Iberien Peninsular Blackout

It seems that the Iberian power outage was caused by a sudden loss of power at a Granada substation, triggering a cascading number of grid disconnections.

eandt.theiet.org/.../spain-and-portugal-blackout-traced-abrupt-loss-power-granada-substation

I like the "the origin has been identified, she confirmed that the cause has not yet been established" quote.

We know, but we don't ;-)

Didn't say what the substation was doing (where's the generation?). I could still believe that it was a cyber failure (not an attack!) equivalent to some signal cable transient fault.

It's likely to be more than one pre-cursor issue with many being latent for decades (e.g. there's a recent-ish case for a aircraft crash - Korean Air 631 - with long standing 'holes' in the operational safety)  .

Just to say that the BBC say that there's now a government report casting blame around https://www.bbc.co.uk/news/articles/c62d8k8edgxo "Spain's government blames huge blackout on grid regulator and private firms".

I'm sure more discussion will follow 

Just to say that the BBC say that there's now a government report casting blame around https://www.bbc.co.uk/news/articles/c62d8k8edgxo "Spain's government blames huge blackout on grid regulator and private firms".

I'm sure more discussion will follow 

Yes, it looks like insufficient reactive power support led to voltage rise led to groups of electrically adjacent generators tripping off. The system operator and the generators have already blamed each other, and now the government has blamed them both. I’m waiting for the ENTSO-E report