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.

The AER must publish a framework and approach paper in anticipation of the transmission determination. The framework and approach paper will set out the AER’s likely approach in the transmission determination for AusNet Services on such matters as:

• application of incentive schemes
• expenditure forecast assessment guidelines, and
• whether depreciation will be based on forecast or actual capital expenditure.

Interested parties are encouraged to consider the key dates.

Indicative dates for key milestones in the decision-making process

*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.

On 5 August 2024, the AER released a Notice on whether to amend or replace the current AusNet Services transmission Framework and Approach (F&A).

We invited energy consumers and other interested parties to make submissions on AusNet Services transmission Framework and Approach by 4 September 2024. No submissions were received. 

On 30 September 2024 the AER issued a decision to replace AusNet Services' F&A.