South African electricity utility Eskom is actively exploring innovative strategies to monetize its surplus daytime electricity, particularly by selling it to Bitcoin mining companies. This initiative comes as the rapid adoption of rooftop solar installations across South Africa significantly reduces the demand on the national grid during daylight hours, leading to an increasing and predictable pattern of unused capacity for Eskom.

Eskom chairman Mteto Nyati, speaking at the Biznews Conference 2026 in Hermanus, highlighted the utility's evaluation of creative methods to utilize this mid-day power surplus. The shift in electricity demand is a direct consequence of many households and businesses generating their own power through solar panels, causing grid demand to fall once solar generation ramps up after initial morning spikes.

One primary option under consideration is offering discounted electricity to Bitcoin mining operations within South Africa. This sector, characterized by large data centers performing energy-intensive computations to secure the Bitcoin network, represents a growing source of global power consumption that did not exist two decades ago. By supplying excess electricity to these miners, Eskom aims to generate revenue from power that would otherwise remain unused during peak solar production periods.

This strategic move aligns with earlier statements from Eskom chief executive Dan Marokane, who indicated the state-owned utility's interest in opportunities related to Bitcoin mining, artificial intelligence infrastructure, and large-scale data centers. These industries are attractive due to their requirement for substantial, continuous electricity supplies, which could provide new and consistent demand for Eskom's generation fleet.

Nyati framed this initiative as an integral part of Eskom's broader strategy to adapt to structural transformations within South Africa’s electricity market. The country's power sector is evolving, opening up to private investment and allowing independent companies to build generation capacity and compete in electricity distribution. Concurrently, the increasing adoption of rooftop solar is redirecting demand away from the national grid. Eskom, Nyati emphasized, must adapt to remain viable and competitive in this changing environment.

Beyond new revenue streams, Eskom is also committed to significant cost reductions, with plans to eliminate approximately R112 billion in expenses over the next five years. These reductions are expected to contribute to lower electricity prices for both households and energy-intensive industries such as mining and smelting.

Despite the dynamic changes in the energy landscape, Nyati reiterated the ongoing need for a robust national utility in South Africa. He argued that Eskom's coal and nuclear power stations are crucial for providing the base-load electricity necessary to support industrial growth and broader economic development. The proposal to supply discounted electricity to Bitcoin miners illustrates a contemporary trend where utilities are increasingly viewing flexible energy consumers as valuable tools for balancing supply and demand within an evolving power system.