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<div dir="auto">I keep hearing all these people hand ringing the "newer better" equipment with all the associated problems and I shake my head at why people don't choose small and simple? </div><div dir="auto"><br></div><div dir="auto">Our entire grid tied homestead is zero energy with only 7 kW of solar (and that includes our mini split for winter heating and charging our electric car) and a ~20 year old, 48 volt outback inverter with flooded and lead calcium batteries which should easily go 30 years with basically no maintenance. </div><div dir="auto"><br></div><div dir="auto">Maybe I'm just an old fuck but what I have works really well and I didn't have to reinvent the wheel either.</div><div dir='auto'><br></div>
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<p style="color: black; font-size: 10pt; font-family: sans-serif; margin: 8pt 0;">On May 18, 2025 7:54:33 AM Michael Morningstar via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:</p>
<blockquote type="cite" class="gmail_quote" style="margin: 0 0 0 0.75ex; border-left: 1px solid #808080; padding-left: 0.75ex;">
<div dir="ltr">Wow, when do we realize that fork in the road we chose to go down may have been the wrong one? I know there's a phrase to describe needing to augment an inverter with a Cerbo, Chargeverter, and Solar Assistant, but it escapes me.<div><br></div><div>Same with the myriad of tinkering, workarounds, and tweaking Manufacture A's inverter to Manufacture B's batteries. There are a lot of smart minds on this list with the technical prowess to make things work, but what happens when someone like me that's let's just say is a "little slower" gets a call to service such a system and the guy or gal that "got it to work" isn't around, or the comet-like manufacture the likes of Growatt or it's equivalent is no more. </div><div><br></div><div>I know I do more griping on this list than contribute to the knowledge corpus and it's not that I'm a crank, I think. Right now, it's just that I'm sitting on a dozen requests to build off-grid and GTBB systems and I find myself in a paralysis where I can't recommend a single Hybrid inverter, and for my potential off-grid customers, all that I can recommend is a system where I'm stacking two 3-5kw inverters and many settings require a dongle and PC, Victron. </div><div><br></div><div>So in the first case, this road seems to have lead to an ever increasing techno-cluster fuck, and in the second, it's traced back to where we were several years ago, but not in a good way.</div><div><br></div><div>Serious question, What is the challenge in building an SW quality inverter and MPPT that plays nice with most all batteries. Conext came close? If it's a feasible proposition, I know people with the means and interest in these things to make it happen.</div><div><br></div><div>Michael</div><div><br></div><div><br></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Sun, May 18, 2025 at 6:15 AM William Bryce 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="auto">SA will combine the SOC if the Communication is working properly with the BMS and the MNS AIO. See attached</div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, May 18, 2025 at 8:28 AM Jason Szumlanski via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">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="auto"><div>I will also mention that SA seems to be pulling the SOC information from only the first inverter added to the system, or the one designated as "#1" in SA. It is not averaging the SOC pulled from all three inverters. </div><div dir="auto"><br></div><div dir="auto">Another note: I tried the Emulated BMS in SA, and it didn't work. The battery graphs were all wrong, only showing that absolute value for current rather than showing charge and discharge current. The reported SOC stayed pegged at 100%. I went back to using the inverter values, and that is when I discovered the SOC was not dropping fast enough in SA, which led me to the battery aH issue. </div><div><br></div><div><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><span style="font-family: Roboto, RobotoDraft, Helvetica, Arial, sans-serif; color: #333333;">Florida Certified Electrical Contractor EC13013208</span></div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, May 18, 2025, 8:11 AM Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com" target="_blank">jason@floridasolardesigngroup.com</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="auto"><div><div>That's not a bad idea. But it is one more thing to potentially go wrong and have to maintain.</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">I just discovered something else with a parallel AIO and SA setup. Really it's more of an inverter issue. The inverters have wildly inaccurate SOC values if you are doing open loop. You have to divide the battery aH setting by the number of inverters you have for accurate numbers, at least on the firmware I have. I noticed on this triple setup that when the batteries were depleted about 80% (20% SOC), that the inverters reported a SOC of 73%. Each inverter only sees the aH that they consume individually and deduct that from 100%. </div><div dir="auto"><br></div><div dir="auto">If you are using the inverter values for SOC in SA, you need to set the aH in the inverters to the proportional share of the battery capacity. </div><div dir="auto"><br></div><div dir="auto">This is something I believe Midnite needs to fix unless it has already been addressed in a firmware upgrade. </div><div><br></div><div><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><span style="font-family: Roboto, RobotoDraft, Helvetica, Arial, sans-serif; color: #333333;">Florida Certified Electrical Contractor EC13013208</span></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, May 16, 2025, 9:53 AM Jay via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer" target="_blank">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="auto"><div dir="ltr"></div><div dir="ltr">Hi Jason</div><div dir="ltr"><br></div><div dir="ltr">How about you install a 12v battery charged from the inverter to power the device which would give you back up on backup. </div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br><blockquote type="cite">On May 16, 2025, at 12:58 AM, Jason Szumlanski via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer noreferrer" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="auto"><div>But the upside is it doesn't rely on the cloud, so historical data is stored locally, even in the event of a system shutdown (if you power the Pi device from the battery DC bus). That doesn't do much good if the battery BMS turns off, of course, but it's nice to continue logging data even if there is no Internet connection.</div><div><br></div><div><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><span style="font-family: Roboto, RobotoDraft, Helvetica, Arial, sans-serif; color: #333333;">Florida Certified Electrical Contractor EC13013208</span></div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, May 16, 2025, 12:48 AM Brett Stigile via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer noreferrer" target="_blank">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">Overall I like Solar Assistant as well. Be aware it is not cloud based. Sure it stores locally on the Pi, that’s great. But, if the internet is down you are blind. Not supper helpful for remote sites if you can’t look through the data a see if there was a potential issue or if the internet is just down. <br>
<br>
<br>
Brett Stigile<br>
Owner/Renewable Energy Electrician<br>
503-317-7950<br>
<a href="mailto:brett@oregonsunwrangler.com" rel="noreferrer noreferrer noreferrer" target="_blank">brett@oregonsunwrangler.com</a><br>
<br>
Oregon Sun Wrangler LLC<br>
CCB: 240661<br>
License No: 66LRT<br>
NABCEP PV Installation Professional Certification <br>
#PV 100414-008123<br>
<br>
> On May 15, 2025, at 1:05 PM, <a href="mailto:re-wrenches-request@lists.re-wrenches.org" rel="noreferrer noreferrer noreferrer" target="_blank">re-wrenches-request@lists.re-wrenches.org</a> wrote:<br>
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> 1. Re: EG4 Praise (Maverick Brown)<br>
> 2. Solar Assistant and Midnite AIO (Jason Szumlanski)<br>
> 3. Re: Solar Assistant and Midnite AIO (William Bryce)<br>
> 4. Re: Solar Assistant and Midnite AIO (Kirpal Khalsa)<br>
> <br>
> <br>
> ----------------------------------------------------------------------<br>
> <br>
> Message: 1<br>
> Date: Thu, 15 May 2025 08:14:41 -0500<br>
> From: Maverick Brown <<a href="mailto:maverick@mavericksolar.com" rel="noreferrer noreferrer noreferrer" target="_blank">maverick@mavericksolar.com</a>><br>
> To: RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer noreferrer noreferrer" target="_blank">re-wrenches@lists.re-wrenches.org</a>><br>
> Subject: Re: [RE-wrenches] EG4 Praise<br>
> Message-ID: <<a href="mailto:A830425D-80E1-4E8E-A23E-023873895B16@mavericksolar.com" rel="noreferrer noreferrer noreferrer" target="_blank">A830425D-80E1-4E8E-A23E-023873895B16@mavericksolar.com</a>><br>
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> <br>
> ------------------------------<br>
> <br>
> Message: 2<br>
> Date: Thu, 15 May 2025 11:37:53 -0400<br>
> From: Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com" rel="noreferrer noreferrer noreferrer" target="_blank">jason@floridasolardesigngroup.com</a>><br>
> To: RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer noreferrer noreferrer" target="_blank">re-wrenches@lists.re-wrenches.org</a>><br>
> Subject: [RE-wrenches] Solar Assistant and Midnite AIO<br>
> Message-ID:<br>
> <CAE438R-L9F0ka3QyPans-cYtQc3PDmvLK5uR6K5-Oz=<a href="mailto:WKpey3Q@mail.gmail.com" rel="noreferrer noreferrer noreferrer" target="_blank">WKpey3Q@mail.gmail.com</a>><br>
> Content-Type: text/plain; charset="utf-8"<br>
> <br>
> I just got Solar Assistant up and running with my triple AIO site. It was<br>
> surprisingly easy. I think I am in data heaven. This is everything I had<br>
> hoped for from the Midnite Pro app. It consolidates all three inverters'<br>
> instant and historical data while providing real time individual inverter<br>
> data as well. I'm not sure if I can get the historical data per inverter,<br>
> but that is available through the Midnite app anyway, and has little<br>
> usefulness in a multi-inverter environment.<br>
> <br>
> If anyone needs tips on how to get this done, feel free to contact me off<br>
> list.<br>
> <br>
> The short answer is I purchased a preloaded Solar Assistant Pi device<br>
> directly from Solar Assistant, and three USB to RS-485 dongles from Amazon.<br>
> I got the Pi device with the DC power supply and connected it directly to<br>
> my battery bus so it stays on even if the inverters shut down.<br>
> <br>
> Jason Szumlanski<br>
> Florida Solar Design Group<br>
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> ------------------------------<br>
> <br>
> Message: 3<br>
> Date: Thu, 15 May 2025 12:20:45 -0400<br>
> From: William Bryce <<a href="mailto:wlbryce@pineridgeproducts.com" rel="noreferrer noreferrer noreferrer" target="_blank">wlbryce@pineridgeproducts.com</a>><br>
> To: RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer noreferrer noreferrer" target="_blank">re-wrenches@lists.re-wrenches.org</a>><br>
> Subject: Re: [RE-wrenches] Solar Assistant and Midnite AIO<br>
> Message-ID:<br>
> <<a href="mailto:CAEQmjP4UqH9GCFGHt4MkEVtY71FbfOfh4o7gCaBUQbRj67Omog@mail.gmail.com" rel="noreferrer noreferrer noreferrer" target="_blank">CAEQmjP4UqH9GCFGHt4MkEVtY71FbfOfh4o7gCaBUQbRj67Omog@mail.gmail.com</a>><br>
> Content-Type: text/plain; charset="utf-8"<br>
> <br>
> I highly recommend using SA with ALL Asian inverters. This will remove the<br>
> chance of a SolArk screen of death bricking and locking you out of your<br>
> inverter, and also remove any chance of data or setting manipulation from<br>
> others.<br>
> <br>
> With SA, ALL the data is served and stored on the RPie computer locally.<br>
> <br>
> On the MNS AIO, you can run the Dongle and the SA at the same time.<br>
> <br>
>> On Thu, May 15, 2025 at 11:38?AM Jason Szumlanski via RE-wrenches <<br>
>> <a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer noreferrer noreferrer" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br>
>> <br>
>> I just got Solar Assistant up and running with my triple AIO site. It was<br>
>> surprisingly easy. I think I am in data heaven. This is everything I had<br>
>> hoped for from the Midnite Pro app. It consolidates all three inverters'<br>
>> instant and historical data while providing real time individual inverter<br>
>> data as well. I'm not sure if I can get the historical data per inverter,<br>
>> but that is available through the Midnite app anyway, and has little<br>
>> usefulness in a multi-inverter environment.<br>
>> <br>
>> If anyone needs tips on how to get this done, feel free to contact me off<br>
>> list.<br>
>> <br>
>> The short answer is I purchased a preloaded Solar Assistant Pi device<br>
>> directly from Solar Assistant, and three USB to RS-485 dongles from Amazon.<br>
>> I got the Pi device with the DC power supply and connected it directly to<br>
>> my battery bus so it stays on even if the inverters shut down.<br>
>> <br>
>> Jason Szumlanski<br>
>> Florida Solar Design Group<br>
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> <br>
> ------------------------------<br>
> <br>
> Message: 4<br>
> Date: Thu, 15 May 2025 09:50:38 -0700<br>
> From: Kirpal Khalsa <<a href="mailto:kirpal@oregonsolarworks.com" rel="noreferrer noreferrer noreferrer" target="_blank">kirpal@oregonsolarworks.com</a>><br>
> To: RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer noreferrer noreferrer" target="_blank">re-wrenches@lists.re-wrenches.org</a>><br>
> Subject: Re: [RE-wrenches] Solar Assistant and Midnite AIO<br>
> Message-ID:<br>
> <<a href="mailto:CAOE7iVGgp1Vxyz-82jpD1LzyW7EUMDNsw-6iBS-KnHjNk4thMg@mail.gmail.com" rel="noreferrer noreferrer noreferrer" target="_blank">CAOE7iVGgp1Vxyz-82jpD1LzyW7EUMDNsw-6iBS-KnHjNk4thMg@mail.gmail.com</a>><br>
> Content-Type: text/plain; charset="utf-8"<br>
> <br>
> Does the Solar Assistant work with Outback gear?<br>
> <br>
> Kirpal<br>
> <br>
> On Thu, May 15, 2025, 9:21?AM William Bryce via RE-wrenches <<br>
> <a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer noreferrer noreferrer" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br>
> <br>
>> I highly recommend using SA with ALL Asian inverters. This will remove the<br>
>> chance of a SolArk screen of death bricking and locking you out of your<br>
>> inverter, and also remove any chance of data or setting manipulation from<br>
>> others.<br>
>> <br>
>> With SA, ALL the data is served and stored on the RPie computer locally.<br>
>> <br>
>> On the MNS AIO, you can run the Dongle and the SA at the same time.<br>
>> <br>
>> On Thu, May 15, 2025 at 11:38?AM Jason Szumlanski via RE-wrenches <<br>
>> <a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer noreferrer noreferrer" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br>
>> <br>
>>> I just got Solar Assistant up and running with my triple AIO site. It was<br>
>>> surprisingly easy. I think I am in data heaven. This is everything I had<br>
>>> hoped for from the Midnite Pro app. It consolidates all three inverters'<br>
>>> instant and historical data while providing real time individual inverter<br>
>>> data as well. I'm not sure if I can get the historical data per inverter,<br>
>>> but that is available through the Midnite app anyway, and has little<br>
>>> usefulness in a multi-inverter environment.<br>
>>> <br>
>>> If anyone needs tips on how to get this done, feel free to contact me off<br>
>>> list.<br>
>>> <br>
>>> The short answer is I purchased a preloaded Solar Assistant Pi device<br>
>>> directly from Solar Assistant, and three USB to RS-485 dongles from Amazon.<br>
>>> I got the Pi device with the DC power supply and connected it directly to<br>
>>> my battery bus so it stays on even if the inverters shut down.<br>
>>> <br>
>>> Jason Szumlanski<br>
>>> Florida Solar Design Group<br>
>>> _______________________________________________<br></blockquote></div></div></blockquote></div><br>
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<p style="margin:0px;font:18px Helvetica">Michael Morningstar </p><p style="margin:0px;font:18px Helvetica"><br></p><p style="margin:0px;font:18px Helvetica">Morningstar Electric Inc</p><p style="margin:0px;font:18px Helvetica">PO Box 1494</p><p style="margin:0px;font:18px Helvetica">Mount Shasta, CA 96067</p><p style="margin:0px;font:18px Helvetica">530-921-0560</p><p style="margin:0px;font:18px Helvetica">CSLB 1116835</p><p style="margin:0px;font:18px Helvetica"><a href="mailto:mjmorningstar@gmail.com" target="_blank">mjmorningstar@gmail.com</a></p><p style="margin:0px;font:18px Helvetica"><br></p></div></div>
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