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Iberien Peninsular Blackout

Roger B

Any thoughts/information on what happened? Was it a lack of spinning reserve?

Was it " The Portuguese operator, REN, said the outage was caused by a “rare atmospheric phenomenon”, with extreme temperature variations in Spain causing “anomalous oscillations” in very high-voltage lines."

as is written in the Guardian?

Electricity restored to 90% of Spain and most of Portugal after massive power outage | Spain | The Guardian

The Italien blackout from a few years ago had a definate cause in the tripping of interconnetors from Switzerland during a storm.

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  • 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

  • in reply to davidwalker2

    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)  .

  • in reply to Philip Oakley

    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 Wink

  • in reply to Philip Oakley

    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 

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  • in reply to Philip Oakley

    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 

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