TREE NEWS update: Greece’s foreign ministry issued a navigational warning on Nov. 6 authorizing a French company to survey and lay cable in the eastern Mediterranean for the Greece-Cyprus electricity interconnector, with Cyprus issuing a parallel warning for surveys in its exclusive economic zone from Nov. 19, 2026. Both warnings run four months. Turkey’s foreign ministry objected, saying parts of the French-flagged survey vessel’s work area fall within its claimed continental shelf.
Greece, Cyprus Issue Nav Warnings for East Med Power Link; Turkey Objects
The significance here is less about the cable itself than about the permitting layer: two EU states have now formalized survey windows through navigational warnings, while Turkey is contesting the maritime jurisdiction behind them. That puts a private French contractor at the center of a long-running delimitation dispute, and it means the interconnector's timeline now depends on something no utility controls. The open question is whether the four-month survey windows pass without physical interference, and whether Ankara's objection stays diplomatic or escalates into a presence at sea.
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