Summerside Mayor Dan Kutcher says a planned overnight power outage that was needed to help stabilize the city's power grid went well, but its electrical system remains vulnerable.

The outage, scheduled from 1 to 6 a.m. AT, allowed Maritime Electric to connect Summerside to a mobile transformer at the Sherbrooke Substation. This temporary solution comes after a failure at the substation led to ongoing power challenges for the city over the past two weeks.

Kutcher said about half of the city lost p…