H4 Marseille Fos

France

H4 Marseille Fos is an industrial project entity based in Fos‑sur‑Mer, France, in the Marseille–Fos port area. It is focused on the development of e‑fuels for aviation, with an emphasis on sustainable aviation fuel (SAF) produced from renewable hydrogen and captured carbon. Positioned within a major Mediterranean industrial and logistics hub, the initiative aims to support decarbonization of regional industry and transport while contributing to Europe’s emerging e‑fuels supply.

The project concentrates on power‑to‑liquids pathways that combine green hydrogen from electrolysis with CO₂ sourced from industrial emitters to produce drop‑in synthetic jet fuel. Its location offers access to industrial partners, energy infrastructure, and transport networks that can facilitate sourcing of inputs and distribution to airports in France and the wider region. H4 Marseille Fos operates at the intersection of hydrogen, carbon utilization, and advanced fuels, aligning with regulatory momentum for lower‑carbon aviation.

Latest news on H4 Marseille Fos

9 October 2025
Rely Wins Contract for Engineering Studies on H4 Marseille Fos Green Aviation Fuel Hub

The project aims to produce 75,000 tons of e-SAF annually by 2030, using green hydrogen and CO2, supporting Europe's decarbonization goals and sustainable aviation.