A tripped transformer caused 45K customer Edmonton power outage: EPCOR

After tens of thousands of Edmontonians were left without power Monday night – some for as long as 10 hours – EPCOR confirmed more information on why Tuesday afternoon.

Officials at the supply provider said a transformer tripped at a transformer station, but they were still unsure why it happened.

The problems started around noon. 18 and affected most homes and businesses south of Anthony Henday Drive.

“Our crew was dispatched immediately. When they arrived at the transformer station, less work was needed to switch customers to another transformer,” EPCOR Laura Ehrkamp said in a statement.

“Once that work was completed, we were able to restore power to about half of the affected customers. The field staff then worked to restore power to the remaining customers.”

EPCOR’s map of power outages initially said power would be restored to all areas by 1 p.m. 9.30pm and some areas had juice at the time.

But for other areas, the recovery time was pushed back several times, with some customers reporting that their power was only turned on after 6 p.m.

EPCOR rejected a request for an interview with CTV News Edmonton, initially saying the outcome was caused by an “equipment failure” while refusing to provide further details.

Ehrkamp later said that the process of restoring power required “manual effort” and not everything could be turned on at once.

“In technical terms, this work is called ‘cold load pick up’, which means that to ensure that power is restored and stays on, crews must restore power to a small number of customers at a time and allow the power system to adapt to higher power consumption,” he explained. she.


Crystal Cote lost power at his home in southern Edmonton around 6 p.m.

After checking the switches, she took to Twitter and saw that there was a power outage.

“We figured it would take some time. So we lit some candles, we had a little campout,” she said.

The Cote’s power came on at about. 23:15, but their oven did not start again. She had to call in a technician who replaced the oven’s fan motor.

“According to the service technician, at the time the power went out and when our oven was going to turn on, they collapsed a bit and it confused our system. So we had to replace that,” she said.

Despite the cold and dark night, Cote said she and other residents were lucky that cold weather warnings had recently been completed and temperatures had risen to around -8 degrees.

“There would have been serious problems. We would have driven around or looked for a place to go, but then you’re worried about freezing pipes,” she said.

Cote hopes EPCOR will cover at least some of the $ 1,000 repair costs, but she has yet to hear back from the company.

Some customers thanked EPCOR for restoring power, others were frustrated with the process, and some were left with questions:

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