Eskom Signals Power Stability as Load Shedding Stays at Bay Ahead of Winter Surge

According to Eskom, the improved system performance is underpinned by enhanced generation reliability and disciplined operational execution, driven by the ongoing Generation Recovery Plan.

South Africa's power utility Eskom has reported a significant improvement in grid stability, maintaining a resilient electricity system even as demand rises with the onset of the winter season—traditionally the most challenging period for the country's energy supply.

In a major milestone, Eskom confirmed that it has now sustained at least 350 days without implementing load shedding, marking one of the longest uninterrupted periods in recent years and signaling tangible progress in its turnaround efforts.

Generation Gains Drive Stability

According to Eskom, the improved system performance is underpinned by enhanced generation reliability and disciplined operational execution, driven by the ongoing Generation Recovery Plan. This strategy has not only stabilized supply but also significantly reduced reliance on costly diesel-powered backup generation.

"The system remains stable and resilient despite increased winter demand pressures," Eskom said, emphasizing that current performance supports its Winter Outlook projection of no load shedding in the coming months.

A key indicator of this progress is the Energy Availability Factor (EAF)—a measure of how much generating capacity is operational—which has risen to 60.14%, reflecting:

• A 4.13 percentage point increase year-on-year

• A 4.52 percentage point improvement compared to two years ago

This upward trend highlights sustained recovery in plant performance across Eskom's fleet.

Sharp Decline in Unplanned Outages

Further strengthening grid stability, Eskom reported a notable reduction in unplanned outages:

• Average outages dropped to 12,795 MW between April 24–30, 2026

• Down by 1,854 MW from 14,649 MW in the same period last year

The Unplanned Capacity Loss Factor (UCLF) also improved significantly:

• Reduced to 26.65%, from 30.86% a year earlier

• Representing a 4.21 percentage point decline

These improvements have eased pressure on the grid, ensuring more consistent electricity supply across the country.

Diesel Costs Slashed by Over 80%

One of the most striking outcomes of Eskom's recovery plan is the dramatic reduction in diesel usage for Open Cycle Gas Turbines (OCGTs), which are typically used as emergency backup:

• R374.93 million spent in April 2026

• Down sharply from R2.347 billion during the same period last year

This reduction not only reflects improved operational efficiency but also delivers substantial cost savings, easing Eskom's financial burden.

Additional Capacity Boost for Peak Demand

To further strengthen supply during high-demand periods, Eskom announced that 3,063 MW of additional generation capacity will be brought online ahead of the evening peak, reinforcing system reliability during critical hours.

Progress on Ending Load Reduction

Beyond load shedding, Eskom is also making headway in addressing load reduction, a targeted measure used in high-risk areas to protect infrastructure from illegal connections and network overloading.

• 352,968 customers have already been removed from load reduction schedules

• A broader programme aims to eliminate load reduction entirely by 2027

The initiative targets:

• 971 feeders nationwide

• Approximately 1.69 million customers, out of Eskom's total base of 7.2 million

Remaining customers scheduled for relief by the end of the financial year include:

• 122,817 in Limpopo and Mpumalanga

• 76,322 in Gauteng

• 13,080 in Eastern and Western Cape

• 5,936 in KwaZulu-Natal and Free State

• 6,224 in Northern Cape and North West

A Turning Point for South Africa's Energy Sector

The latest update suggests that Eskom's long-struggling power system may be entering a more stable phase, driven by improved maintenance, operational discipline, and strategic reforms.

While challenges such as illegal connections and infrastructure strain persist, the utility's recent performance indicates a clear shift toward reliability, efficiency, and financial sustainability.

As winter demand intensifies, all eyes will be on whether Eskom can sustain this momentum—but for now, the outlook marks a cautiously optimistic turning point for South Africa's energy landscape.