Overview

• A sudden 15 GW power loss on April 28 plunged Spain, Portugal, and parts of southern France into darkness, with most power restored by April 30.
• Spanish Minister for Ecological Transition Sara Aagesen stated that the investigation into the blackout's cause will require many more days, with all possibilities, including cyberattacks and photovoltaic failures, still being explored.
• The Spanish grid operator suggested an initial malfunction may have originated from photovoltaic installations in southwestern Spain, though officials caution against premature conclusions.
• Experts are evaluating whether a mismatch between electricity production and demand in the renewables-heavy Iberian grid contributed to the system's failure.
• Calls for increased cross-border interconnections, particularly with France, have intensified as a measure to enhance the resilience of the Iberian electricity network.