Electromec, working in partnership with Nari, was appointed provisional contractor for the Serifos high-voltage substation under Cyclades Interconnection Phase D. The consortium is tasked with delivering a new 150 kV GIS substation on Serifos island, providing detailed design, equipment supply and turnkey installation. The substation will connect the island’s 150 kV underground and submarine circuits into the Hellenic transmission grid, forming part of the wider Lavrio–Serifos–Milos–Folegandros–Thira–Naxos interconnection that includes the Naxos–Thira AC cable section.