Lesley Carhart 
Watching Spain and Portugal very closely, but please don’t jump to conclusions. Lots of bizarre root causes in big power grids.
DCUplink
Matt Wilcox@hacks4pancakes 1960’s American power grid failure a prime example. It was a cascade collapse of the grid caused by some dodgy relays. To be fair; can’t imagine what else can take out a nation state’s grid other than a cascade collapse. https://youtu.be/XetplHcM7aQ
James Burke Connections, Ep. 1 "The Trigger Effect"
"The Trigger Effect" details the world's present dependence on complex technological networks through a detailed narrative of New York City and the power bla...
@mattwilcox indeed, certainly looks like that.
Adriano@hacks4pancakes @mattwilcox When a massive blackout happened here in Chile last February, the initial failure was compounded with lack of maintenance and testing. Had proper maintenance been done, the problem would not have lasted for days like it did.
Medea Vanamonde🏳️⚧️ ♀
j_angliss@mattwilcox @hacks4pancakes throw in 2003 as well.
https://www.youtube.com/watch?v=KciAzYfXNwU
Or Texas 2021 https://www.youtube.com/watch?v=08mwXICY4JM
What Really Happened During the 2003 Blackout?
wall-e@mattwilcox @hacks4pancakes there was a ~0.16Hz dip in continental european grid frequency at ~9:02am CEST and at ~12:32.
After the second one, the Spanish peninsula was apparently disconnected from the rest of the CE grid.
So it seems to me, the reason why the widespread outage occurred had less to do with the root cause of the problem and more with the grid disconnect, as the same frequency dip at 9:00am seems to have been handled by the CE grid "fine-ish".
Probably someone got nervous when the same problem seemed to reappear and they left Spain to figure their stuff out properly before coming back?
So I guess the more interesting question is what caused the two ~0.16Hz dips