Email
REZ@aer.gov.au
Contact for
System Strength Project (hybrid)
The AER has commenced its assessment of Transgrid’s System Strength Project and will make its final decision on or before 21 October 2026.
Type
Determinations
Status
Open
AER publishes its Non-disclosure Guideline – Electricity Infrastructure Investment Act 2020 (NSW)
This Guideline provides greater clarity for the treatment of non-disclosure claims, and supports consistent and efficient assessment under the EII framework.
Type
Communications
Review of the Non-disclosure Guideline – Electricity Infrastructure Investment Act 2020 (NSW)
The AER has published the Non-disclosure Guideline, which will take effect on 2 July 2026.
Type
Reviews
Status
Historical
Enabling Central-West Orana Renewable Energy Zone Network Infrastructure Project (non-contestable)
The AER made its final decision on Transgrid’s CWO Enabling Project.
Type
Determinations
Status
Open
Hunter-Central Coast Renewable Energy Zone Network Infrastructure Project (non-contestable)
Read Ausgrid’s proposal for the Hunter Central Coast REZ Network Infrastructure Project
Type
Determinations
Status
Current
NSW Electricity Infrastructure Roadmap - contribution determination 2026−27
View our decision on the maximum amount electricity distributors can pass through to consumers in 2026-27 as costs for the NSW infrastructure roadmap
Type
Cost pass throughs
Status
Current
AER consults on its preliminary position paper for Transgrid’s hybrid System Strength Project revenue determination
Have your say on our preliminary position paper for the System Strength Project hybrid revenue determination by 28 July 2026.
Type
Communications
AER finalises the targeted review of its revenue determination guideline for NSW non-contestable projects
The AER has published a new version of its revenue determination guideline for NSW non-contestable projects.
Type
Communications
AER publishes 2026–27 revenue adjustment decisions for NSW non-contestable REZ network projects
We published our decisions on Ausgrid’s and Transgrid’s 2026–27 adjustment proposals for their NSW non-contestable network project determinations.
Type
Communications
Revenue determination guideline for NSW non-contestable projects
Our guideline explains the Transmission Efficiency Test and how we determine revenue for network operators authorised to carry out non-contestable projects.
Type
Guidelines
Status
Current
Consultation opens on the System Strength Project hybrid revenue proposal
Have your say on the System Strength Project hybrid revenue proposal by 18 May 2026.
Type
Communications
AER publishes 2026–27 revenue adjustment proposals for NSW non-contestable REZ network projects
We'll undertake a review of the annual adjustment proposals from Ausgrid and Transgrid relating to their revenue determinations for NSW non-contestable projects
Type
Communications
AER publishes its final decision on Transgrid’s Central-West Orana Enabling Project for the 2026–31 regulatory period
The AER has published its final determination on Transgrid’s CWO Enabling Project for the 2026–31 regulatory period.
Type
Communications
Contribution determination for 2026-27 under NSW Roadmap released
The total contribution determination amount for 2026−27 is $593.16 million.
Type
Communications
AER makes final decision for Transgrid’s Enabling Central-West Orana REZ non-contestable revenue determination
The AER made its final decision on Transgrid’s CWO Enabling Project and will publish its final decision after EnergyCo informs us financial close has occurred.
Type
Communications
AER publishes final decision for Ausgrid’s Hunter-Central Coast REZ non-contestable network infrastructure project
The AER has published its final decision on Ausgrid’s HCC REZ project for the 2026–31 regulatory control period.
Type
Communications
AER releases revised Revenue Determination Guideline for NSW non-contestable projects
The AER has published an updated version of the Revenue determination Guideline for NSW non-contestable projects.
Type
Communications
2025 Review of the revenue determination guideline for NSW non-contestable projects
The AER has published an updated version of the Revenue determination Guideline for NSW non-contestable projects.
Type
Reviews
Status
Current
AER makes final decision for Ausgrid’s Hunter-Central Coast REZ non-contestable revenue determination
The AER made its final decision on Ausgrid’s HCC REZ project and will publish its revenue determination after EnergyCo informs us financial close has occurred.
Type
Communications
AER consults on its preliminary position paper for Transgrid’s CWO Enabling Project
Have your say on our preliminary position paper for the CWO Enabling Project by 17 November 2025.
Type
Communications