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HY4Link Pipeline to Connect Hydrogen Hubs Across Belgium, Luxembourg and France

HY4Linkhydrogen pipelineFluxyscross-border infrastructureGreater Region

June 10, 2026 • 2 min read

Four transmission system operators have launched HY4Link, an integrated cross-border hydrogen pipeline project designed to connect Belgium’s hydrogen import infrastructure with industrial consumers in Luxembourg and northeastern France. The 350-kilometre network is expected to begin operations in 2031, forming a critical artery in Europe’s emerging hydrogen backbone.

350 km

Pipeline network length

2031

Target operational date

2.2 GW

Electrolyser capacity planned

4 TSOs

Transmission operators involved

Linking Import Terminals to Industrial Heartlands

HY4Link brings together Fluxys Belgium, Creos Luxembourg, GRTgaz and Gaz-Réseau Distribution France to build hydrogen transport infrastructure spanning the Greater Region. The project will connect major hydrogen import hubs at the Port of Antwerp-Bruges and the Port of Zeebrugge with demand centres in Luxembourg, the French departments of Moselle, Meurthe-et-Moselle, Meuse and Marne, and Belgium’s Walloon provinces. Fluxys Belgium has announced plans to establish 2.2 GW of electrolyser capacity alongside the pipeline infrastructure, positioning the corridor as both an import gateway and a production hub.

The network forms part of the European Hydrogen Backbone initiative, a continent-wide vision for dedicated hydrogen transmission infrastructure. By linking seaborne hydrogen imports with landlocked industrial regions, HY4Link addresses a critical gap in the emerging hydrogen value chain. As energy planners increasingly deploy AI-driven demand modelling to forecast industrial hydrogen consumption patterns and optimise infrastructure capacity, projects like HY4Link provide the physical arteries needed to translate those scenarios into operational supply.

Four-Nation Partnership Targets Hard-to-Abate Sectors

The partnership reflects the cross-border nature of Europe’s industrial decarbonisation challenge. Luxembourg’s steel industry, French heavy manufacturing clusters, and Belgium’s petrochemical sector all represent hard-to-abate emission sources that policymakers view as priority candidates for hydrogen substitution. The TSO consortium has committed to aligning the project with EU hydrogen regulation, including compliance with the Renewable Energy Directive (RED III) frameworks for renewable hydrogen.

Natran Groupe, a French gas infrastructure operator, has confirmed its participation through its subsidiary Gaz-Réseau Distribution France. The announcement positions the Greater Region as a testbed for integrated hydrogen logistics, combining import infrastructure, pipeline transport, local production and end-user demand in a single interconnected system.

Implications for Europe’s Hydrogen Backbone

HY4Link’s 2031 timeline places it among the first wave of large-scale hydrogen transmission projects in continental Europe. The Greater Region’s geographic position—bridging North Sea import terminals with industrial demand in the Rhineland and Grand Est—gives the corridor strategic importance beyond its immediate partners. Successful delivery could establish technical and regulatory precedents for other cross-border hydrogen infrastructure initiatives, from grid codes to tariff structures. The project also highlights the pivotal role of existing gas TSOs in repurposing assets and expertise for the hydrogen economy, a transition model being watched closely across the synthetic-fuels sector.

Bottom Line

HY4Link represents a concrete step toward operationalising Europe’s hydrogen backbone, linking Belgian import capacity with industrial demand across Luxembourg and northeastern France through a 350-kilometre pipeline network. With a 2031 target and 2.2 GW of planned electrolyser capacity, the four-TSO partnership offers a template for cross-border hydrogen logistics—and a critical test of whether Europe can build the infrastructure to match its decarbonisation ambitions.

Sources

Featured image via Unsplash.

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