South Africa’s electricity utility Eskom said on Thursday it would implement rotational powercuts from 8am to 10pm  due to an increase in breakdowns of its generation units, warning that the blackouts could continue into the weekend. “The delay of the return to service of two units at Duvha and Tutuka and the breakdowns of four units at Kriel, Tutuka and Kendal have resulted in the need for load-shedding today,” it said in a statement.