US Edition'Perfect Storm' Behind 2025 Iberia Power Blackout, Experts Say
The blackout resulted from voltage fluctuations and monitoring gaps, with widespread renewable disconnections; experts recommend automated voltage management and improved real-time monitoring.
- The expert panel's final report, released Friday, concluded last year's blackout in Spain and Portugal was caused by a 'perfect storm of multiple factors' and reaffirmed earlier findings.
- Experts found the blackout started with uncontrolled overvoltage events, identifying an inability to control these and voltage fluctuations that disconnected converter-based systems.
- The outage left cities without internet or trains for up to 10 hours, cutting links and halting businesses across Spain and Portugal while operators reduced exports to France but could not stop shutdowns or disconnections in Segovia, Huelva, Badajoz, Seville and Caceres.
- Investigators called on regulators to adapt regulatory frameworks by requiring renewable installations to support grid stability and adopting automated voltage-management systems.
- The government rejected suggestions linking the blackout to renewables reliance, while investigators noted missing data prevented pinpointing the initial surge, and overvoltage causes remain unclear.
15 Articles
15 Articles
The final report of ENTSO-E leaves no room for interpretation: solar and wind power did not cause the electrical collapse of 28 April 2025, despite months of accusations, alarmist headlines and political noise. What really failed was something much more uncomfortable to admit: the management of the network. A technical problem known for decades, ignored in its adaptation to the new energy system, and which is now exposed as the real responsible …
'Perfect storm' behind 2025 Iberia blackout: experts
Last year’s paralysing blackout in Spain and Portugal was caused by a “perfect storm of multiple factors”, according to a final report by an expert panel published Friday. The April 28 outage raised doubts about Spain’s high dependence on renewables and planned phaseout of nuclear energy, but the leftist government and some experts have rejected claims that they exposed the power grid to a blackout. The report commissioned by the association of …
It was a perfect storm of factors that caused power outages in the Iberian Peninsula last year.
International experts present a list of 22 recommendations to ensure that energy supply does not fall again
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