There is no single electricity price for Perth because your bill depends on the retailer, tariff, daily supply charge, usage in kilowatt-hours and any solar export credits or concessions. Most Perth households are supplied under regulated residential tariffs through Synergy, while Horizon Power generally supplies regional areas. Prices and tariff rules can change, so check the latest Synergy pricing information and Western Australian Government guidance rather than relying on an older comparison. Your retailer can also explain which tariff applies to your property and how your meter readings affect the bill.