By Eleonora Rinaldi and Oscar Pandiello ( June 18, 2025, 10:55 GMT | Insight) -- Multiple failures by power producers and Spanish grid operator Red Eléctrica caused the Iberian blackout on April 28, said the country’s energy minister Sara Aagesen at a press conference yesterday. As detailed in the investigation report commissioned by the Spanish government, the minister cited a lack of dynamic voltage control tools, improper disconnections by generation plants, and atypical oscillations as the three main causes behind the overvoltage cascade that overwhelmed the system and led to the unprecedented blackout.The April 28 power blackout in the Iberian Peninsula was “a phenomenon of overvoltage" caused by improper disconnections, lack of sufficient voltage control capability and unexpected oscillations, said Spanish energy minister Sara Aagesen yesterday*, as the Spanish government released its investigation report into the incident (see here)....
Prepare for tomorrow’s regulatory change, today
MLex identifies risk to business wherever it emerges, with specialist reporters across the globe providing exclusive news and deep-dive analysis on the proposals, probes, enforcement actions and rulings that matter to your organization and clients, now and in the longer term.
Know what others in the room don’t, with features including:
- Daily newsletters for Antitrust, M&A, Trade, Data Privacy & Security, Technology, AI and more
- Custom alerts on specific filters including geographies, industries, topics and companies to suit your practice needs
- Predictive analysis from expert journalists across North America, the UK and Europe, Latin America and Asia-Pacific
- Curated case files bringing together news, analysis and source documents in a single timeline
Experience MLex today with a 14-day free trial.