JOHANNESBURG - Public Enterprises Minister, Pravin Gordhan, says design failures in the construction of the country's coal power stations, are coming back to bite it.
Seven generating units have gone offline, forcing Eskom to start load-shedding again.
On Monday, in an unprecedented move, the utility began stage four power cuts.
INFORGRAPHIC: Load-shedding explained
But Gordhan says there is light at the end of this tunnel.