Comment by V__
I am no expert but remembering the grid outage in Spain this year, which was caused by a substation or node failure and not by a capacity problem. Wouldn't it be fair to describe resiliency as a combination of both capacity and nodes?
The Spainout was caused by having too little rotating mass in the grid that stabilizes the frequency.
There was a trigger in some of the PV systems, but that wasn't the underlying cause.