<div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I'm interested in this also. This is becoming increasingly necessary as we install "whole home" backup systems, but we need to dump a load that is on a downstream subpanel. A common need is to shed pool equipment like electric heat pumps and pool pumps when utility power is lost. In other cases, the backup system interconnection point is outside at a meter/main combination service entrance device, but the loads we need to shed are on a downstream distribution load center.</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">Sometimes wiring control cables to do this is cumbersome or virtually impossible.</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">A while back I ended up purchasing a 24Vac remote 900 Mhz relay to shed air conditioning, but ultimately I never installed it because it was too complicated and introduced an unacceptable point of failure (potential service issue). We need some reliable, simple load shedding products that are brand agnostic.</div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><br>Jason Szumlanski<div><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Principal Solar Designer | Florida Solar Design Group</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">NABCEP Certified Solar Professional (PVIP)</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Florida State Certified Solar Contractor CVC56956</span></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Jun 27, 2023 at 1:06 AM Mac Lewis via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hello Wrenches,<div><br></div><div>Is anyone aware of a remote load shedding solution that doesn't require additional signal wiring to the loads?</div><div><br></div><div>Generac has a great solution for this that they adapted from their generator business called a Generac Smart management module. Its a 2P x 50A relay that monitors line frequency going to the load and it will trip it off line when the frequency sags. The inverter does a small wiggle that will trip it offline based on some Dip switch settings. on the unit. This really simplifies code compliance in some cases.</div><div><br></div><div>I'm wondering if there are any other more general solutions out there for this.</div><div><br></div><div>Thanks in advance!</div><div><br></div><div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div><br></div><div><font color="#305A78" face="'times new roman', serif"><br></font></div><div><br></div>Mac Lewis<br><br><span style="font-family:"Times New Roman";font-size:medium;color:rgb(255,153,0)"><b><font face="Arial, Helvetica, sans-serif" size="3"><p align="left"><font color="#000000" face="Verdana, Arial, Helvetica, sans-serif"><span style="font-size:small"><span style="font-family:arial;font-weight:normal;color:rgb(48,90,120)"><font face="'times new roman', serif">"Yo solo sé que no sé nada." </font><span style="font-weight:700;color:rgb(104,104,104)"><font face="'times new roman', serif">-Sócrates</font></span></span></span></font></p></font></b></span></div></div></div>
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