Razel-Bec was appointed as a civil and installation partner to Hitachi Energy for the Sa.Co.I.3 HVDC project connecting Sardinia, Corsica and Tuscany. In collaboration with Hitachi Energy and Pellegrini, Razel-Bec will provide civil engineering and construction services for the new onshore HVDC converter stations, including site preparation, building works and support to equipment installation. This contribution is part of the integrated EPC scope for replacing the existing SACOI converter infrastructure with a new multi-terminal HVDC Light system, enabling higher-capacity and more reliable power exchange between the Italian mainland and the islands.