California’s largest battery storage shut down by smoke, again

California's biggest - battery storage - Bloomberg
Part of California’s biggest battery storage system was forced to shut down again after a component malfunction caused the building to smoke up. — Bloomberg

Vistra Corp. was once again forced to shut down part of California’s biggest battery storage system after some components malfunctioned.

The company took offline its 100-megawatt Moss Landing battery facility after a safety system activated late on Sunday, according to a statement. It’s the second incident at the plant in less than six months.

In September, Vistra closed the plant’s 300-megawatt facility after some battery modules overheated. An investigation found that smoke from a failed bearing in an air-handling unit in the building triggered a heat suppression system to improperly spray water on battery racks, causing damage and some to overheat, according to a statement from Vistra last month.

Early findings from the most recent incident indicate that water hoses leaked and some batteries shorted, causing smoke in the building, similar to what was observed with the prior issue, Vistra said.

Vistra said it will now pause bringing its 300-megawatt facility back online because of the latest issues at the plant, located nearly 100miles (161kilometres) south of San Francisco.

Last month, Vistra announced plans to nearly double the capacity of its Moss Landing energy storage site by adding 350 megawatts in an agreement with PG&E Corp. The expansion is expected to be completed by June 2023. – Bloomberg


About Stu Turley 2288 Articles
Stuart Turley is President and CEO of Sandstone Group, a top energy data, and finance consultancy working with companies all throughout the energy value chain. Sandstone helps both small and large-cap energy companies to develop customized applications and manage data workflows/integration throughout the entire business. With experience in implementing enterprise networks, supercomputers, and cellular tower solutions, Sandstone has become a trusted source and advisor in this space. Stuart has led the “Total Corporate Digital Integration” platform at Sandstone and works with Sandstone clients to help integrate all aspects of modern digital business. He is also the Executive Publisher of, the best source for 24/7 energy news coverage and is the Co-Host of the energy news video and Podcast Energy News Beat. Stuart is on Board Member of ASN Productions, DI Communities Stuart is guided by over 30 years of business management experience, having successfully built and help sell multiple small and medium businesses while consulting for numerous Fortune 500 companies. He holds a B.A in Business Administration from Oklahoma State and an MBA from Oklahoma City University.