The Poseidon pipeline
The project aims to connect Italy and the Greek-Turkish border via pipeline through Greece, establishing a new supply route for the country and Central Europe, a concrete opportunity to strengthen energy diversification in the region.
An infrastructure for natural gas and hydrogen
The design and operational conditions of the pipeline, which extends approximately to 760 km onshore and 200 km offshore, allow for the transport of up to 12 Bcm/y of natural gas in its initial phase, expandable to a maximum of 20 Bcm/y. Furthermore, thanks to its capability to transport pure hydrogen — up to a maximum capacity of 23 Bcm/y — the project has been included by ENTSO-G in the Ten-Year Network Development Plan of the European network (TYNDP).
Total length
Natural gas transport capacity in the initial phase
Hydrogen maximum transport capacity in the initial phase
Development and next steps
Thanks to continuous investments, the project is now mature and can be implemented as soon as favorable commercial conditions for supply arise. Its development is promoted through IGI Poseidon, which has been leading the infrastructure development since 2008. From an institutional perspective, the Poseidon project is regulated by an intergovernmental agreement between Turkey, Italy, and Greece, signed in July 2007 and already ratified by the Turkish Parliament. All engineering activities were completed in 2019, enabling the acquisition of the main permits in both Italy and Greece. The expected construction timeline is 3 years from the final investment decision.