Eskom has again issued a warning over the supply and pricing of diesel, which it has been consuming at extreme levels in recent days to cover for its underperforming coal fleet, the energy availability factor (EAF) of which has now slumped to below 60%. The State-owned utility deployed its open cycle gas turbine (OCGT) plants well beyond the peak periods for which they are designed on Monday and Tuesday, partly to replenish the upper dams at its pumped-storage schemes.
