Greece completes grid connection of the Cyclades islands

Greek transmission operator IPTO/Admie completed the fourth and final phase of the Cyclades interconnection: 294 km of 150 kV subsea and underground cables (depths up to 500 m) plus four digital substations link Santorini, Folegandros, Milos and Serifos to the mainland grid. Phase D cost €385.7 million, the overall project since 2018 about €825 million (funded i.a. by the EU Recovery Fund and an EIB loan); the islands can now retire their diesel generators.