French state utility EDF is in talks with banks about a potential initial public offering of its Italian subsidiary Edison, according to sources cited by Reuters, in a move that could unlock billions in capital as EDF ramps up financing for its nuclear revival at home. EDF has begun sounding out major European lenders including BNP Paribas and Société Générale to assess investor appetite for a Milan listing that would value Edison between €7 billion and €10 billion ($8-11 billion). The group would likely retain…