By admin 
Firefighters knocked down the flare-up at a Moss Landing battery storage facility, and no flames or smoke had been observed since Friday afternoon, plant owner Vistra Corp. said on Saturday afternoon.
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Batteries at the plant ignited on Friday morning during ongoing cleanup work in the wake of a major fire in January 2025, prompting a shelter-in-place order for nearby residents at the coastal town in Monterey County.
The fire was controlled on Friday afternoon, and Vistra, a Texas-based energy company, described it as “inactive” as of 4:30 p.m. that day.
“Conditions on site remain stable,” Vistra said in a post at a 3:30 p.m. on Saturday. ”Temperature readings in the area where the flare-up occurred have continued to decrease overnight and throughout Saturday morning.”
Vistra said fire response operations have concluded, although and fire personnel remained on site around the clock to monitor conditions.
About 2,500 battery modules remained inside the damaged Moss Landing 300 building before Friday’s fire, and Vistra said it believed about 1,200 of those ignited on Friday.
The modules had not yet been de-energized because structural damage from the January 2025 fire had prevented crews from safely accessing that portion of the building.
The company has been removing and processing intact batteries from damaged portions of the building as demolition continues to provide safe access for workers. More than 39,000 intact battery modules have already been removed, de-energized and shipped to approved facilities.
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Vistra said about 100,000 battery modules were originally in the building and an estimated 56,000 burned in the January fire. The company expects to complete removal of intact batteries from the damaged portion of the building by the end of the year.
The U.S. Environmental Protection Agency remained on site overseeing recovery operations.
Vistra said batteries will be recycled where possible, while debris will be sampled to determine appropriate disposal at EPA-approved facilities.
The latest flare-up was reported about 6 a.m. Friday along the north wall of the Moss Landing 300 building. No injuries were reported.
Air-quality monitors continued to show normal conditions in and around the site Saturday, according to Vistra. The shelter-in-place order was lifted at 4:15 p.m. on Friday.
The natural-gas plant, which was temporarily shut down as a precaution Friday morning, resumed normal operations Friday evening.
This story was originally published September 19, 2026 at 6:23 PM with the headline “Update: Moss Landing battery plant fire knocked down, company says.”
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