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85 years expertise in metal processing


Delivering sustainable growth


Delivering sustainable growth


Transforming the future


Building for a sustainable future


Hellenic Cables and Jan De Nul sign export cable contracts for Baltyk II & III offshore wind farms





Brussels, 10 October 2023


Cenergy Holdings announces that Hellenic Cables, its cables segment, has formed a consortium with Jan De Nul Group to design, manufacture, transport and install a package of four 220 kV export cables for the Polish offshore wind farms Baltyk II and Baltyk III.  Upon completion, these wind farms, developed by the joint venture of Equinor and Polenergia, will provide green electricity to more than two million Polish households.

Wind farms Baltyk II and Baltyk III are located in the Polish zone of the Baltic Sea.  Each of them will have a capacity of 720 MW and connect to the onshore grid via a total of four HVAC submarine cables, with a combined length of 256km.  Baltyk II and Baltyk III will be two of the first operational offshore wind farms in Poland, supporting the country in its transition to renewable energy.

With this project, Hellenic Cables and Jan De Nul continue their partnership for offshore cable works, following their recent collaboration on the RWE Thor project in Denmark and on TenneT’s DolWin Kappa project in Germany.  Hellenic Cables will be responsible for the design and manufacturing of the 220kV HVAC cables at their factory in Corinth, Greece, while Jan De Nul Group will transport, install, and bury the four export cables.  The connection of the two Baltyk wind farms to shore will conclude in 2026.

Alexis Alexiou, CEO of Cenergy Holdings, stated: “Hellenic Cables is proud to renew its collaboration with Jan De Nul and support together Equinor and Polenergia in their export cable needs for Baltyk II & III offshore wind projects.  We look forward to executing the project safely, thus helping the energy transition in Poland”.

Wouter Vermeersch, Manager Offshore Cables at Jan De Nul Group, commented: “We are proud that Equinor and Polenergia have awarded us to install the export cables for these 2 important Polish projects and their recognition of the combined capabilities of Jan De Nul and Hellenic Cables. This is a further significant milestone in the construction of the energy transition for Poland and Europe”. 


About Jan De Nul Group

Jan De Nul Group is a modern and innovative company that solves complex challenges of today’s society.  Our talented people develop sustainable solutions that contribute to the energy transition, securing the future of the next generation. 
Our expertise lies in five main activities: offshore energy, dredging and maritime construction, civil construction, environmental activities and project development. We enable the production of offshore energy and maintain the depth of waterways. We build new ports and create extra land. We realise complex infrastructure works and erect any type of building. We tackle pollution in whatever form. From design and engineering to the execution and maintenance, we unburden our clients with overall solutions that combine one, several or even all activities –


About Cenergy Holdings

Cenergy Holdings is a Belgian holding company listed on both Euronext Brussels and Athens Stock Exchange, investing in leading industrial companies, focusing on the growing global demand of energy transfer, renewables and data transmission.  The Cenergy Holdings portfolio consists of Corinth Pipeworks and Hellenic Cables, companies positioned at the forefront of their respective high growth sectors.  Hellenic Cables is one of the largest cable producers in Europe, manufacturing power and telecom cables as well as submarine cables.  Corinth Pipeworks is a world leader in steel pipe manufacturing for the energy sector and major producer of steel hollow sections for the construction sector.  For more information, please visit our website at