Email
AERInquiry@aer.gov.au
Contact for
Default market offer 2026–27
The DMO caps the prices a retailer can charge a standing offer customer. It also serves as a reference price for market offers in these regions.
Type
Reviews
Status
Open
APA Victorian Transmission System - 2026 tariff variation notice
APA Victorian Transmission System submitted to the AER an annual tariff variation notice for the period 1 January 2026 - 31 December 2026.
Type
Tariff variations
Status
Current
AER publishes APA’s Victorian Transmission System 2028–32 reference service proposal
The AER will undertake a review of APA’s 2028–32 reference service proposal prior to publishing an approved version. Submissions invited by 23 December 2025.
Type
Communications
AER releases 2025 electricity transmission and distribution benchmarking reports
These reports are used to benchmark electricity network service providers’ productivity over time, against other networks and the economy
Type
Communications
Annual benchmarking reports 2025
We examine the relative efficiency of the distribution and transmission electricity network service providers
Type
Reviews
Status
Current
AER publishes 2026 gas tariff variation notice for APA’s Victorian Transmission System
We will now undertake compliance checks of APA’s tariff variation notice prior to publishing an approved version.
Type
Communications
AER publishes the Eligible Experts’ report for the 2026 Rate of Return Instrument review
AER has published the Eligible Experts’ report for the 2026 Rate of Return Instrument review.
Type
Communications
2025 Rate of Return annual data update released
This update illustrates annual changes in market data for the energy network businesses we regulate
Type
Communications
AER price-responsive reporting guideline
The price-responsive reporting guideline specifies how we will meet our monitoring and reporting obligations under rule 3.10C.3(b) of the NER.
Type
Guidelines
Status
Current
AER releases final price-responsive reporting guideline
We have published the final AER price-responsive reporting guideline which sets out our approach to new monitoring and reporting obligations.
Type
Communications
Key milestones and dates updated for the 2026 Rate of Return Instrument review
AER has updated the key milestones and dates for the 2026 Rate of Return Instrument review, including adding an Eligible Experts’ report public forum.
Type
Communications
Consultation now open on TasNetworks stage 1 contingent project application
The application includes revenue recovery for the construction of the Tasmanian on-land portion of Project Marinus. Submissions close 28 November 2025.
Type
Communications
Submissions open on Ausgrid’s revised Macquarie Park area contingent project application
Have your say on Ausgrid’s revised contingent project application to construct a new substransmission substation (Wallumatta). Submissions close 5 December 2025
Type
Communications
AER appoints reference groups and panels for its 2026 Rate of Return Instrument review
The AER has appointed a Consumer Reference Group and a panel of Eligible Experts for its 2026 Rate of Return Instrument (RORI) review.
Type
Communications
AER makes determination on TasNetworks distribution 2024 storm cost pass through
We have published our determination on TasNetworks’ distribution pass through application for costs from the 26 August – 4 September 2024 storm in Tasmania.
Type
Communications
Ulverstone Pipeline
Ulverstone Pipeline exemption
Type
Capacity Trading Platform and Day Ahead Auction exemptions
Status
Current
AER releases draft decisions on Victorian electricity distribution determinations 2026-31
The AER has released draft distribution determinations for Victorian electricity distributors AusNet, Jemena, CitiPower, Powercor and United Energy.
Type
Communications
2025 review of the AER price-responsive reporting guideline
We published our AER price-responsive reporting guideline on 9 September 2025.
Type
Reviews
Status
Current
AusNet Services transmission cost pass through – February 2024 storm
We have published our determination on AusNet’s pass through application for transmission tower rebuild costs following the February 2024 storm in Victoria.
Type
Communications
Capital Expenditure Guideline Review 2025
On 26 May, we published our final amendments to the Capital Expenditure Incentive Guidelines (Guidelines).
Type
Reviews
Status
Current