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West Wales Hydrogen Project

Introduction to West Wales Hydrogen project

H2 Energy Europe plans to develop the first large-scale green hydrogen production facility in South Wales. With a capacity of 20 MWe, the plant will convert renewable energy into green hydrogen.

The energy required for this project will be sourced from both new and already operating wind farms in the UK. The hydrogen produced, expected to be around 4-5 tons per day, will be primarily used to decarbonise industrial operations within South Wales.

Additionally, the project is set to create 17 permanent jobs, contributing to the local economy.

20 MWe

Production Capacity


CO2 avoidance (tons p.a.)


Hydrogen Produced (tons p.a.)



First large-scale green hydrogen production facility in South Wales

The project incorporates Proton Exchange Membrane (PEM) electrolyser technology. Renowned for its high efficiency and compatibility with renewable energy sources, PEM technology offers several advantages, including low operational temperatures and rapid response times. These features make it particularly suitable for dynamic operations, aligning well with the intermittent nature of wind-generated power.

The production site is located in Puma Energy’s hydrocarbon storage and distribution terminal in Milford Haven, situated on a former oil refinery. The terminal, part of the Celtic Freeport, is already equipped with 63 storage tanks, a comprehensive network of pipelines connecting storage and jetty facilities, and road and rail loading capabilities.

West Wales Hydrogen marks a substantial advancement in harnessing renewable energy for sustainable hydrogen production, aligning with the UK’s Low Carbon Hydrogen Standards. These standards are crucial for ensuring that hydrogen production contributes effectively to the country’s carbon reduction goals. By adhering to these guidelines, the initiative sets a precedent for future green energy projects in the UK, demonstrating a commitment to both innovation and environmental responsibility.