More than 26,000 homes and businesses were left without electricity on Friday, some of them for more than 16 hours, when a fault at a substation cut supply to the Yorke Peninsula and parts of the Mid North. More than 26,000 homes and businesses were left without electricity on Friday, some of them for more than 16 hours, when a fault at a substation cut supply to the Yorke Peninsula and parts of the Mid North. Electricity Production and Distribution, Weather Latest business news