A lawsuit filed on behalf of five Lahaina residents is focusing on a particular player in the Maui wildfire disaster that the lawsuit alleges played a substantial role in last week’s devastating fire: a local power company.

The suit says Hawaiian Electric Industries should be held accountable for “negligence, trespass, and nuisance.” The utility company was “a substantial factor” in the deadliest U.S. wildfire in over a century that left 99 people dead, historic and cultural sites in ashes and thousands of people without homes. 

Hawaiian Electric Industries is the largest supplier of electricity in Hawaii. San Diego- and Wailuku-based law firm Singleton Schreiber filed the lawsuit on Monday.

“Everything we’ve seen indicates the power lines started the fire,” said Singleton Schreiber Managing Partner Gerald Singleton.

The lawsuit alleges that Hawaiian Electric “acted with a conscious indifference to the probable and foreseeable consequences” that led to the fires that burned over 11,000 acres on Aug. 9, and that no “public power shutoff plan” went into effect to shut down power in vulnerable areas, the lawsuit said. 

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The lawsuit said Hawaiian Electric had enough time and expertise to de-energize their power lines, especially since the company’s “aging utility infrastructure” includes wooden poles and exposed power lines. The complaint also states that the company has a history of improperly maintaining the dry vegetation around their power lines and inspecting their equipment. 

Local officials had been warned about the extreme fire risk leading up to Hurricane Dora passing south of the state. On Aug. 6, a “fire weather watch” was issued by the National Weather Service for the state. The next day, “a red flag warning” was issued for dry areas as “strong and gusty easterly winds” were expected, a recipe for rapidly spreading wildfires. 

The law firm is awaiting the utility company to respond, Singleton said. According to Hawaiian Electric’s policy, the company doesn’t comment on pending litigation. Since the company provides 95% of power to the state, the company said it is currently focused on supporting emergency response efforts and restoring any lost electricity.