In France, jellyfish have knocked out one of the country’s largest nuclear centrals. Yes, the same jellyfish you are on the beach. Although it sounds delusional, the company Électricité e France (EDF) has acknowledged that an incident with these jelly and transparent celentéreos has forced to pause four of the production units of The Gravian Plantlocated north of the country.
The most surprising thing is that it is not something exceptional.
What happened? The news has been given by EDF itself, which in A statement Posted yesterday explains that the Gravelines Nuclear Power He has seen how four of his six production units went out for a peculiar motive: jellyfish.
The first three units (2, 3 and 4) were automatically disconnected on Sunday night following security protocols to protect the reactor. The fourth (unit 6) also automatically went out on Monday.
What happened exactly? EDF is quite clear In this regard. The stops are explained by “the massive and unpredictable presence” of jellyfish in the drums of the pumping stations, located in the non -nuclear part of the plant. What happened is best understood by remembering that gravoras, a of the largest centrals From France, it is refrigerated with the help of a channel connected to the North Sea.
The plant has water pumping stations that allow it to refrigerate the reactors. The jellyfish were located precisely in filters that are responsible for aspiring sea water to control its temperature. The four units that went out automatically (2, 3, 4 and 6) are also added to production units 1 and 5, which already They were disabled For maintenance work.
Was there any danger? EDF too It is clear At that point. He assures that at no time there was danger and that what happened did not affect the safety of the facilities or meant any risk for the template or the environment. “The plant equipment has mobilized and perform the necessary diagnoses and interventions to restart the production units safely,” guarantees.
At first He pointed out that the affected units could be operational again on Thursday, but Reuters slides That the schedule may not be fulfilled: the idea was to restart the four units today, but in principle it will only one. The rest will resume the activity little by little, progressively, until Friday.
What jellyfish were they? The operator has not clarified it, but the Reuters agency holds that is about Pulmo rhizostomaalso known as Aguamala. Its presence in Gravelines could be explained by two factors: first the temperature of the sea, higher this summer, which favors jellyfish flowers and that these remain longer in the North Sea; Second, the force of the currents, which would have pushed the banks towards the channel and the central.
Is it the first time that happens? No. It is not usual, but neither was it out of the ordinary. Gravelines already lived something similar In the early 90s and there are other plants distributed throughout the world that have encountered similar problems. Swiss Info appointment Specifically, US facilities, Scotland, Sweden and Japan, which would also have suffered them last decade. Its proliferation is explained by water warming and The overfishingwhich has punished tuna banks.
In this case, jellyfish have affected a relevant plant for France, equipped with six units that produce 900 megawatts of energy each, near 5.4 Gigawatts in total. The idea is that from 2040 shelter two EPR2 reactors.
Images | Joel Filipe (UNSPLASH), EDF and Wikipedia
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