Skip to content

Europe's Worst Blackout in 20 Years: Overvoltage Causes Massive Power Outage in Spain and Portugal

Overvoltage, a rare cause of power outages, left millions in Spain and Portugal without power for hours. Authorities now face the challenge of preventing such incidents in the future.

In this image we can see electric poles, electric cables, buildings, chimneys, trees and sky with...
In this image we can see electric poles, electric cables, buildings, chimneys, trees and sky with clouds in the background.

Experts: Overvoltage during power outage on Iberian Peninsula was 'first of its kind' - Europe's Worst Blackout in 20 Years: Overvoltage Causes Massive Power Outage in Spain and Portugal

On April 28, a severe power outage hit the Iberian Peninsula, affecting all of Spain and Portugal. This was the most significant blackout in Europe in the past two decades, causing widespread chaos and disrupting major traffic and telecommunications systems.

The cause of the outage was identified as an overvoltage, an electrical voltage that was too high. This is the first known blackout caused by overvoltage. The exact trigger is still under investigation, but it led to a voltage surge that collapsed the power grid. Possible causes of overvoltage include an excess of electricity, lightning strikes, or failing or inadequate protective systems.

The overvoltage also briefly affected Southwestern France and Morocco. The power outage in Spain and Portugal was so severe that it left millions of people without power for hours.

The Iberian Peninsula's power outage on April 28 was a stark reminder of the potential consequences of overvoltage. As investigations continue, authorities aim to prevent such incidents in the future. The event highlighted the importance of robust protective systems and the need for further research into overvoltage causes and prevention.

Read also:

Latest