Electricity consumers in Western Australia fall into two general categories: contestable and non-contestable customers. Contestable customers have a choice of electricity retailer, while non-contestable customers do not.
Non-contestable customers are customers within the South West Interconnected System consuming less than or equal to 50 megawatt hours of electricity a year (an average of 137 units per day).
These customers are supplied by Synergy and pay electricity prices regulated by the Western Australian Government as determined under electricity by-laws.
Residential households and small businesses usually fall within this category.
Contestable customers are comsomers within the South West Interconnected System consuming more than 50 megawatt hours of electricity a year (an average of 137 units per day). These include
All customers outside of the South West Interconnected System are contestable and can choose their retailer. Customers should be aware that, at present, Horizon Power is the only retailer in many regional areas.
These customers can negotiate the rates they pay with their chosen retailer.
Customers consuming between 50 and 160 megawatt hours per year can choose to either pay the relevant capped rates offered by Synergy or be supplied by Synergy or another retailer at negotiated tariff rates.
Economic Regulation Authority [external website] - provides detailed information about choosing a retailer and entering into a contract with a retailer
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