nuclear-news

Turbine, cooling: these unforeseen events that keep the Flamanville EPR at a standstill.

EDF is extending an unscheduled shutdown of the Flamanville EPR until the end of March in order to make adjustments to the turbine. During its first 100 days of operation, the nuclear reactor will have undergone 76 days of maintenance.

By Amélie Laurin, March 6, 2025

EDF had warned: the ramp-up of the Flamanville EPR, the first nuclear reactor to be commissioned in France in twenty-five years, would be very gradual. The public group has once again shut down, for a month and a half, its Normandy pressurized water reactor, which had been connected to the electricity grid on December 21, the first day of winter.

These maintenance operations were not planned and are the result of technical difficulties. They began on February 15 and are due to continue until March 30, after being extended three times.

Turbine heating

This work follows two initial suspensions of electricity production at Flamanville, between Christmas and mid-January, and at the turn of February. Two shutdowns that were, themselves, scheduled. In total, the reactor will have been immobilized for 76 days, during its first 100 days of operation.

The cause: various technical adjustments. In mid-February, the EPR stopped producing electrons due to an insufficient water flow in the seawater cooling circuit, which is only used “in exceptional situations”. This was followed by an intervention “on a temperature probe of the main circuit”, specifies a regulatory press release.

March 11, 2025 - Posted by Christina Macpherson | climate change, France