New era for the Peloponnese interconnection to the Extra High Voltage System (400kV)

Athens, 13 June 2023

The electricity transmission line connecting Megalopoli with Patras and Western Central Greece (the so-called “Western Corridor”) was put into full operation by IPTO. This project marks a new era for the Hellenic Electricity Transmission System and Peloponnese as the region is interconnected for the first time to the Extra High Voltage System (400kV), ensuring its energy security and the alleviation of congested regional networks.

The “Western Corridor” project consists of overhead and underground transmission lines and includes a 400kV Extra High Voltage dual-circuit submarine interconnection installed between Rio and Antirio. Until now, the Peloponnese system was operated at voltage of 150kV and thus having lower power carrying capacity, being an exception compared to the rest of the mainland.

Hellenic Cables undertook the design, manufacturing, installation, protection and connection of submarine and land cable systems, with total length of 18 km. The 400kV Extra High Voltage submarine cables were manufactured at Hellenic Cables’ submarine cable plant in Corinth, Greece, while the land cables were manufactured at Hellenic Cables’ plant in Thiva.

This emblematic project is pivotal for the expansion of the 400kV transmission system of Greece, as it supports utilisation of the potential energy production at the region, enhances the power transmission capacity to and from Peloponnese, while supporting the functionality and security of the Southern System.

Mr. Kostas Savvakis, General Manager of Hellenic Cables stated: “We are very pleased to have contributed to this important project for Greece which upgrades the electrical infrastructure of the country and enhances its energy security. Hellenic Cables continues supporting IPTO in the realization of its grid modernization vision and we would like to thank IPTO for the ongoing trust shown to us all these years.”

Hellenic Cables is one of the largest cable producers in Europe, manufacturing power and telecom cables as well as submarine cables for various industries, including offshore wind and utilities, as well as undertaking turnkey power transmission and distribution projects. 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 on a worldwide basis is empowered by the Company’s state-of-the-art facilities and equipment. Since 2012, Hellenic Cables has implemented a EUR 350 million-investment plan for the production of high and extra high-voltage submarine cables at Corinth plant. Hellenic Cables represents the cable production 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. Corinth Pipeworks is a world leader in steel pipe manufacturing for the oil and gas sector and major producer of steel hollow sections for the construction sector. Hellenic Cables is one of the largest cable producers in Europe, manufacturing power and telecom cables as well as submarine cables for the aforementioned sectors. For more information about our company, please visit our website at www.cenergyholdings.com.