I currently have a 6.8kw system (20x340 Q Peak Duo) I had installed a few years ago with a solar edge inverter SE6000H (grid tied). I was told that I can't just swap inverters. So I'm asking for information on what I would have to do specifically to hook up these panels to a EG4 18k Inverter. These companies want stupid money and also want to sell me a new system.