By: Bright Ntuli
Power utility Eskom has announced the successful return to service of Unit 4 at the Medupi Power Station in Limpopo, achieving the milestone eight months ahead of schedule.
The unit had been offline since 8 August 2021, following a devastating explosion that severely damaged its generator stator, a critical component in the unit’s electricity generation process.
According to Eskom spokesperson Daphne Mokwena, Unit 4 is now contributing 800 megawatts to the national grid. This comes as a significant boost to the country’s power supply and forms part of Eskom’s broader strategy to add 2,500 megawatts of generation capacity in the coming months.
“The return of Unit 4 is a major milestone in our efforts to stabilise electricity supply and reduce the severity of load shedding,” said Mokwena.
The repair and recovery of the unit involved extensive technical work and collaboration between Eskom engineers and international experts. Originally expected to be completed in 2026, the early restoration is being hailed as a rare success in the utility’s ongoing turnaround plan.
Medupi, one of South Africa’s newest coal-fired power stations, has faced several operational challenges since its commissioning. These include design flaws and mechanical failures. However, the early return of Unit 4 signals renewed momentum in efforts to restore reliability to the country’s energy infrastructure.
Energy analysts say that while the return of the unit will not eliminate load shedding entirely, it is a positive step toward reducing its frequency and severity.



