off-grid solar system setup help

[Adam]

Hi everyone,

I'm new to the solar panel systems. The setup is an Off grid solar Ballarat.

I have 8x 100w mono panels (5,42a-18,51v) and want to get an MPPT controller for them.

how many amps the controller needs to be in order to get the most power from these 8 panels, and what will be that?

and also, how many 200ah deep cycle batteries are needed for this system? ...lets say I will need to use 2kw/day

thanks in advance.