On Monday afternoon, Spain and Portugal experienced a significant blackout due to a sudden drop in electrical frequency, leading to a loss of nearly 60% of energy in use. The interconnection with France automatically tripped to avoid a larger crisis across Europe. While the preliminary theory points to incidents at photovoltaic plants as potential causes, REE President Beatriz Corredor has cautioned against linking the outage directly to renewable energy. A thorough investigation is underway, with former REE president Luis Atienza emphasizing that the cause will be identified from recorded data.
Shortly after noon on Monday, something suddenly caused the frequency to drop below the usual 50 hertz, leading to the largest blackout in recent European history.
Everything that happens in the electrical system is recorded. So, with complete certainty, we'll be able to know where and what caused the blackout, underscores Luis Atienza, a former president of REE.
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