The Flamanville 3 reactor has achieved 100% of nuclear thermal power, generating 1,669MW of gross electrical power on December 14, 2025. This milestone was reached following approval from the French nuclear safety authority to exceed the 80% threshold. Testing at full power will now be conducted to ensure proper functionality. EDF and its partners have worked diligently to ensure the safe start-up of the reactor. EDF is a key player in the energy transition, focusing on low-carbon energy production and investing in new technologies to support the transition towards a net zero energy future.

Read more at GlobeNewswire: EDF: Update on the Flamanville EPR: the reactor has reached