# Jellyfish swarm shuts three reactors at France’s Gravelines plant 2026-08-15T12:28:27+00:00 | World & Diplomacy | Indian Opinion Desk Corroboration: 1 independent outlet A large jellyfish swarm forced EDF to shut three reactors at France’s Gravelines nuclear plant and halve output from a fourth after the animals clogged seawater cooling equipment. A fifth reactor was already under planned maintenance, leaving one of the six units operating at full capacity. Each reactor can generate about 900 megawatts. Gravelines draws seawater from a canal linked to the North Sea. EDF said the incident posed no threat to workers, plant safety or the environment. Fishing boats helped reduce the swarm, while vacuum trucks cleared jellyfish from the system. Cameras installed after a wider outage last year are being used for early warnings. The affected reactors could restart after inspections if no new jellyfish are detected. ## Coverage - timesofindia.indiatimes.com Tags: EDF, France, Gravelines Nuclear Power Plant, North Sea Canonical: https://indianopinion.org/jellyfish-swarm-shuts-three-reactors-at-frances-gravelines-plant/ License: Summary and commentary (c) Indian Opinion, reusable with attribution. Facts belong to the linked sources. Cite: https://indianopinion.org/jellyfish-swarm-shuts-three-reactors-at-frances-gravelines-plant/#story-in-brief Review state: restored archive article, accurate at time of publication, not offered to search indexes.