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Panel discolouration - sign of a problem?

elbreeno
in Photovoltaics (PV)

Featured Replies

Hi everybody

 

I moved into a new build a couple of years ago and it has a small PV array on the roof. One of the panels (top middle on the pictures) has a light patch on it - as if it’s been internally damaged.

 

Does anybody know whether this is a sign of a problem? All comments much appreciated!

 

 Thanks

 

 Tom

61DF635C-E170-4AC5-AFC4-8C4B26A27A97.jpeg

8036AFD3-8089-4059-B940-436EE4BABE43.jpeg

It almost looks like oxidisation washing down from the flashing above. Panels tend to darken if overheating - not go lighter.

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