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France's EDF maintains Flamanville 3 ramp-up schedule despite additional maintenance

EDF, the French state-owned power group, said Tuesday that it expects its Flamanville 3 nuclear reactor to reach full capacity by mid-2025 despite ongoing problems with the water cooling circuit.

Data published by France's utility on Monday shows that the reactor will now be expected to return after maintenance on April 11, which is two months from the start of the outage.

In an email to the group, it said that the shutdown had been extended in order to perform additional maintenance on the nuclear portion of the installations.

EDF stated that the initial shutdown was caused by a decrease in flow rate on the reactor's cooling system. This was followed by adjustments to the rotors on the turbo alternator groups. The result of these adjustments won't be visible until the production unit has been reconnected.

The maintenance work is part of the ramp-up production of the new generation reactor. Full output should be achieved this summer.

Flamanville 3 finally connected to the grid in December last year after 12 years of delays. It will be able to generate 1.6 gigawatts per hour. This is France's biggest reactor.

EDF has only completed one French reactor in the past 25 years, Flamanville 3.

The French utility, which is heavily indebted, is looking for funding to build six new EPR2 reactors as part of a project that was first proposed by President Emmanuel Macron 2022. (Reporting and editing by Kim Coghill; Forrest Crellin, Alban Kacher)

(source: Reuters)