Sunday was the fourth day since Venezuela’s power system went down, plunging most of the country, including Caracas, the capital, into sporadic darkness and dampening hopes of imminent resolution to a devastating blackout that has brought the country to the verge of social implosion, The New York Times reports.
The blackout is the latest crisis to befall a country in seemingly perpetual crisis, the Times adds. Venezuela has been devastated for years by hyperinflation and a failing economy that has led millions to flee. But the country has been further torn since January, when opposition political leaders refused to acknowledge as legitimate the re-election of President Nicolas Maduro.
On Thursday, the San Geronimo B substation in the center of the country, which supplies electricity to four out of five Venezuelans from the massive Guri hydropower plant, went down.
No date has been set to restart the plant and most workers were told to stay home on Monday, said two of the substation’s workers and a manager at the national power monopoly, Corpoelec. Their names have been withheld to protect them from government reprisals, the Times writes.
The nearby San Geronimo A backup substation, which transmits much weaker current from the smaller Matagua hydropower plant, operated intermittently on Sunday. Supplies from Matagua and few unreliable thermoelectric plants allowed the government to send sporadic power to Caracas throughout the day.
The government said the blackout was caused by an unspecified fault at Guri, which provides 80 percent of the country’s electricity. President Maduro and his ministers have insisted the blackout was the result of sabotage and cyberattacks organized by the United States and the opposition, without providing any evidence.
Energy experts, Venezuelan power sector contractors and current and former Corpoelec employees have dismissed accusations of sabotage, saying the blackout was the result of years of underinvestment, corruption and brain drain.
The San Geronimo B substation connects eight out of ten of Venezuela’s largest cities to the Guri hydropower plant via one of the longest high-voltage lines in the world.
When visited on Sunday, the substation’s usual buzz of high-voltage cross currents was replaced by total silence. A cow roamed amid the transformers. Several National Guard soldiers and a unit of police commandos were at the substation, but no employees were there.
The substation is vital “to supply the country in a stable way,” said Luis Aguilar, a Venezuelan power industry expert based in Chicago. Its paralysis means power is unlikely to be restored nationally until Tuesday, at the earliest, he said.
What caused the blackout has been a source of speculation. A Corpoelec union leader, Ali Briceño, told reporters on Friday that a brush fire under a power trunk line destabilized the grid and caused Guri’s turbines to shut down. The government has struggled to restart the turbines since, he said.
Other experts, including Aguilar, said the magnitude of the blackout indicated the problem was caused by a major failure inside Guri’s turbines. A Corpoelec supervisor involved in dispatching Guri’s power said he was told by the plant’s managers on Thursday that the plant’s equipment was damaged.
After analyzing power levels across the country, Aguilar, who consults reinsurance companies on Venezuela’s power sector, said the government has tried to restart Guri four times since the start of the blackout on Thursday. The latest attempt led to the explosion of a secondary substation near Guri on Saturday.
“Every time they attempt to restart, they fail and the disruption breaks something else in the system, destabilizing the grid yet further,” said Aguilar. “Obviously, they are hiding something from us,” he said of the government.
Restarting the turbines requires skilled operators who can synchronize the speed of rotation on as many as nine of Guri’s operational turbines. Experts said the most experienced operators have long left the company because of meager wages and an atmosphere of paranoia fed by Maduro’s ever-present secret police, the Times noted.