PV Solar Panel System not generating power

[GS Electrical]

PV System not generating half as much as it did any suggestions???????

 

[amlu]

dirty panels? time to give them a wash.

 

[stratplus]

PV System not generating half as much as it did any suggestions???????

Lack of sunshine

 

[Gavin A]

more info needed.

if it actually is down by half, then chances are it's dual string, and one string has failed, maybe down to a connector fault or similar.