UK ENERGY LAW AND ELECTRICITY SYSTEM — ELECTRICITY INFRASTRUCTURE AND JUDICIAL REVIEW

1. Introduction

Judicial review is a fundamental mechanism for ensuring the legality and accountability of decisions concerning UK electricity infrastructure. Major projects—including generating stations, transmission lines, substations, offshore wind connections and other nationally significant infrastructure—often require decisions by the Secretary of State, planning authorities, Ofgem/GEMA and other public bodies.

Judicial review examines the lawfulness of public decision-making rather than simply reconsidering whether the decision was desirable on its merits. Courts ordinarily do not substitute their preferred energy policy for that of the legally authorised decision-maker.

2. Legal Framework

The Electricity Act 1989 remains central to electricity regulation. It regulates licensing and establishes the statutory duties applying to the Secretary of State and GEMA, including the principal objective concerning the interests of existing and future consumers.

Large electricity infrastructure may also fall within the Planning Act 2008 nationally significant infrastructure regime. Judicial review and statutory challenges involving planning, development consent, environmental assessment and related matters are generally handled by the Planning Court within the Administrative Court.

Infrastructure decisions may therefore be challenged where decision-makers exceed statutory powers, misunderstand legislation, adopt legally irrational reasoning, breach procedural fairness, fail to consider legally mandatory factors, or violate applicable environmental or human-rights requirements.

3. Grounds of Judicial Review

Three traditional grounds are particularly important.

Illegality arises where an authority acts outside its statutory powers or misinterprets the legal framework governing its decision.

Procedural unfairness may arise where legally required consultation, hearings, environmental assessment or other procedures are defective.

Irrationality concerns decisions falling outside the lawful range of rational administrative judgment.

Electricity infrastructure litigation may additionally involve legitimate expectations, proportionality where applicable, environmental law and statutory duties relating to climate policy.

4. Case Law: R (Finch) v Surrey County Council

Case Name/Citation: R (Finch on behalf of the Weald Action Group) v Surrey County Council [2024] UKSC 20.

Facts: Surrey County Council granted planning permission for oil production at Horse Hill. The environmental impact assessment did not assess greenhouse-gas emissions produced when the extracted oil would ultimately be burned.

Legal Issue: Whether those downstream combustion emissions were legally required to be assessed as environmental effects of the project.

Judgment: The Supreme Court allowed the appeal and held that the relevant emissions fell within the project's effects requiring environmental assessment.

Legal Principle/Ratio: A decision-maker must correctly identify and assess environmental effects that legislation requires to be considered.

Significance: Finch demonstrates how judicial review can enforce environmental assessment obligations affecting energy infrastructure without the court itself determining whether the underlying project should ultimately proceed.

5. Case Law: Friends of the Earth v Heathrow Airport Ltd

Case Name/Citation: R (Friends of the Earth Ltd) v Heathrow Airport Ltd [2020] UKSC 52.

Facts: Environmental organisations challenged the Airports National Policy Statement supporting Heathrow expansion, arguing that the Secretary of State had unlawfully failed to take the Paris Agreement properly into account.

Legal Issue: Whether the designation of the policy statement was unlawful because of the treatment of the UK's Paris climate commitments.

Judgment: The Supreme Court allowed Heathrow Airport's appeal and restored the Airports National Policy Statement.

Legal Principle/Ratio: The Court interpreted the relevant statutory requirements governing what constituted government climate policy and concluded that the Secretary of State had not acted unlawfully on the grounds established before it.

Significance: Although concerning airport infrastructure, the judgment is highly relevant to energy infrastructure because it illustrates judicial restraint in complex infrastructure and climate-policy decisions while maintaining legal supervision of statutory compliance.

6. Case Law: Substation Action Save East Suffolk

Case Name/Citation: Substation Action Save East Suffolk Ltd v Secretary of State for Business, Energy and Industrial Strategy.

Facts: The claimant challenged development consent decisions for the East Anglia ONE North and East Anglia TWO offshore wind farms and their associated infrastructure. Grounds concerned matters including flooding, heritage effects, noise and reasons.

Legal Issue: Whether the Secretary of State had committed public-law errors when granting the development consent orders.

Judgment: The Planning Court dismissed the claim, finding, among other things, that the conclusions on flooding were not irrational, relevant matters had been addressed and the reasons satisfied the required legal standard.

Legal Principle/Ratio: Judicial review supervises the legality and rationality of infrastructure decisions but does not permit courts simply to remake planning judgments entrusted by Parliament to specialist decision-makers.

Significance: The litigation directly demonstrates judicial review operating within major offshore electricity infrastructure development.

7. Constitutional Importance

Judicial review creates an important balance between energy transition and the rule of law. Infrastructure must often be developed rapidly to increase renewable generation, reinforce networks and maintain security of supply. Yet urgency does not remove statutory requirements governing consultation, environmental assessment and rational decision-making.

Accordingly, courts provide legal accountability while leaving legitimate technical, economic and policy choices primarily to regulators, ministers and planning authorities.

8. Conclusion

Judicial review is therefore an essential constitutional safeguard within UK electricity infrastructure law. It ensures that Ofgem/GEMA, ministers, planning authorities and other public institutions exercise infrastructure powers within statutory limits, rationally, fairly and consistently with environmental obligations. Cases such as Finch, Friends of the Earth v Heathrow and Substation Action Save East Suffolk demonstrate that courts can scrutinise major infrastructure decisions without becoming substitute energy regulators or planning authorities. Judicial review thus reconciles infrastructure development with legality, accountability, environmental protection and the rule of law.