H2D2OPartner with us

A NEW INDUSTRIAL FUTURE

Yesterday’s resources.
Tomorrow’s resilience.

Turning waste and legacy coal residues into a new source of energy, advanced materials and opportunity for Britain.

Discover the Swansea hub
SWANSEA, SOUTH WALES / FLAGSHIP IN DEVELOPMENTConcept visualisation
59,400t

Waste processed per year

1,800t

Hydrogen produced per year

5,400t

Carbon black produced per year

27acres

A strategic site with rail access

Planned annual capacity at steady-state operation. Waste throughput combines anaerobic digestion and pyrolysis.

01 / THE OPPORTUNITY

Unlocking value.
Restoring possibility.

Britain’s industrial past can help power its future.

H2D2O is developing an integrated hydrogen and carbon hub in Swansea. Our ambition connects three needs: recovering useful resources, strengthening domestic energy supply and producing the materials industry needs next.

Starting in South Wales, we are creating a model for a wider UK network of sites.

02 / COAL WASTE TO NEW VALUE

A new chapter
for Britain’s
coal landscapes.

Recover the resource. Support remediation. Give landscapes a future.

Disused mines and coal tips have left a lasting legacy across the UK. We are developing a route to bring suitable coal residues to Swansea by rail, recover their useful carbon content and support the restoration of affected land.

The ambition is national: work with landowners and remediation partners to remove suitable waste from former mining areas, including some of Britain’s most valued landscapes, while creating useful industrial products.

Discuss a remediation or feedstock partnership
01

Assess the legacy

Characterise coal spoil and industrial residues, including contaminants, recoverable content and environmental risks.

02

Connect by rail

Develop bulk logistics from suitable UK source sites to the railhead within the Swansea plot.

03

Recover & restore

Process qualified material and manage remaining residues, helping remediation partners return land to productive or environmental use.

Coal residue acceptance depends on testing, process suitability, permits and supply agreements. Contaminated materials and any remaining hazardous residues require appropriate treatment and controlled disposal. The 59,400-tonne total is the planned combined waste throughput, not a dedicated coal-waste allocation.

03 / THE INTEGRATED HUB

Three technologies.
One connected system.

Each process has a distinct role. Together, they create a phased route from underused resources to useful gas, hydrogen and carbon.

GAS TO HYDROGEN & SOLID CARBON

A different route
to hydrogen.

Methane plasmalysis splits methane into hydrogen and solid carbon. Phase 1 establishes this production platform; later phases introduce biomethane and integrate the wider circular system.

The unit receives gas, rather than solid waste. Carbon intensity depends on gas sourcing, electricity and the complete process.

ANNUAL INPUT100,800 MWh gas

25,200 MWh electricity

PLANNED ANNUAL OUTPUT1,800 tonnes hydrogen

5,400 tonnes carbon black

Close view of the methane plasmalysis module inside an industrial installation

INDUSTRIAL TECHNOLOGY

Engineering you can see.

Modular equipment and industrial reference installations provide a tangible foundation for the planned Swansea plasmalysis unit.

Industrial equipment pictured. Swansea’s configuration and performance remain subject to project engineering and supplier agreements.

04 / ENERGY & MATERIALS

More useful outputs.
More resilient industry.

H2

Hydrogen

A planned domestic source for industrial and mobility users, with local, rail and potential future pipeline routes to market.

1,800 tonnes / year
C

Carbon materials

Solid carbon black for industrial applications, with higher-value carbon, graphite and graphene pathways subject to processing and product qualification.

5,400 tonnes carbon black / year
E

Useful energy

Gas and energy streams support the integrated plant and potential industrial demand. Internal use and export will depend on the final design.

Pyrolysis energy*115.7 GWh/year
AD gas energy*71.1 GWh/year

*Model-implied annual outputs: pyrolysis 115,707.4 MWh; AD gas 71,122.35 MWh. These are process energy estimates, not net electricity exports. Internal transfers and consumption mean the figures should not be added to hydrogen output as independent net production.

Domestic resources.
Dependable industrial possibilities.

Local production, multiple input routes and the planned substitution of biomethane for grid gas can reduce exposure to imported supply chains. Hydrogen, recovered energy and carbon products give industrial partners more ways to source essential inputs closer to home.

05 / THE SWANSEA ADVANTAGE

The right connections.
In one place.

A 27-acre brownfield site at Swansea Burrows, bringing together rail access, road connectivity and proximity to an established industrial region.

Illustrative Swansea hydrogen hub showing the proposed plant, rail connection, Fabian Way and Tennant Canal
Illustrative development concept. Layout and infrastructure subject to detailed design.
01 / RAIL

A national catchment

The Docks rail line runs into the plot and terminates within it, creating the opportunity for bulk incoming feedstock and containerised product distribution.

02 / ROAD & PORT

Connected to industry

Fabian Way access and proximity to Swansea Docks place the site within the region’s industrial and logistics network.

03 / LOCATION

Industrial land, renewed

A brownfield setting alongside the Tennant Canal, close to industrial users, engineering skills and Swansea’s university ecosystem.

FUTURE HYDROGEN INFRASTRUCTURE

HyLine Cymru

The proposed hydrogen pipeline is expected to pass through the site, according to H2D2O’s current site information. A future connection could create another route to industrial customers across South Wales.

Proposed route and connection opportunity; subject to final alignment, delivery, connection terms and commercial access.

Explore the HyLine Cymru proposal
PembrokeSwansea
Potential connection
Port Talbot

ILLUSTRATIVE CORRIDOR · PROPOSED

06 / THE UK DEVELOPMENT PIPELINE

Built in Swansea.
Ambition across Britain.

One flagship. Seven further UK opportunities. A repeatable approach shaped around local resources, infrastructure and industrial demand.

01 / FLAGSHIP

Swansea

Clean Hydrogen & Carbon Hub

In developmentExplore the flagship
+7

Further UK sites

In the development pipeline

02030405060708

Individual locations and milestones will be announced as projects progress.

PHASE 1

Establish production

Methane plasmalysis for hydrogen and solid carbon.

PHASE 2

Introduce biomethane

Anaerobic digestion adds a renewable gas pathway.

PHASE 3

Connect the circular hub

Integrate pyrolysis, waste processing and carbon upgrading.

07 / BUILD WITH US

Be part of the
next industrial chapter.

The Circular Molecule Engine

The complete project explainer · sound available