ZERO-EMISSION SYSTEM GOVERNANCE STRUCTURES

Introduction

Zero-emission system governance structures are the legal, regulatory and institutional arrangements used to guide electricity systems toward generation technologies that produce little or no operational greenhouse-gas emissions. They cover renewable generation, storage, transmission development, market design, grid access, emissions governance and the gradual replacement of carbon-intensive electricity technologies. In South Africa, this governance framework operates through constitutional environmental principles, electricity legislation, climate legislation, environmental regulation and energy-planning mechanisms.

The objective is not merely to introduce renewable technology, but to establish institutions capable of coordinating decarbonisation, electricity security, affordability, grid reliability and a just energy transition.

Constitutional and Legislative Framework

Section 24 of the Constitution of the Republic of South Africa, 1996 guarantees everyone the right to an environment that is not harmful to health or well-being and requires reasonable legislative and other measures to prevent pollution and secure ecologically sustainable development.

The Climate Change Act 22 of 2024, which substantially commenced on 17 March 2025, establishes South Africa's statutory framework for an effective climate response and a long-term transition toward a low-carbon and climate-resilient economy.

The National Environmental Management Act 107 of 1998 (NEMA) complements this framework by incorporating sustainable development, cooperative environmental governance and environmental assessment into governmental decision-making.

Electricity Market Governance

The Electricity Regulation Act 4 of 2006 establishes the national framework for regulating electricity generation, transmission, distribution and trading through NERSA. The Electricity Regulation Amendment Act 38 of 2024, effective from 1 January 2025, substantially reforms this structure by introducing competitive electricity trading and institutional arrangements for transmission and system operation.

The amended regime provides for functions including system operation, market operation, transmission planning and non-discriminatory access to the transmission system. The system operator must operate the integrated electricity system safely, securely, efficiently and sustainably.

These arrangements are especially important for zero-emission systems because large-scale wind and solar generation require transparent grid access, transmission expansion, forecasting, balancing mechanisms and flexible electricity markets.

Institutional Structure

Effective zero-emission governance requires coordination among NERSA, the Department responsible for electricity and energy policy, environmental authorities, transmission and system operators, municipalities and private generators.

Governance should address renewable-energy procurement, generation licensing or registration, grid connection, transmission investment, market rules, environmental approval and long-term system planning. Storage, demand-response technologies and flexible generation can also support system reliability where variable renewable generation becomes dominant.

Case Name/Citation: Earthlife Africa Johannesburg v Minister of Environmental Affairs and Others [2017] ZAGPPHC 58

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

Legal Issue: Whether climate-change impacts were relevant considerations that had to be properly considered when deciding whether to authorise the power station.

Judgment: The High Court held that climate impacts were relevant to environmental decision-making and found deficiencies in the authorisation process.

Legal Principle/Ratio: Environmental authorities must integrate climate-change considerations into decision-making where they are materially relevant.

Significance: The case provides an important governance principle for electricity-system decarbonisation: generation planning cannot treat climate consequences as legally irrelevant. Zero-emission governance therefore requires climate considerations to be integrated into infrastructure authorisation.

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

Facts: The dispute concerned environmental authorisation for construction of a filling station and whether relevant socio-economic and environmental considerations had been adequately assessed.

Legal Issue: What obligations environmental authorities have when balancing economic development against environmental protection.

Judgment: The Constitutional Court stressed that sustainable development requires integration rather than separation of environmental, social and economic considerations.

Legal Principle/Ratio: Sustainable development requires decision-makers to reconcile development objectives with environmental protection.

Significance: Zero-emission electricity governance must therefore consider not only emission reduction but also affordability, employment, energy security and social consequences associated with the energy transition.

Governance Challenges

Major challenges include insufficient transmission capacity, renewable-energy curtailment, investment uncertainty, coordination between government institutions and ensuring that affected workers and communities participate meaningfully in transition processes. Governance structures must therefore combine market reform, environmental accountability, infrastructure planning and social protection.

Conclusion

Zero-emission system governance structures provide the institutional architecture through which South Africa can progressively decarbonise electricity while maintaining reliable and affordable supply. The Climate Change Act, NEMA and the reformed Electricity Regulation Act increasingly connect environmental objectives with electricity-market and transmission governance. Case law confirms that climate impacts and sustainable development must remain integral considerations in energy-system decision-making.