Assess the legacy
Characterise coal spoil and industrial residues, including contaminants, recoverable content and environmental risks.
A NEW INDUSTRIAL FUTURE
Turning waste and legacy coal residues into a new source of energy, advanced materials and opportunity for Britain.
Waste processed per year
Hydrogen produced per year
Carbon black produced per year
A strategic site with rail access
Planned annual capacity at steady-state operation. Waste throughput combines anaerobic digestion and pyrolysis.
01 / THE OPPORTUNITY
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
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 partnershipCharacterise coal spoil and industrial residues, including contaminants, recoverable content and environmental risks.
Develop bulk logistics from suitable UK source sites to the railhead within the Swansea plot.
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
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
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.
25,200 MWh electricity
5,400 tonnes carbon black

INDUSTRIAL TECHNOLOGY
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
A planned domestic source for industrial and mobility users, with local, rail and potential future pipeline routes to market.
1,800 tonnes / yearSolid carbon black for industrial applications, with higher-value carbon, graphite and graphene pathways subject to processing and product qualification.
5,400 tonnes carbon black / yearGas and energy streams support the integrated plant and potential industrial demand. Internal use and export will depend on the final design.
*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.
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
A 27-acre brownfield site at Swansea Burrows, bringing together rail access, road connectivity and proximity to an established industrial region.

The Docks rail line runs into the plot and terminates within it, creating the opportunity for bulk incoming feedstock and containerised product distribution.
Fabian Way access and proximity to Swansea Docks place the site within the region’s industrial and logistics network.
A brownfield setting alongside the Tennant Canal, close to industrial users, engineering skills and Swansea’s university ecosystem.
FUTURE HYDROGEN INFRASTRUCTURE
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 proposalILLUSTRATIVE CORRIDOR · PROPOSED
06 / THE UK DEVELOPMENT PIPELINE
One flagship. Seven further UK opportunities. A repeatable approach shaped around local resources, infrastructure and industrial demand.
In the development pipeline
Individual locations and milestones will be announced as projects progress.
Methane plasmalysis for hydrogen and solid carbon.
Anaerobic digestion adds a renewable gas pathway.
Integrate pyrolysis, waste processing and carbon upgrading.
07 / BUILD WITH US
For landowners, coal-tip remediation teams and suppliers of suitable waste or organic materials.
Discuss a supply partnershipENERGY & MATERIAL BUYERSFor industrial users exploring hydrogen, useful energy and qualified carbon products.
Discuss your requirementsSTRATEGIC PARTNERSFor government, infrastructure, engineering and research partners supporting delivery.
Request a project briefing