This will reduce the need for controlled power outages, a spokesman for state-run electricity utility Eskom said on Thursday.
"We are using mobile feeders to deliver the coal to the units at Majuba. They are basically temporary conveyer belts," spokesman Khulu Phasiwe said.
(READ MORE: South Africa's NUM union warns Eskom to allow strikes)
A silo at Majuba collapsed last year, triggering a wave of rolling blackouts that disrupted business and annoyed the man on the street in Africa's most advanced economy.