RISK-BASED DECISION-MAKING IN ELECTRICITY GOVERNANCE

1. Meaning and Regulatory Purpose

Risk-based decision-making in electricity governance is a regulatory approach under which public authorities, system operators and energy regulators identify, assess and prioritise risks before determining tariffs, licences, infrastructure investments, market rules, reliability standards or emergency measures. Electricity governance involves uncertainty arising from generation shortages, grid failures, extreme weather, cyber threats, fuel-price volatility, climate change, financial instability and rapidly changing technologies.

Rather than attempting to eliminate every possible risk, regulators determine the probability and potential consequences of different events and allocate regulatory attention and resources proportionately. The approach therefore combines risk assessment, precaution, proportionality, resilience and evidence-based administrative decision-making.

In South Africa, the Electricity Regulation Act 4 of 2006 seeks efficient, effective, sustainable and orderly electricity infrastructure while protecting present and future customers. The Electricity Regulation Amendment Act 38 of 2024, effective from 1 January 2025, strengthens market and system governance and requires the system operator to operate the integrated power system safely, securely, efficiently and sustainably.

2. Risk Identification and Assessment

Regulators must identify relevant technical, economic, environmental and social risks. Examples include insufficient generation reserves, transmission congestion, ageing assets, generator failure, demand uncertainty and exposure to catastrophic outages.

Risk assessment commonly considers:

probability of the harmful event;

scale and duration of consequences;

vulnerable consumers and critical infrastructure;

availability and cost of mitigation;

uncertainty in scientific or technical information; and

long-term systemic consequences.

South Africa's National Energy Act expressly links energy planning with security of supply, economics, consumer protection and sustainable development.

3. Precaution and Uncertainty

Electricity regulators sometimes face risks whose precise probability cannot be quantified. In such circumstances, precautionary measures may be justified where potential consequences are severe.

The principle does not mean that every uncertain project must be prohibited. Instead, decision-makers should obtain adequate information, examine credible risks and adopt proportionate safeguards. South African environmental law expressly recognises a risk-averse and cautious approach that accounts for limits in existing knowledge.

4. Risk-Based Infrastructure and Market Regulation

Risk-based governance affects grid expansion, maintenance and market design. Transmission operators may prioritise reinforcement where failure would produce widespread economic or reliability consequences. The amended Electricity Regulation Act requires transmission planning to incorporate capacity and demand outlooks and requires system operation to maintain safe and secure electricity supply.

Financial risks are also relevant. The 2024 reforms recognise that regulated returns may be proportionate to the risks associated with licensed activities, while allowing efficiency incentives.

5. Administrative-Law Controls

Risk-based discretion is not unlimited. Regulatory decisions must remain lawful, rational, procedurally fair and supported by relevant evidence. A regulator cannot simply invoke “risk” without explaining the evidential basis, probability, consequences and regulatory response.

Judicial review therefore acts as a safeguard against arbitrary risk assessments, inadequate investigation or failure to consider relevant factors.

6. Case Law

Fuel Retailers Association of Southern Africa v Director-General: Environmental Management [2007] ZACC 13

Facts: Environmental authorities authorised a new filling station, and the applicant challenged whether relevant environmental and socio-economic considerations had been properly assessed.

Legal Issue: Whether authorities were legally required to integrate environmental, economic and social considerations into their decision.

Judgment: The Constitutional Court emphasised integrated sustainable-development decision-making.

Legal Principle/Ratio: Authorities must properly assess relevant environmental consequences and apply NEMA principles, including its risk-averse and cautious approach.

Significance: The case establishes an important foundation for risk-conscious energy and infrastructure governance where uncertainty cannot simply be ignored.

Earthlife Africa Johannesburg v Minister of Environmental Affairs [2017] ZAGPPHC 58

Facts: Environmental authorisation was granted for the proposed 1,200 MW Thabametsi coal-fired power station without comprehensive prior assessment of its climate-change consequences.

Legal Issue: Whether climate-related risks constituted relevant considerations that had to be properly examined before final authorisation.

Judgment: The High Court held that climate-change impacts were relevant considerations and found the Minister's decision reviewable.

Legal Principle/Ratio: Infrastructure authorities must investigate material long-term risks sufficiently before making decisions that create enduring legal and physical consequences.

Significance: The judgment demonstrates that electricity governance must address both the risks created by electricity infrastructure and risks—such as climate change and water scarcity—that may threaten the infrastructure itself.

7. Conclusion

Risk-based decision-making enables electricity governance to move from reactive crisis management toward preventive and resilience-oriented regulation. Legitimate risk governance requires reliable evidence, transparent reasoning, proportional responses, precaution where uncertainty is material, continuous monitoring and judicially reviewable decision-making. Properly applied, it helps balance security of supply, affordability, investment, environmental protection, market efficiency and long-term system resilience.