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Jellyfish swarm triggers emergency shutdown at French nuclear plant
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Fusion42 · 13 August 2026 · Fusion42 review
A swarm of jellyfish caused an emergency shutdown at a French nuclear power plant by clogging the cooling water intake systems. This incident highlights the vulnerability of nuclear plants to environmental and biological factors affecting their cooling infrastructure.
This Wire brief sits within Fusion42's coverage of Clean Energy, and 2 sources have reported it between 12 Aug 2026 and 13 Aug 2026.
◆ ◆ The Wire takeaway
Nuclear plant operators now face an overlooked biological threat to cooling systems that can halt operations abruptly. You need to assess your cooling system safeguards and environmental monitoring to prevent unplanned shutdowns from natural blockages.
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2 sources · first reported 12 Aug 2026 · latest 13 Aug 2026
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