strings

Hi all, I'm looking for some insight on whether my panels are currently wired optimally for my situation. I don't have a background as an electrician or anything, so apologies in advance if I make any incorrect assumptions. I had my 18-panel (340W Qcells) system installed in September 2021. My...

Here is my layout, except the installer says they cannot fit all of the panels shown on the south side so they will move one to the east side. What is the best string for the east and west panels? I think without optimizer, the correct approach is to string 12 in the south together and then...