South Africa: AI Data Centre Electricity Pricing Structures Emerge

• South Africa faces a surge in electricity demand from new hyper-scale AI data centres planned for Durban, Cape Town, and Johannesburg, collectively requiring over 1000MW.
• Eskom is engaging with tech giants like Amazon and Microsoft regarding power supply, raising questions about potential preferential electricity pricing similar to historical discounts given to large industrial users.
• The National Energy Regulator of South Africa (Nersa) plays a critical role in approving such pricing agreements, which could impact operational costs and expose companies to human rights litigation.
• The increased AI electricity demand South Africa could lead to higher residential tariffs and exacerbate energy poverty, while also hindering decarbonization efforts due to reliance on Eskom's coal-dominated grid.
• The expansion highlights a tension between technological growth and fundamental human rights, including equitable access to energy and a healthy environment, particularly given the existing energy challenges in informal settlements.

The potential for data centres to secure discounts, even as millions in South Africa continue to grapple with energy poverty and high prices, is a contentious issue that demands careful regulatory scrutiny.

South Africa is poised for a significant increase in electricity consumption driven by the planned introduction of new hyper-scale data centres, primarily necessitated by the accelerating demands of artificial intelligence (AI). These advanced facilities, which are distinct from existing standard data centres, require substantial power to manage high-intensity AI workloads, such as training and operating large language models. This expansion is set to exacerbate the nation's persistent energy challenges, which already impact access to reliable, clean, and affordable energy for many citizens.

Plans are currently underway for the construction of these power-intensive data centres in key metropolitan areas, including Durban, Cape Town, and Johannesburg. Collectively, these new facilities are projected to demand an electricity capacity exceeding 1000MW. To illustrate the scale of this demand, documents presented to the eThekwini council twice referenced a single data facility requiring 400MW, a figure the City has since stated is unconfirmed. Should such a facility materialize at 400MW, its electricity consumption alone would equate to approximately 25% of Durban's current total electricity usage, highlighting the immense AI electricity demand South Africa is facing.

This burgeoning demand for power from the AI sector unfolds against a backdrop where many residents in Durban's informal settlements still lack basic electricity access or rely on precarious illegal connections. The rapid progression of these power-hungry data centre projects, while energy poverty remains a widespread issue, underscores a critical tension between technological advancement and fundamental human rights, including access to essential services, dignity, and equality, all enshrined in the country's Constitution.

A key question emerging from this expansion concerns the electricity pricing structures that will apply to these new hyper-scale data centres. Historically, large industrial energy consumers in South Africa, particularly within the minerals-energy complex, have benefited from substantial electricity discounts. For instance, South32 reportedly received an approximate 50% discount from Eskom under a negotiated pricing agreement, which was subsequently approved by the National Energy Regulator of South Africa (Nersa). This precedent raises concerns about whether the new data centre operators will receive similar preferential treatment.

Eskom, South Africa's primary power producer, is actively engaging with global technology leaders like Amazon and Microsoft, who are at the forefront of the 'AI race' and have a presence in the country's data centre landscape. The utility views data centres as a significant new commercial opportunity, especially given its current power surplus. This surplus, estimated at around 6GW of offline power, results from improvements in Eskom's supply capabilities combined with a notable decline in demand from other economic sectors. The evolving discussions around Eskom data centre power tariffs and Nersa hyper-scale data centre regulation will be crucial in determining the financial landscape for these operations.

For lawyers and compliance officers, monitoring Nersa's and Eskom's evolving policies on electricity pricing and preferential agreements for hyper-scale data centres is paramount. Such agreements could significantly impact operational costs for companies, potentially expose them to human rights litigation if they are perceived to exacerbate energy inequality, and influence their broader ESG compliance strategies. The potential for data centres to secure discounts, even as millions in South Africa continue to grapple with energy poverty and high prices, is a contentious issue that demands careful regulatory scrutiny.

Beyond the immediate pricing concerns, the proliferation of AI data centres carries significant broader societal and environmental implications for South Africa. Even without preferential discounts, the increased electricity demand from these facilities could contribute to higher residential electricity prices, a phenomenon already observed in the United States, a global hub for data centre development. Should data centre power demand begin to outstrip national capacity, it would necessitate the construction of new generation infrastructure and improvements to transmission and distribution networks. The costs associated with these upgrades could then be passed on to residential customers through revised rate designs, special contracts, or incentive packages, effectively deferring data centre operator costs to the general public.

Furthermore, the environmental footprint of this expansion is considerable. Eskom, which generates the vast majority of South Africa's electricity, relies heavily on coal, with coal-fired power accounting for 83% of local generation in 2024. A rapid expansion of data centres dependent on Eskom's grid would therefore lock the nation into continued reliance on coal, leading to increased emissions of toxic air. This reliance on fossil fuels for AI electricity demand South Africa could significantly impede the country's decarbonization efforts, slowing progress towards cleaner energy sources.

The potential for increased electricity tariffs for ordinary citizens and the environmental consequences of greater coal dependence underscore the critical need for comprehensive regulation. The data centre human rights impact SA must be carefully considered, ensuring that the benefits of technological advancement do not come at the expense of equitable access to energy or environmental sustainability for the broader population.

Lawyers and compliance officers should monitor Nersa and Eskom's evolving policies on electricity pricing and preferential agreements for hyper-scale data centres, as these could impact operational costs, expose companies to human rights litigation, and influence ESG compliance strategies.

Source: Original reporting via MyBroadband