What is included in the €1.5 billion turnkey contract awarded to Hellenic Cables?

The turnkey scope includes the complete design, high-voltage subsea and underground cable manufacturing, specialized offshore laying, subsea protection, and operational commissioning of the transmission system.

Why are subsea HVDC cable systems crucial for Mediterranean energy infrastructure?

HVDC subsea cables allow for high-capacity electricity transmission over vast marine distances with minimal energy loss, making them essential for connecting isolated island grids and enabling cross-border power trading.

How does this infrastructure award influence broader East Mediterranean connectivity?

Expanding subsea cable manufacturing and grid capacity in Greece reinforces the technical foundation needed to realize ambitious regional interconnectors, such as the planned links connecting Cyprus and Israel to mainland Europe.

Offshore Energy · August 14, 2026 (2d ago) · 1 min read

€1.5 billion turnkey contract awarded for Greek interconnection

Analysis

AI-assisted analysis · reviewed by Yuri Kan

Hellenic Cables, a major subsidiary of Cenergy Holdings, has secured a landmark turnkey contract valued at approximately €1.5 billion for high-voltage direct current (HVDC) submarine cable infrastructure in Greece. This major procurement represents a transformative milestone in modernizing Southern European energy transmission networks and integrating mainland grids with regional islands. The scale of the award underscores the accelerating capital expenditure directed toward strategic subsea interconnections across the Eastern Mediterranean basin.

Key Facts

Hellenic Cables was awarded a major turnkey contract valued at approximately €1.5 billion for subsea cable manufacturing and installation.
The contracting entity is Hellenic Cables, representing the specialized cable manufacturing arm of Belgium-based Cenergy Holdings.
The project focuses on high-voltage direct current (HVDC) subsea links designed to bolster grid reliability and cross-regional power transmission in Greece.
The turnkey scope covers the full lifecycle including design, engineering, subsea cable manufacturing, trenching, installation, and final commissioning.
The mega-contract ranks among the largest single subsea cable infrastructure awards issued in the Mediterranean energy sector to date.

Background & Context

Greece has been pursuing an aggressive infrastructure strategy to phase out high-emission, isolated diesel generation across its archipelagos by linking them directly to the mainland power grid. Simultaneously, regional grid operators like IPTO (ADMIE) are modernizing national transmission infrastructure to handle surging volumes of renewable energy. These domestic initiatives serve as technical and operational stepping stones toward broader trans-Mediterranean subsea connectivity plans connecting Europe with the East Med and North Africa.

Market Impact

This contract award significantly solidifies Hellenic Cables' market leadership in high-capacity submarine transmission systems, cementing European manufacturing capabilities in the HVDC segment. For transmission system operators, securing tier-one cable manufacturing capacity mitigates severe global supply chain bottlenecks that currently plague offshore grid projects. Strategically, strengthening the Greek subsea transmission backbone provides the necessary onshore receiving capacity for future large-scale cross-border electricity imports from the Levant and North Africa.

What to Watch

Market observers should monitor the procurement milestones, manufacturing schedules at Corinth facilities, and vessel chartering timelines for marine installation. Key developments will also include the integration timelines with terrestrial converter stations and the formal commissioning of the subsea link over the coming project cycles.

Why This Matters for Cyprus

Upgrades to Greece's subsea transmission backbone are vital for regional integration projects directly involving Cyprus, most notably the Great Sea Interconnector linking Israel, Cyprus, and mainland Greece. Reinforcing Greek HVDC capacity ensures the downstream grid can reliably absorb and wheel power transmitted from the Eastern Mediterranean energy corridor.

Frequently Asked Questions

What is included in the €1.5 billion turnkey contract awarded to Hellenic Cables?: The turnkey scope includes the complete design, high-voltage subsea and underground cable manufacturing, specialized offshore laying, subsea protection, and operational commissioning of the transmission system.
Why are subsea HVDC cable systems crucial for Mediterranean energy infrastructure?: HVDC subsea cables allow for high-capacity electricity transmission over vast marine distances with minimal energy loss, making them essential for connecting isolated island grids and enabling cross-border power trading.
How does this infrastructure award influence broader East Mediterranean connectivity?: Expanding subsea cable manufacturing and grid capacity in Greece reinforces the technical foundation needed to realize ambitious regional interconnectors, such as the planned links connecting Cyprus and Israel to mainland Europe.

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