Johannesburg - Although Eskom does not explicitly state how huge its power generation surplus margin is, it has already switched off 14 units of its older coal power stations over weekends.
This emerged from a further study into the state utility’s recent annual report, released last month.
Eskom's interim chief executive Johnny Dladla says that because of the added capacity of Eskom’s new power generation capacity from its new coal power stations Medupi and Kusile, as well as its Ingula pumped storage scheme, Eskom now has so much excessive surplus that it could increase the export of its electricity with up to 8% in the next five years.