Hellenic Cables signs a contract with Energinet to deliver cables for a Sweden Denmark HV interconnection

Brussels, 22 November 2023

Cenergy Holdings announces that Hellenic Cables, its cables segment, has signed a new contract with Energinet.  This marks a significant step towards strengthening energy networks through the supply, installation, testing and termination of a cutting-edge 400kV interconnection cable system.

Under the contract, Hellenic Cables will be responsible for the supply of the cable system, the supervision of installation and testing, the jointing and termination works of a the 400kV interconnection between Denmark and Sweden.  Hellenic Cables will design, manufacture, and deliver 30km of submarine and 12km of underground 400kV single-core cables, reinforcing the backbone of the cross-border energy connectivity.

The contract includes the production of Extra High Voltage 400kV AC single-core submarine cables, and 400kV AC single-core underground cables which will be produced at the company’s manufacturing facilities in Greece.  More specifically, Hellenic Cables will produce the submarine cables at its state-of-the-art manufacturing facility in Corinth and the underground cables at the company’s specialized land cable factory in Thiva.  The production is scheduled to commence in 2023, with the delivery expected in the first half of 2024.

Kostantinos Savvakis, General Manager at Hellenic Cables, stated: “In 2017, Hellenic Cables achieved a significant milestone with the successful completion of the Oresund 132kV interconnection, a project that seamlessly linked Sweden and Denmark through the deployment of high-voltage submarine and land cables.  We are pleased to continue our partnership with Energinet, as we endeavor to connect Sweden and Denmark once again through high-voltage cables. This collaboration reaffirms the trust of our customers in our advanced cable solutions and our commitment to fostering efficient and sustainable energy connectivity between nations.”

Daniel Johan Brøndum, Senior Project Manager for Cables Energinet highlighted: “We are pleased to have signed this cable contract and that production has already started. We look forward to good cooperation on the project, which is a very important milestone for the security of electric power supply in Zealand.”

Energinet, in cooperation with Swedish Kraftnät, owns and operates the four Øresund connections connecting Zealand and southern Sweden in the form of two 400kV interconnections and two 132kV interconnections.  The Øresund links contribute to maintaining a high security of electric power supply, especially for Zealand.

About Energinet

Energinet is the Danish national transmission system operator for electricity and gas. It is an independent public enterprise owned by the Danish state under the Ministry of Climate and Energy. Energinet has 2000 employees and its headquarter is located in Erritsø, Jutland.  The main tasks are to ensure efficient operation and development of the national electricity and gas infrastructure as well as ensuring equal access for all users of the infrastructure. Read more about Energinet on

About Svenska Kraftnät

Svenska kraftnät is an authority in the form of a state-owned enterprise with the task of managing Sweden’s national grid for electricity, which includes power lines for 400 kV and 220 kV with stations and foreign connections. We also have system responsibility for electricity, which means that we monitor and are responsible for ensuring that there is a balance between produced and consumed electricity in the Swedish electricity system and that the electricity system’s facilities work together in a reliable manner. Svenska kraftnät develops the national grid and the electricity market to meet society’s needs for a safe, sustainable and economical electricity supply. You can find more information about Svenska kraftnät on our website:

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

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