Western Power says about 300 homes and businesses in Mullewa lost power during a storm overnight.
Services are expected to be restored by mid-morning.
Western Power crews are now bracing for a second cold front later today or into the evening.
If anyone sees fallen powerlines, they are urged to contact Western Power.
© ABC 2013
21:01 EST South Australian farmers have held an emergency meeting in the state's Mid North to deal with the fallout from unseasonal frost, a problem most have never had to face before.