February 18, 2026 [Tank Storage Magazine]- Baker Hughes and Vallourec have signed a memorandum of understanding (MoU) on underground hydrogen storage, using Vallourec’s Delphy solution.

The collaboration is intended to build a closer, long-term cooperation to better serve customers across the industrial green hydrogen value chain – including green ammonia, sustainable fuels and green steel manufacturing – as well as the clean power sector, such as data centres.

This MoU includes the future integration of Vallourec’s Delphy storage solution with Baker Hughes compression solutions. The areas of collaboration will focus on optimising compression-storage configurations, determining the most efficient operating pressures for each application, and ultimately helping customers reduce total cost of ownership while increasing their competitiveness.

Delphy is Vallourec’s market-ready underground hydrogen storage solution, capable of storing up to 100 tonnes of green hydrogen gas vertically. Engineered to combine high-pressure performance, minimal surface footprint, and industry-leading safety, this Vallourec’s turnkey solution has already been certified by Bureau Veritas Group and DNV.

The collaboration with Baker Hughes, an established leader in compression technology solutions that deliver significant improvements in the overall green hydrogen plant footprint, is a new step in establishing Vallourec as a key player in the green hydrogen value chain.