Seen here on April 23, 2018, a home at 99 Russell Farm Road was totally destroyed by a fire on Sunday afternoon. Two people were found dead at the site, while two others were hospitalized.

A Bar Harbor family is suing Emera Maine, alleging that the electrical utility’s negligence contributed to a fire that killed an elderly mother and her adult son and destroyed their farmhouse last year.

Dale Harding of Bar Harbor filed a lawsuit in Hancock County Superior Court in Ellsworth on Wednesday seeking unspecified damages against the utility in connection with the deaths of Erlene Harding, 79, and her 57-year-old son, Leroy Harding, on April 22, 2018.

The lawsuit claims that the fire at the Harding home at 99 Russell Farm Road was “the direct result of incorrect wiring by Emera’s agents or employees on three transformers in Emera’s transmission and distribution system on MDI.”

Emera spokeswoman Judy Long released a brief statement on Thursday expressing sadness for “the tragic fire in Bar Harbor last year.”

“Emera Maine’s focus is always the safety of our customers and reliability of the electrical system, and we made ourselves available to support the State Fire Marshal’s Office investigation,” Long said.

[Subscribe to our free morning newsletter and get the latest headlines in your inbox]

The cause of the fire was still undetermined after that investigation. Emera claimed the surge was an “Act of God” caused by a tree falling on a utility line, according to the 21-page lawsuit filed by Dale Harding on behalf of the family estate.

However, attorney Jim O’Connell of Lewiston, who represents the Harding family, said that several experts who examined the fire are prepared to testify that faulty wiring and other Emera employee errors caused the fire.

“We have numerous experts that are investigating this. There is a lot that has been learned since this happened and there is a lot still to be learned,” O’Connell said. “We have been told by our experts that should not have happened and would not have happened but for the negligence on the part of Emera.”

In the months leading up to April 2018, the area around the Hardings’ home experienced “an unusually large number of power outages, including planned outages for Emera to perform work on its transmission and distribution system,” according to the lawsuit.

One surge in early April was “so large it caused the electrical meters on the outside of several different homes in [the area] to be ripped off” and thrown a considerable distance, according to the lawsuit.

[Cause of deadly Bar Harbor fire remains undetermined]

One surge followed a planned power outage that affected 370 customers, including 15 in the Russell Farm Road area, according to the lawsuit. Emera compensated its customers for the damage done to the 15 homes, including burned wiring and appliances, furnaces, refrigerators and heat pumps, according to the lawsuit.

The power to the Harding home went out during the night before the fire, which was reported at about 8 a.m. Percy Harding, who has since died of cancer, heard “a loud ‘pop’ or ‘boom’ sound” shortly before discovering the fire, according to the lawsuit.

“Moments before hearing this sound, Percy Harding had noticed the power come back on in the house,” according to the lawsuit.

Percy, who was Erlene’s husband, and their son, Raymond Harding, escaped the fire.

Emera has 20 days to answer the filing. No hearing dates have been set, O’Connell said.