Archive · 11 Aug 2025
Jellyfish Shut Down French Nuclear Plant Reactors
A nuclear power plant in France had to temporarily stop four of its reactors because a lot of jellyfish got stuck in the pipes that keep the reactors cool.
The company in charge said everything is safe, and there is no danger.
The plant is the biggest of its kind in Western Europe.
The plant is expected to restart the reactors on Thursday.
Scientists say this is happening more often because of changes in the environment, which makes jellyfish multiply more quickly.
A French nuclear power plant temporarily shut down four reactors due to a jellyfish swarm.
The jellyfish clogged the pumps used for cooling the reactors.
EDF stated the shutdowns did not impact safety or the environment.
The Gravelines plant is Western Europe's largest nuclear plant, with six reactors.
The units are expected to restart on Thursday.
- Who
- French energy group EDF.
- What
- Four reactors at the Gravelines nuclear power plant were shut down due to jellyfish clogging the cooling system.
- When
- The incident occurred, and the reactors are expected to restart on Thursday.
- Where
- Gravelines nuclear power plant in northern France.
- Why
- Jellyfish blocked the water intake filters, which is used for cooling, causing the reactors to shut down.
- Plant
- Gravelines nuclear power plant
- Reactors Shut Down
- Four
- Cause
- Jellyfish clogging cooling system
- Operator
- EDF
- Expected Restart
- Thursday
- Power Output of each reactor
- 900 megawatts
