In a Spanish investigation into the power outages that affected the Iberian Peninsula in late April, Sara Aijisen, Minister of Ecological Transition for Granada, Badajos and Seville, told Spanish representatives on Wednesday.
Granada’s substations were ground zero, and the blackout caused 2.2 gigawatts of power, resulting in a chain of grid cutting. The cause of the substation failure remains unknown at this time.
In his speech at the plenary session, Aagesen said the ongoing investigation has ruled out several hypotheses, including that the massive outage that began on April 28 was due to coverage, backup or network size.
The government is taking serious action to reach that bottom, Aagesen repeated. “The government is working together on rigour and has not made any hypotheses because the Spanish people deserve it. It’s rigour and truth,” she explained.
The findings are the first clear conclusions released more than two weeks after the power outages that have stopped in Spain and Portugal.
Aagesen said, “This remains a ‘very complicated investigation’ as millions of data are being analyzed.
At the same time, the Energy Minister noted that, according to available data, “two vibrations of the Iberian system were recorded with the rest of the European continent” 30 minutes before the blackout.
This observation is consistent with a preliminary report from the European Network of Transmission System Operator of Electricity (ENTSO-E), which pointed out “two periods and frequency fluctuations in the synchronized region of continental Europe.”
Aagesen ensures that the government will continue “relentlessly” to “identify the cause” of this “very complicated” incident, which “does not come with a simple explanation.”
