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Hartmut Winkler, Professor of Physics, University of Johannesburg

Power cuts in South Africa: trend to get off the grid is gathering pace, but total independence is still a way off

Solar powered water heaters on rooftops above shacks in the Alexandra township in Johannesburg, South Africa. Waldo Swiegers/Bloomberg via Getty Images

South Africans have been battered by power shortages for several years. These have worsened to the point that towards the end of 2022 the country’s electricity utility, Eskom, had only half of its power generation capacity operational.

This has forced Eskom to escalate its rotational power cuts. By mid-January 2023, users were typically without electricity for 8 to 10 hours a day. The situation is unlikely to improve much in the short to medium term. It’s expected that this year, especially as power demand increases in winter, the country’s electricity supply will decline to the point where power may sometimes be available for only 12 hours a day.

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