at a glance
We’ve been following IPTO’s island interconnection projects for six years, documenting each stage of a national transformation. Now, with the fourth phase underway, the Cyclades are entering a new energy era—one that reshapes the relationship between the islands and the mainland grid.
From Serifos to Santorini, new underwater cables and substations are replacing outdated oil-based systems. These are not abstract upgrades, they bring cleaner energy, fewer emissions, and lower costs for everyone. The connection now being completed between Milos, Folegandros, and Santorini is part of a 524 million euro investment that enables smarter load management, supports the integration of renewables, and unlocks the islands’ potential for growth.
