1. Introduction

Industrial decarbonisation clusters are geographically concentrated groups of industrial facilities, infrastructure operators, energy producers, transport networks and carbon-management facilities that cooperate to reduce greenhouse-gas emissions. Instead of requiring every industrial plant to decarbonise independently, the cluster approach creates shared infrastructure for hydrogen production, carbon capture and storage (CCS), low-carbon electricity, CO₂ transportation, storage, and potentially shared energy networks.

The United Kingdom provides important examples through HyNet in North-West England and East Coast Cluster in North-East England and Teesside/Humber. These projects illustrate how energy law is moving from regulating individual facilities toward regulating interdependent industrial ecosystems.

The legal issues include environmental permitting, planning approval, pipeline regulation, offshore storage licensing, state support, competition, third-party access, public participation, land acquisition, liability for stored CO₂, and the allocation of decarbonisation costs.

2. Meaning and Legal Character of Industrial Decarbonisation Clusters

An industrial decarbonisation cluster normally contains several interconnected components:

Industrial emitters – refineries, chemical plants, steel plants, cement factories and other energy-intensive industries.

Hydrogen production – particularly low-carbon hydrogen used to replace fossil fuels.

Carbon capture – capture of CO₂ from industrial processes.

CO₂ transportation – pipelines, ships or other transportation systems.

CO₂ storage – usually geological storage beneath the seabed.

Renewable and low-carbon electricity – electricity required for industrial electrification and hydrogen production.

Energy networks – electricity, hydrogen and potentially heat networks.

Governance institutions – regulators, infrastructure operators, government agencies and participating industries.

Legally, the cluster is not necessarily a single legal entity. It is better understood as a network of legally connected projects. Each component may require separate authorisations while the economic and technical viability of one project may depend on the successful completion of others.

This creates an important regulatory challenge: traditional facility-by-facility regulation may be insufficient for infrastructure whose environmental and economic performance depends upon the whole system.

3. HyNet Industrial Decarbonisation Cluster

HyNet is centred on North-West England and North Wales. Its proposed system combines industrial carbon capture, hydrogen production and distribution, and CO₂ transportation and storage.

Its legal significance arises from the fact that industrial decarbonisation is treated as an integrated infrastructure system rather than a collection of unrelated projects.

Key elements

HyNet involves:

hydrogen production and supply;

industrial fuel switching;

carbon capture;

CO₂ transportation infrastructure;

offshore geological storage;

associated pipelines and processing facilities;

industrial users seeking to reduce emissions.

The regulatory framework therefore potentially involves planning law, environmental law, energy regulation, offshore regulation and infrastructure law simultaneously.

4. East Coast Cluster

The East Coast Cluster focuses principally on the industrial areas around Teesside and the Humber.

These areas contain substantial concentrations of energy-intensive industries. Their proximity to offshore geological formations suitable for CO₂ storage makes integrated CCS infrastructure particularly significant.

The cluster model allows multiple industrial emitters to connect to common transportation and storage infrastructure.

From a legal perspective, this creates questions concerning:

access to shared infrastructure;

allocation of transportation capacity;

infrastructure ownership;

tariff structures;

environmental permitting;

storage liability;

network expansion;

competition between users;

government financial support.

5. Why Cluster-Based Regulation Is Necessary

Suppose ten factories individually capture CO₂ but there is no common transportation system.

The factories may technically be able to capture carbon, but the decarbonisation project cannot operate effectively without:

Capture → Gathering → Transportation → Offshore Storage

Consequently, legal approval for only the capture facilities does not guarantee decarbonisation.

The cluster model therefore introduces the concept of systemic regulatory coordination.

A regulator must consider questions such as:

What happens if the capture facility is operational but the CO₂ pipeline is delayed?

Who bears the cost if the storage site becomes unavailable?

Can one industrial user obtain priority access to a shared pipeline?

Who is liable if captured CO₂ escapes during transportation or storage?

These are not simply environmental questions; they are questions of infrastructure governance and energy-market regulation.

6. UK Legal Framework

The principal legal frameworks relevant to UK industrial decarbonisation clusters include:

A. Climate Change Act 2008

The Climate Change Act establishes the statutory framework for UK greenhouse-gas reduction and carbon budgeting.

Industrial clusters operate within this broader statutory objective.

B. Environment Act 2021

The Environment Act strengthens environmental governance and provides an important framework for environmental protection.

C. Energy Act 2004

The Energy Act 2004 provides important statutory foundations for offshore energy and CO₂ storage regulation.

D. Planning Act 2008

Large infrastructure projects can require development consent under the planning regime established by the Planning Act 2008.

E. Environmental Permitting Regulations

Industrial facilities and certain activities associated with emissions and waste require environmental permits.

F. Energy Act 2023

The Energy Act 2023 significantly expanded the UK legal framework for carbon capture, utilisation and storage and related energy infrastructure.

7. Carbon Capture and Storage as a Legal Chain

CCS consists of three legally significant stages:

Capture

CO₂ is separated from industrial emissions.

Transportation

Captured CO₂ must be transported through pipelines, ships or other infrastructure.

Storage

CO₂ is injected into suitable geological formations.

Each stage can involve different regulatory permissions.

This creates a chain-of-liability problem.

For example:

Industrial operator → Capture operator → Transport operator → Storage operator

A legal framework must determine where responsibility transfers between these parties.

8. CO₂ Transportation Infrastructure

Shared CO₂ pipelines are particularly important to cluster development.

A common pipeline can connect multiple industrial facilities to a central transportation system.

This creates legal issues resembling those traditionally encountered in electricity and gas networks:

access rights;

capacity allocation;

connection agreements;

tariffs;

network expansion;

technical standards;

safety;

third-party access;

dispute resolution.

The emergence of CO₂ networks therefore represents a shift from conventional energy regulation toward carbon infrastructure regulation.

9. Hydrogen Infrastructure

HyNet also demonstrates the importance of hydrogen infrastructure.

Hydrogen can potentially replace natural gas in certain industrial applications.

Legal issues include:

hydrogen pipeline ownership;

safety standards;

purity requirements;

metering;

network access;

consumer protection;

environmental standards;

certification of low-carbon hydrogen;

interaction with existing gas infrastructure.

The legal challenge is to create sufficient certainty for private investment while preventing infrastructure operators from obtaining unjustified monopoly advantages.

10. Industrial Clusters and Competition Law

Shared infrastructure may constitute an essential facility for participating industries.

If a single operator controls the transportation or storage infrastructure, competition-law concerns may arise.

Potential issues include:

discriminatory access;

exclusion of competing industrial users;

excessive charges;

preferential capacity allocation;

refusal to connect;

anti-competitive agreements.

The regulatory structure must therefore balance investment incentives against open and fair infrastructure access.

11. State Aid and Government Support

Large industrial decarbonisation projects require significant capital.

Government support may take the form of:

grants;

contracts for difference;

regulated revenue mechanisms;

infrastructure funding;

tax incentives;

investment guarantees.

The legal issue is whether government intervention creates unfair competitive advantages.

UK schemes must also operate consistently with applicable subsidy-control rules.

This is particularly important where a cluster receives public funding for infrastructure that subsequently serves private industrial companies.

12. Planning Law and Cluster Development

Industrial clusters often require:

new pipelines;

compressor stations;

hydrogen production plants;

capture equipment;

storage facilities;

electricity infrastructure;

port infrastructure.

Each project may have its own planning implications.

The planning system must therefore reconcile:

National decarbonisation objectives

with

Local environmental and community interests.

This creates a classic tension between national infrastructure policy and local participation.

13. Environmental Impact Assessment

Industrial decarbonisation infrastructure can have significant environmental impacts.

Environmental assessment may consider:

construction impacts;

marine ecosystems;

pipeline routes;

groundwater;

geological stability;

industrial emissions;

biodiversity;

noise;

land use;

cumulative impacts.

The cluster approach creates a further question: should impacts be assessed project-by-project or cumulatively across the entire cluster?

A fragmented approach could potentially overlook cumulative environmental effects.

14. Public Participation

Large industrial infrastructure projects can generate concerns among affected communities.

Public participation is therefore an important component of legitimate cluster governance.

Relevant concerns may include:

safety;

land use;

pipeline routes;

industrial emissions;

coastal infrastructure;

environmental effects;

employment;

distribution of economic benefits.

Procedural fairness requires affected persons to have meaningful opportunities to participate where legislation provides such rights.

15. Case Law: R (on the application of Finch) v Surrey County Council

R (Finch) v Surrey County Council [2024] UKSC 20 is highly relevant to climate-sensitive infrastructure decision-making.

The case concerned whether an environmental assessment for an oil project should account for downstream emissions resulting from the eventual use of extracted oil.

The Supreme Court held, in the circumstances of that case, that downstream greenhouse-gas emissions were within the scope of the environmental effects that had to be considered.

Relevance to industrial clusters

The case demonstrates that environmental decision-making cannot always be limited artificially to emissions occurring physically at the project site.

For industrial decarbonisation clusters, the broader lesson is that regulators may need to consider the causal relationship between infrastructure and its environmental consequences.

It is particularly relevant when evaluating whether a project genuinely contributes to emissions reduction.

16. Case Law: R (Friends of the Earth Ltd) v Heathrow Airport Ltd

R (Friends of the Earth Ltd) v Heathrow Airport Ltd [2020] UKSC 52 concerned the legal significance of government climate policy in infrastructure decision-making.

The Supreme Court considered the relationship between the UK's climate commitments and the statutory framework governing airport development.

Relevance

The case illustrates an important principle for major infrastructure projects:

Climate policy can form an important part of the legal context within which infrastructure decisions are made.

For industrial clusters, national carbon budgets and statutory climate objectives can therefore influence planning and regulatory decisions.

17. Case Law: R (on the application of ClientEarth) v Secretary of State for Business, Energy and Industrial Strategy

The ClientEarth litigation concerning UK climate policy is relevant to the broader relationship between statutory climate duties and government decision-making.

The courts have recognised the importance of statutory climate frameworks while also maintaining the distinction between judicial review and policy-making.

Relevance to clusters

Industrial clusters operate within government-created decarbonisation strategies. Their legal framework therefore depends heavily on:

statutory climate objectives;

government policy;

regulatory implementation;

infrastructure decisions.

However, courts generally do not substitute their own policy choices for those entrusted to public authorities unless there is a legal error.

18. Case Law: R (Friends of the Earth) v Secretary of State for Energy Security and Net Zero

The litigation concerning the UK's Net Zero Strategy illustrates the legal significance of statutory climate planning.

The High Court found deficiencies in the government's explanation of how policies would achieve statutory carbon budgets.

Importance

This demonstrates that climate policy is not necessarily merely political guidance. Where legislation imposes statutory duties, government planning must satisfy legal requirements.

For industrial clusters, this can influence the government's justification and implementation of infrastructure-support programmes.

19. EU CCS Case Law and Regulatory Principles

Although HyNet and the East Coast Cluster are UK projects, European CCS law provides useful comparative principles.

The EU CCS framework emphasises:

geological storage permits;

monitoring;

corrective measures;

closure;

post-closure obligations;

transfer of responsibility.

These principles are important because geological storage involves potentially long-term environmental responsibility.

A central legal question is:

At what point can responsibility for stored CO₂ transfer from the private operator to the state?

20. Long-Term Liability for Stored Carbon

Long-term liability is one of the most difficult legal issues.

Suppose CO₂ is injected underground in 2030.

Who is responsible if leakage is discovered in 2070?

Possible approaches include:

indefinite private liability;

liability until regulatory transfer;

state assumption of responsibility after demonstrated stability;

financial security requirements;

insurance or reserve mechanisms.

A sound legal system must prevent operators from externalising long-term environmental risks while also making investment legally feasible.

21. Industrial Clusters and Energy Justice

Clusters can generate economic benefits through:

industrial employment;

infrastructure investment;

regional development;

technology development.

But costs and risks may be distributed unevenly.

For example, one community may host:

hydrogen infrastructure;

CO₂ pipelines;

processing facilities;

ports;

while another receives most of the economic benefits.

Energy-justice principles therefore raise questions about:

procedural justice;

distributive justice;

recognition of affected communities;

employment benefits;

environmental burdens.

22. Indian Relevance

The cluster model has relevance for India even though HyNet and the East Coast Cluster are UK examples.

Indian industrial regions such as:

Gujarat;

Maharashtra;

Odisha;

Tamil Nadu;

Andhra Pradesh;

Jharkhand;

contain concentrated industrial activity that could potentially support cluster-based decarbonisation.

Relevant Indian legislation includes:

Electricity Act 2003;

Energy Conservation Act 2001, as amended;

environmental protection legislation;

industrial and pollution-control regulations;

renewable-energy regulations;

emerging hydrogen policy frameworks.

India's National Green Hydrogen Mission also provides an important policy context for industrial decarbonisation.

A future Indian industrial cluster could integrate:

Renewable electricity + green hydrogen + industrial demand + storage + carbon-management infrastructure.

23. Key Legal Challenges

Industrial decarbonisation clusters face several recurring legal problems:

24. Emerging Legal Concept: The "Cluster as a System"

The most important conceptual development is that industrial decarbonisation should not be regulated solely through individual permits.

A cluster is a system of interdependent infrastructure.

For example:

Hydrogen production
↓
Hydrogen pipeline
↓
Industrial consumers

and simultaneously:

Industrial emissions
↓
Carbon capture
↓
CO₂ pipeline
↓
Offshore storage

Failure at any critical node can affect the entire system.

Therefore, future energy law may require:

integrated infrastructure planning;

coordinated licensing;

common technical standards;

system-wide risk management;

shared liability rules;

coordinated environmental assessment;

transparent access rules.

25. Conclusion

HyNet and the East Coast Cluster demonstrate a significant evolution in energy and environmental law. Decarbonisation is increasingly being pursued through integrated industrial ecosystems rather than isolated facility-level interventions.

Their legal significance extends beyond CCS. They require coordination among planning law, environmental law, energy regulation, competition law, infrastructure law, climate law and public law.

The most important legal questions concern the governance of shared infrastructure, third-party access, long-term CO₂ liability, public participation, government financial support and the distribution of risks and benefits.

Cases such as Finch, Heathrow, and climate-policy litigation demonstrate the growing importance of climate considerations in major infrastructure decision-making. They do not create a single legal regime for industrial clusters, but they provide important principles concerning environmental assessment, statutory climate duties and the relationship between infrastructure development and climate policy.

Ultimately, the future of industrial decarbonisation clusters will depend on whether legal systems can move from facility-based regulation to coordinated system-based governance while maintaining environmental protection, investment certainty, competition, accountability and procedural fairness.