Re: 350kW!!!!
"Embedded generation", things like solar panels on houses or a few kW of local batteries must always disconnect when there's major distruption on the grid, for safety reasons.
That's right, but it doesn't need to stop your solar system charging your EV. Or just topping up your domestic battery or thermal storage; systems are increasingly designed and set up to operate that way. As long as the inverter is properly disconnected from the grid mains there's no problem with 'island' mode inverters running autonomously and delivering power to whatever can use it.