Eskom will be implemented at Stage 4 throughout Thursday and Friday, with only a possibility of lower stages from Saturday morning, Eskom said on Wednesday.  “Eskom teams are working around the clock to return units to service, but in view of the shortage of generation capacity and the need to carry out unplanned maintenance to return units to service, we unfortunately have to implement load shedding as a last resort,” Eskom spokesperson Sikonathi Mantshantsha said in a statement.