4 months after a large fireplace ignited in Monterey County at one of many world’s largest lithium-ion battery storage amenities, Pacific Fuel & Electrical mentioned it intends to reactivate an adjoining battery web site by June to fulfill summer time vitality calls for.
The plan comes over the objections of county officers who requested that each amenities stay offline till the reason for the January fireplace in rural Moss Touchdown is set.
“I had hoped that PG&E would take a more transparent and collaborative approach in addressing the concerns of our surrounding communities, which are still grappling with the fallout of the largest BESS [battery energy storage system] fire in history,” Monterey County Supervisor Glenn Church wrote on Fb on Might 8.
“Restarting operations before investigations are complete and before stronger emergency protocols are in place is disappointing and deeply troubling,” he mentioned.
The PG&E facility is certainly one of two battery vitality storage programs on the Moss Touchdown energy advanced close to Monterey Bay. The opposite is owned by Texas-based Vistra Corp. The batteries retailer extra vitality generated throughout the day and launch it into the facility grid throughout occasions of excessive demand, together with night hours.
Each amenities have been offline since Jan. 16, when a Vistra-owned constructing containing 99,000 LG battery modules caught fireplace, spewing poisonous gases into the air and prompting the evacuation of some 1,500 folks.
The adjoining Elkhorn Battery Power Storage Facility — which is owned by PG&E and maintained by each the utility firm and Tesla — didn’t burn. However it robotically shut down when its security gear detected the fireplace within the Vistra constructing.
The Elkhorn vitality storage facility consists of 256 stationary Tesla Megapacks — primarily transport container-sized models stuffed with battery modules. The Megapacks, in response to PG&E, stand on 33 concrete slaps on the Elkhorn facility.
Writer John Steinbeck’s sardine boat, the Western Flyer, docked within the Moss Touchdown harbor in 2023. The previous smokestacks from an influence plant close to the harbor could be seen within the background. The facility plant advanced now consists of battery vitality storage amenities.
(Brian van der Brug / Los Angeles Instances)
In a Might 7 letter to Chris Lopez, chairman of the Monterey County Board of Supervisors, PG&E vice presidents Dave Gabbard and Teresa Alvarado mentioned “Tesla and PG&E have performed extensive inspection and clean-up” on the Elkhorn Facility and intend to restart it by June 1.
After the fireplace, every of the Megapacks was disassembled and vacuum-cleaned, and environmental monitoring was carried out on and across the web site, Gabbard and Alvarado wrote.
“The Elkhorn Facility, as constructed, allows for efficient storage and use of power,” they wrote. “As summer approaches, that power is necessary to effectively manage the demands of the California power grid and to protect PG&E’s customers from power limitations and related impacts.”
A PG&E assertion supplied to The Instances mentioned: “We understand that the safety and well-being of our community is of utmost importance.” The battery facility, the assertion reads, supplies “cost savings for electric customers” and helps “support the state’s decarbonization goals.”
In his Might 8 Fb submit, Church, whose district consists of Moss Touchdown, wrote that the Board of Supervisors on Jan. 22 despatched a letter to PG&E and Vistra requesting that their amenities not return to operation till “the cause of the Vistra fire, as well as a previous fire at the PG&E battery storage facility, are determined and appropriately addressed.”
That letter, he wrote, additionally requested that each firms develop “robust emergency response plans — based on a ‘catastrophic worst-case scenario’ involving full facility conflagration” for the county and different related companies to evaluate.
Though emergency response plans are required by regulation, he added, current state requirements “are limited in scope and do not provide the level of detail or realism” that county officers wanted to make sure public security.
“In previous discussions, PG&E indicated that a return to service would not occur until much later this year or beyond,” Church wrote.
County officers have “expressed concern” in regards to the return to service and have reached out to facility operators to make sure emergency plans “adequately provide for the safety of the surrounding communities and the environment,” Nick Pasculli, a Monterey County spokesman, mentioned in a press release supplied Thursday.
“At this time, however, the County feels it is prudent to encourage PG&E to delay reactivation and continue to engage in additional open, transparent dialogue with County officials, first responders, and the residents we collectively serve,” the assertion reads.
Based on a Vistra web site detailing the aftermath of the fireplace, an inside investigation is ongoing, and the reason for the blaze “remains unknown.”
A California Public Utilities Fee investigation into the blaze is also ongoing, Terrie Prosper, a spokesperson for the regulatory company, informed The Instances.
Vistra’s battery vitality storage system stands on the previous web site of the Moss Touchdown Energy Plant, a gas-powered facility — initially constructed and operated by PG&E — whose twin smokestacks have towered over the area since 1950. Vistra acquired the plant in 2018 and demolished it to make means for the battery amenities, leaving the long-lasting smokestacks behind.
In a February assertion, PG&E famous that the Vistra amenities are “located adjacent to — but walled off and separate from — PG&E’s Moss Landing electric substation.”
In September 2022, a hearth ignited in a single Tesla Megapack at PG&E’s Elkhorn facility, 5 months after the battery vitality storage system got here on-line. The blaze, monitored by first responders, was allowed to burn itself out and had seen flames for about six hours, in response to an investigation report by Power Security Response Group, an impartial consulting agency.
PG&E, in its letter this month to the county, mentioned the reason for that fireside was water that had entered the Megapack “due to the improper installation of deflagration vent shield panels.” Tesla made fixes to all 256 Megapacks after the blaze, the utility firm wrote.
Ivano Aiello, chair of the San José State College Moss Touchdown Marine Laboratories, conducts soil sampling on the Elkhorn Slough Reserve in January. A battery energy system on the Moss Touchdown Energy Plant, seen within the background, caught fireplace days earlier.
(San José State College’s Moss Touchdown Marine Laboratories)
The longer, extra harmful Vistra fireplace this 12 months forged a pall over the clear vitality trade in California, which lately has grow to be extra reliant upon renewable vitality, electrical automobiles and different battery-powered gadgets as state officers push to dramatically cut back planet-warming greenhouse gasoline emissions.
The Vistra blaze prompted calls for extra security laws round battery storage, in addition to extra native management over the place storage websites are positioned.
Firefighters allowed the Vistra blaze to burn itself out, citing the risks of dousing lithium-ion battery fires with water, which may trigger harmful chemical reactions. The fireplace, contained to a single constructing, smoldered for a number of days in mid-January.
In late January, scientists at San José State College recorded a dramatic enhance in nickel, manganese and cobalt — supplies utilized in lithium-ion batteries — in soil samples on the Elkhorn Slough Reserve, a close-by estuary that’s dwelling to a number of endangered species.
The broken Vistra constructing — stuffed with each burned and unaffected lithium-ion batteries — remained unstable. On Feb. 18, the fireplace reignited and burned for a number of hours. Vistra wrote on its web site that “additional instances of smoke and flare-ups are a possibility given the nature of this situation and the damage to the batteries.”
“Since the January 16 fire, Vistra has brought in a private professional fire brigade that is onsite 24/7 to monitor the Moss 300 building,” the corporate wrote.
“Demolition on the Moss 300 building will begin once all batteries have been safely removed and discharged, and all debris (concrete, steel, piping) has been removed from the site,” Cohn wrote.
In February, 4 residents who stay close to the ability sued Vistra, PG&E and LG Power Resolution, accusing the businesses of failing to keep up ample fireplace security programs.
They alleged that they have been uncovered to poisonous smoke emissions that induced nosebleeds, complications, respiratory issues and different well being points. Environmental advocate Erin Brockovich is working with regulation agency Singleton Schreiber on the go well with.
Instances workers author Clara Harter contributed to this report.
