SETTLEMENT RECONCILIATION DISPUTE MECHANISMS

1. Introduction

Settlement reconciliation dispute mechanisms are the legal and procedural arrangements used to resolve disagreements arising after electricity-market transactions have been measured, calculated and financially settled. In wholesale electricity markets, generators, traders, customers, system operators and balance-responsible parties submit schedules and meter data. The market operator then compares contracted or scheduled electricity with actual delivery and consumption, calculates imbalances, applies market prices and determines amounts payable.

Disputes may arise from inaccurate meter data, incorrect allocation of energy volumes, calculation errors, disputed imbalance charges, tariff application, delayed data corrections or disagreement over contractual responsibility. Effective reconciliation mechanisms are therefore essential to market confidence, liquidity and financial stability.

South Africa's developing competitive electricity framework gives particular importance to these processes. The Electricity Regulation Amendment Act 38 of 2024, effective from 1 January 2025, provides for an open competitive electricity market and requires a Market Code governing market operation.

2. Settlement and Reconciliation Process

Settlement normally begins with validated metering and scheduling information. Market systems determine how much electricity each participant injected, withdrew, purchased or sold. Differences between scheduled and actual quantities create imbalance positions that must be financially reconciled.

NERSA's draft electricity trading rules envisage traders submitting monthly reconciliations of energy volumes, financial transactions and revenue to the market operator. They also contemplate balancing costs being recovered from participants whose contracted supply obligations are not fulfilled.

A robust reconciliation process generally includes data validation, preliminary settlement statements, correction windows, revised calculations and final settlement. Participants must have sufficient access to relevant meter readings, calculations and pricing information to identify errors and challenge disputed amounts.

3. Dispute Resolution Architecture

Settlement disputes can arise at several levels. Contractual disputes between generators, traders and customers may first be governed by bilateral power purchase agreements. Market-code disputes may involve imbalance calculations, settlement data or compliance with trading rules. Regulatory disputes may concern licences, tariffs or obligations imposed under electricity legislation.

NERSA's draft trading rules provide that bilateral contracts should contain dispute-resolution provisions, while the Market Code should establish mechanisms for disputes between market participants. Matters remaining unresolved may be referred to NERSA for mediation or arbitration.

NERSA currently identifies dispute resolution as part of its electricity regulatory mandate and states that it resolves disputes involving market participants, licensees and customers through mediation and arbitration.

4. Case Law

Eskom Holdings SOC Ltd v Vaal River Development Association (Pty) Ltd [2022] ZACC 44

Facts: Eskom reduced electricity supplied to municipalities with substantial unpaid electricity debts, creating disputes concerning payment obligations and continuity of supply.

Legal Issue: Which legal mechanism governed disputes between Eskom, as licensee, and municipalities as electricity customers.

Judgment: The Constitutional Court held that section 30(1)(b) of the Electricity Regulation Act provides NERSA with jurisdiction to settle disputes between a licensee and customer.

Legal Principle/Ratio: Where specialised electricity legislation establishes a dispute-resolution mechanism, parties should ordinarily use that regulatory mechanism.

Significance: The case supports specialist resolution of settlement, billing and reconciliation disputes rather than immediately transferring technical electricity disagreements into ordinary litigation.

St Benedict's Abbey NPO v Eskom Holdings SOC Ltd [2025] ZALMPPHC 129

Facts: The applicant disputed Eskom's correction and reconciliation of historic electricity billing and later referred a complaint to NERSA.

Legal Issue: Whether the alleged reconciliation dispute prevented Eskom from enforcing undisputed current-account obligations.

Judgment: The Court found that the historic rebilling issue had previously been addressed through an acknowledgement of debt and that the applicant remained liable for its current account.

Legal Principle/Ratio: A genuine reconciliation dispute must be clearly identified and distinguished from amounts that are otherwise admitted or presently payable.

Significance: The decision illustrates the importance of defining the precise disputed settlement item and maintaining payment of undisputed amounts.

Burger t/a Nicouter Boerdery v Eskom Holdings SOC Ltd [2026] ZAGPPHC 171

Facts: The litigation involved disputed electricity accounts, tariff application and previous debatement of accounts.

Legal Issue: Whether historical contractual tariffs continued to govern subsequent electricity billing.

Judgment: The Court held that Eskom's tariffs are determined annually through NERSA's statutory tariff regime rather than permanently fixed by an earlier customer agreement.

Legal Principle/Ratio: Reconciliation must apply the legally effective tariff for the relevant billing period.

Significance: Settlement accuracy therefore depends not only on correct meter quantities but also on application of the correct regulatory price.

5. Conclusion

Settlement reconciliation dispute mechanisms protect the financial integrity of electricity markets by providing structured procedures for identifying and correcting disputed quantities, prices and imbalance liabilities. South Africa's emerging wholesale market combines contractual procedures, Market Code mechanisms, NERSA mediation or arbitration and ultimately judicial review. Effective reconciliation requires accurate data, transparent calculations, defined correction periods and clear separation between disputed and undisputed obligations. These safeguards become increasingly important as competitive electricity trading introduces larger numbers of generators, traders and balance-responsible participants into the national electricity market.