discharge higher than 3kw with ac coupled 3 phase

[Longtings]

hi guys i'm trying to get my head round the following setup
growatt TL3 5kW 3 phase string inverter 14 panels @ 395W
Spa3000 TL ac coupled controller - unless there is a alternative mcs approved one available
growatt ark 4x2.5's with bms

will i be able to draw 3 5 or 8kw with this setup please and why?

i ve been told 3kW from batteries only
and say 5kW from the array
customer wants to draw the 5kw from the batts is there a way i can do this
is it also possible to get 5+3 during the day from the batt and pv making 8?

thanks

 

[kropaske]

Your array is circa 5.5kw so in perfect conditions and taking into account all the loses, you may see 4.5-5kw at the inverter output. This will be balanced out across 3 phases.

10kw of batteries are rated for 100A @ 48V charge/discharge however this will be limited by the AC coupled inverter which have max output of 16A @ 230V and that is max what it will pull from batteries. If you want to pull full 100A (4.8kw) then you need inverter with bigger output.

So in a perfect conditions you can have around 4.5-5kw from the array and around 3.6kw from batteries.