Why SAWEM is a Defining Opportunity for Wind Energy - If South Africa Gets the Fundamentals Right
The launch of the South African Wholesale Electricity Market (SAWEM) marks a decisive break from the legacy single-buyer model and signals the country’s intent to build a competitive, decentralised, and transparent electricity system.
For the wind industry, this reform is not hypothetical - it is a defining opportunity to embed wind energy at the centre of South Africa’s energy planning and mix. But opportunity alone is not enough. SAWEM will only succeed if the fundamentals are in place and credible from day one.
Unlocking Market Access Beyond REIPPPP
For more than a decade, renewable energy deployment has relied heavily on government-led procurement programme, otherwise known as “Renewable Energy Independent Power Producer Procurement Programme (REIPPPP).” SAWEM changes that equation.
By introducing bilateral contracts, power exchanges, and ancillary service participation, the market creates multiple routes to investment and growth. For wind, with its near-zero short-run marginal cost, this diversification is a structural advantage. In a well-functioning wholesale market, competitiveness translates directly into market share.
Institutional Readiness: Progress, But Gaps Remain
South Africa has made meaningful strides in preparing for an evolved electricity market: the establishment of National Transmission Company South Africa (NTCSA) in 2024, who subsequently developed the Market Code, and the rolling out of the SAWEM School in just under 24-months.
Being mindful of constrained governance and operational frameworks that state owned entities operate under, these developments signal serious intent. Yet readiness remains uneven. A competitive market requires clear rules, real-time system operation, transparent pricing, and robust oversight. NTCSA’s decision to delay the launch to the third quarter of 2026 reflects this reality. Credibility must take precedence over speed; but credibility depends on visible capability from day one.
The Defining Risk: Grid Constraints
No market reform can succeed without a capable transmission backbone. South Africa’s grid remains constrained, especially in provinces with the richest wind resources. Without accelerated expansion, liberalisation risks entrenching regional inequality and suppressing renewable uptake. The message is clear: “Break the Gridlock! Wire for Growth!” Transmission reform and market reform must advance in parallel, not sequentially.
Managing the Coal Transition
Market liberalisation will inevitably expose Eskom’s coal fleet to competitive pressures. Older, less efficient plants will be dispatched less often, revenues will decline, and the utility’s financial model will need to evolve. The risk lies not in the transition itself but in failing to manage it. A structured pathway, including repurposing infrastructure and investing in system flexibility, is essential to avoid resistance and ensure reform momentum.
Oversight: Guardrails Against Disorder
Electricity markets are uniquely vulnerable to manipulation. South Africa has the advantage of designing SAWEM with global lessons in mind. NERSA’s role will be critical: oversight must be proactive, technically sophisticated, independent, and well-resourced. Market credibility will hinge on whether participants trust the system to be fair, transparent, and enforceable.
Reform Must Translate Into Delivery
SAWEM is not a project; it is a process. If implemented effectively, it can unlock investment, accelerate renewable integration, and strengthen long-term energy security. If poorly executed, it risks destabilising institutions and undermining confidence. For wind, the stakes are high: under the IRP 2025, South Africa targets 7.3 GW of new wind capacity by 2030 - requiring sustained annual deployment. SAWEM is the enabler of that growth.
The wind industry stands ready not only to participate in SAWEM but to actively shape it. This is a defining opportunity to build a market that is competitive, investable, resilient, and aligned with South Africa’s energy and developmental objectives. The fundamentals must be right - because credibility, not speed, will determine whether SAWEM delivers on its promise.
