Overvoltage protection was triggered, disconnecting a series of power plants from the grid in the seconds before Spain and Portugal lost power in April. The core problem was the lack of requirements for voltage control, according to a new reportWithin 20 seconds, Spain lost more than 2 GW from wind and solar power. Over-voltage is the main known cause, according to the latest report from ENTSO-E. Sonya Twohig is the secretary-general of the organisation. Photo: ENTSO-EGridPublished 3 October 2025, 09:42Updated 3 October 2025, 09:42SpainEurope
Lack of control: What the experts say about the massive Iberian power outage
Overvoltage protection was triggered, disconnecting a series of power plants from the grid in the seconds before Spain and Portugal lost power in April. The core problem was the lack of requirements for voltage control, according to a new report
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