Eskom warned on Tuesday that Stage 2 load-shedding might be implemented at short notice between 16:00 and 24:00 over the next three days. This is due to a delay in returning a generation unit to service each at Arnot, Kusile and the Koeberg power stations, as well as the failure of a generation unit each at Medupi, Hendrina, Camden, and two units at Majuba.