Meridiam owns 66%, cable stays ashore

No survey vessel has returned to the seabed between Crete and Cyprus. Three weeks after a French infrastructure fund took majority ownership of the cable project meant to end Cyprus's electrical isolation, the sea remains empty. The Great Sea Interconnector (GSI) has gained a sponsor. It has not yet cleared the two tests that matter: who pays, and who can restart work at sea.

What Meridiam bought

On 5 August, Greek Prime Minister Kyriakos Mitsotakis announced that Meridiam, a Paris-based infrastructure investor, would take a 66% stake in the GSI project company. Greece's transmission operator ADMIE (the body that runs the country's high-voltage grid) keeps 34% and stays on as technical lead (Greek PM, Capital, Politis).

That is a governance change, not a construction milestone. The acquisition price, board composition and who pays if costs rise were not found in the public record (Dnews). Two French companies now sit inside the project: Meridiam as sponsor, Nexans as cable contractor. That gives Paris commercial leverage over the route, but owning a project company is not the same as guaranteeing its financing.

The project budget sits at roughly €1.9bn. EU grants through the Connecting Europe Facility (the EU's co-financing instrument for cross-border energy links) cover about €657m (Enerdata, Balkan Green Energy News). The rest, more than €1bn, depends on investors, lenders and consumers paying through electricity tariffs over time. A reported European Investment Bank financing request of around €1bn remains at due-diligence stage, not an approved loan (Proto Thema, CNA).

Cyprus gets the cable — and much of the bill

Cyprus may gain interconnection, but its consumers are where much of the cost lands. The EU's cost-sharing rules for cross-border energy projects assign roughly 63% of the Greece-Cyprus section to Cyprus, a bill spread across future tariffs rather than paid overnight (Politis, Kathimerini Cyprus).

The gap between claimed spending and recognised costs sharpens the tension. ADMIE says it has already spent about €251m, but Cypriot regulators have so far recognised only about €82m of that. The difference feeds directly into future tariff disputes (Proto Thema). Energy Minister George Papanastasiou says Nicosia is waiting for the EIB assessment before deciding whether the state puts equity into the project (SigmaLive). Opposition parties AKEL and DISY have demanded full disclosure of the Meridiam-ADMIE terms and Cyprus's total commitments (Kathimerini Cyprus).

Cyprus has also reportedly conditioned its own €125m contribution on visible progress at sea: a NAVTEX (the maritime notice that authorises survey vessels to operate in international waters) and a restart of seabed work (Capital). As of mid-August, no confirmed NAVTEX had been issued (Philenews).

What the cable tests

The GSI matters beyond one submarine cable because it tests whether EU priority status and EU grant money can convert into physical infrastructure when the route passes through waters Turkey contests, when multiple national regulators must agree on tariffs, and when the financing is still incomplete. The authority chain is clear enough: Meridiam controls the project company, ADMIE operates, Cypriot regulators decide how much consumers pay, the EIB decides whether to lend, and a NAVTEX determines whether work can restart. Any of them can block progress.

Reports describe coordination among Mitsotakis, Cypriot President Nikos Christodoulides and Emmanuel Macron over restarting surveys, possibly using French vessels (Les Echos). No French sovereign guarantee was found. The next proof point will be a NAVTEX number, a vessel name and survey equipment in the water between Crete and Cyprus. Until that appears, the project has improved its ownership structure without advancing its construction.