Maverick

I have a question regarding the battery and pv power that baffles me a bit. During the day when I have max output and my battery is set to Time of Use and I allow it to feed my system it first uses max power from the battery and the remaining power required from the pv, when I turn off the time of use then it uses max power on my pv and the rest from the grid. My question is why does it not use max panel power and the remaining from the battery during peak sun? Why is it using max from the battery and the remaining from the pv? Is that normal?

The installer came back this morning, split the 1 string of 10 panels into 2 strings of 5, output is basically the same as before but voltage it much safer and within range. So my mind is more at ease now. Tilt of the panels is basically that of a normal tile roof, not sure if I should mess around with the tilt and the possibly in summer the yield drops because of this?

Thanks gents, I have asked the installer to come back and split them into two strings of 5 panels and see what the results are then. Max voltage thus far is 480V and that makes me a bit uncomfortable. I know the optimal operating voltage for the MPPT is 370V but is there any loss below this for the 125V minimum to the 370V optimal value? Or will that work fine? Location is Centurion in Gauteng and panels are north facing, all 10 of them. Peak operating output on them is between 9am and 3pm, after that they start producing much less. But max I have seen on the array is 3.6KW which is far less than I had hoped. What I can see is that when the PV array voltage goes over 425V I then start dropping off from the 3.6KW down so sub 3KW output, scratching my head a bit at it all.

@RabidBunny do you know if the voltage limit on the Deye 8KW inverter of 425V is per MPPT or per string into the MPPT? As far as I understand each MPPT can take two strings of panels, does it combine this and then have a limit of 425V per string or total? My system is a Deye 8KW with 10 panels of 455W which have a voltage of +-49V per panel all connected in series. So total voltage of +-490V, which come into a single MPPT via the + and - cables from the panels. So am I exceeding the MPPT tolerance? My max output is 3.6KW that I have seen. Which is far too little. This was all done by an installer, I am not getting the desired output from my panels and thus I am now checking everything myself. Thanks!