The ERA is responsible for regulating third party access to covered electricity networks in Western Australia.
There are two access regimes that may apply:
- Full access regulation under the Electricity Networks Access Code 2004 – The Western Power Network is the only network covered under this Code.
- Light handed regulation under the Pilbara Networks Access Code – The ERA is required to approve ringfencing rules and the initial WACC for the Alinta Energy Port Hedland network and the Horizon Power coastal network.
In addition, under the Electricity Industry (Metering) Code 2012 some network service providers are required to have certain documents approved by the ERA.