What we know about Monday's sweeping power outage in Spain and Portugal
- On Monday, April 28, 2025, a sweeping power outage struck Spain, Portugal, and parts of Andorra and southwestern France, starting at 12:33 CEST.
- The outage followed two earlier disconnection events and coincided with over 50 percent solar and significant wind power output, which lack stabilizing inertia.
- The blackout disrupted essential services, including transportation, telecommunications, and hospitals, stranding over 35,000 passengers and causing several deaths in Spain.
- Experts observed that voltage fluctuations intensified through the morning, reaching swings of roughly 15 volts occurring every one and a half seconds, signaling a grid under increasing stress prior to its failure.
- Authorities are investigating a complex mix of causes, with no confirmation of a cyberattack, while the event highlights challenges in balancing electricity demand and renewable supply.
113 Articles
113 Articles

Susan Shelley: Can the enviros keep the lights on?
On Monday, the power went out in Spain and Portugal. It happened at 12:38 p.m. local time, when the grid was relying on solar and wind power for about 78% of the electricity in use. Monday afternoon, the director of Red Eléctrica, Spain’s grid operator, said the outage was caused by a “very strong oscillation in the electrical network,” which led the Spanish power system to “disconnect from the European system” followed by “the collapse of the I…
I lost power for 14 hours during the Spain blackouts. It felt like a 'Black Mirror' episode, but I learned a valuable lesson.
Hannah Duncan was in Granada, where she lives with her boyfriend, when the power went out on Monday.MIGUEL RIOPA/AFP via Getty ImagesHannah Duncan was caught up in Spain's country-wide blackout on Monday.She had no access to money or signal during the 14-hour blackout which brought life to a standstill.The experience made Duncan rethink what cash she carries, what she stocks and even her income.On Monday, at midday, I was on the phone with my bo…
When the Darkness Reveals the Truth
In Gaza, almost two years ago, there has been no stable electricity. There, the blackout is total: from light, from drinking water, from medicines, from humanitarian aid. And to this darkness is added a constant violence Just a few days ago, a blackout of less than twenty-four hours left millions of people in Spain, Portugal and France in the dark. An electrical failure — a simple parenthesis in our modern life — was enough for cities to be para…
Irish electricity experts watch closely as Spain tries to unravel mystery of Monday’s catastrophic power outage
As Spain’s electricity authorities came under pressure for assurances that this week’s massive power outage wouldn’t happen again, a key question remained: what was it they had to ensure wouldn’t recur?
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