FDF70AU

Ive got 8x620w and 4kw round about is my max now. Roughly 80%
 
Ive seen earlier last month 4.3kw so Id say ... Wait for the sun to raise up more.
 

20% is about right this time of year...as mentioned, give the sun some time to climb higher. At 30deg tilt you'll be styling around September;-)

Good day,
This is a fantastic forum. I have learned a lot already.
It may be because it is winter, but the maximum production I have gotten from my PV so far has been 2.3kWh at peak time, with no clouds. 
Is there a way to determine whether they are all producing correctly unless it is normal to have a 14% or 15% reduction in real-life situations on the projected 455W x 6 (or 2.73kWh)?
Is any information available on the app (I use Solarman Smart) which may indicate the output of each panel separately?
I must also add that I have a CT coil installed, and my setting at this point in time is Zero Export to CT (Load first). Not sure whether it has anything to do with panel production but I add the info anyway.
Thank you in advance for any reply