UK ENERGY LAW AND ELECTRICITY SYSTEM: SUPPLY CHAIN SECURITY AND CRITICAL MATERIALS GOVERNANCE

1. Introduction

Supply chain security and critical materials governance are essential to the resilience, affordability and decarbonisation of the United Kingdom’s electricity system. Electricity infrastructure depends on strategically important materials, including lithium, cobalt, nickel, copper, graphite and rare earth elements. These materials support batteries, transformers, wind turbines, electric vehicles and electricity transmission networks.

Supply disruptions caused by geopolitical tensions, export restrictions, market concentration or environmental damage can delay infrastructure development and threaten energy security. UK law addresses these risks through energy regulation, national security legislation, procurement requirements, environmental controls and international trade arrangements.

2. UK Legal and Regulatory Framework

The Energy Act 2023 provides a framework for modernising energy infrastructure and supporting the transition towards low-carbon electricity. The Electricity Act 1989 establishes licensing and regulatory obligations for electricity generation, transmission, distribution and supply.

The National Security and Investment Act 2021 permits government scrutiny of qualifying acquisitions that may threaten national security, including transactions involving strategically significant energy infrastructure.

The Environment Act 2021 and relevant waste legislation support resource efficiency, environmental accountability and the development of circular material supply chains.

The UK's Critical Minerals Strategy also addresses supply diversification, domestic capabilities, international partnerships and recycling. It operates as government policy rather than creating a comprehensive statutory critical-minerals regime.

3. Strategic Supply Chain Governance

The November 2025 Critical Minerals Strategy, Vision 2035, establishes ambitions for domestic production, recycling and diversified international sourcing.

By 2035, the government aims to meet at least 10% of aggregate annual critical-mineral demand through domestic production, 20% through recycling, and limit dependence on any single supplying country to 60%. These are policy targets, not binding statutory quotas.

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Electricity network operators can strengthen resilience through supplier diversification, equipment standardisation, strategic inventories and contractual provisions addressing delivery failures.

4. Environmental Protection and Responsible Procurement

Critical-mineral extraction and processing can cause habitat destruction, water pollution and substantial carbon emissions.

UK environmental assessment, planning and waste-management requirements regulate relevant domestic activities. The Procurement Act 2023 also establishes rules for covered public procurement, although it does not impose a universal critical-mineral sourcing requirement on private electricity companies.

Responsible governance therefore requires traceability, environmental due diligence and transparent supplier selection.

5. Relevant Case Laws

Case 1: R (Friends of the Earth Ltd) v Heathrow Airport Ltd [2020] UKSC 52

Facts: Environmental organisations challenged the Airports National Policy Statement supporting Heathrow's third runway, arguing that climate commitments had been inadequately considered.

Legal Issue: Whether the policy statement was unlawful because of its treatment of the Paris Agreement.

Judgment: The Supreme Court allowed Heathrow's appeal and upheld the policy statement against this challenge.

UK Supreme Court

Legal Principle/Ratio: Environmental and climate considerations must be assessed according to the requirements of the applicable statutory framework.

Significance: Although not a critical-minerals case, the judgment illustrates the importance of lawful environmental assessment when developing strategic infrastructure.

Case 2: R v Secretary of State for Foreign Affairs, ex parte World Development Movement Ltd [1995] 1 WLR 386

Facts: The government approved development assistance for Malaysia's Pergau Dam project. The decision was challenged because of concerns about its developmental justification.

Legal Issue: Whether the expenditure fell within the statutory powers governing overseas development assistance.

Judgment: The court held that the decision was unlawful.

Legal Principle/Ratio: Public expenditure must comply with the statutory purposes for which the relevant powers were conferred.

Significance: The decision illustrates the legal accountability applicable to public funding decisions, including potentially those supporting overseas mineral supply-chain projects.

6. Future Challenges and Conclusion

The UK's electricity transition requires secure access to materials alongside responsible mining, recycling and international cooperation. Principal challenges include concentrated refining capacity, volatile commodity prices, environmental impacts and lengthy infrastructure development.

Effective governance requires coordination between government, Ofgem, electricity network operators, manufacturers and international trading partners. Supply-chain resilience must be integrated with environmental protection, competition law and national security rather than pursued as an isolated industrial objective.