The Economic Regulation Authority ( ERA ) is responsible for reviewing and approving the access arrangement for the Western Power Network, an electricity network in the south-west of Western Australia. The access arrangement includes terms and conditions including prices for services typically sought by third parties seeking access to the network.

The current 2009-2012 approved access arrangement (AA2) continues in effect until a revised access arrangement is approved. Western Power submitted proposed revisions to its access arrangement to the ERA on 30 September 2011. Western Power has proposed that this period will operate between 1 July 2012 and 30 June 2017 (AA3).

Date Timeline
30-Sep-11 Western Power submitted proposed revised access arrangement to the ERA
07-Oct-11 ERA publishes Western Power's proposal and invites submissions from interested parties
07-Nov-11 ERA releases an issues paper
14-Nov-11 Public forum
05-Dec-11 Public consultation period closes
March 2012 Release of the ERA's draft decision and an invitation for further public consultation
2012 Public consultation period for submissions on the draft decision closes
2012 Release of ERA's final decision