JOHANNESBURG/CAPE TOWN (Reuters) - South African President Cyril Ramaphosa said his plan to divide struggling state power firm Eskom into three units would minimize risks to the economy, as a fifth day of power cuts hurt businesses and drove the rand to a six-week low on Thursday.

FILE PHOTO: The logo of state power utility Eskom is seen outside Cape Town's Koeberg nuclear power plant in this picture taken March 20, 2016. REUTERS/Mike Hutchings/File Photo

Eskom, which supplies more than 90 percent of the power in Africa’s most industrialized economy, is technically insolvent, the government said on Wednesday, warning that an urgent bailout was needed to help it manage its $30 billion debt.

“Restructuring will reduce the risk of a massive Eskom that at times has been termed ‘too big to fail’, placing government in a position where all our eggs are in one basket,” Ramaphosa said in a speech to parliament.

“It is not a path to privatization,” he added, promising that a financial support package for Eskom would be accompanied by a turnaround plan and that officials would consult with trade unions, which have expressed anger at the proposed split.

Last week Ramaphosa - who faces a parliamentary election in May - pledged to separate Eskom into units for generation, transmission and distribution to increase efficiency and prop up the country’s most important state company.

The former union leader is under pressure to revive an economy that stagnated under his predecessor, scandal-plagued Jacob Zuma, and the Eskom crisis will test his negotiating skills with his ex-colleagues.

Eskom cut 2,000 megawatts (MW) of electricity from the grid from 0600 GMT on Thursday, likely until 2000 GMT. That is an improvement from Monday, when it slashed 4,000 MW from the grid in its largest cut since 2014/15 because of unplanned breakdowns of some generating units, maintenance and diesel shortages.

A senior Eskom official, Andrew Etzinger, said on Thursday that Eskom’s plant performance and diesel supplies had improved substantially and that its coal stockpiles were approaching their highest in around six months.

That bodes well for next week, by which time Eskom hopes to have ended the power cuts, which are an emergency measure to prevent the electricity system from a total collapse.

Around a third of Eskom’s 45,000 MW capacity is still offline.

GRIDLOCK

The outages, the worst in several years, have spooked investors days before a budget speech by the finance minister and have prompted a sharp slide in the rand and government bonds.

The rand fell more than 1.4 percent versus the dollar to its weakest in six weeks on Thursday and is now down more than 4 percent this week.

The cuts have left ordinary South Africans struggling to feed their families and caused traffic gridlock in major cities as traffic lights stop working.

“If the power goes off for more than six hours and we have to run the generators for that long it’s going to be very expensive. We’re not going to be able to afford the diesel,” said Arno Steenkamp, a manager at a Johannesburg restaurant.

“If we can’t make coffee and food it’s going to hit our sales and we might have to close,” he added.

Firms in the mining sector, the backbone of the country’s economy, are looking at alternatives to reduce their dependence on Eskom and monitoring the situation closely.

Eskom’s woes, which reflect the failure of successive governments to take on labor unions and tackle Eskom’s monopolistic structure, pose a potential threat to South Africa’s credit rating, with Moody’s the last of the top three ratings agencies to rate it investment grade.

There is also the risk that unions could go on strike.

The National Union of Mineworkers (NUM), the biggest union at Eskom, on Thursday warned Ramaphosa’s African National Congress (ANC) not to take its members’ votes for granted at the upcoming election.

Senior NUM officials are set to hold talks with Public Enterprises Minister Pravin Gordhan on Monday to express their disagreement with the plan to split Eskom, which the union fears will lead to massive job losses further down the line.

Ramaphosa said in parliament that cost-cutting at Eskom would not necessarily entail job cuts.