I'm would not be affected by this, being off grid with solar panels. :D but I understand the challenge that using solar energy in a national grid.

This is what I think has happened: Solar energy is less stable than other generation systems. Sometimes there is sun, sometimes not, therefore they must be injected into the grid in such a way that they synchronize with the existing frequency generated by more stable sources like nuclear or gas plants. The problem was that during the blackout, 80% of the electricity generated came from solar sources, while nuclear and gas plants were offline. It is possible that oscillations in frequency or voltage within the systems responsible for maintaining the base frequency triggered a cascading failure, causing all solar panels to disconnect simultaneously. I believe this happens to protect the equipments. So if 80% suddenly goes out, the other generation systems don't have time to react. And starting it all again from a blackout is not easy.

I think this situation will teach electrical engineers valuable lessons. To mitigate such risks, greater investment in advanced inverters and robust battery storage systems may be necessary to ensure solar energy can integrate more effectively with the grid. You cannot simply put some solar panels and connect them directly to the grid without significant battery systems. Maybe that's the problem. But who knows?

The government has yet to issue an official statement regarding the causes of that blackout. It is rather unfortunate that they are not even providing any information, let alone clarifying whether the situation could occur again today or tomorrow.