I suspect that someone does know and they don’t want to say.
A sweeping power outage left millions of people in Spain, Portugal and parts of France without electricity on Monday, leading to chaotic scenes and widespread disruption.
A problem with the power connection between France and Spain was a contributing factor to the outage, the head of a trade body that represents Europe’s power industry said.
[…]
Mr Ruby said this “meant the Spanish grid was disconnected from the broader European grid”.
He added that the interconnector incident was unlikely to have caused the outage on its own and that there were “likely to have been other elements in this equation”.
A day of widespread disruption saw trains cancelled and evacuated in some regions, and traffic lights stop working as delays mounted at airports.