Jellyfish force partial shutdown of Gravelines nuclear reactors
An unusually large number of jellyfish entered the seawater filtration system at the Gravelines nuclear power station, causing multiple unit outages and reduced output. EDF said two units were shut on Wednesday and Thursday, a third has been offline since 10 August, and a fourth is closed for inspection; units three, four and six are now shut while units one and two run at reduced power. Each of Gravelines' six units produces 900 megawatts and the station uses a canal tied to the North Sea for cooling. Authorities have used measures including a fishermen partnership to move jellyfish offshore.
Multiple Gravelines reactors were taken offline due to jellyfish clogging cooling filters
Context
Warm weather raised plankton and drew jellyfish near shore. The jellyfish clogged the plant's seawater filters and caused reactor shutdowns. Officials may inspect filters and keep preventive measures such as working with fishermen.
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