TSHWANE - Power has now been fully restored to residents in Pretoria East and Centurion.
Two substation fires had left thousands of people without electricity in the past week.
The first fire broke out at the Olievenhoutbosch substation on Christmas Eve.
Another blaze followed two days later at the Koedoespoort substation.
Authorities say vandalism and cable theft caused the outages.
City crews worked around the clock, and electricity is now back in all affected homes and businesses.