Posted on July 8: Early morning power outage

Power was lost in about 20 buildings on campus early this morning, after a transformer compartment in the Ivor Wynne Centre substation exploded.

At 3 a.m. Tuesday, two subsequent explosions to one of two transformers in the substation caused a power outage to the entire east and north side of campus. All power was transferred to the other transformer and power was restored to all buildings. Buildings
affected by the power outage included east campus residences, the Life
Sciences Building, Mills Memorial Library and McMaster University Student Centre.

The damaged transformer was removed from the building and the cause of the two explosions is being investigated.