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Tens of thousands of residents were without power across Tuolumne County due to an explosion near a power station, according to the sheriff’s office. No injuries have been reported.Just after 5 p.m. Friday, the PG&E outage map showed nearly 30,000 without power across the county, including 1,957 households in Sonora and 27,773 households in unincorporated areas. By 6 p.m., power had been restored to about half the affected population, with 15,420 customers without power across the county.Leer en español. By 7 p.m., power was restored for most customers in the area.The Tuolumne County Fire Department initially said its crews responded to a reported lithium-ion battery explosion at Pacific Ultrapower near Chinese Camp around 4:15 p.m. However, the sheriff’s office later said crews determined the explosion was connected with a transformer at ENGIE, a facility neighboring Ultrapower.In a news release, ENGIE said its Sierra Battery Storage facility experienced an electrical issue around 4 p.m. and some electrical circuits and equipment tripped at the facility. The company said there was no fire on-site. Steve Gross, president of Jamestown Energy, told KCRA 3 that the incident was not at their facility, but at an adjacent facility where there is an energy storage project with lithium-ion batteries. Gross said that the incident knocked out the main line, affecting Jamestown Energy’s ability to send out power.Cal Fire crews also responded this evening. A battalion chief said they are always on high alert when they hear the word “explosion.””We were told that there was black smoke and an explosion. And after investigating, we noticed that it was a transformer that had exploded. And from there we just mitigated the cause of it,” Jeffrey Cox, Cal Fire TCU battalion chief, said.Although there was no fire when they arrived, Cox said, the crews assisted in evacuating the facility to ensure everyone’s safety.The fire department said localized evacuations of the plant were conducted and all employees are accounted for. Those evacuation orders have since been lifted. The extent of the damage is unclear. The Tuolumne County Sheriff’s Office said there were no road closures or additional evacuations associated with the incident, but urged the public to avoid the area. The outage map shows the power loss was reported just before 4:30 p.m. Friday. ENGIE said its facility has been disconnected from the grid while technical experts are investigating the cause of the incident. KCRA 3 has reached out to PG&E for more information. Track PG&E power outages here. See more coverage of top California stories here | Download our app | Subscribe to our morning newsletter | Find us on YouTube here and subscribe to our channel
TUOLUMNE, Calif. —
Tens of thousands of residents were without power across Tuolumne County due to an explosion near a power station, according to the sheriff’s office. No injuries have been reported.
Just after 5 p.m. Friday, the PG&E outage map showed nearly 30,000 without power across the county, including 1,957 households in Sonora and 27,773 households in unincorporated areas. By 6 p.m., power had been restored to about half the affected population, with 15,420 customers without power across the county.
Leer en español.
By 7 p.m., power was restored for most customers in the area.
The Tuolumne County Fire Department initially said its crews responded to a reported lithium-ion battery explosion at Pacific Ultrapower near Chinese Camp around 4:15 p.m. However, the sheriff’s office later said crews determined the explosion was connected with a transformer at ENGIE, a facility neighboring Ultrapower.
In a news release, ENGIE said its Sierra Battery Storage facility experienced an electrical issue around 4 p.m. and some electrical circuits and equipment tripped at the facility. The company said there was no fire on-site.
Steve Gross, president of Jamestown Energy, told KCRA 3 that the incident was not at their facility, but at an adjacent facility where there is an energy storage project with lithium-ion batteries. Gross said that the incident knocked out the main line, affecting Jamestown Energy’s ability to send out power.
Cal Fire crews also responded this evening. A battalion chief said they are always on high alert when they hear the word “explosion.”
“We were told that there was black smoke and an explosion. And after investigating, we noticed that it was a transformer that had exploded. And from there we just mitigated the cause of it,” Jeffrey Cox, Cal Fire TCU battalion chief, said.
Although there was no fire when they arrived, Cox said, the crews assisted in evacuating the facility to ensure everyone’s safety.
The fire department said localized evacuations of the plant were conducted and all employees are accounted for. Those evacuation orders have since been lifted.
The extent of the damage is unclear.
The Tuolumne County Sheriff’s Office said there were no road closures or additional evacuations associated with the incident, but urged the public to avoid the area.
The outage map shows the power loss was reported just before 4:30 p.m. Friday.
ENGIE said its facility has been disconnected from the grid while technical experts are investigating the cause of the incident.
KCRA 3 has reached out to PG&E for more information.
See more coverage of top California stories here | Download our app | Subscribe to our morning newsletter | Find us on YouTube here and subscribe to our channel
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