Still seems a bit of misinformation. Outback has had "hybrid" inverters for over 15 years now. I have the FX3648 which allowed me to sell back to utility, charge from grid, auto-switch to backup when grid goes down, run completely off-grid, etc. It was also designed to mount onto a large metal mounting plate that also accepts AC breaker compartment on left side (space for couple dozen(?) breakers) and DC compartment on right side (about dozen breaker spaces including space for large 175A DC breakers). So all this existed long ago it's just in a better format today.