EnergyPathways partners with ABP to locate major MESH energy storage facilities at Port of Barrow

EnergyPathways and ABP team up on Port of Barrow for the MESH energy storage project

EnergyPathways has announced a collaboration agreement with Associated British Ports, or ABP, to jointly evaluate the Port of Barrow as the home for the onshore facilities of its Marram Energy Storage Hub, better known as MESH.

That is the headline. The more important bit for investors is what this actually means: EnergyPathways has not yet secured a final site deal, and it has not announced project financing, but it has taken another step in turning MESH from a big idea into something that looks more grounded in real infrastructure.

What the EnergyPathways RNS actually says

The agreement is focused on assessing whether ABP’s Port of Barrow can support the onshore parts of MESH, which EnergyPathways says is expected to be Britain’s largest integrated energy storage project.

MESH combines compressed air energy storage, or CAES, with natural gas and hydrogen storage. CAES is a way of storing energy by compressing air when power is plentiful, then releasing it later to generate electricity when needed. In plain English, it is designed to help smooth out the ups and downs of renewable power.

The proposed Barrow facilities being examined include:

• a CAES storage operations base
• a gas and hydrogen storage operations base
• connection infrastructure for offshore storage facilities
• hydrogen and graphite production facilities
• sustainable industrial processing and export facilities

That is a wide scope. It suggests EnergyPathways is thinking beyond a single storage asset and aiming for a broader industrial energy hub.

Key MESH project numbers from the Port of Barrow announcement

Item	Figure
Target start of operations	2031
Potential subsurface salt caverns	Up to 60
UK gas supply storage claimed	Around six days
Increase to Britain’s gas storage capacity	More than double
ABP ports network	21 ports
UK trade handled by ABP ports each year	Over £150 billion
ABP investment over the last 5 years	Around £750 million

Why the Port of Barrow matters for MESH and EnergyPathways shareholders

This is not just about finding a patch of land. Port of Barrow offers access to the East Irish Sea storage development areas, plus existing port facilities and export infrastructure. That matters because major energy projects live or die on logistics, grid links, industrial access and local support.

ABP also brings weight. It is the UK’s largest ports operator, handles around a quarter of the nation’s seaborne goods trade, and already supports more than 50% of offshore wind operations and maintenance activity. For a small listed company, having a partner with that kind of infrastructure credibility helps.

My view is that this is a strong strategic development. It does not remove the big execution risks, but it improves the story around deliverability. Investors often hear about giant energy projects in abstract terms – this RNS gives MESH a more believable physical footprint.

Why MESH could be important to the UK energy system

EnergyPathways is pitching MESH as a nationally significant project, and the RNS says the UK Government has already given it that designation. The company says the project will store excess wind energy, generate multi-day dispatchable power, lower emissions versus gas-fired power stations, and reduce dependence on gas imports.

Those are big claims, but they are not random ones. Britain does have growing renewable generation and recurring periods when wind power is curtailed, meaning energy is effectively wasted because the system cannot use or store it efficiently. A large-scale storage project could help plug that gap if it is built on time and at the right cost.

The gas storage angle is also important. EnergyPathways says MESH could more than double Britain’s gas storage capacity and hold around six days of national supply. If that is eventually delivered, it would be a serious strategic asset rather than a niche project.

Hydrogen, graphite and Barrow industrial growth – interesting upside, but still early

One of the more intriguing parts of the RNS is the mention of hydrogen production alongside graphite as a by-product. Graphite is described as a critical mineral for civil nuclear, defence and battery applications, which ties MESH into the UK’s 2035 Critical Minerals strategy ambitions.

That adds another possible revenue and policy angle. But investors should stay disciplined here: no production volumes, economics, capital costs or expected revenues were disclosed. At this stage, it is strategic potential rather than bankable detail.

The project also fits with the wider Barrow development masterplan, and Team Barrow has publicly welcomed MESH. Local and government backing can be very helpful for big infrastructure schemes, especially when planning and long development timelines are involved.

What is positive in this EnergyPathways ABP agreement?

• EnergyPathways has secured a credible port partner in ABP.
• The RNS reinforces that MESH is moving through practical development work, not just concept slides.
• The scale of the project remains eye-catching, with up to 60 salt caverns and a 2031 target for operations.
• The project has broader strategic relevance across power storage, gas storage, hydrogen and industrial processing.
• EnergyPathways is already working with a Tier-1 partner group of Siemens Energy, Wood, Costain and Zenith Energy.

What are the risks and weaker points investors should not ignore?

• This is a collaboration agreement to evaluate a location, not a final development agreement.
• The onshore facilities remain subject to a commercial agreement between ABP and EnergyPathways.
• The whole development is still subject to financing and planning approvals.
• No financial terms were disclosed.
• No new funding package, final investment decision or construction start date was announced.

That last point matters. For all the ambition here, this is still a pre-final investment decision story. The company itself says the announcement is another milestone as MESH progresses towards final investment decision, which tells you clearly that major gates still sit ahead.

My take on what this means for EnergyPathways shares

I would class this as genuinely positive news, but not the sort of update that, on its own, proves the investment case. It improves confidence that EnergyPathways is lining up the right industrial partners and the right location for a project of national scale.

For retail investors, the key takeaway is simple: the MESH project is becoming more tangible. That said, the value inflection points are still likely to be financing, planning, commercial agreements and ultimately final investment decision.

So, this RNS is a credibility-builder rather than a finish line. If you already follow EnergyPathways, it is the sort of announcement you wanted to see. If you are new to the story, it shows the opportunity is large, but the execution challenge is every bit as large too.

Bottom line on the EnergyPathways and ABP Port of Barrow deal

EnergyPathways has taken a sensible and potentially important step by partnering with ABP to assess Port of Barrow for MESH’s onshore infrastructure. The strategic logic is strong: the location is relevant, the port partner is credible, and the project sits neatly within UK energy security and industrial policy themes.

But investors should keep both feet on the ground. This is an early-to-mid stage development milestone, not a signed-off build decision. Promising, yes. Transformational today, no – not yet.