JOHANNESBURG – It’s bad news all round for South African’s when it comes to electricity. Following 10 months with no blackouts, Eskom issued an alert for a high risk of rolling blackouts this weekend.This comes after Thursday’s announcement that Nersa has approved a 12.7 percent tarrif hike.Eskom will hold an urgent briefing on Friday afternoon.READ: Restore the power grid | No rolling blackouts for 300 days”Over the past seven days, we have experienced several breakdowns that require extended repair times,” Eskom Group Chief Executive, Dan Marokane said in a statement.”This has…