RTE acted as contracting authority (maître d’ouvrage) for the mutualised 225 kV grid connection for the La Narbonnaise floating offshore wind farms, covering the existing AO6 project (~250 MW) and the subsequent AO9 extension (~500 MW, i.e., Narbonnaise 2). The concept described includes an offshore electrical platform with three 225 kV submarine links to the landfall area near Narbonne Plage and three underground links to the Livière substation for connection to the French transmission network.