JOHANNESBURG (Reuters) - South African power utility Eskom has funds to pay for diesel to run its turbines until the end of March, averting a crisis that could have seen it lose 5 percent of its capacity, a government source said. Eskom is currently battling to keep demand from overwhelming its capacity to keep the lights burning. Some of the utility's power turbines use diesel. "Eskom will move its own funds around to pay for the diesel," the government source, who declined to be named, told Reuters on Tuesday.