Six weeks after Spain and Portugal suffered a massive power outage, authorities in Madrid said the blackout was caused by technical and planning errors. Spanish ecological transition minister Sara Aagesen,

In April, a massive blackout paralyzed Spain and Portugal for hours. A new report has revealed the cause.

Spanish grid operator Redeia disputed the findings of a government report that said failure by the operator to calculate the correct mix of energy was one of the factors that led to a massive blackout in Spain and Portugal on April 28.