If you need to know about batteries; you’ve come to the right place
Chinese flag点击这里访问我们的中文网站Chinese flag

Vistra

LG Chem’s lithium-ion batteries at centre of latest fire at 300MW ESS

Mon, 09/13/2021 - 15:10 -- paul Crompton

Preliminary assessment of a fault that caused Vistra’s flagship 300MW/1.2GWh energy storage system (ESS) to overheat and go offline has begun in the US state of California.

Phase I of the Texas, US, firm’s Moss Landing Energy Storage facility was forced out of service following an “overheating incident” that affected a number of battery modules around 8pm on 4 September.

The system is made up of more than 4,500 stacked battery racks or cabinets, each containing 22 individual battery modules manufactured by LG Energy Solutions.

Vistra said that it was taking a conservative approach and keeping the entire facility offline as it investigates the root cause of the incident in partnership with its engineering contractor Fluence, and battery manufacturer LG Energy Solution. 

California news outlet Kion 5/46 quoted North County Fire District fire chief Joel Mendoza as saying the battery racks had been "scorched" and wires "melted."

He was reported as saying: "We didn’t see any fire when we came in. What we saw was a lot of smoke. The battery modules are actually encased in plastic. So in the event of overheating, you’re gonna see a lot of smoke."

Safety systems detected the faulty modules were operating at a temperature above operational standards and triggered sprinkler systems targeted at the affected modules. 

The operational status of the assets of Phase II (100MW), which is located in a separate stand-alone building, remains operational. Phase II was completed last month and brought the facility's total capacity to 400MW/1.6GWh— the largest of its kind in the world.

Battery fire investigation

Teams from Vistra, LG Energy Solution, Fluence, and other external experts are in the early stages of the investigation into the root cause of the issue.

The teams expect that it will take “some time” to fully assess the extent of the damage before developing a plan to safely repair and return the battery system to operation. 

The North County Fire Protection District of Monterey County is assisting with the investigation.

A statement by Vistra on 5 September read: “The Moss Landing Energy Storage Facility experienced an overheating issue with a limited number of battery modules in its Phase I 300-megawatt/1200-megawatt hour system. 

“There are multiple layers of safety integrated into the battery facility and the risk mitigation and safety systems worked as designed, detecting these modules were operating at a temperature above operational standards and triggering targeted sprinkler systems aimed at the affected modules. 

“As a result, the overheating was controlled and contained without the need for outside assistance. However, consistent with Vistra’s incident response planning and out of an abundance of caution, the Moss Landing team did ask the local fire department, North County Fire Protection District of Monterey County, to respond to the site. 

“Importantly, there were no injuries to the facilities’ workers as a result of the incident and the situation is contained to the facility with no harm to the community.”

Vistra is uncertain on the timing of the return of the facility, pending an investigation and any needed repairs. 

The company will update the status of Phase I Moss Landing as it learns more. 

LC Chem battery woes

It has been an interesting year for LG Energy Solutions, the subsidiary of the Korean battery giant LG Chem.

Earlier this month, a billion dollar recall of GM’s electric vehicles was made after a torn anode tab and a folded separator were found on cells. LG packs the cells into the modules, then into a battery pack battery at LG Energy Solution Michigan facility in Holland, Michigan, US.

In August, LG Energy Solution extended its scheme to replace lithium-ion batteries used in its home energy storage systems (ESS) to include all geographical markets.

ESSs manufactured between April 2017 and September 2018 are being recalled due to overheating concerns.

Sign-up to our FREE weekly industry newsletter, to get the weeks news delivered to your inbox every Monday.

Vistra expansion makes project the world’s biggest lithium-ion ESS

Wed, 09/01/2021 - 14:38 -- paul Crompton
Vistra lithium-ion ESS

Power generation firm Vistra has completed the second phase of its record-breaking lithium-ion energy storage systems in Monterey County, US.

The 100MW expansion of the Moss Landing Energy Storage Facility brings the facility's total capacity to 400MW/1.6GWh— the largest of its kind in the world.

The battery system is being used to bolster reliability to California's grid using technology from LG Energy Solution.

Curt Morgan, chief executive officer at Vistra said: "This facility provides a solution California desperately needs and this expansion was able to come online at the right time, as the summer heat intensifies and demand for electricity is at its highest. 

“The state's laudable immense build-out of intermittent renewable power has both lowered emissions and presented a reliability challenge. 

“Our Moss Landing battery system helps to fill the reliability gap, storing the excess daytime power so it doesn't go to waste and then releasing it to the grid when it's needed most." 

The project was announced 15 months ago, with construction started in September 2020.

Phase one of the project, a 300MW/1.2GWh system made up of more than 4,500 stacked battery racks or cabinets, was connected to the power grid and began operating on 11 December.

The site has the space to support even further expansion up to 1.5GW MW/6GWh using Vistra’s existing site infrastructure, including existing transmission lines and grid interconnection. 

The 100-MW/400-MWh Phase II expansion is operating under a 10-year resource adequacy agreement with Pacific Gas and Electric Company (PG&E). Phase I has a similar 20-year resource adequacy agreement with PG&E.

Earlier this month, Florida Power and Light's (FP&L) announced its Manatee Energy Storage Center in Manatee County, Florida was 75% complete, with 100 of its 132 battery units installed and all 132 inverters in place. 

When the Manatee site is completed and connected to the grid at the end of this year it will have capacity of 409MW/900MWh.

Sign-up to our FREE weekly industry newsletter, to get the weeks news delivered to your inbox every Monday.

Battery storage to replace retiring gas generators in Golden State

Mon, 11/19/2018 - 00:00 -- Hugh Finzel

The California Public Utilities Commission (CPUC) has granted approval for four energy storage projects— totalling 567.5MW/2,270MWh— which the Pacific Gas & Electric (PG&E) utility will use to replace retiring gas generators.

The four lithium-ion battery projects include a 300MW/1,200MWh system— billed as “the largest system of its kind in the world— to be provided by Vistra Energy and located on the site of the Moss Landing Power Plant, and a 182.5MW/730MWh system— which shall become the world’s second largest— to be provided by Tesla.

Sign-up to our FREE weekly industry newsletter, to get the weeks news delivered to your inbox every Monday.

EDF Renewables signs California solar-storage deals

Mon, 11/19/2018 - 00:00 -- Hugh Finzel

The North American arm of EDF Renewables has signed two 20-year solar-plus-storage deals in California.

The company said the agreements are for its Big Beau Solar+Storage (BBSS) Project in Kern County.

The agreements have been signed with Silicon Valley Clean Energy, which will purchase 55% of the systems output, and Monterey Bay Community Power, which will purchase the remaining 45%.

Sign-up to our FREE weekly industry newsletter, to get the weeks news delivered to your inbox every Monday.
Subscribe to Vistra