Eskom has suspended load shedding, offering South Africans much-needed relief from rolling blackouts. However, energy experts caution that this reprieve may not last long. As winter approaches, increased electricity demand is expected to put further strain on the national grid, potentially forcing Eskom to reinstate power cuts.

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Temporary Relief Amid Ongoing Challenges

Eskom announced the suspension of load shedding following improved grid stability. However, just days earlier, the power utility implemented stage 2 load shedding without prior notice, highlighting the fragility of the electricity supply. Over the past month, South Africa has experienced four rounds of load shedding, with Eskom citing higher demand and generation constraints as the main reasons.

According to former Eskom executive and energy expert Vally Padayachee, the temporary suspension of power cuts does not guarantee long-term stability. He emphasized that Eskom’s reserve margin—the extra capacity required to handle unexpected breakdowns—remains inadequate, making it difficult for the utility to manage rising winter demand.

Winter Demand Could Trigger More Blackouts

Energy demand typically spikes during winter, as households and businesses rely more on heating appliances, geysers, and electric blankets. Padayachee warned that Eskom’s current energy availability factor (EAF) stands at only 60%, far below the 70-75% needed to eliminate load shedding entirely.

This raises concerns about Eskom’s ability to meet winter electricity demand. If major power stations fail to return from maintenance on schedule, the country could face another round of severe blackouts.

Deeper Issues Beyond Maintenance

Padayachee highlighted that Eskom’s challenges extend beyond technical and financial problems. The power utility also faces:

Ageing infrastructure – Many of Eskom’s coal-fired power stations are decades old, requiring constant repairs.
Procurement and contractor inefficiencies – Poor-quality components and incompetent contractors hinder repair work.
Financial constraints – A lack of funding has slowed down essential upgrades.
Leadership instability – Frequent management changes have impacted Eskom’s ability to implement long-term solutions.

Until these systemic issues are resolved, Eskom’s ability to provide reliable electricity will remain uncertain.

Fragile Grid and Delayed Repairs

According to energy and infrastructure finance specialist Ruse Moleshe, Eskom has managed electricity supply relatively well despite recent outages. However, she pointed out that the delays in returning power plants to operation and the fragile state of the grid remain significant concerns.

Moleshe noted that while recent power cuts were mostly caused by failures in auxiliary equipment—such as transformers—rather than major generator breakdowns, the lack of sufficient reserve capacity means South Africa is still at risk of load shedding.

Planned Maintenance and Future Outlook

To prepare for winter, Eskom has increased planned maintenance efforts. The power utility recently announced that 6,793MW of capacity is currently under maintenance, with a goal of 7,500MW in the coming months.

Moleshe acknowledged that Eskom has made progress in improving its EAF, allowing it to conduct more maintenance without immediately triggering load shedding. She added that returning the remaining Kusile and Medupi power station units to service will help enhance grid stability.

However, with peak winter demand approaching, Eskom may still need to rely on emergency reserves, especially during the morning and evening peak hours.