Eskom reports that it is currently expecting to operate temporary stacks on the three Kusile units – which have been inoperable since October 23 when the Unit 1 flue duct failed in a way that also compromised the Unit 2 and 3 flue ducts – for about a year while permanent remediation works are carried out. The temporary stacks will bypass the flue-gas desulphurisation (FGD) system and Eskom is, therefore, preparing to seek an exemption from the Department of Forestry, Fisheries and the Environment (DFFE) in order to allow it to operate the units without using the air-pollution control system.
