New here-glad I found this forum, need advice

Hello all, question regarding wattage on roof and whats shown on my Mate 3
I have a total of 21 panels for a total of 5805 watts. All panels professionally installed and angled in the correct long and lat.
The maximum I've ever seen with full sun midday is 4.5kW.
Does this mean that the overall system, inverters etc are using the rest or is there some setting I don't have right?
Thanks in advance.

Radian 8kW, Radian 4kW, 2 flexmax charge controllers, 48volt Trojan batteries, Mate 3, 5805 watts on the roof
I have a total of 21 panels for a total of 5805 watts. All panels professionally installed and angled in the correct long and lat.
The maximum I've ever seen with full sun midday is 4.5kW.
Does this mean that the overall system, inverters etc are using the rest or is there some setting I don't have right?
Thanks in advance.


Radian 8kW, Radian 4kW, 2 flexmax charge controllers, 48volt Trojan batteries, Mate 3, 5805 watts on the roof
Comments
That's about right. The power reduction is due mostly to panel losses due to heat, also wiring and in the charge controllers. It all adds up to about 23%. There are other losses in the battery and inverter efficiency, but that shows up as a difference in load consumption and production.
A very nice system by the way.
I have the GS4048A and am very happy with it.
Rick
KID #51B 4s 140W to 24V 900Ah C&D AGM
CL#29032 FW 2126/ 2073/ 2133 175A E-Panel WBjr, 3 x 4s 140W to 24V 900Ah C&D AGM
Cotek ST1500W 24V Inverter,OmniCharge 3024,
2 x Cisco WRT54GL i/c DD-WRT Rtr & Bridge,
Eu3/2/1000i Gens, 1680W & E-Panel/WBjr to come, CL #647 asleep
West Chilcotin, BC, Canada
You can look up the spec sheet for your panels, often they publish a NOCT value (Normal Operating Cell Temperature)