The Department of Environmental Affairs recently gave permission for Eskom to operate three of Kusile's generation units without a flue-gas desulfurisation unit. With the predictions of high stages of loadshedding throughout the winter months, most of us surely feel that Kusile should be up and running - we can worry about clean air later. One understands the necessity of electricity supply and protection of the economy and jobs, but we must not think that it is without cost.