France, April 1 -- The European Commission investigation will reportedly look into concerns that French state aid could reinforce EDF's market power and see Paris shoulder too much of the multibillion-euro project's investment risk.

"The European Commission has opened an in-depth investigation to assess whether public support that France plans to grant for the construction and operation of six new nuclear reactors is in line with EU state aid rules," Brussels said in a statement.

The nuclear recovery program announced in 2022 by France's President Emmanuel Macron provides for the construction of six new generation reactors known as EPR2 - with a total capacity of just under 10,000 Megawatts. They will be built in three pairs at three ex...