Monday, September 27, 2021

World’s largest battery overheats in California, shuts down

An “overheating event” at the world’s largest grid battery in California on September 4 caused three quarters of the station to be shut down until further notice.

South of San Francisco, the Moss Landing energy storage facility, the largest of its kind, recently grew from 300 to 400 megawatts (MW), with the capacity to produce up to four hours.

But after a limited number of modules reached operationally unsafe temperatures on September 4, safety mechanisms triggered sprinklers targeting the affected modules, resulting in a complete shutdown of the facility’s primary 300-MW section.

Overheating came as the state experienced a 100-degree Fahrenheit heatwave over Labor Day weekend.

Monterey County’s North County Fire Protection District was called to the scene as a precaution. There was no injury.

The newly constructed 100-MW portion of the power station, located in a separate building, remained functional.

On 7 September, Wistro, owner and battery maker LG Energy Solutions, launched an investigation into the root cause of the incident.

“The team is in the early stages of this investigation and hope to fully assess the extent of the damage before developing a plan to safely repair the battery system and return it to operation,” Wistro said in a media statement. It will take some time to do that.”

Difficulties in managing battery fires mean that large battery facilities require temperature monitoring and management.

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This was shown in Australia last month when firefighters were unable to control a fire at the country’s largest grid battery, which continued to burn for nearly four days.

Yug Times Photos
A fire broke out at the Victoria Big Battery in Murbool, near Melbourne, in Victoria, Australia, on July 30, 2021. (Fire Rescue Victoria)

Local fire officials said at the time that the nature of the fire meant it was extremely difficult to extinguish using traditional methods.

“It’s hard to fight them because you can’t pour water on the megapack…” the spokesperson said. “The recommended procedure is to cool everything around it so the fire doesn’t spread, and you let it burn.”

The 400 MW capacity of the Moss Landing Grid battery is part of the state’s efforts to meet Energy Storage Law AB 2514, passed in 2013, which requires utilities to build 1,325 MW of operational energy storage capacity by 2024.

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The state’s transition toward more renewable energy capacity had previously prompted California energy officials to demand additional power capacity for the months of July and August due to reliability concerns.

“California is using all available equipment to increase electricity reliability this summer,” officials said, “citing the unprecedented heat events that are occurring in combination with drought conditions across the West that are driving hydroelectric power.” reduce capacity.”

Daniil Khmelev


This News Originally From – The Epoch Times

World's largest battery overheats in California, shuts down
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