></p>
<p><br>
</p>
<div>On 11/17/2025 11:44 PM, MDElectricSolar via
RE-wrenches wrote:<br>
</div>
<blockquote type="cite"> We are having no issues sourcing
these from our primary vendor, Greentech.
<div><br
id="m_7631726865360386109lineBreakAtBeginningOfSignature">
<div dir="ltr">
<div>Michael D Nelson</div>
<div>MD Electric & Solar, Inc.</div>
<div>707-684-0064 mobile</div>
<div>707-884-1862 office</div>
<div><a href="http://www.mdelectricsolar.com"
target="_blank" moz-do-not-send="true">www.mdelectricsolar.com</a></div>
<div><a
href="http://www.facebook.com/mdelectricandsolar" target="_blank"
moz-do-not-send="true">www.facebook.com/mdelectricandsolar</a></div>
<br>
</div>
<div dir="ltr"><br>
<blockquote type="cite">On Nov 17, 2025, at 7:11 PM,
William Miller via RE-wrenches <a
href="mailto:re-wrenches@lists.re-wrenches.org"
target="_blank" moz-do-not-send="true"><re-wrenches@lists.re-wrenches.org></a>
wrote:<br>
<br>
</blockquote>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">Friends:</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">I
am having trouble locating these RSDs. Very
few vendors appear to have these and I can’t
get any to call back and verify they have
them. I can’t get Tigo to return my calls.
Does anyone know if these are discontinued?</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">What
are the rest of you doing for rapid
shutdown? I don’t trust Alps: I have heard
too many horror stories. It seems the form
factor is too small to contain arc
suppression measures.</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">Somewhere
I saw as an alternative the Tigo TS4-A-O.
These are optimizers. I worry these will
fight with the MPPT algorithm in the
inverter or charge controller. There is
also the TS4-A-S which has shutdown and
monitoring.</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">All
input is welcome an appreciated. Thanks in
advance.</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">William</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif"">Miller
Solar</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif"">17395
Oak Road, Atascadero, CA 93422</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif"">805-438-5600</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif""><a
href="http://www.millersolar.com/"
target="_blank" moz-do-not-send="true">www.millersolar.com</a></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif"">CA
Lic. 773985</span></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
</div>
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<pre cols="72">--
Christopher Warfel, PE
ENTECH Engineering, Inc.
PO Box 871, Block Island, RI 02807
(401) 447-5773</pre>
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<pre class="moz-signature" cols="72">--
Christopher Warfel, PE
ENTECH Engineering, Inc.
PO Box 871, Block Island, RI 02807
(401) 447-5773</pre>
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