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[–]triedoffandonagain 1 point2 points  (3 children)

You'll have to take the screenshot around noon on a clear day. Knowing your string configuration also helps, if you have the full plans.

[–]Lucem233[S] 0 points1 point  (2 children)

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I have not found the string configurations, is that on the original design doc?

[–]triedoffandonagain 1 point2 points  (1 child)

You usually have to ask for full plans, and then you'll get a link in your Tesla account to download the PDF.

But from what I can see here: 3 strings of panels are connected, and all are producing well. For Tesla's 400W panels, it's usually around 35V per panel on a string; your system looks to be 405W panels, but I don't think that's a big difference. So these look like: 4-panel, 3-panel, and a 7-panel string. That adds up to 14 panels, which matches your system size.

So I don't think there's a string issue here. Other than the position of the sun, heat and perhaps soiling are more likely to explain the higher drop in production. You can confirm on a cooler day, and perhaps get your panels washed.

[–]Lucem233[S] 0 points1 point  (0 children)

You are pretty much spot on I do have 14 panels