President Cyril Ramaphosa has called on the country to be patient with the electricity blackouts, saying one of the pylons in Mozambique that supply Eskom with electricity, is about to go back online.
Cyclone Idai smashed into the coast of central Mozambique last Friday, unleashing hurricane-force winds and rains that flooded the hinterland and drenched eastern Zimbabwe.
The United Nations says dire conditions in vast areas of southern Africa in the aftermath of Cyclone Idai as heavy rains continue to cause massive destruction in the region.
A cyclone that ravaged three southern African countries last week has killed at least 350 people, affected more than 1.7 million others and left 15,000 people still stranded by floods, according to estimates Thursday.
The death toll after a powerful cyclone in Mozambique stood at 217 and around 15,000people still needed to be rescued, the Minister of Land and Environment Celso Correia said on Thursday.