South Africa’s electricity transition is entering a phase where adding more renewable generation will no longer be enough on its own. Speaking at the 2026 Windaba conference in Cape Town, Electricity and Energy Minister Kgosientsho Ramokgopa outlined 11 megatrends shaping the country’s electricity sector, spanning demand, supply, markets and infrastructure. While low-cost renewables are expected to anchor new generation and accelerate decarbonisation, the government’s assessment points to a broader challenge: building an electricity system capable of absorbing and delivering that new power reliably.
The pressure is coming partly from the changing nature of electricity demand. Industrial expansion and digitalisation are creating new and more variable loads, while government also needs to protect affordability and access for households and small businesses. This means the system has to accommodate more electricity consumption while keeping power affordable, making the transition a question of both generation capacity and how electricity is supplied and priced.
That puts flexibility at the centre of the next stage. Wind and solar can provide increasingly low-cost electricity, but their output varies with weather and time of day. Ramokgopa identified flexibility as a system requirement, alongside the need for new nuclear capacity and a stronger ability to manage changing generation patterns. The implication is that renewable projects need to be supported by technologies, markets and operating systems capable of balancing supply as the generation mix changes.
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The financing and infrastructure required to make that possible are equally important. South Africa’s electricity strategy identifies the need to localise energy supply chains, manage market volatility, mobilise innovative private finance and develop the skills required to operate critical grid, digital and market infrastructure. At the same time, transmission capacity needs to expand and existing infrastructure must be modernised to remove bottlenecks that could prevent new generation from reaching demand centres.
The experience of Spain and Portugal’s major blackout last year has also reinforced the importance of system design as renewable penetration rises. Ramokgopa noted that the subsequent analysis identified risks associated with bringing renewable generation onto the system too rapidly without sufficient attention to the wider electricity network. For South Africa, the next phase of the transition is therefore not simply about building more wind and solar. It is about building the transmission, flexibility, markets, skills, finance and resilience needed to turn new generation capacity into a reliable electricity system.
