As required by the National Electricity Rules (NER), AER is preparing to undertake the next transmission determination for the Victorian electricity transmission network service provider (TNSP) — AusNet Services. The AER’s transmission determination will cover the next regulatory control period (1 April 2027 to 31 March 2032). AusNet Services' regulatory proposal is due by 31 October 2025.
Interested parties are encouraged to consider the key dates.
Indicative dates for key milestones in the decision-making process
Milestone | Date* |
| AER consultation on need to amend or replace the Framework and Approach (F&A) | 31 August 2024 |
| AER issues decision on need to amend or replace the F&A | 30 September 2024 |
| AER publishes position paper on F&A | December 2024/January 2025 |
| AER publishes F&A for AusNet Services | 30 April 2025 |
| AusNet Services submits its regulatory proposal to AER | 31 October 2025 |
| AER publishes an issues paper and holds a public forum | December 2025/January 2026** |
| Submissions on regulatory proposal close | February 2026 |
| AER publishes draft determination decision | 30 June 2026 |
| AER holds a pre-determination conference | July 2026 |
| AusNet Services submits revised regulatory proposal to AER | September 2026 |
| Submissions on revised regulatory proposal and draft decision close | October 2026 |
| AER publishes transmission determination for regulatory control period | 31 January 2027 |
*This is an indicative timetable and is subject to change.
** The date provided is based on the AER receiving compliant proposals. The date may be altered if we receive non-compliant proposals.