<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr">The evault doesn’t see the multiple inputs, just like any battery. </div><div dir="ltr">The envy % reading via web is working well. And yes it’s a bit weird to the solar from the inverter not add up to the daily charge numbers </div><div dir="ltr">But it’s working fine </div><div dir="ltr"><br></div><div dir="ltr">If you follow oem charge instructions the open loop voltages are a bit lower than closed loop. So far in this offgrid system it’s not mattered with the 2 different charge settings. It’s still getting full. </div><div dir="ltr"><br></div><div dir="ltr">When the array gets upgraded I’ll put everything through the envy. </div><div dir="ltr">But it’s got a bunch of 20 yr old panels that I didn’t want to rewire to 500v. So I kept the oldest ones on the 150v controllers </div><div dir="ltr"><br></div><div dir="ltr">Hope this helps</div><div dir="ltr"><br></div><div dir="ltr">Jay</div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br><blockquote type="cite">On Jun 30, 2024, at 9:30 AM, Kirk Herander via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="auto">Yes, remotely at least. You need a mate 3S to monitor any outback product if you want to see it on opticsRE. <br clear="all"><br>But the Evault state of charge should give an accurate calculation, regardless of where the charging Current is coming from. </div><div dir="auto"><br clear="all"><div dir="auto"><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><p class="MsoNormal" style="font-family:Arial;font-size:16px;margin:0in 0in 0.0001pt;color:rgb(0,0,0)"><span style="font-size:10pt;font-family:Arial"><a name="SignatureSanitizer__MailAutoSig" style="font-family:Arial"><b style="font-family:Arial">Kirk Herander / </b></a><b style="font-family:Arial"><a href="mailto:kirkh@vermont.solar" title="Send an email to kirkh@vermont.solar; Send an email to kirkh@vermont.solar" style="font-family:Arial;color:blue" target="_blank">kirkh@vermont.solar</a></b></span></p><p class="MsoNormal" style="font-family:Arial;font-size:16px;margin:0in 0in 0.0001pt;color:rgb(0,0,0)"><span style="font-size:10pt;font-family:Arial"><b style="font-family:Arial">Owner|Principal, VT Solar, LLC</b></span></p><p class="MsoNormal" style="font-family:Arial;font-size:16px;margin:0in 0in 0.0001pt;color:rgb(0,0,0)"><span style="font-size:10pt;font-family:Arial"><b style="font-family:Arial"><i style="font-family:Arial">Celebrating our 33<sup style="font-family:Arial">st</sup> Anniversary 1991-2024!!</i></b></span></p><p class="MsoNormal" style="font-family:Arial;font-size:16px;margin:0in 0in 0.0001pt;color:rgb(0,0,0)"><span style="font-size:10pt;font-family:Arial">dba Vermont Solar Engineering</span><br></p><p class="MsoNormal" style="font-family:Arial;font-size:16px;margin:0in 0in 0.0001pt;color:rgb(0,0,0)"><span style="font-size:10pt;font-family:Arial">802.559.1225</span></p></div></div></div></div><div><br></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Jun 30, 2024 at 11:11 AM Dave Angelini Offgrid Solar 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-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div style="font-size:12pt;font-family:Verdana,Geneva,sans-serif">
<div id="m_2567915036322730430signature" style="font-family:Verdana,Geneva,sans-serif"> You and the client lose the ability to monitor it all in one place do you not?<br>
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<pre style="font-family:monospace"><strong style="font-family:monospace"><span style="font-size:small;font-family:monospace">Dave Angelini Offgrid Solar
"we go where powerlines don't"
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text 209 813 0060</span></strong></pre>
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<p id="m_2567915036322730430reply-intro" style="font-family:Verdana,Geneva,sans-serif">On 2024-06-29 4:48 pm, Kirk Herander via RE-wrenches wrote:</p>
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<div style="font-family:Verdana,Geneva,sans-serif">All,</div>
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<div style="font-family:Verdana,Geneva,sans-serif">I'm wondering if there are any precautions if charging a Fortress Evault LFP bank using 1 or more OB charge controllers, in tandem with an Envy inverter PV input.</div>
<div style="font-family:Verdana,Geneva,sans-serif"> </div>
<div style="font-family:Verdana,Geneva,sans-serif">I know it will have to be programmed differently, and it will be open loop, no CC control from the BMU,.</div>
<div style="font-family:Verdana,Geneva,sans-serif"> </div>
<div style="font-family:Verdana,Geneva,sans-serif">This is a net metered system using a Fortress 12 kw inverter. The total PV input of the inverter is 21 kw. Max sell back is 12 kw, while charging batteries at 6 kw.</div>
<div style="font-family:Verdana,Geneva,sans-serif"> </div>
<div style="font-family:Verdana,Geneva,sans-serif">My issue is the customer has his heart set on maxing out the roof capacity at 25 kw. And I don't really need to add a second inverter for critical loads, Only to increase integrated DC-coupled PV capacity.</div>
<div style="font-family:Verdana,Geneva,sans-serif"> </div>
<div style="font-family:Verdana,Geneva,sans-serif">So I feasibly put part of the array on external charge controller(s) , open-looped, and the remainder on a single 12kw Envy inverter.</div>
<div style="font-family:Verdana,Geneva,sans-serif"> </div>
<div style="font-family:Verdana,Geneva,sans-serif">A second inverter also increases the AC capacity, and as a result, involves a more comprehensive review for net metering approval in Vermont (new trigger for additional review is greater than 15 kw AC)..</div>
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<span style="font-family:Verdana,Geneva,sans-serif">-- </span><br>
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<p style="font-family:Arial;font-size:16px;margin:0in 0in 0.0001pt;color:rgb(0,0,0)"><span style="font-size:10pt;font-family:Arial"><a name="m_2567915036322730430_v1SignatureSanitizer__MailAutoSig" style="font-family:Arial"></a><strong style="font-family:Arial">Kirk Herander / </strong><strong style="font-family:Arial"><a style="font-family:Arial;color:blue" title="Send an email to kirkh@vermont.solar; Send an email to kirkh@vermont.solar" href="mailto:kirkh@vermont.solar" rel="noreferrer" target="_blank">kirkh@vermont.solar</a></strong></span></p>
<p style="font-family:Arial;font-size:16px;margin:0in 0in 0.0001pt;color:rgb(0,0,0)"><span style="font-size:10pt;font-family:Arial"><strong style="font-family:Arial">Owner|Principal, VT Solar, LLC</strong></span></p>
<p style="font-family:Arial;font-size:16px;margin:0in 0in 0.0001pt;color:rgb(0,0,0)"><span style="font-size:10pt;font-family:Arial"><strong style="font-family:Arial"><em style="font-family:Arial">Celebrating our 33<sup style="font-family:Arial">st</sup> Anniversary 1991-2024!!</em></strong></span></p>
<p style="font-family:Arial;font-size:16px;margin:0in 0in 0.0001pt;color:rgb(0,0,0)"><span style="font-size:10pt;font-family:Arial">dba Vermont Solar Engineering</span></p>
<p style="font-family:Arial;font-size:16px;margin:0in 0in 0.0001pt;color:rgb(0,0,0)"><span style="font-size:10pt;font-family:Arial">802.559.1225</span></p>
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