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South Africa desperately needs new sources of fixed investment and economic growth. The global artificial intelligence (AI) infrastructure boom offers an opportunity to attract billions in capital, expand electricity generation, and leapfrog into new industries. But opposition to industrial development threatens to hold the country back.

South Africa's central economic problem is that it has become trapped in a cycle of low investment, low growth, and high unemployment. Fixed investment has fallen from 22% of GDP in 2008 to just above 13% in 2026. An economy investing so little in new productive capacity cannot reasonably expect to sustain the growth rates required to reduce unemployment or improve living standards. Breaking this cycle requires attracting substantial private capital into industries with strong international growth prospects. One of the most promising opportunities is the extraordinary global expansion of AI data centres, an industry in which South Africa possesses several competitive advantages but remains severely underdeveloped.

Advisory firm Frans Cronje Private Clients estimates that the global expansion of data centres will create an extraordinary opportunity for countries able to attract investment in new computing infrastructure. Property advisory firm Jones Lang LaSalle (JLL) estimates that global data centre investment could approach $3 trillion by 2030, including construction and specialised computing equipment. The International Energy Agency expects global data centre electricity consumption to more than double from 415 terawatt-hours in 2024 to approximately 945 terawatt-hours in 2030.

The investment arithmetic is compelling. JLL estimates that constructing a data centre will cost approximately $11.3 million per megawatt (MW) in 2026, excluding specialised computing equipment, which can add as much as $25 million per MW. On these benchmarks, developing an additional gigawatt (a gigawatt is 1 000 MWs) of capacity in South Africa could involve $11.3 billion in construction investment alone, equivalent to approximately R192 billion. That is roughly 2.5% of South Africa’s 2025 GDP, although expenditure would occur over several years and some equipment would be imported.

South Africa already leads the African data centre industry, with estimates placing its installed capacity at approximately 500 MW in 2025. The United States, by comparison, had approximately 40 GW capacity. Adjusted for population, America has well over ten times South Africa’s installed capacity per person, although the underlying estimates cover somewhat different categories of facilities. This illustrates the considerable scope for expansion, particularly as demand for digital services increases across Africa.

One of the world’s largest data centre operators, California-based Equinix, is already investing approximately $160 million in a flagship facility in Germiston, Ekurhuleni, with a much larger proposed development near Cape Town International Airport. South Africa’s advantages include sophisticated financial services, established telecommunications networks, international submarine cable connections, and a geographic position suited to serving much of sub-Saharan Africa. However, Egypt, Kenya, Morocco, and Nigeria are also competing to attract these investments.

The economic benefits would extend far beyond the construction of the data centres themselves. Large facilities generate demand for electrical engineering, telecommunications infrastructure, cooling technology, transformers, security, and specialised maintenance. They also create the foundations for new industries in software development, financial technology, medical research, logistics, and AI applications. South African companies could use locally available computing infrastructure to develop and export services across a rapidly expanding African market.

This is where the opportunity for economic leapfrogging becomes particularly important. AI allows developing economies to adopt advanced technologies without first replicating every stage of industrial development experienced by richer countries. In mining, AI can improve mineral exploration and equipment maintenance. In agriculture, it can improve crop monitoring and resource efficiency. In manufacturing and logistics, it can optimise production and supply chains. In healthcare, AI-assisted screening technologies can help rural clinics diagnose diseases such as tuberculosis more quickly. The productivity benefits could ultimately be considerably larger than the direct investment in data centres.

Electricity presents a challenge, but also an opportunity. AI data centres require substantial amounts of reliable power. Yet large, creditworthy customers could provide the long-term demand necessary to finance additional private electricity generation and transmission infrastructure. South Africa also has scope to improve the performance of its existing coal fleet. With Eskom reporting approximately 5 500 MW of surplus capacity in late 2026, partly reflecting the country’s weak economic growth, attracting new electricity-intensive industries could help turn underutilised productive capacity into economic activity. Sustained expansion would nevertheless require careful planning for additional generation and grid connections.

Water consumption is another consideration, particularly in the Western Cape. However, closed-loop cooling systems, alternative cooling technologies, and the use of treated wastewater can substantially reduce pressure on municipal water supplies. These are engineering and infrastructure challenges that can be addressed through appropriate project design rather than blanket restrictions on investment.

Despite these opportunities, environmental activists have begun organising against major data centre developments. The Housing Assembly, an activist group based in Cape Town, and an anti-tech British lobbying group, Foxglove, have challenged the approval of the Cape Town Equinix development, citing concerns about electricity, water, and environmental impacts. They have also called for a suspension of further approvals pending new regulatory guidelines.

Such opposition threatens to repeat a familiar pattern in which left-wing activism obstructs the industrial development South Africa desperately needs. Environmental concerns deserve practical answers, but indefinite delays and investment moratoriums risk driving international capital towards competing African economies. The consequence would be fewer opportunities for South African businesses, less investment in infrastructure, and the continuation of the low growth conditions that have kept millions of South Africans unemployed.

South Africa cannot escape its economic stagnation without a substantial increase in fixed investment. The global AI infrastructure boom offers a rare opportunity to attract international capital, expand electricity generation, develop new industries, and improve productivity across the economy. Whether the country seizes that opportunity will depend on its willingness to welcome large-scale industrial investment rather than allow it to be obstructed.