ksmithaz1
Solar / EV Junkie
I know from testing the gen ports can (will) bridge to load/grid/bus with relays. So, power to the load lugs should be limited to ~50A, but not to the grid side/backfeed. The inverter was engineered to deliver 50A to the load lugs (12klv). If you need more than that you would want to parallel units. More of an engineering issue. If your critical loads panel is > 50A, you'll neet to get more AIO's. That output is not designed to be shared with another power source unless it's another eg4 inverter. You might get it to work with something else, but you may run into phasing issues.Not what the issue is.
Power is limited to 12Kw when AC coupled to the gen port.
The reason? A relay is present on the gen port to cut power from the AC coupled GT array as frequency shift isn't fast enough. The relay is limited to 12Kw.
That is how I see it. And Hedges explained it here.
If you are just trying to save money you can dump all of the excess back to the grid side and whatever you have connected there.