Hellenic Cables awarded Lot A of IPTO framework agreement for Greek island interconnections

Athens, 25 June 2026

 Hellenic Cables, the cables segment of Cenergy Holdings, through its wholly owned subsidiary Fulgor S.A., was awarded a framework agreement by the Greek Independent Power Transmission Operator (IPTO) for Lot A of the electrical interconnection of the Dodecanese and North Aegean islands in Greece of a total value ca. EUR 1.15 billion.

Under Lot A of the agreement, Hellenic Cables will undertake the Engineering, Procurement, Construction and Installation (EPCI) of four (4) interconnections, namely Thraki–Limnos, Kos–Rodos, Lesvos–Limnos and Lesvos–Chios. The total extent of all four (4) projects consists of approx. 694 km of 150 kV AC submarine cables and 227 km of 150 kV AC underground cables. Production is expected to commence in 2027, with project completion targeted until 2031.

The awarded interconnection forms part of IPTO’s strategic program to strengthen the integration of the Greek islands into the national transmission system and support the country’s energy infrastructure. The Dodecanese and North Aegean power interconnection is critical to the stability of the Greek power system, as it addresses the fragmentation of isolated island grids by integrating them into the mainland network.

This significantly enhances reliability and security of supply, while strengthening the system’s ability to balance demand with renewable generation across the country.

The submarine cables will be manufactured at the state-of-the-art manufacturing plant of Hellenic Cables. in Corinth, Greece, while the underground ones will be manufactured at the company’s plant in Thiva, Greece. Following recent investments, both facilities operate at expanded capacity, further strengthening Hellenic Cables’ ability to support large-scale transmission interconnection projects.

The signing of the framework agreement is subject to customary statutory conditions and approvals, and its execution is conditional upon the issuance of a notice to proceed by the customer.

Alexis Alexiou, CEO of Cenergy Holdings, stated: “This project reflects the trust placed in Hellenic Cables’ ability to deliver complex and strategically important transmission projects. The interconnection of Greece’s islands is a key component of the country’s energy infrastructure and enhances energy security and network resilience. We are proud to contribute to this effort through our advanced manufacturing capabilities and proven project execution expertise.”

With over 70 years of success, Hellenic Cables S.A. is a leading provider of cables and turnkey solutions worldwide, servicing the markets of energy transmission and distribution, renewables and offshore wind, telecom and data networks, construction, and industry. Through its fully owned subsidiary Fulgor, Hellenic Cables operates its submarine cables plant in Corinth, Greece, where the production and testing of some of the longest submarine cable lengths without factory joints leveraging top-notch facilities and equipment. Since 2012, Hellenic Cables has executed an investment plan exceeding EUR 800 million to upgrade its production sites, transforming them into state-of-the-art facilities. Hellenic Cables represents the cables segment of Cenergy Holdings SA. For further information, please visit Hellenic Cables website at www.hellenic-cables.com.

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 www.cenergyholdings.com.