Could Barrow Become Home to Britain’s Largest Energy Storage Hub?

A major new energy infrastructure project could place the Port of Barrow at the centre of the UK’s future energy system.

EnergyPathways has announced a partnership with Associated British Ports (ABP) to explore the Port of Barrow as the onshore base for the Marram Energy Storage Hub (MESH) a project expected to become the UK’s largest integrated energy storage development. Located in the East Irish Sea, the project has already been recognised by the UK Government as being of national significance.

Supporting the UK’s Energy Security

The proposed MESH project is designed to store energy at scale using compressed air, natural gas and hydrogen storage technology. At a time when energy security remains high on the national agenda, projects like this could play a major role in helping the UK manage supply more effectively while reducing long-term reliance on imported gas.

Plans include the development of large underground salt caverns beneath the Irish Sea, with enough potential capacity to more than double the UK’s current gas storage capability. The project is also expected to support renewable generation by storing excess wind energy and providing dispatchable power during periods of lower renewable output.

Why Barrow Matters

Barrow-in-Furness is already closely linked to the UK’s energy and industrial sectors, and this latest proposal could strengthen its position even further. According to EnergyPathways and ABP, the Port of Barrow offers the right combination of offshore access, available land, infrastructure and export capability needed to support a project of this scale.

Alongside energy storage, proposals also include hydrogen production and graphite processing facilities, both areas expected to become increasingly important as the UK continues its transition towards lower-carbon energy systems and battery technologies.

A Long-Term Investment in Infrastructure

Projects like MESH highlight how the UK energy market is continuing to evolve beyond generation alone. Storage, flexibility and infrastructure are becoming just as important in supporting a more resilient energy system for the future.

While the project is still subject to approvals and investment decisions, it represents another example of how large-scale energy developments are beginning to reshape regional economies, strengthen energy security and support long-term sustainability goals across the UK.

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