<div dir="ltr"><div class="gmail_default" style="font-size:small"><div class="gmail_default">(sorry sent the previous reply before it was complete)</div><div class="gmail_default">Hi Jason,</div><div class="gmail_default"><br></div><div class="gmail_default">Currently Tesla doesn't allow any totally off-grid installations with PW3 or PW3, they used to support this through the Gateway but no longer do.</div><div class="gmail_default"><br></div><div class="gmail_default">In addition, the Powerwall 3 will require at least a single MCI per string to pass the self test function. This also limits the total string loop length from MPPT+ to MPPT-.</div><div class="gmail_default"><br></div><div class="gmail_default">Powerwall 3 does contain the site controller, but it will require some islanding contactor to function properly.</div><div class="gmail_default"><br></div><div class="gmail_default"><p class="MsoNormal"><b><span style="font-size:10pt;font-family:Arial,sans-serif"><font color="#0000ff">Vince Jolissaint</font></span><span style="color:rgb(77,45,211);font-size:10pt;font-family:Arial,sans-serif"> </span><span style="font-size:10pt;font-family:Arial,sans-serif"><font color="#000000">|</font></span></b><font color="#000000"><span style="font-size:10pt;font-family:Arial,sans-serif"> </span><b><span style="font-size:10pt;font-family:Arial,sans-serif">Director of CAD Services</span></b></font><font color="#222222"><u></u><u></u></font></p><p class="MsoNormal"><font color="#444444"><span style="font-size:10pt;font-family:Arial,sans-serif">2557 Wyandotte Street | Mountain View, CA  94043</span><span style="font-family:Arial,sans-serif"><br></span><span style="font-size:10pt;font-family:Arial,sans-serif">Office: 650.938.9574 | Email:</span><span style="font-size:10pt;font-family:Arial,sans-serif"> </span><span style="font-size:10pt;font-family:Arial,sans-serif"><a href="mailto:vincentj@cobaltpower.com" target="_blank">vincentj@cobaltpower.com</a></span></font></p></div><div class="gmail_default"><br></div><div class="gmail_default">>From: Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com" target="_blank">jason@floridasolardesigngroup.com</a>></div><div class="gmail_default">>To: RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>><br>>Subject: [RE-wrenches] Powerwall 3<br>>Message-ID:<br> >       <CAE438R9LWo_VNuTTkOzVbv62LST3_Bf4-x7VfLm=-<a href="mailto:Rkk6k%2BwJw@mail.gmail.com" target="_blank">Rkk6k+wJw@mail.gmail.com</a>><br>>Content-Type: text/plain; charset="utf-8"<br><br>>Certified Powerwall installers,<br><br>>Can the PW3 be commissioned for for a completely off-grid system with DC<br>>coupled solar panels with no MCIs. If so, do you need a Gateway 2/3, or can<br>>it operate autonomously in this scenario without a Gateway?<br>><br>>Jason Szumlanski<br>>Florida Solar Design Group</div></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><p class="MsoNormal"><b><span style="font-size:10pt;font-family:Arial,sans-serif"><font color="#0000ff"><span class="gmail_default" style="font-size:small"></span></font></span></b></p><p class="MsoNormal"><font color="#444444"></font></p><p class="MsoNormal" style="color:rgb(34,34,34)"><br></p><p class="MsoNormal" style="color:rgb(34,34,34)"><img src="https://www.cobaltpower.com/images/logos/Transparent-Logo.png" width="200" height="55"><br></p></div></div></div></div>