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Re:Spain hits first weekday of 100% renewable power on natio... by kv85s on Monday April 28, 2025 @07:40PM (#43827293)
Boy, did this not age well
Re:Spain hits first weekday of 100% renewable power on natio... by anenefan on Monday April 28, 2025 @10:41PM (#43828241)
That's a good achievement but energy grids have varying degrees of robustness. So a number of days later the grid went down, Spain and Portugal blackouts were making global headlines. The cause - TLRD version it seems like a cascade shut down all the interconnected power networks. From [1]

The Guardian

The Portuguese prime minister, Luís Montenegro, said that the issue originated in Spain. Portugal’s REN said a “rare atmospheric phenomenon” had caused a severe imbalance in temperatures that led to the widespread shutdowns.

REN said: “Due to extreme temperature variations in the interior or Spain, there were anomalous oscillations in the very high voltage lines (400 kV), a phenomenon known as ‘induced atmospheric vibration’. These oscillations caused synchronisation failures between the electrical systems, leading to successive disturbances across the interconnected European network.”

[1] https://joannenova.com.au/2025/04/days-after-spain-reaches-1...