Jellyfish swarms knock out 3.2 gigawatts of French nuclear power | Fortune0

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• August 12, 2026

A “massive influx” of jellyfish has forced Electricite de France SA to shut three units at its Gravelines nuclear power plant and reduce output at a fourth, curbing power supply at a time when extremely hot weather is boosting demand. That’s taken some 3.2 gigawatts of capacity offline, with parts of the country forecast to see temperatures near 40C in the