After years of load-shedding, South Africa’s electricity crisis is creating an unexpected problem for Eskom: too much available power. The utility’s energy availability has improved significantly as generating units return from maintenance and unplanned outages decline. Eskom is now reporting several gigawatts of surplus peak capacity, leaving it with electricity that could otherwise remain unused. For a utility under severe financial pressure, simply having generation capacity sitting idle does not generate revenue.
Eskom is therefore looking for large, predictable customers capable of absorbing this excess electricity. Hyperscale data centres are an obvious target. Companies such as Amazon, Microsoft and Google operate facilities that consume enormous amounts of electricity and require highly reliable power around the clock. Eskom chair Mteto Nyati has confirmed that the utility is in discussions with major technology companies, seeing data centres as precisely the kind of power-intensive industries that could provide the long-term demand it needs.
The potential scale is significant. Eskom has indicated that it could have around 3–6 GW of cold reserve capacity available, depending on operating conditions. Fully absorbing that surplus would require a dramatic expansion of South Africa’s data-centre industry. But the opportunity extends beyond selling electricity. New hyperscale facilities would bring investment in buildings, fibre networks, cooling systems, engineering services and digital infrastructure, while potentially strengthening South Africa’s position as a regional hub for cloud computing and artificial intelligence.
The shift also illustrates how South Africa’s energy story is changing. For years, electricity shortages constrained industrial investment and forced businesses to invest heavily in backup generation. Now, improved generation availability is creating an opportunity to attract industries specifically because the country has power to spare. Data centres could become one of several energy-intensive sectors—including green hydrogen, mining and advanced manufacturing—that help convert excess generation into economic activity.
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The strategy is not without challenges. Hyperscalers require extremely high reliability, competitive electricity prices, suitable grid connections and significant water and telecommunications infrastructure. Eskom must also balance the need to monetise surplus capacity with the longer-term requirements of an increasingly competitive electricity market. But the underlying proposition is powerful: South Africa is attempting to turn an electricity surplus that would otherwise weigh on Eskom’s finances into a competitive advantage for attracting the next generation of digital infrastructure.
