Regulatory settlement sets cleanup duties after Gateway Energy Storage fire in San Diego
May 2024Published 1 May 2026Responsible editor: Chief Editor
- Where
- Gateway Energy Storage Camino facility, San Diego, California, United States
- Owner
- LS Power
- What
- Thermal event in nearly 15,000 nickel manganese cobalt lithium ion batteries
- Injuries
- None reported
- Cause
- Under investigation
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Companies named in the reporting of this entry (being named is not a finding of fault): Gateway Energy Storage, LS Power
What happened
In May 2024 a thermal event occurred at the Gateway Energy Storage Camino facility, a grid scale lithium ion battery storage site in San Diego, California, United States, involving nearly 15,000 nickel manganese cobalt lithium ion batteries housed in a single building. The fire started in mid May and periodic flare ups continued for around two weeks. No injuries were reported. This entry complements an earlier case study on the same event and covers the regulatory aftermath rather than the technical cause.
The US Environmental Protection Agency subsequently entered into a settlement agreement with LS Power, the owner of Gateway Energy Storage, requiring the cleanup of the site to be carried out and paid for. Under the agreement the operator is to conduct environmental monitoring during all battery handling operations, remove, package and dispose of the affected battery packs, submit detailed work plans to the regulator, and provide regular progress reports. As reported, the settlement does not impose monetary penalties but establishes binding cleanup obligations.
The regulator continued to oversee the cleanup in coordination with local fire authorities and county government, and officials publicly noted broader concerns about grid scale battery fires and their effect on first responders.
Contributing factors
Public reporting indicates that the cause of the original fire remained under investigation at the time the settlement was announced. Sources noted that the extended period of flare ups is consistent with the recognised difficulty of fully suppressing thermal runaway in dense lithium ion installations.
Lessons learned
- Grid scale lithium ion battery fires can produce weeks of flare ups, so operators must plan for extended site security and monitoring after the initial event.
- Cleanup of fire damaged lithium ion cells requires environmental monitoring and specialist disposal, so contracts and protocols should be ready before any incident.
- Regulatory settlements after battery fires can impose months of reporting duties without fines, so emergency plans must allocate staff for ongoing compliance.
More lessons on theft, arson and site security, detection and monitoring, emergency response and public communication, from every incident on the register.
Not yet known
- Battery storage system model and age
- Duration and cost of the cleanup
- Impact on site operations and supply
This entry is updated when these are reported. Get an alert for the next one like it.
Source
Published 2026-05-01. Written from public reporting. Descriptive, not investigative. See the data accuracy disclaimer.
