Greece Announces Second HVDC Cable System worth EUR 1.42 Billion

The second Greek HVDC cable system will be 380 kilometers long and will have a transmission capacity of 1 GW. With a total budget of EUR 1.42 billion, the project will enhance the security of energy supply, and support the green transition of the Greek islands. The budget for the cable section of the interconnection is EUR 630 million.

Nov 19, 2024

Greece’s transmission system operator, Independent Power Transmission Operator (IPTO or ADMIE) has announced the country’s second high-voltage direct current (HVDC) cable system, a project that will integrate the Dodecanese Islands into the mainland high-voltage grid.

The Corinth-Kos electrical interconnection will cover the design, supply and installation of HVDC cable systems and two converter stations, which will be built at both ends of the interconnection. 

This second Greek HVDC cable system, following the Crete-Attica interconnection, will be 380 kilometers long and will have a transmission capacity of 1 GW.

Watch: Systematic Group

With a total budget of EUR 1.42 billion, the project will enable the gradual phase-out of oil-fired plants, enhance the security of energy supply, and support the green transition of the Greek islands, IPTO said.

The budget for the cable section of the interconnection is EUR 630 million, and EUR 789.1 million for the converter stations. The duration of the construction phase is expected to be 36 months from the signing of the contract. 

The project has been selected for funding from the Island Decarbonisation Fund. Six autonomous electrical systems of the Dodecanese Islands – Karpathos, Rhodes, Symi, Kalymnos, Patmos and Arkia – will then be connected via the Corinth-Kos interconnection.

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ADMIE’s President and CEO Manos Manousakis, said, “The Corinth-Kos interconnection will, for the first time, connect the Dodecanese with the continental high-voltage system, paving the way for the full utilization of the onshore and offshore renewable potential of dozens of islands. The new round of inter-island interconnections in the Dodecanese and the NE Aegean has already opened with the soon-to-be-completed tender for AC submarine cables. As our ten-year investment plan foresees, by 2030 all the country’s major islands will now be interconnected with the mainland, through modern and durable electrical infrastructure.”