The department of mineral resources and energy (DMRE) has rejected Eskom's application for a diesel wholesale licence.
Eskom applied for the licence to import its own fuel so that it could buy diesel at the basic fuel price – instead of the wholesale price. This would reduce the price from about R23 per litre to around R16, according to outgoing CEO André de Ruyter.
The licence would have saved Eskom around R3 billion on fuel costs over the past year or so.
Eskom currently relies mainly on PetroSA for diesel to supply its open-cycle gas turbines, which often play a critical role in buffering South Africa from more adverse stages of load shedding.