I think I just observed a new record:
View attachment 204332
5.98kW from 24 used panels 260W.. that's
5980/24/260 = 96% of the official rating.
It's even more surprising given that I believe two panels in string 1 to be defective, or what would you conclude?
View attachment 204333
Each string has 12 panels. But string 1 always has about 60V less than string 2 (zero shade, all mounted the same way).
Interestingly, frequently string 1 makes up for some of the loss with higher current.
Sometimes both strings have the same power (W) but 20% difference on voltage.
Edit: I just got myself a thermal imaging camera, and will review the panels soon with it.