IPTO S.A. awarded ABB a contract, later formalised in a tripartite agreement with IPTO and HEDNO, for the supply of equipment and installation of a new 150/20 kV GIS onshore substation on Skiathos as part of the Mantoudi–Skiathos (Euboea–Skiathos) interconnection. The approximately EUR 9.5 million construction-phase contract covers delivery of the high-voltage GIS and associated substation systems and their turnkey installation on the island, enabling Skiathos and the wider Northern Sporades to be connected to the 150 kV mainland transmission system. ABB’s role focused on manufacturing the substation equipment and executing the on-site construction and commissioning works required to bring the new GIS substation into operation.