Hynamics UK, a subsidiary of France’s EDF Group, has partnered with hydrogen investment firm Hy24 to develop a £300 million green hydrogen production facility at ExxonMobil’s Fawley refinery and petrochemical complex in Hampshire.
Signed during the UK-France Summit, the memorandum of understanding (MoU) marks the start of exclusive negotiations to finance and co-develop the Fawley Green Hydrogen Project. At full scale, the facility will deploy a 120 MW electrolyser—one of the largest planned in the UK—aimed at replacing heavy fuel oil and grey hydrogen used in industrial operations with renewable hydrogen.
The Fawley site is the UK’s largest integrated petrochemical complex, refining 270,000 barrels of crude oil per day and producing approximately 650,000 tonnes of petrochemicals annually. According to the project developers, the proposed electrolyser will help slash carbon emissions by up to 100,000 metric tons per year by supplying low-carbon hydrogen directly to the site.
This would represent a significant contribution to ExxonMobil’s broader decarbonization strategy and the UK’s industrial emissions targets. The project has already been shortlisted under the Department for Energy Security and Net Zero’s Hydrogen Allocation Round 2, announced in April 2025, joining a competitive pool of 27 electrolytic projects vying for government-backed contracts.
Hy24’s Entry into the UK Hydrogen Market
The partnership also signals a strategic move by Hy24 into the UK hydrogen market. Backed by its Clean Hydrogen Infrastructure Fund, Hy24 sees the policy environment in the UK as increasingly conducive to private sector investment.
“The policy landscape in the UK is providing the certainty and clarity needed to enable decarbonization projects at the right scale and pace,” said Amir Sharifi, Hy24’s head for the UK, Southern Europe, the Middle East, and North Africa.
Sharifi also emphasized the narrowing window of opportunity for countries to secure early leadership positions across the hydrogen value chain. “The UK has shown remarkable consistency and determination in this regard. In this context, Hynamics UK stands out as one of the most advanced players,” he said.
The project aligns closely with the UK Government’s Clean Industrial Strategy released in June 2025, which aims to accelerate industrial decarbonization through strategic support for hydrogen infrastructure, carbon capture, and low-carbon technologies.
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