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St. George Wind Farm

Hellenic Cables-St. George Wind Farm


Turnkey project for the supply, transportation and installation of 36 km of 150 kV export cable.

Key Facts

Terna Energy
Location of the Project
Total cable length
36 km
Completed in
Cable Type
150 kV
Water Depth
Up to 230m


Terna Energy commissioned the project for the cable interconnection of the 73.2 MW wind park in the island of St. George, which is located in the sea area south of Cape Sounio. 
Terna Energy’s total investment amounted to Euro 150 million, having multiple energy and environmental benefits. The annual produced electricity correspond to the coverage of the energy needs of over 40,000 households per annum, while it contributes to the savings of over 60,000 tons of oil and the reduction of over 180,000 tons of emissions per annum.


Technical Information & Execution

Hellenic Cables manufactured 1 submarine export cable 150 kV with XLPE insulation and 2×24 optical fiber units integrated into the cable design which was installed at water depths up to 230m max. The cables were produced at the state-of-the-art vertically integrated facility in Corinth, Greece.

The contract included the supply of 37.4 km 150kV high-voltage submarine cable, the laying of the cable in depth up to 230 meters, the cable protection in the seabed along the whole route, and the implementation of the necessary terminations and connections to the existing high voltage grid in Lavrio. 

The project was successfully completed in 2016.

Hellenic Cables-St. George Wind Farm
Submarine Cables