The National Energy Regulator of South Africa (Nersa) recently announced that it has approved several key decisions that will pave the way for a competitive electricity market. Energy Exchange of Southern Africa's (EXSA) chief technology officer, Shailin Moodley, cautions that this move needs to be balanced with a careful approach to promote energy security and a stable electricity system.
To promote competition, increased power capacity and additional investment, South Africa must make the transition to a liberalised market quickly.
And policy alone is not enough to chart the course to this future.
The willingness to learn from the successes and challenges faced by other countries that have taken the journey toward liberalised energy markets can provide much-needed direction.
Approach with caution
South Africa is set to launch the wholesale power market in 2026.
The South African Wholesale Electricity Market will be a critical step in our energy reform and seeks to open the sector for increased competition, transparency, and economic efficiency in the sector.
While the momentum is encouraging, a lot can go wrong when introducing a new market.
The experiences from markets ahead of us on the curve offer crucial lessons in what can go wrong when a market is opened.
Texas, United States
Texas’s “energy-only” market has highlighted the drawbacks of price volatility in the sector.
The model works by paying power producers only for the energy they produce, instead of making capacity payments as well.
While this approach attracts significant investment, it can result in extreme price hikes when supply is low.
For example, the 2021 Winter Storm Uri resulted in millions of Texans losing power when wholesale prices spiked to their maximum cap, causing devastating losses for market participants and extreme financial pressure for consumers.
This case holds a major warning for South Africa: a market designed without robust mechanisms for grid stability and capacity payments could lead to extreme price volatility and a potential loss of public trust.
India
For India, the financial woes of its state-owned distribution companies have hindered liberalisation efforts in the electricity market.
Decades of regulated, subsidised tariffs have rendered these utilities debt-laden – dampening prospects for long-term Power Purchase Agreements (PPAs) with private generators.
This created a high-risk environment and tends to slow down investment.
Similarly, some of our utilities also hold significant debt and therefore face a similar risk.
A transparent plan to address this debt or empower distributors to participate in the market is crucial.
Australia
The energy transition in Australia has been negatively impacted by inconsistent long-term government policy.
Ongoing shifts in political direction and the lack of a stable, established emissions framework have subdued investment appetite.
New generation projects have therefore been slow to come online, resulting in price volatility and supply consistency issues.
For South Africa, this underscores the importance of robust consensus on energy policy.
The Integrated Resource Plan and other key frameworks must be treated as long-term blueprints, not as political footballs, to inspire trust in the system and energy security.
Positive outcomes
Despite the challenges faced in other markets, the global experience also provides a blueprint for success.
Positive outcomes from other countries offer key insights into the levers that can be pulled to navigate successfully towards an open energy market.
Nordics
The Nordic countries' success in terms of energy transition is built on a strong foundation of cross-border grid integration.
Nord Pool market allows power to flow freely between countries, providing a vast balancing area and reducing reliance on local supply and, inherently, diversifying supply.
As a member of the Southern African Power Pool, South Africa can leverage this model.
By strengthening its regional interconnections and embracing transparent trading, it can improve energy security and provide a larger, more attractive market for investors.
It also holds the opportunity to spearhead and support the energy transition for the Southern African region.
Brazil and Australia
Brazil's dual-market model and Australia's open market have shown the power of private-to-private transactions.
These approaches enable large industrial and commercial customers to bypass the traditional utility and sign direct PPAs with private generators.
This provides a clear, bankable business case for the new generation, independent of government procurement.
South Africa's move to remove the licensing cap for private generation is already unlocking a wave of private investment, with over 100 projects in the pipeline.
This is a strong indicator that the market is moving towards a more efficient, customer-focused model.
Notwithstanding this, grid capacity must urgently be addressed to realise the value of these projects.
Without an effective transmission system, increased production is nullified.
Japan
The opening of Japan's energy markets, which were muted for decades, was fast-tracked by the Fukushima disaster — a Level 7 nuclear crisis on the International Nuclear and Radiological Event Scale.
The crisis created an undeniable and urgent mandate for change.
Similarly, South Africa’s ongoing energy crisis has forced political and social will for reform.
The urgency enabled the unbundling of Eskom and the rapid introduction of new legislation, like the Electricity Regulation Amendment Act.
This "crisis as a catalyst" is a powerful driver for change that can overcome long-standing barriers.
Equitable energy future
What is unique about South Africa’s energy transition is that we are not just modernising our grid; we are also liberalising the market at the same time.
With new policies driving competition and cutting-edge technologies coming online, we have the opportunity to learn from global markets and build a more efficient and equitable energy future for South Africa.
