Strategic energy infrastructure

  • Azerbaijan
  • Georgia
  • Romania
  • Hungary

Caspian Sea – Black Sea – Europe
Green Energy Corridor

Strategic Partnership Agreement of 17 December 2022

Caspian – Black Sea – Europe Green Energy Corridor

An HVDC corridor from the Caspian to the European grid

GECO is the joint venture of the national power companies of Azerbaijan, Georgia, Romania and Hungary, set up to develop three high-voltage direct current links under the Black Sea.

Green hydrogen: assessed in full, kept as a long-term option.

The project Procurement portal

Project status

Legal basis
Strategic Partnership AgreementBucharest ·
Feasibility Study
Approved CESI12th Ministerial Meeting, Baku ·
ENTSO-E TYNDP 2026
Admitted Projects 1248, 1244Phase 1 (Links 1–2) · Phase 2 (Link 3) ·
Current phase
DevelopmentRoadmap to final investment decision
Transfer capacity
3 × 1,300MW
Technology
±525kV VSC HVDC
Submarine cable
~1,120km
Maximum water depth
~2,200m
First link, planned
2032

Corridor route and grid integration

Full map and schematic
Indicative route of the Green Energy Corridor Three HVDC links start at Baku and cross Georgia via the converter stations at Ksani and Tskaltubo to the Anaklia and Poti landfalls. Submarine cables of about 1,120 km each cross the Black Sea to Constanța Sud, from where the corridor continues to Domnești and, at 2,000 MW, to Albertirsa in Hungary. BAKU KSANI TSKALTUBO ANAKLIA POTI CONSTANȚA SUD DOMNEȘTI (BUCHAREST) ALBERTIRSA Indicative corridor · Not to be used for navigation or engineering
Distance from Baku
~3,040 km indicative
Section
Baku → Albertirsa
Water depth
to ~2,200 m
Transfer capacity
3,900 MW
  1. 2032Link 1, +1,300 MW(corridor total 1,300 MW)
  2. 2036Link 2, +1,300 MW(corridor total 2,600 MW)
  3. 2040Link 3, +1,300 MW(corridor total 3,900 MW)

Indicative corridor based on the Feasibility Study (CESI, 2026). Distances are measured along the indicative route.

Programme overview

Procurement portal

Prequalification and EPC packages

Notices for services, studies, prequalification and EPC contracts for HVDC cable and converter stations are published on the procurement portal.

PackageStatus
Supplier registrationTo be announced
Prequalification · ±525 kV HVDC submarine cablePlanned
Prequalification · VSC converter stationsPlanned
EPC contractsAfter roadmap to FID

Environmental programme

ESIA and the Black Sea anoxic zone

Below roughly 150–200 m the Black Sea holds no dissolved oxygen. The Environmental and Social Impact Assessment concentrates on the shelf, the landfalls in Georgia and Romania, and deep-water heritage the anoxic water preserves.

News and events

All news and events

  1. EventBaku

    The Green Energy Corridor: From Feasibility Study to Implementation Forum held in Baku

    The Green Energy Corridor: From Feasibility Study to Implementation Forum, dedicated to investment and partnership opportunities for the Caspian-Black Sea-Europe Green Energy Corridor project, was held in Baku. The results of the project's feasibility study were presented for the first time at the forum to international investors, financial institutions, and business partners.