RAB roll-forward

Aurizon Network maintains a record of the value of its existing assets for regulatory pricing, called a regulatory asset base (RAB). Aurizon Network rolls forward its RAB each year, adjusting for indexation, depreciation, disposals, transfers and the addition of approved capital expenditure. The approved 2017 access undertaking requires Aurizon Network to annually seek the QCA’s approval of its proposed roll-forward of the RAB.

RAB roll-forward 2021–22

On 3 April 2023, Aurizon Network submitted a RAB roll-forward proposal for 2021–22. We approved this proposal on 11 April 2023.

RAB roll-forward 2020–21

Aurizon Network submitted a RAB roll-forward proposal for 2020–21 on 20 May 2022. We approved this proposal on 13 June 2022.

RAB roll-forward 2019–20

On 8 April 2021, we approved Aurizon Network’s 2019–20 RAB roll-forward proposal, submitted on 18 March 2021.

RAB roll-forward 2018–19

On 3 July 2020, we approved Aurizon Network’s 2018–19 RAB roll-forward proposal, submitted on 15 June 2020.

RAB roll-forward 2017–18

Aurizon Network submitted its 2017–18 RAB roll-forward amounts on 8 November 2019. We approved the RAB roll-forward proposals on 19 December 2019.

RAB roll-forward 2015–16 and 2016–17

The roll-forward of the RAB takes into account the QCA’s approved capital expenditure and calculates other components, such as inflation and depreciation, in accordance with schedule E of the 2017 access undertaking.

Upon request from Aurizon Network, we agreed to delay our review of the 2015–16 and 2016–17 RAB roll-forward. Aurizon Network received an extension until one month after the final approval of the 2017 draft access undertaking. The extension requests and approval letters can be found here.

Aurizon Network’s 2017 access undertaking came into effect on 21 February 2019.

Aurizon Network submitted its 2015–16 and 2016–17 RAB roll-forward amounts on 21 March 2019, followed by an addendum to the initial submission on 15 May 2019.

We approved the RAB roll-forward proposals on 29 May 2019.