Edison neglected aging lines.

The public faces the fallout

- MELODY PETERSEN

Southern California Edison did not spend hundreds of millions of dollars on maintenance of its aging transmission lines that it told regulators was necessary and began billing to customers in the four years before the Jan. 7 wildfires, according to a Times review of regulatory filings.

Edison told state regulators in its 2023 wildfire prevention plan that it believed its giant, high-voltage transmission lines, which carry bulk power across its territory, “generally have a lower risk of ignition” than its smaller distribution wires, which deliver power to neighborhoods.

While it spent heavily in recent years to reduce the risk that its smaller lines would ignite fires, Edison fell behind on work and inspections it told regulators it planned on its transmission system, where some structures were a century old, according to a review of documents.

Edison's transmission lines are now suspected of igniting two wildfires in Los Angeles County on the night of Jan. 7, including the devastating Eaton fire, which killed 19 people and destroyed more than 9,000 homes and other structures in Altadena.

Twenty miles away, in the San Fernando Valley, terrified Sylmar residents watched a fire that night burning under the same transmission tower where the deadly Saddleridge fire ignited six years before. Firefighters put out that Jan. 7 blaze, known as the Hurst fire, before it destroyed homes.

After the fires, Edison changed course, and began spending more on its transmission lines, according to executives’ recent comments and state regulatory documents.