Jellyfish Swarm Forces Multi-Reactor Shutdown at Gravelines Nuclear Plant
A swarm of jellyfish clogged cooling pumps at EDF’s Gravelines nuclear power station in northern France, prompting the shutdown of three of six reactors and reducing a fourth to half output, leaving one reactor online. EDF said safety and the environment remain unaffected, with on-site teams and preventive fishing patrolsSteps underway to reconnect the plant to the grid and reduce future pump blockages.