As Yukon continues to deal with a prolonged spell of extreme cold, emergency officials are advising people to be prepared in case of a power outage.

On Tuesday, the territory’s energy minister issued a statement saying the territory’s power grid was under “significant strain,” and suggested the potential for rolling blackouts in Whitehorse if the system were to buckle under that strain.

Minister Ted Laking said that the territory reached an all-time record peak demand of 123 megawatts on Monday. He said the territory’s grid can produce about 140 megawatts, “in ideal conditions.”