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  1. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    You are correct, the PW+ CT is indeed in the upper left corner, I had to move the wires aside and peek behind it, but it's there! Regarding shading, I've been taking a close watch on the two strings attached to the standalone inverter, and your theory was correct - MP5 is shaded at 2PM. It's on...
  2. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    I agree with this - I didn't see anything in the PW+ inverter that looked like the CT in the GW, and it would make sense that Tesla wouldn't put one into the PW+ inverter since the functionality is already there.
  3. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    Thanks, you're correct. I opened my gateway and found it (it appears gray in the photo, but it's actually black - this was taken in bright sun).
  4. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    At 11:25AM this morning, this is what I measured: Tesla App = 5.0 kW pypowerwall (B+C+D) = 2.285+0.930+0.831 = 4.046 kW PVWatts (July 1) = 6.1 kW So the Tesla App reports a value closer to PVWatts than pypowerwall, but still definitely lower. Thanks for the info on the CT; for some reason I...
  5. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    This makes sense. So if there is a Powerwall and standalone inverter in a system like mine, the App has to combine the data from the solar CT and from the Powerwall to get accurate power information. So the 726Wh that I calculated in my previous posts could indeed be the standalone inverter's...
  6. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    No, pypowerwall and the Tesla App don't match. I just checked 11:00AM Monday pypowerwall vs Tesla App, and the difference was 726Wh. Is this difference the output of the standalone inverter? I'm getting very confused.
  7. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    Nice call! The Tesla App GUI shows 4.8kWh at 11:00AM Monday. Does this mean the standalone inverter's output (MP2+MP5) was 726Wh? Both the app and pypowerwall I think should reflect all the string outputs. But all of this is very confusing so I'm not sure. For the PVWatts plot I picked a...
  8. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    Thanks for the feedback, I agree, I think output is low on mine. My PVWatts calculations matches Tesla's "commitment", and the actual performance for June is about 30% below this. Time to go argue with Tesla again!
  9. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    I also tried what you mentioned a few weeks ago (power cycling the standalone inverter, and I was able to connect to it via browser and 192.168.2.1. I recall it came online after a couple of minutes (2 or 3?), but stayed online for only about 15 minutes. It was very annoying and time consuming...
  10. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    That is exactly what I figured as well, thanks for the confirmation.
  11. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    Thanks for the detailed input. I was wondering about just these details and you've answered some questions I had. So there is just no way to get data from the standalone Tesla inverter with pypowerwall (I'm a new user and still learning)? The earlier data was taken at 11:00AM, so all panels...
  12. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    No worries, I really appreciate your detailed feedback!
  13. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    Could you clarify? Both PVWatts and the Tesla app show peak production at noon, with 11:00AM slightly less.
  14. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    Thanks for your recommendations and the technical details, this is great! When I speak to them, I will let them know.
  15. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    I used the default ac/dc ratio (1.2). Below is the full output (from example.py). I just used this code as a basis, didn't explore any other functions. If you need more info, let me know and I can figure out the other functions: Site Name: My Home - Firmware: 22.18.3 21c0ad81 - DIN...
  16. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    BG, thanks for the guidance, it's very helpful. Can you explain why you think MP2 & 5 may be at fault? With all the clues I gathered, I couldn't narrow it down myself... 🙁
  17. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    I got Tesla on chat this morning, and they were able to email the drawings right away! Here are the pertinent pages. I was wrong about a couple of things. There are actually 5 strings as shown in the drawings, not 4. I was also off regarding the roof pitch. Of the 5 strings, MP2 and MP5 are...
  18. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    I realize it is about expectation, but I am also worried that it wasn't installed properly. Some backstory: on the last day the installers were on-site, the foreman said he was finished at 1PM, then the whole team proceeded to hang around for an additional 1.5 hours, crawling all over the...
  19. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    Thanks for the information. I'll correct my pvwatts input and rerun the numbers. Also, I didn't mean to imply that that I have four arrays (the installers mentioned I had two). I am not sure how many are really up there (I'd like to see the schematics), but my previous post was meant to convey...
  20. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    That is my feeling as well, although my only detailed data point is my coworker. He has a 8.8kW system also in the Bay Area, and for most of this month he is producing ~65kWh per day. When we compare our arrays side by side on our apps, mine is ~45kWh on days when his is ~65kWh. It's nice to...
  21. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    I'd love to chat with Tesla, but the chat button doesn't appear in my account (?!?). When logged into the website in a browser and I find a chat link, it brings me to the Tesla home page. Also int he app, the "Request Support" button does not appear. I've loaded the app on both Android and IOS...
  22. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    Thanks, I see the "Hourly" button now, I will def download and plot this out.
  23. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    Great input, thanks so much. Are you in the Bay Area part of Northern California?
  24. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    I would also like to see the wiring diagram - I'll ping Tesla again for it. Thanks!
  25. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    Will do - I will start with PVwatts *4 before I dive into trig/calculus. Thanks!
  26. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    I tried PVwatts but will do it again with more accurate input to reflect the true azimuth of all the panels (rather than using the default). Did you take a look at the string information I printed in the original post, does it look normal? I am really curious what string A's status means when...
  27. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    I used to have calculus skills in college, but that was a few decades ago! I did use pvwatts, but I used the same azimuth (default of 180) for the entire array. I think to get an accurate number, I need to do this four times, for each of the four directions the panels face. Yes, please explain...
  28. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    Thanks for the info regarding heat. I've been comparing my output to my co-worker's. He has almost an identical Tesla system, but fewer panels (8.8k total vs my 9.6kW). His panels are not shaded and are spread on all four sides of the house like mine. He's in San Ramon, I'm in south San Jose so...
  29. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    😁 Lol, our messages crossed! Yes, they are indeed 400W panels. They provided no engineering drawings. I asked customer service for a schematic last week; they said the drawings should be in the document set in my Tesla account, but they are not. The only drawing I have is the panel layout, but I...
  30. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    The standalone inverter is 3.8kW; the Powerwall Plus inverter is 7.6kW. This is all Tesla equipment (I thought they didn't use microinverters?). 10 panels are north east facing 4 panels are north west facing 5 panels are south east facing 5 panels are south west facing The only shaded panels...
  31. S

    Disappointing Power Generation, and I need help with analysis of pypowerwall output please!

    Hi All, I've been going back and forth with Tesla about the output of my solar array, and thanks to this board I think I may have enough data to go back to them (again) and convince them to send someone out to check and fix it. But first some background. My panels went in a couple of months...
  32. S

    Using pypowerwall - how to get started

    Ok, you saved me once again! I used the last five characters of the GW webUI password, and it worked! I'm now getting status from the Powerwall (Grid raw/Solar raw data). Looks like I have to format it and see what my array is actually doing. Thank you!!!
  33. S

    Using pypowerwall - how to get started

    You are correct, sorry if I wasn't clear, I was trying to connect to the Inverter attached to the Powerwall+.
  34. S

    Using pypowerwall - how to get started

    Good call! I looked through the list of devices connected to my WiFi router, and the the stand alone inverter and gateway were there as I expected, but nothing with "LG" in the name. So I ran a pypowerwall scan and it found it! It actually has an unintelligible name, a series of numbers and...
  35. S

    Using pypowerwall - how to get started

    I can see the Panels and PW in the Tesla app (I can get status of power generation, home power use, PW charging and discharging, etc), and it is indeed connected to my home Wi-Fi. (I think this is what you were asking). Maybe I should back up a bit. The Tesla app tells me the status of all...
  36. S

    Using pypowerwall - how to get started

    Thanks for the reply! I did get right next to the Powerwall and try to connect to it (using the QR code/SSID and password on the label inside the Powerwall's Inverter box). Unfortunately, the the SSID (TEG-xxx) can't be found when I scan for it. I suspect it is disabled, or not working properly...
  37. S

    Using pypowerwall - how to get started

    Forgot to mention - the Powerwall is indeed functional. It gets charged up by the solar panels during the day, discharges at night, etc. The problem I'm trying to diagnose is low energy output from the panels. I suspect a string isn't connected correctly, so I'm trying to use pypowerwall to get...
  38. S

    Using pypowerwall - how to get started

    Hi All, I'm trying to do some basic diagnosis on my new Tesla solar installation, and to start off I have installed pypowerwall. The problem is that the program appears to need the IP address of the Powerwall. Unfortunately, my WiFi devices cannot see the Powerwall's WiFi. I can connect to the...
  39. S

    Problems connecting directly to Tesla Inverter and Powerwall

    I have two arrays/inverters, and had concerns that one wasn't working properly (i.e. I suspected the power output was really low). So I wanted to see its output separately from the total power output of the system that the app shows. I was able to get this info by connecting to the stand-alone...
  40. S

    Problems connecting directly to Tesla Inverter and Powerwall

    I do have powerline ethernet adapters I am not using, so if I decide to go the wired ethernet route, I will be sure to use them, thanks!
  41. S

    Problems connecting directly to Tesla Inverter and Powerwall

    Thanks, I just re-read the web page that describes how to connect to the inverter, and it says "The configuration interface of the Tesla Solar Inverter is available within 15 minutes of the system being powered on" - I thought it referred to literally the configuration interface, but I guess it...
  42. S

    Problems connecting directly to Tesla Inverter and Powerwall

    Thanks for the reply, this is very helpful!
  43. S

    Problems connecting directly to Tesla Inverter and Powerwall

    Hi All, new solar panel owner here. I have a 9.6kW system with one Powerwall and one stand-along Tesla inverter. I want to connect directly to them to get their status, rather than go through the app, but I have problems connecting to both. With the inverter, I was able to connect to its WiFi...

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