On 28 April 2004, the ACCC approved the release of its draft revenue cap decision for EnergyAustralia.

On 18 June 2004, the ACCC held a public forum so that interested parties could state their views on the draft revenue cap decision for EnergyAustralia.

The ACCC invited submissions from interested parties on its draft revenue cap decision for EnergyAustralia.

On 29 October 2004, EnergyAustralia resubmitted its transmission revenue cap application in response to the ACCC's proposed regulatory framework. The revised application relates only to transmission capital expenditure from 1 July 2004 to 30 June 2009.

The ACCC engaged PB Associates to provide expert advice to assist the ACCC to set a revenue cap for EnergyAustralia. On 17 December 2004, PB Associates completed its report on EnergyAustralia's revised capex application.

On 8 November 2004, the ACCC called for interested parties to make submissions on EnergyAustralia's revised capital expenditure. On 17 December 2004, the ACCC also called for interested parties to make submissions to PB Associates' report on EnergyAustralia's revised capital expenditure proposal.

On 3 March 2005, the ACCC released its supplementary draft decision for EnergyAustralia's capital expenditure application for the regulatory period 2004/05 to 2008/09.

On 18 March 2005, the ACCC held a public forum in Sydney so that interested parties could state their views on the supplementary draft decision for EnergyAustralia's capital expenditure application for the regulatory period 2004 to 2009.

The ACCC called for interested parties to make submissions to the ACCC's supplementary draft decision on EnergyAustralia's capital expenditure application for the regulatory period 2004/05 to 2008/09.