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Just adding my experience here for anyone looking to purchase from Signature Solar. I ordered the Growatt SPF 5000 ES-US inverter from them as well as a pallet of solar panels as they're located pretty close to me here in Texas. Everything arrived quickly and with no damage. So far the inverter...

I completely understand the lead time on the parts to repair the inverter with the current chip shortage, but I don't believe I have asked anything unreasonable or outside their usual procedures listed below. The thing about this is the unit is perfectly functional without the comms board so why...

I purchased it on January 31st of this year. Didn't actually install it until probably late Feb early March. And I agree, seems I am getting a bit of the shaft here, the comms board alone is labelled 2019 where as mine was 2021 at least. UPDATE: I contacted the RMA department and they said they...

I don't have much room to build on the ground so it will be a rooftop install. And here in the Texas Panhandle we get some pretty strong winds, maybe not hurricane force, but 60-70 mph winds are not uncommon. I went through the design tool on IronRidges website and think I have a pretty good...

So I got a shipment in today from Signature Solar with what looks to be a refurbished unit. While I am happy to finally get it back I still am not too impressed with the communication. Last update I had from them was on 4/21 stating they received the new comms board in for my unit and would be...

If you get it working you'll have to let me know what I am missing. I bought mine from you guys and when plugged in to the Pi or the console port I don't see any output.

The USB-A to USB-B that was supplied with the inverter. I have also tried another cable to make sure it wasn't just the cable.

I have been trying to get communication setup with my Growatt 5000 from Signature Solar with very little success so far. I am starting to think that maybe something within the inverter itself is not plugged in to the coms board. I am hoping that somebody on the forum with a successful setup can...

What does it up as under Device Manager?

I am trying to build an off-grid array mainly to charge my Tesla, and eventually my shed/office equipment. Below is a picture of the shed and the dimension of each side of the roof is 12'4" X 4'10". I bought a pallet of 10 REC 375W REC375TP2SM72 from signature solar. These panels are 78.9 " x...

The back of the shed is facing south, so the roof of the shed sees sun all day long. The basketball goal is in my driveway and is moveable, luckily the daughter is a pretty good shot so it likely won't be a big issue. Wind is pretty strong here at times, the difference in cost between the XR-100...

Check the below thread for some details on how the process went. It was not fun. https://diysolarforum.com/threads/signature-solar-customer-service.38783/#post-497719

Thank you! This is perfect!

So I have more order placed with Solar-electric.com! Surprisingly the wife actually suggested I put it on the roof of the main house. She doubts the city here would really care or even find out if I didn't get a permit (we also have great a great relationship with all our neighbors). I am still...

Can you take a picture of the markings on the board and the "Hardward Ids" from device manager? I believe there are two different versions of the board floating around that might require different drivers. The below CP210 driver should work with the one that typically should ship with them...

Unfortunately moving the shed isn't something the wife is going to allow since it would cut in to the usable backyard space for the kids, and I work out of this daily so I would be ruining the sod walking to it each day.

Yeah, 70.4 volt nominal I believe. I guess splitting is always an option, the main reason I haven't really used them was the lack of powerful enough BMS for 22s.

Yep, looks like you have the newer board that was on the one that I had to send back. I had also tried that version of the driver but it did not resolve the issue.

Anyone have any luck getting communications working with a the Growatt 5000 US version from Signature Solar? I have tried connecting to PC and a RaspberryPi but don't seem to get any communication from the USB port. When connected it is recognized as a COM port, but using a serial monitor I...

Just an update here to anyone who happens to be following this thread. Growatt tech support worked with me for about a week back and fourth on the issue with the comms board. They finally stated they believe the board is bad and to communicate with the seller to have them replace the board...

I've noticed that as well. No worries on that part as after our discussions here I just went ahead and reached out to Growatt tech support to have them do the troubleshooting. I was already pretty confident I knew what the issue was but thought I would have them confirm.

I wish! Likely another suggestion the wife would probably shoot down.

I think the reason you're not getting a response is there isn't enough information to understand what you're asking. What are you doing with the power your array is producing since you don't have a battery? Are you using it to power everything and when solar isn't enough it is going over to utility?

Which version are of the 5000ES are you using? I don't get any output on mine.

What is your PV array configurations expected output? Have you tried setting it to just SOL to see what the load percentage is? I suspect with the absence of a battery the inverter isn't able to supply the needed amperage and is staying on utility.

So I bought a couple of these A123 battery packs from Battery Hookup a couple months back to try and use on a Electric Golf Cart project I was working on. I still haven't finished the project and at this point I am not sure I ever will. I did however just place an order for a new Model 3 and was...

Just checking to see if anyone with a 5000ES has any input or can share pictures of their module. I have noticed that the one that Signature Solar and David Poz are not the same as mine. Also, Growatt tech support was pretty responsive for a couple days but I am starting to think they might not...

I've been trying to communicate with my Growatt 5000 US version from Signature solar but have not had any luck. When I connect to PC or a Pi, I can see it show up as a serial device, but I don't see any TX/RX on either. On my Raspberry Pi 4 it shows up as /dev/ttyACM0 so I modified your script...

I don't think baud rate is the issue here, I have tried 9600 as it is the default for most applications. Also, I know normally you would still get communications for a device even with an incorrect rate, but it would just be garbage characters and I get no output on the terminal at all.

I am just trying to get any communication with the inverter for monitoring. I have tested that program on a Raspberry Pi, PVKeeper, and just a direct serial connection to the inverter. When I connect the supplied USB to the inverter it just shows up as a "USB serial device" with or without there...