I am installing my own Solar System.. It will be an off grid using the the main grid panel to supply charging power. I bought everything from signature solar but I guess I asked too many questions because the young lady told me I needed to contact a professional solar guy. I asked them for a schematic but the one they sent me didn't make any sense. I'm using 6 ea 48V100AH Batteries, 15 ea 440W panels, a 12KW Growatt inverter connected to a GE 16 circuit panel. Does anyone make a schematic for this system. Thank you.