Technical FAQs 4

What happened in Portugal during a power outage?

Hospitals stopped procedures and used generators to administer to patients. Around 12:15 p.m., demand for electricity in Spain dropped from 27,500 megawatts to nearly 15,000 megawatts in about 5 seconds. Portugal’s outage hit its capital, Lisbon, and surrounding areas, as well as northern and southern parts of the country.

Why did redeia power outage happen?

Redeia said on Wednesday that a surge in voltage was the immediate cause of the outage but blamed it on conventional power plants failing to control the voltage level. It pointed instead to anomalies in the disconnection of power plants on April 28 and an unexpected spike in electricity demand from the transport network.

How many people are affected by a power outage in the Iberian Peninsula?

It is rare to have such a widespread outage across the Iberian Peninsula, with a combined population of about 60 million people. Spain’s Canary Islands, Balearic Islands and the territories of Ceuta and Melilla, located across the Mediterranean in Africa, were not affected.

Why did redeia shut down a power plant?

Voltage - the force that drives electric current - must be kept within a safe range to maintain grid stability. Redeia said on Wednesday that a surge in voltage was the immediate cause of the outage but blamed it on conventional power plants failing to control the voltage level.

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