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Blackout brings much of Spain and Portugal to a standstill, cause still unknown

Spain and Portugal were hit by a massive power outage Monday, knocking out subway networks, phone lines, traffic lights and ATM machines across the Iberian Peninsula. Spanish Prime Minister Pedro Sanchez said that a problem in the European grid but that the cause was still being determined.

Traffic lights stopped working following a power outage in downtown Lisbon, Portugal, Monday, April 28, 2025. © Armando Franca, AP

Traffic lights stopped working following a power outage in downtown Lisbon, Portugal, Monday, April 28, 2025. © Armando Franca, AP

A blackout brought much of Spain and Portugal to a standstill Monday, halting subway and railway trains, cutting phone service and shutting down traffic lights and ATMs for millions of people across the Iberian Peninsula.

Spain’s Prime Minister Pedro Sánchez said that a problem in the European grid that he described as a "strong oscillation” was behind the outage, but that the cause was still being determined. The Spanish leader asked the public to refrain from speculation and said no theory about the cause of the outage had been discarded. 

Spanish power distributor Red Eléctrica said that restoring power fully to the country and neighboring Portugal could take 6-10 hours. By mid-afternoon, voltage was progressively being restored in the north, south and west of the peninsula, the company said. The company declined to speculate on the causes of the huge blackout. 

Sánchez thanked the governments of France and Morocco, where energy was being pulled from to restore power to north and southern Spain.

 

© France 24

The European Commission said it was in contact with Spain and Portugal over the situation, while European Council President Antonio Costa said on X "there are no indications of any cyberattack".

The Portuguese National Cybersecurity Center also issued a statement saying there was no sign the outage was due to a cyberattack.

Eduardo Prieto, head of operations at Red Eléctrica, told journalists it was unprecedented, calling the event “exceptional and extraordinary.”

The outage hit across Spain and Portugal, including their capitals, Madrid and Lisbon. Offices closed and traffic was snarled as traffic lights stopped working. It was not possible to make calls on some mobile phone networks, though some apps were working. In Barcelona, residents walked into stores searching for battery-powered radios and civilians directed traffic at junctions along the Gran Via avenue that cuts through the city. 

The countries have a combined population of about 60 million people. It was not immediately clear how many were affected. It is rare to have such a widespread outage across the Iberian Peninsula. Spain’s Canary Islands, Balearic Islands and the territories of Ceuta and Melilla, located across the Mediterranean in Africa, were not impacted by the outage. 

Authorities said the cause was not immediately known, though one Portuguese official said the problem appeared to be with the electricity distribution network in Spain.

Spanish Prime Minister Pedro Sánchez convened an extraordinary meeting of Spain’s National Security Council and visited Red Eléctrica to follow efforts at restoring grid operations. Portuguese Prime Minister Luis Montenegro said he has spoken several times to Sanchez and expected power to be restored by the end of the day

The Portuguese Cabinet convened an emergency meeting at the prime minister’s residence.

Portugal’s government said the outage appeared to stem from problems outside the country, an official told national news agency Lusa.

“It looks like it was a problem with the distribution network, apparently in Spain. It’s still being ascertained,” Cabinet Minister Leitão Amaro was quoted as saying.

Portuguese distributor E-Redes said the outage was due to “a problem with the European electricity system,” according to Portuguese newspaper Expresso. The company said it was compelled to cut power in specific areas to stabilize the network, according to Expresso.

The blackout is the second serious European power outage in less than six weeks after a March 20 fire shut down Heathrow Airport in the U.K. and comes as authorities across Europe gird against sabotage backed by Russia

While the causes of the Iberian blackout were still being investigated, Teresa Ribera, European Commission executive vice president in charge of promoting clean energy, told Spanish journalists in Brussels there were no indications of a cyber attack in Monday’s power outage. which she described as “one of the most serious episodes recorded in Europe in recent times." 

Spain’s public broadcaster RTVE said a major power outage hit several regions of the country just after midday local time, leaving its newsroom, Spain’s parliament in Madrid and subway stations across the country without power.

A graph on Spain’s electricity network website showing demand across the country indicated a steep drop around 12:15 p.m. from 27,500 megawatts to near 15,000 megawatts.

Spanish airports were operating on backup electrical systems and some flights were delayed, according to Aena, the company that runs 56 airports in Spain including Madrid and Barcelona.

In Lisbon, terminals closed and throngs of tourists sat outside in the sun and the shade waiting for news about their flights.

“We haven’t seen any plane arriving or departing in the 50 minutes we’ve been waiting here,” Dutch tourist Marc Brandsma told The Associated Press.

Train services in both countries ground to a halt. Video aired on Spanish television showed people evacuating metro stations in Madrid and empty stations with trains stopped in Barcelona. Spain’s Transportation Minister Oscar Puente posted on X that it wouldn't be possible to restart trains later Monday, even if the power returned.

The Spanish Parliament in Madrid closed, and play at the Madrid Open tennis tournament was suspended. Three matches were underway when power went down.

Spain’s traffic department asked citizens to avoid using their cars as much as possible due to the power outage, which has affected traffic lights and electrical road signage.

Barcelona’s streets filled with throngs of people on sidewalks, milling about in front of darkened stores and offices and exchanging information on what had happened. 

Immediate concerns were which phone companies still had at least some spotty coverage, or where internet access might be found. Another concern was how to get home with the subway shut and public buses packed. Some took advantage of the lack of connectivity and transport to enjoy the sunshine on restaurant terraces. 

In Terrassa, an industrial town 50 kilometers (30 miles) from Barcelona, stores selling generators were out of stock after people lined up to buy them.

In Portugal, a country of some 10.6 million people, the outage hit Lisbon and surrounding areas, as well as northern and southern parts. Portuguese police placed more officers on duty to direct traffic and cope with increased requests for help, including from people trapped in elevators.

Hospitals and other emergency services in both Spain and Portugal switched to generators. Gas stations stopped working. 

Portugal’s National Authority for Emergencies and Civil Protection said backup power systems were operating.

Several Lisbon subway cars were evacuated, reports said. Also in Portugal, courts stopped work and ATMs and electronic payment systems were affected. 

(FRANCE 24 with AP and AFP)

Author: Editors Desk

Source: France 24

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