Asso.subsea announces the successful completion of works for the Lavrio-Serifos and Serifos-Milos electrical interconnections, a project in collaboration with Hellenic Cables, led by IPTO S.A. (ADMIE).
With Phase D of the Cyclades Interconnection project, Milos and Serifos will be integrated into the mainland Power Transmission System, significantly improving electricity quality for the Cyclades islands year-round.
The project’s scope encompassed the installation, laying, and protection of two HVAC 150 kV submarine cables, with a larger cable cross-section used in shallow waters. The project necessitated four different landings. Services provided included geophysical and geotechnical surveys, seabed preparation activities, subsea cable laying, subsea cable protection, jointing installation, and landfall works.
The selected submarine cable route spans about 156 km, with a maximum water depth over 500 meters. The project utilized the majority of the Asso fleet, including Cable Laying Vessel Ariadne, Trenching Support Vessel Argo, Multipurpose Support Vessel Astrea, Multipurpose Support Vessel Alcyone, Anchor Handling and Supply Vessel Artemis, and Multipurpose Support Vessel Hydna, all supported by state-of-the-art equipment and burial tools such as the Assojet III Mk2 and the AssoTrencher IV Mk9.
This new interconnection significantly enhances supply security and addresses stability issues for the Cyclades’ electrical system through its connection to the Mainland Power Transmission System, while it facilitates the gradual decommissioning of outdated and polluting power stations currently in operation on Milos and Serifos.
“We are proud to contribute with our services to the energy integration of the Cyclades into the mainland system, supporting energy security, the island economy and the reduction of carbon dioxide (CO2) emissions in the country,” said Asso.subsea’s Project Director of Interconnectors, Mr. Giannis Kyrzidis.
This effort not only supports the region’s energy goals but also strengthens the infrastructure necessary for a sustainable and resilient future. Additionally, it complements other co-financed initiatives, enhancing the penetration of renewable energy sources and meeting specific energy and climate targets outlined in the National Energy and Climate Plan (NECP).
