Industrial technology firm Rely has been awarded an early-stage engineering contract for H4 Marseille Fos, a large-scale sustainable aviation fuel (e-SAF) project in France. The initiative is being developed by German-based Hy2gen and French developer H2V, aiming for an annual production capacity of 75,000 tonnes, reports Renewables Now.
The facility, located in the industrial port of Fos-sur-Mer near Marseille, will produce e-SAF using methanol-to-jet fuel synthesis. Methanol will be generated from green hydrogen—produced via a 300-MW water electrolysis system—and captured carbon dioxide. Production is targeted to begin in 2030.
The project has received support from Region Sud, Marseille Provence Airport, and Vinci Airports.
Rely’s role involves early engineering studies to define the plant, support permitting, and lay the groundwork for potential front-end engineering design (FEED). The studies will also integrate technological providers for both CO₂-to-methanol and methanol-to-jet fuel processes.
Rely, an independent technology integrator and service provider specializing in green hydrogen Power-to-X solutions, was formed through a joint venture between Technip Energies and John Cockerill.
