Power has been restored to most of the 8,000 customers who were cut off Friday morning in -17C temperatures when transformer equipment failed, Toronto Hydro has confirmed.

Power went out around 10:30 a.m. from Eglinton Ave. to Wellesley St. and from Spadina Ave. to Yonge St.

“Right now we know it was a loss of supply at a shared station we share with Hydro One,” said Christina Basil, spokesperson for Toronto Hydro.

The rest of the customers will most likely have to wait until Hydro One is able to complete repairs and get the system back online.

Hydro One distributes high voltage power to local providers such as Toronto Hydro which in turn distributes electricity to their customers.

“This morning, some of the electricity they transmit to us failed,” Toronto Hydro spokesperson Brian Buchan told the Star.

According to Nancy Shaddick, communications officer with Hydro One, the loss of supply has been traced back to equipment failure at the Bridgman transformer station.

“We are looking into what caused the transformer to fail,” Shaddick said.

Originally, Toronto Hydro had estimated that the power would return around 1 p.m. However, 8,000 customers remained without power as of 2:30 p.m.

Buchan says a lot is riding on Hydro One correcting the problem.

“We weren’t able to reroute (the power) successfully,” Buchan said. “We will continue our efforts to do that and, in the meantime, our hope is that Hydro One can bring it back online themselves.

The Royal Ontario Museum, which is inside the affected, announced that their galleries will be closed all day.