Eskom announced on Friday afternoon that the Stage 4 loadshedding it implemented in the early hours of the morning will continue until further notice

"Changes in the stages of loadshedding will be more erratic due to the absence of the buffer that is normally provided by the diesel generation capacity between generating unit breakdowns," the power utility said. 

Since Friday morning a generating unit each at Kendal and Kriel power stations were taken offline for repairs. There have also been delays in returning to service a unit each at Arnot, Grootvlei, Hendrina and Tutuka power stations.

There is 4 887MW out on planned maintenance, while another 15 320MW of capacity is unavailable due to breakdowns