Earlier quoted context omitted.
Can common rooftop solar setups actually deliver power locally with the grid being down? I would imagine them taking at least frequency synchronization from the grid, and probably also not faring too well without the grid to compensate for variable output when a cloud passes over them etc.
Batteries and inverters would be common in most installations, surly?
If all the power lines on earth went down, I bet communities would connect people with panels to people with batteries, though, somehow or another.