Safety concerns over solar panels were raised a year before massive Boyle Heights fire
Fri, July 10, 2026 at 12:34 PM
A year before a massive fire at a Boyle Heights cold storage building sent polluted smoke into surrounding communities, the operator of the facility came to Los Angeles City Hall with a request.
Lineage asked about removing an emergency shutdown switch from the solar panels on the roof of the structure, according to the Los Angeles Department of Building and Safety.
A spokesperson for Lineage said that the company was inquiring about what it described as a safer alternative to rapid shutdown devices. Though intended to protect firefighters from shock, some shutdown devices have also been linkedto increased fire risk.
Ultimately, the company did not receive any variances or exemptions as a result of its efforts, the spokesperson said.
Neither Lineage nor the city would provide any details about what kind of shutdown system was in place at the time of the fire. Altus Power, which owns the solar panels, declined to specify, citing the ongoing investigation into the fire.
But the solar panels have become a focus of the fire. According to Lineage, company officials believe the fire began while third-party subcontractors were testing the rooftop solar array at the nearly 500,000-square-foot warehouse.
The Los Angeles Fire Department has not announced a cause for the blaze.
The state code requires that rooftop solar arrays have rapid shutdown systems that quickly reduce the voltage to a level that makes it safe for first responders to access a roof in an emergency.
The systems are typically activated by a switch, which communicates with rapid shutdown devices to reduce the voltage to the panels, said Ryan Mayfield, chief engineer and founder of Mayfield Renewables, which specializes in solar energy.
While rapid shutdown devices are intended to protect firefighters,a recent white paper raised concerns that they may actually increase the risk of fires starting. The report by technical advisory firm HelioVolta found the devices were the most likely cause of 71% of fires and thermal damage events it had identified in rooftop solar systems. The technology typically involves installing devices underneath each solar panel, and each device and its connections pose a risk of failure, which could spark a fire, the report found.
The solution to reducing the fire risk is to use a different kind of technology, called micro inverters, which convert the electricity to the same form that powers homes, said Capt. Richard Birt, who retired from Las Vegas Fire and Rescue and now trains firefighters on how to deal with solar panels.
Lineage's request to the city came after an earlier fire that started among the rooftop solar panels in 2024. The Los Angeles Fire Department declined to disclose the cause of the fire and said records requested by The Times on the matter were part of an open investigation of the property and could not be immediately released.
The building's solar array had a shutdown switch that firefighters flipped when the most recent blaze began, according to the fire department. Still, officials said the panels remained energized for several days and cited the array as one of several challenges they faced while attempting to bring the fire under control.
Lineage, which leases the space, has said repeatedly that it does not own, operate or maintain the solar panels. Nevertheless, the company relied on its lobbying firm, Veritas Public Affairs, to communicate with several city agencies about those panels, records submitted to the city's Ethics Commission show….
https://www.yahoo.com/news/us/articles/safety-concerns-over-solar-panels-163451144.html