Hi. I am a novice ant this, and I am not getting a clear answer from my engineer who advises buying a new inverter. I own a multiplus 24v, 3000va that I have been using as a power back up for the AC grid, with batteries. Is it possible for me to add solar panels to this set up and set up the priority to Solar - Grid - battery as back up, what do I need to achieve this apart from the Solar MPPT charge controllet? I’m thinking of setting up 4 solar panels of 550 watts each