Chantiers de l’Atlantique, France Energies Marines, Fondation OPEN‑C, GE Vernova, Nexans, RTE and SuperGrid Institute are combining their expertise to prepare future high‑power, floating, high‑voltage direct current (HVDC) grid connections. The RHODÉ project aims to develop and test the key technological building blocks (transformer, gas insulated substation, offshore AC/DC converter station, dynamic HVDC cable) required for a first high-power floating connection. The project will deliver two floating substation designs, rated at 320 kV and 525 kV respectively. The project will help to establish a world-class French industrial sector for offshore wind power.