Overview

Indicative timetable

Due to the COVID-19 pandemic, this project was paused. In April 2022, the AER provided an updated timeline.

Milestone Date
Discussion paper published  November 2019
Submissions on discussion paper closed January 2020
Issues paper published 31 May 2022
Submissions on issues paper close 22 July 2022
Draft guideline published November 2022
Submissions on draft guideline close December 2022
Final Guideline published March 2023

*Please note this timeline is subject to change. 

Proposal

On 7 March 2019, Energy Networks Australia wrote to the AER requesting that we delay our review of the Electricity Transmission Ring-fencing Guidelines. In March 2019, we published the letter and sought submissions from interested parties. 

AER - Letter requesting stakeholder comment on timing of transmission network ring-fencing review - 2 April 2019

Authors
AER
Content type
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ENA - Letter request to delay the Ring-fencing guideline (electricity transmission) Review  - 7 March 2019

Authors
Energy Networks Australia (ENA)
Content type
Document

AER - Letter from Paula Conboy to ENA regarding timing of Ring-fencing guideline (electricity transmission) Review - 16 May 2019

Authors
AER
Content type
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Submissions - Proposal

-

In response to our request for submissions, we received three submissions. One of the three submissions received was confidential and will not be published.

Andrew Nance - Submission regarding timing of the Ring-fencing guideline (electricity transmission) Review - 3 April 2019

Authors
Andrew Nance
Content type
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PIAC - Ring-fencing guideline (electricity transmission) Review - Submission - 18 April 2019

Authors
Public Interest Advocacy Centre (PIAC)
Content type
Document

Discussion paper

On 15 November 2019, the AER released a discussion paper to commence a review of ring-fencing arrangements for transmission network service providers (TNSPs). This paper sought input from stakeholders to inform the development of an updated Electricity Transmission Ring-fencing Guideline (guideline).

The transmission ring-fencing discussion paper:

  • provided an overview of services that can be provided by TNSPs
  • raised potential harms and benefits from TNSP participation in competitive markets for electricity services, and
  • provided examples of ring-fencing arrangements that could be adapted to an updated transmission ring-fencing guideline.

We consider that a review of transmission ring-fencing arrangements is timely. The current guideline was first developed in 2002 and underwent minor updates in 2005. The discussion paper considered changes in markets for contestable electricity services since the initial guideline, and the AER's recently developed national approach to ring-fencing of electricity distribution networks.

AER - Ring-fencing guideline (electricity transmission) - Discussion paper - 15 November 2019

Authors
AER
Content type
Document

Submissions - Discussion paper

We invited interested parties to make submissions on our discussion paper by 31 January 2020. We received nine submissions.

Energy Networks Australia - Electricity Transmission Ring-fencing Guideline Review - Submission to Discussion Paper - 31 January 2020

Authors
Energy Networks Association (ENA)
Content type
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Australian Energy Operations - Electricity Transmission Ring-fencing Guideline Review - Submission to Discussion Paper - 30 January 2020

Authors
Australian Energy Operations (AEO)
Content type
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AusNet Services - Electricity Transmission Ring-fencing Guideline Review - Submission to Discussion Paper - 31 January 2020

Authors
AusNet Services
Content type
Document

CitiPower Powercor and United - Electricity Transmission Ring-fencing Guideline Review - Submission to Discussion Paper - 31 January 2020

Authors
CitiPower, Powercor and United Energy
Content type
Document

Evoenergy - Electricity Transmission Ring-fencing Guideline Review - Submission to Discussion Paper - 31 January 2020

Authors
Evoenergy
Content type
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TasNetworks - Electricity Transmission Ring-fencing Guideline Review - Submission to Discussion Paper - 31 January 2020

Authors
TasNetworks
Content type
Document

TransGrid - Electricity Transmission Ring-fencing Guideline Review - Submission to Discussion Paper - 31 January 2020

Authors
Transgrid
Content type
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Spark Infrastructure - Electricity Transmission Ring-fencing Guideline Review - Submission to Discussion Paper - 03 February 2020

Authors
Spark Infrastructure
Content type
Document

Public Interest Advocacy Centre - Electricity Transmission Ring-fencing Guideline Review - Submission to Discussion Paper - 10 February 2020

Authors
Public Interest Advocacy Centre (PIAC)
Content type
Document

Issues paper

On 31 May the AER released an issues paper which re-commences the full review of the Transmission Ring-fencing Guideline.

AER - Ring-fencing guideline (electricity transmission) - Issues paper - May 2022

Authors
AER
Content type
Document

Stakeholder forum - Issues paper

The AER hosted a virtual public information session for stakeholders on 15 June 2022 from 9:30 to 10:30 am AEST. 

AER - Ring-fencing guideline (electricity transmission) Review - Slides from public information session - 15 June 2022

Authors
AER
Content type
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Submissions - Issues paper

-

Submissions to the issues paper closed on 22 July 2022.

AGL - Electricity Ring-fencing Guideline Review - Submission to Issues Paper - 21 July 2022

Authors
AGL
Content type
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Ausgrid, Endeavour Energy, Essential Energy - Electricity Ring-fencing Guideline Review - Submission to Issues Paper - 22 July 2022

Authors
Ausgrid
Endeavour Energy
Essential Energy
Content type
Document

AusNet Services- Electricity Ring-fencing Guideline Review - Submission to Issues Paper - 22 July 2022

Authors
AusNet Services (T)
Content type
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AusNet Services- Electricity Ring-fencing Guideline Review - Submission to Issues Paper (Attachment) - 22 July 2022

Authors
AusNet Services (T)
Content type
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AusNet Services- Response to AER Questions (Attachment 2) - 22 July 2022

Authors
AusNet Services (T)
Content type
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Australian Energy Operations - Electricity Transmission Ring-fencing Guideline Review - Submission to Issues Paper - 22 July 2022

Authors
Australian Energy Operations (AEO)
Content type
Document

Citipower, Powercor and United Energy - Electricity Transmission Ring-fencing Guideline Review - Submission to Issues Paper - 22 July 2022

Authors
CitiPower / Powercor / United Energy
Content type
Document

Clean Energy Investor Group - Electricity Ring-fencing Guideline Review - Submission to Issue Paper - 21 July 2022

Authors
Clean Energy Investor Group (CEIG)
Content type
Document

Energy Networks Australia - Electricity Transmission Ring-fencing Guideline Review - Submission to Issues Paper - 22 July 2022

Authors
Energy Networks Australia (ENA)
Content type
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Energy Networks Australia - Electricity Transmission Ring-fencing Guideline Review - Submission to Issues Paper (Attachment) - 22 July 2022

Authors
Energy Networks Australia (ENA)
Content type
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Iberdrola Australia - Electricity Transmission Ring-fencing Guideline Review - Submission to Issues Paper - 22 July 2022

Authors
Iberdrola
Content type
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Iberdrola Australia - Electricity Transmission Ring-fencing Guideline Review - Submission to Issues Paper (Attachment) - 22 July 2022

Authors
Iberdrola
Content type
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Jemena- Electricity Ring-fencing Guideline Review - Submission to Issues Paper - 22 July 2022

Authors
Jemena
Content type
Document

Network REZolution - Electricity Transmission Ring-fencing Guideline Review - Submission to Issues Paper - 22 July 2022

Authors
Network REZolution
Content type
Document

Powerlink Queensland - Electricity Ring-fencing Guideline Review - Submission to Issues Paper - 22 July 2022

Authors
Powerlink Queensland
Content type
Document

Snowy Hydro - Electricity Ring-fencing Guideline Review - Submission to Issues Paper - 22 July 2022

Authors
Snowy Hydro Limited
Content type
Document

TasNetworks- Electricity Ring-fencing Guideline Review - Submission to Issues Paper - 22 July 2022

Authors
TasNetworks
Content type
Document

TasNetworks - Electricity Ring-fencing Guideline Review - Submission to Issues Paper (Attachment 1) - 22 July 2022

Authors
TasNetworks
Content type
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TasNetworks - Electricity Ring-fencing Guideline Review - Submission to Issues Paper (Attachment 2) - 22 July 2022

Authors
TasNetworks
Content type
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Tilt Renewables - Electricity Ring-fencing Guideline Review - Submission to Issues Paper - 22 July 2022

Authors
Tilt Renewables
Content type
Document

Transgrid - Electricity Transmission Ring-fencing Guideline Review - Submission to Issues Paper - 22 July 2022

Authors
Transgrid
Content type
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Transgrid - Electricity Transmission Ring-fencing Guideline Review - Submission to Issues Paper (Attachment) - 22 July 2022

Authors
Transgrid
Content type
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Late submissions

Submissions received after 22 July 2022. 

Australian Energy Council - Electricity Transmission Ring-fencing Guideline Review - Submission to Issues Paper - 25 July 2022

Authors
Australian Energy Council (AEC)
Content type
Document

National Electrical and Communications Association - Electricity Transmission Ring-fencing Guideline Issues Paper submission - 26 July 2022

Authors
National Electrical and Communications Association (NECA)
Content type
Document

Northern Beaches Council - Electricity Ring-fencing Guideline Review - Submission to Issues Paper - 28 July 2022

Authors
Northern beaches council
Content type
Document