Spain’s grid operator, Red Eléctrica, has criticized large power plants for failing to regulate the electricity system before a significant blackout that affected 60 million people. Beatriz Corredor, chair of Redeia, stated that certain gas, nuclear, and hydroelectric facilities did not meet voltage control requirements, while plant owners attributed the outage to insufficient grid investment and a lack of demand stimulation. The debate continues as experts identify voltage surges as a key factor, with calls for improved grid infrastructure to support the country’s increasing reliance on renewable energy sources.