Introduction

The Administrative Legitimacy of Electricity Regulation refers to the legal justification, procedural fairness, transparency, accountability, rationality and institutional authority underlying decisions made by electricity regulators. In South Africa, electricity regulation is principally governed by the National Energy Regulator Act 40 of 2004 (NERA), the Electricity Regulation Act 4 of 2006 (ERA), the Constitution and the Promotion of Administrative Justice Act 3 of 2000 (PAJA). Administrative legitimacy requires regulators such as NERSA to exercise statutory powers within their lawful mandate while providing affected stakeholders with meaningful procedural protections.

Electricity regulation has significant consequences because decisions concerning tariffs, licences, generation, transmission, distribution and supply directly affect households, municipalities and businesses. The Supreme Court of Appeal has expressly held that NERSA's tariff decisions constitute administrative action and may be reviewed under PAJA.

Statutory Foundation of Administrative Legitimacy

NERSA derives its authority from NERA and ERA. Under ERA, NERSA regulates prices and tariffs, considers electricity licences, establishes regulatory rules and monitors compliance. The regulatory framework therefore creates a structured allocation of authority between government policy-makers, NERSA, Eskom, municipalities and other electricity participants.

Administrative legitimacy requires more than possessing statutory power. Section 33 of the Constitution requires administrative action to be lawful, reasonable and procedurally fair, while PAJA provides the principal statutory mechanism for reviewing administrative decisions.

NERSA's own statutory obligations reinforce this principle. The SCA in NERSA v Borbet noted that members of the Energy Regulator must act in a justifiable and transparent manner, independently of undue influence, in the public interest and consistently with the responsibilities of public office.

Tariff Regulation and Procedural Legitimacy

Tariff determination is one of the clearest areas in which administrative legitimacy becomes important. Electricity prices affect both consumers and the financial sustainability of electricity suppliers. Consequently, NERSA must balance statutory tariff objectives with the interests of affected stakeholders.

In NERSA v Borbet SA (Pty) Ltd [2017] ZASCA 87, the Supreme Court of Appeal held that NERSA's decision concerning Eskom's tariff adjustment was administrative action reviewable under PAJA. The Court rejected the proposition that the decision was immune from judicial scrutiny merely because it involved specialised regulatory policy. It explained that NERSA performs an administrative function when applying the statutory and regulatory framework to tariff applications.

The judgment is important because it establishes that technical expertise does not remove legal accountability. NERSA retains regulatory discretion, but that discretion must be exercised rationally, fairly and within the governing methodology.

Rationality and Regulatory Consistency

Administrative legitimacy also depends upon rational decision-making. In Borbet, the Court explained that administrative decisions may be reviewed where they lack a rational connection to the purpose of the empowering provision, the information available to the decision-maker or the reasons provided for the decision. Procedural unfairness can likewise justify review.

This principle is particularly significant in electricity regulation because tariff methodologies, revenue calculations and technical assessments are highly specialised. Courts generally recognise the expertise of regulators, but judicial review remains available to ensure that statutory powers have actually been exercised according to law.

Public Participation and Transparency

Administrative legitimacy requires affected stakeholders to have an appropriate opportunity to participate in significant regulatory decisions. Electricity tariff decisions can affect municipal budgets, business costs and household expenditure, making transparency especially important.

Recent litigation demonstrates the continuing importance of this requirement. In AfriForum NPC v NERSA and Others, the Pretoria High Court in 2025 declared invalid NERSA's public-participation process concerning municipal tariff approvals for the 2025/2026 financial year, although the court did not immediately set aside the approvals. The decision illustrates that procedural requirements can be legally significant even where the underlying tariff decision is not automatically invalidated.

An earlier 2024 AfriForum judgment likewise concerned whether municipal electricity tariffs approved by NERSA were determined according to the legally applicable cost-of-supply framework. The case illustrates the importance of transparent methodologies when regulatory decisions directly affect end-users.

Institutional Accountability and Electricity Supply

Administrative legitimacy also extends beyond tariff-setting to decisions affecting electricity supply itself. In Eskom Holdings SOC Ltd v Vaal River Development Association [2022] ZACC 44, the Constitutional Court examined the interconnected statutory framework governing Eskom, NERSA, municipalities and electricity users. The Court emphasised that electricity governance operates through an integrated regulatory structure in which different institutions possess distinct powers and responsibilities.

Similarly, in Eskom Holdings SOC Ltd v Lekwa Ratepayers Association [2022] ZASCA 10, the Supreme Court of Appeal stressed that Eskom, as an organ of state, must exercise its statutory powers consistently with its constitutional obligations when dealing with electricity supply to municipalities.

Judicial Review and Legitimacy

Judicial review is therefore an important mechanism for maintaining administrative legitimacy. Courts do not ordinarily replace the regulator's decision with their own merely because another decision might have been possible. Instead, review focuses on legality, rationality, procedural fairness, relevant considerations, statutory compliance and proper exercise of discretion.

The principle is especially important in technically complex electricity regulation. Courts recognise regulatory expertise while ensuring that expertise does not become immunity from legal scrutiny. Borbet expressly recognised the need for judicial restraint while maintaining meaningful review of administrative decisions.

Conclusion

The Administrative Legitimacy of Electricity Regulation rests upon lawful authority, rational decision-making, transparency, procedural fairness, public participation, institutional independence and accountability. South African electricity regulators exercise significant public powers, but those powers remain subject to constitutional and administrative-law controls.

The case law demonstrates this balance clearly. NERSA v Borbet establishes that tariff decisions are administrative action capable of review; Eskom v Vaal River Development Association confirms the integrated nature of the electricity regulatory framework; Eskom v Lekwa Ratepayers Association emphasises constitutional accountability in electricity supply; and the recent AfriForum litigation demonstrates the continuing importance of proper public participation and transparent tariff processes. Administrative legitimacy therefore ensures that electricity regulation is not merely technically effective, but also legally authorised, procedurally fair and accountable to those affected by regulatory decisions.