Stage 4 loadshedding will continue to be implemented until 05:00 on Saturday, Eskom has said. Thereafter, various stages of loadshedding will be implemented until 05:00 on Monday.

Breakdowns have reduced to 16 686MW of generating capacity while the generating capacity out of service for planned maintenance is 3 966MW.

Over the past 24 hours, a generating unit at Camden, Duvha and two generating units at Kendal power stations were returned to service. But in the same period, a generating unit at Medupi and two generating units at Kriel power stations were taken offline for repairs.

"The delay in returning to service a generating unit at Kendal, Majuba and two generating units at Tutuka power stations is contributing to the current capacity constraints," Eskom said.