GOCO₂,  Grand-Ouest CO₂

18 August 2025

GOCO₂, a large-scale project to capture and transport CO₂ from industrial sources, supported by the Pays de la Loire Region and the Grand Port Maritime de Nantes Saint-Nazaire (GPMNSN).

Latest update

Feasibility studies have been carried out. These studies have enabled to establish the dimensions of the transport infrastructure and terminal, as well as assess their cost and the regulatory and environmental issues involved in ensuring their smooth integration into the relevant territories.

In early 2025, GOCO₂ was selected by the European Union as the winner of the CEF (Connecting Europe Facilities) fund for the detailed engineering phase.

As part of the government's carbon capture, utilization, and storage (CCUS) strategy and ADEME's Loire Estuary Decarbonization initiative (formerly ZIBAC), GOCO₂ represents a concrete and ambitious commitment to accelerate the decarbonization of industrial sites in western France.

Successful Call for Expression of Interest

Three CO₂ emitters who have been long-standing partners of the GOCO₂ project have committed to working with Elengy on the development of GOCO₂: Heidelberg Materials, Lafarge and Lhoist.
Building on this success, Elengy has launched feasibility studies.

Ten other companies have expressed potential interest in CO₂ projects beyond 2035. These results confirm the needs of manufacturers for CO₂ transport, liquefaction, and export infrastructure in western France. They will also support the emergence of CO₂ recovery projects, particularly those aimed at producing synthetic fuels.

The objective of GOCO₂ project is to develop an investment programme to capture CO₂ on industrial sites and transport it by pipeline to the Montoir-de-Bretagne terminal for permanent geological storage. The estimated capacity is of 2.2 million tonnes per year by 2031. Convinced of the benefits of a collective approach, the partners in the GOCO₂ project have jointly undertaken the studies required for this decarbonisation project.

*This project was funded by the French State as part of France 2030 operated by ADEME and cofinanced by the European Union

GOCO₂ represents a concrete and ambitious commitment to accelerate the decarbonisation of industrial sites in Western France, in addition to actions to avoid and reduce CO₂emissions.

A CO₂ capture, transport and export project (for permanent geological storage) without equivalent in Western France.

A first step in decarbonising Western France by decarbonising industries, led by 6 regional players.

Infrastructures open to CO₂ emitters in the 4 regions of the Grand-Ouest (Nouvelle-Aquitaine, Pays-de-la-Loire, Bretagne, Centre Val-de-Loire) ...

... covering a geographical area of 7.7 million people ...

… and about 450 000 industrial jobs.

A local project

Fully integrated into the local ecosystem, GOCO₂ benefits from existing infrastructures located in the Grand Port Maritime Nantes Saint-Nazaire (GPMNSN).
Eventually, it will be able to transport CO₂ from other industrial plants in the Grand-Ouest region, or biogenic CO₂ from biomethane purification in particular. It will also help to attract new industrial sites to the region by providing access to a decarbonisation infrastructure.