Diplomatic tensions rise over Great Sea Interconnector surveys

The French-flagged research vessel Abeille Marengo is set to depart from Heraklion, Crete, between November 10 and 11 to conduct seabed surveys for the Great Sea Interconnector (GSI), a project aimed at linking the electricity grids of Greece and Cyprus. Following the issuance of a Greek NAVTEX on November 6, which remains valid until March 2027, Turkey issued an anti-NAVTEX, claiming that parts of the survey area fall within its continental shelf and that permission was required.

Greek government officials, including spokesperson Pavlos Marinakis, have categorically denied requesting or receiving permission from Turkey, emphasizing that the project follows legal procedures authorized solely by Greek and Cypriot authorities. While France issued a note verbale to Turkey regarding the operation, Greek officials clarified that this was purely for maritime safety and informational purposes, not a request for consent. In contrast, certain Turkish media outlets, such as Türkiye, claim that the research schedule was adjusted and that Turkey's reaction forced a request for authorization, a narrative explicitly rejected by Athens.

The project, described as a strategic energy initiative, remains on track with support from the European Union, which has allocated 658 million euros. Diplomatic efforts involving the United States are reportedly underway to ensure the surveys proceed without obstruction. The vessel is expected to continue its work in the Eastern Mediterranean over the coming months as part of the broader energy infrastructure plan.