Power is restored to thousands in Edwardsville area, but outage’s cause remains a mystery

UPDATE 5/28/24: This article has been updated to show the mass power outage has ended.

Power has been restored to more than 7,800 Ameren customers who lost service Tuesday in the Edwardsville area.

The cause of the outage has not been determined, according to Ameren spokesman Brian Bretsch.

By 5:10 p.m., the number of outages had dropped to 6 in the Edwardsville area. Bretsch said these outages were not related to the outage that hit the Edwardsville area Tuesday at about 12:20 p.m.

Bretsch said Ameren crews inspected an Edwardsville power line that had “a malfunction” and then the substations connected to the power line.

“Once each substation was safely inspected, that section of the power was isolated and energized to begin restoring power to customers in the area,” he said in a statement. “The final substation inspection was completed and power for all customers was restored at 3:40 p.m.”

Bretsch said because there was a malfunction, power was cut off to the power line “to keep the general public safe.” While the power line had not been knocked to the ground, this possibility is one of the reasons why power is cut from a power line, he said.

The system did what it “is designed to do,” he said.

Along with customers in Edwardsville, residents in South Roxana, Roxana and Glen Carbon also lost power.