I’m a little wary of plug-in solar in the US. Some of the bills propose allowing 1200 watt panels which can overload wiring depending on what else is on the circuit and how in the wall wiring is run. Limiting plug-in panel wattage to, say, 400 watts might be necessary
Hm. Imprecise on my part.
The panels aren’t the concern. It’s stored energy in the battery that can be dumped onto the grid, along with the stored energy of other compromised systems.
The article I linked outlines a scenario like what I’m describing being possible with EV’s that have had their chargers hacked.