A months-long investigation into the Boyle Heights warehouse fire determined the origin was an electrical event on the roof near solar panels, but investigators could not pinpoint the exact ignition source.

Lineage and its contractors allege that re-energization and reconfiguration of the solar array around mid-2025 introduced safety concerns that may have raised ignition risks.

The aftermath left decades of health concerns, months of smoke, and the removal of 89 million pounds of spoiled meat and debris, with residents continuing to face disruption and pollution worries.

A separate 2024 fire at the site was attributed to equipment or heat-source failure, while the 2025–26 incident involved extensive testing, rapid shutdown devices, and intricate connectors.

City officials and a Boyle Heights councilmember criticized the inconclusive findings and called for accountability and safer practices to avert future disasters.

Lineage and its contractors maintain the fire was caused by solar panels or related equipment, a claim echoed in a lawsuit against Altus Power and Pearce Services.

LA Fire Department officials cautioned that the investigation could not rule out the solar installation, its components, or ongoing work as potential causes.

The fire originated in the Grid 2 section of a 12,400-panel array; while solar involvement is possible, the initiating source remains unknown.