Solar Panel Help

Diggers72

Hi

Just wondering if anyone knows why the three panels with the red dots on look different to the others. It isn't a permanent difference and only usually happens later in the day getting more pronounced as the day goes on.

Thanks

Heedtheadvice

Cannot say for sure but possibly moisture inside the panels?

Any change on generation levels?

Dave_Fowler

One of mine looked exactly like that when the glass cracked just like a toughened glass window.  It really showed up when the sun was shining obliquely to the panel.  The output from the panel was about 25% down on its neighbours (SolarEdge monitoring).

QrizB

Are they the other way around, ie. flipped horizontally? This would change the angle that the sun catches the silver(?) internal wiring and could make them look different at certain angles?

Have they always been like this, or is it a recent change? (Those panels look fairly new to me?)