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The French Flamanville 3 reactor will not be producing until October

EDF, the operator of France's Flamanville 3 reactor, said that it is experiencing further delays in maintenance and will not be able to restore production until October 1. Full power is not expected until mid December.

The reactor started operating in September 2024. This was 12 years later than initially planned. It cost about 15 billion euros, four times its original budget.

EDF explained that the latest delay was a precautionary measure to test a safety valve intended to protect the primary circuit of the reactor. These valves are designed to open when there is a sudden pressure surge and then close once the pressure has stabilized.

A spokesperson for EDF said that the nuclear output expected by the company, which was higher in the first half year than expected, has not been affected.

Flamanville 3, the largest French reactor, is the only French nuclear reactor completed by EDF in the last 25 years. It is expected to generate about 1.6 gigawatts per hour.

As part of a 2022 project proposed by President Emmanuel Macron, the heavily indebted French electric utility seeks funding to build six new EPR2 reactors. ($1 = 0.8654 euros)

(source: Reuters)