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Regulatory test consultations

We're always working to identify limitations or constraints in our distribution network. When we propose to establish a new, large distribution asset to address a constraint, Registered Participants and Interested Parties are invited to offer alternative solutions that satisfy the Regulatory Investment Test for Distribution (RIT-D).

We analyse the different options and prepare a report, and our current consultation reports can be viewed below.

New consultation reports are available in our RIT-D Partner Portal, so make sure you register now (below) to receive notifications when new reports are published.

Further information about how we're managing the network can be found in our Distribution Annual Planning Report.

Our requirements under the National Electricity Rules

Under the National Electricity Rules, if we're proposing to establish a new, large distribution asset to address a constraint, then we're required to:

  • consult with Registered Participants, the Australian Energy Market Operator (AEMO) and Interested Parties on     the anticipated limitation and options to address the constraint, within     the timeframe required for corrective action
  • carry     out a detailed economic cost effectiveness analysis of options to identify     solutions that satisfy the Regulatory Test
  • prepare a report for affected Registered Participants, the AEMO and Interested Parties which includes an assessment of all identified options, details of the preferred solution and the recommended action to be taken.

Register for information and alerts

The RIT-D Partner Portal is how to interact with us for Regulatory Investment Test activities. It replaces the Alert Service subscription you may have had with us.

Register for our RIT-D Partner Portal to:

  • receive email notifications about new proposals open to alternative solution offers
  • receive email notifications when new documents are published
  • submit responses to the non-network options report
  • download the draft and final determinations
  • submit enquiries
  • see all RIT-D activities currently being undertaken in our network.

Need to register? Fill in our online form now.

Already registered? Login for the latest information or to update your details. Check out the RIT-D Partner Portal User Guide (PDF 499.6 kb).

Current consultations

Click on an area below to view the current consultations.

Cannonvale

Report typeDescriptionDate issuedSubmission closes
Final Project Assessment Report
(PDF 2.0 mb)

Ergon Energy has prepared this Final Project Assessment Report in accordance with the requirements of clause 5.17.4(o) of the National Electricity Rules (NER).

This report represents the final stage of the consultation process in relation to the application of the Regulatory Investment Test for Distribution (RIT-D) on potential credible options to address the identified need at Cannonvale.

13 March 2020N/A
Draft Project Assessment Report
(PDF 2.2 mb)

Ergon Energy has prepared this Draft Project Assessment Report in accordance with the requirements of clause 5.17.4(i) of the National Electricity Rules (NER).

This report represents the second stage of the consultation process in relation to the application of the Regulatory Investment Test for Distribution (RIT-D) on potential credible options to address the identified need at Cannonvale.

13 Dec 201924 Jan 2020
Non-Network Options Report
(PDF 1.5 mb)

Cannonvale 66/11kV substation (CANN) and the surrounding 66 kV sub-transmission network supplies approximately 7,198 customers including major customers such as the Proserpine Sugar Mill, Hamilton Island, South Molle Island and Daydream Island.

The 66 kV sub-transmission network in the Cannonvale and Jubilee Pocket area consists of radial 66 kV timber pole lines with a number of sections of underground cable. There is currently no remote switching capability.

In its current state, due to the radial nature of the network and the reliance upon manual switching, a credible fault on the sub-transmission network in the Cannonvale and Jubilee Pocket area would mean that load cannot be restored within the requirements of the Safety Net security criteria, with this situation worsening as load increases.

This report is an invitation to registered participants and interested parties to make submissions on credible options to address this identified need.

24 Jun 201919 Sep 2019

Cape River

Report typeDescriptionDate issuedSubmission closes
Final Project Assessment Report (PDF 2.2 mb)

Ergon Energy has prepared this Final Project Assessment Report in accordance with the requirements of clause 5.17.4(o) of the National Electricity Rules (NER).

This report represents the final stage of the consultation process in relation to the application of the Regulatory Investment Test for Distribution (RIT-D) on potential credible options to address the identified need at Cape River.

13 March 2020N/A
Notice of No Non-Network Options (PDF 2.3 mb)

Ergon Energy has identified a need for investment to remediate the safety and reliability risks currently associated with the aged assets at Cape River Substation in order to maintain a safe, reliable supply of electricity to customers in the Cape River region.

This notice has been prepared under clause 5.17.4(d) of the NER and summarises Ergon Energy's determination that no non-network option is, or forms a significant part of, any potential credible option for this RIT-D.

13 Dec 2019N/A

Cloncurry

Report typeDescription Date issued Submission closes
Non-Network Options Report (PDF 1.5 mb)Cloncurry 66/11kV Substation (CLON) and North Cloncurry 66/11kV Substation (NOCL) are normally supplied from Chumvale 220/66kV Substation (CHUM) via a single circuit 66kV sub-transmission feeder. Chumvale Substation is supplied by a single circuit 220kV feeder from the Mica Creek 'C' Substation (MICC) at Mt Isa. There is also a single circuit 66kV sub-transmission feeder from Mount Isa's Duchess Road 132/11/66kV Substation (DURO) to a normally open isolation point (designated DR-CC-1), which is located outside Chumvale Substation.

The thermal rating of the DR-CC-1 66kV feeder is no longer adequate to supply Cloncurry and Ergon Energy would not comply with the Safety Net requirements based on credible contingencies benchmarked against 50% POE load in the present configuration.

This report represents the first stage of the consultation process in relation to the application of the Regulatory Investment Test for Distribution (RIT-D) on potential credible options to address the identified need at Cloncurry.

Ergon Energy has prepared this Non-Network Options Report in accordance with the requirements of clause 5.17.4(e) of the National Electricity Rules (NER) and seeks information from interested parties about possible alternate solutions to address the need for investment.
14 Feb 202015 May 2020

Douglas Shire

Report typeDescriptionDate issuedSubmission closes
Non-Network Options Report
(PDF 1.7 mb)
We are seeking information about  solutions to address the reliability concerns in the Douglas Shire supply region, which may be  provided by parties other than Ergon Energy.20 Aug 201929 Nov 2019

Garbutt

Report typeDescriptionDate issuedSubmission closes
Final Project Assessment Report
(PDF 2.4 mb)

Ergon Energy has prepared this Final Project Assessment Report in accordance with the requirements of clause 5.17.4(o) of the National Electricity Rules (NER).

This report represents the final stage of the consultation process in relation to the application of the Regulatory Investment Test for Distribution (RIT-D) on potential credible options to address the identified need in the Townsville region.

13 March 2020N/A
Draft Project Assessment Report
(PDF 2.6 mb)

Ergon Energy Corporation Limited (Ergon Energy) has prepared this Draft Project Assessment Report (the Report) in accordance with the requirements of clause 5.17.4(i) of the National Electricity Rules (NER).

This report represents the second stage of the consultation process in relation to the application of the Regulatory Investment Test for Distribution (RIT-D) on potential credible options to address the identified need in the Townsville region.

13 Dec 201931 Jan 2020
Notice of No Non-Network Options
(PDF 3.6 mb)

Ergon Energy has identified a need for investment to remediate the safety and reliability risks currently associated with the aged assets at Garbutt Substation in order to maintain a safe, reliable supply of electricity to customers in the Townsville region.

This notice has been prepared under clause 5.17.4(d) of the NER and summarises Ergon Energy's determination that no non-network option is, or forms a significant part of, any potential credible option for this RIT-D.

13 Dec 2019

Gracemere

Report typeDescriptionDate issuedSubmission closes
Revised Final Project Assessment Report (PDF 1.4 mb)

Ergon Energy Corporation Limited has prepared this Revised Final Project Assessment Report in accordance with the requirements of clause 5.17.4(i) of the National Electricity Rules.

This report represents the final stage of the consultation process in relation to the application of the Regulatory Investment Test for Distribution (RIT-D) on potential credible options to address the identified need in the township of Gracemere.

24 Jan 2020N/A

Maryborough

Report typeDescriptionDate issuedSubmission closes
Notice of No Non-Network Options (PDF 430.4 kb)Maryborough 132/66kV substation (MARYSS) T59 is a Bulk Supply Point which supplies approximately 50,000 customers and 125MVA of peak load through connected Zone Substations. The 75MW Susan River Solar Farm is also connected to the 66kV network through a dedicated substation. MARYSS is located west of Maryborough and supplies the majority of the Fraser Coast Local Government Area, including the major regional centres of Maryborough and Hervey Bay as well as several smaller towns.

The purpose of this project is to address poor condition assets, compliance Safety Net provisions of the Distribution Authority, and compliance with performance standards as set out in the National Electricity Rules.

The internal investigations undertaken on the feasibility of the non-network solutions revealed that it is unlikely to find a complete non-network solution or a hybrid (combined network and non-network) solution to provide the magnitude of network support required in the Maryborough area to address the identified need.

The preferred network option is to replace assets in poor condition, install bus couplers to address Safety Net and upgrade protection to meet NER Network Performance requirements. This notice of no non-network options is therefore published in accordance with rule 5.17.4(d) of the National Electricity Rules. As the next step in the RIT-D process, Ergon Energy will now proceed to publish a Final Project Assessment Report.
26 Feb 2020

Pialba

Report typeDescriptionDate issuedSubmission closes
Notice of No Non-Network Options
(PDF 356.0 kb)

Pialba 66/11kV substation (PIALSS) is a Zone Substation which supplies approximately 5200 customers and 16MVA of peak load. PIALSS is located near the centre of Hervey Bay town and supplies the CBD area, the Hervey Bay Hospital, and the main shopping centre. There is also an extensive distribution network that supplies residential customers in the surrounding suburbs.

A condition assessment of PIALSS has identified assets that are recommended for replacement. These assets are forecast to reach retirement based on a combination of Condition Based Risk Management (CBRM) modelling and known issues with problematic plant, which are required to be replaced or decommissioned to manage the safety and network risks associated with unplanned failure.

The internal investigations undertaken on the feasibility of the non-network solutions revealed that it is unlikely to find a complete non-network solution or a hybrid (combined network and non-network) solution to provide the magnitude of network support required in the Hervey Bay area to address the identified need.

The preferred network option is to replace the assets in poor condition. This notice of no non-network options is therefore published in accordance with rule 5.17.4(d) of the National Electricity Rules. As the next step in the RIT-D process, Ergon Energy will now proceed to publish a Final Project Assessment Report.

3 April 2020

Pittsworth

Report typeDescriptionDate issuedSubmission closes
Draft Project Assessment Report
(PDF 1.2 mb)

Ergon Energy Corporation Limited (Ergon Energy) has prepared this Draft Project Assessment Report (the Report) in accordance with the requirements of clause 5.17.4(i) of the National Electricity Rules (NER).

This report represents the second stage of the consultation process in relation to the application of the Regulatory Investment Test for Distribution (RIT-D) on potential credible options to address the identified need.

  
Non-Network Options Report (PDF 1.2 mb)

Broxburn substation 33/11kV supplies the township of Pittsworth. Maximum demand in 2018 exceeded the substation nameplate capacity and is expected to exceed the emergency cyclic capacity by 2022. The two transformers at Broxburn substation were manufactured in the 1960s that they are near end of life including associated high voltage switches.

Ergon Energy has proposed to address these limitations by installing a 10MVA skid transformer and completed by December 2021.

This report is an invitation to registered participants and interested parties to make submissions about possible alternate solutions to address the identified limitations.

1 Jul 201910 Jan 2020

Planella

Report typeDescriptionDate issuedSubmission closes
Final Project Assessment Report
(PDF 1.4 mb)

Ergon Energy has prepared this Final Project Assessment Report in accordance with the requirements of clause 5.17.4(o) of the National Electricity Rules (NER).

This report represents the final stage of the consultation process in relation to the application of the Regulatory Investment Test for Distribution (RIT-D) on potential credible options to address the identified need at Planella.

13 March 2020N/A
Draft Project Assessment Report
(PDF 1.5 mb)

Ergon Energy has prepared this Draft Project Assessment Report in accordance with the requirements of clause 5.17.4(i) of the National Electricity Rules (NER).

This report represents the second stage of the consultation process in relation to the application of the Regulatory Investment Test for Distribution (RIT-D) on potential credible options to address the identified need at Planella.

15 Nov 201927 Dec 2019
Non-Network Options Report
(PDF 2.2 mb)

Planella 33/11kV substation (PLAN), located on the northern beaches of Mackay, is supplied via a single radial wood pole 33 kV sub-transmission line between North Mackay (NOMA) 33/11 kV substation and Planella substation.

Under most circumstances, the wood poles of the 33 kV sub-transmission line are accessible; however in the event of periods of heavy rainfall and/or king tides, sections of the line become virtually inaccessible.

In its current state, a fault on this line in an inaccessible location would mean that load cannot be restored within the requirements of the Safety Net security criteria, with this situation worsening as load increases.

This report is an invitation to registered participants and interested parties to make submissions on credible options to address this identified need.

24 Jun 201919 Sep 2019

Wide Bay Burnett

Report typeDescriptionDate issuedSubmission closes
Final Project Assessment Report (PDF 914.6 kb)

Ergon Energy Corporation Limited (Ergon Energy) has prepared this Final Project Assessment Report in accordance with the requirements of clause 5.17.4(i) of the National Electricity Rules (NER).

This report represents the final stage of the consultation process in relation to the application of the RIT-D on potential credible options to address the identified need to continue to provide electricity to the consumers in the Upper Burnett supply area in a reliable, safe and cost-effective manner.

3 April 2020 
Draft Project Assessment Report
(PDF 1004.3 kb)

Ergon Energy Corporation Limited (Ergon Energy) has prepared this Draft Project Assessment Report (the Report) in accordance with the requirements of clause 5.17.4(i) of the National Electricity Rules (NER).

This report represents the second stage of the consultation process in relation to the application of the Regulatory Investment Test for Distribution (RIT-D) on potential credible options to address the identified need.

19 Feb 202002 Apr 2020
Non-Network Options Report (PDF 1.1 mb)

The existing 66kV M028 feeder forms part of the 66kV subtransmission network supplying the 66/11kV zone substations Degilbo, Gayndah, Mundubbera Town and Eidsvold as well as the Mount Rawdon gold mine.

Feeder M028 is 92km long, 64 years old and has reached its end of life based on the condition of the 7/.104 HDBC conductor and wooden poles.

Ergon Energy has identified that the preferred internal network option is to replace the entire aged M028 feeder with a new 66kV single circuit concrete pole feeder, strung with Neon conductor and optical ground wire (OPGW), originating from the 132/66kV Isis Bulk Supply Point and connecting Degilbo and Gayndah zone substations by December 2023.

This is a Non-Network Options Report, where Ergon Energy is seeking information from interested parties about possible alternate solutions to address the need for investment.

16 Oct 201916 Jan 2020

Closed consultations

View the Closed consultations webpage to see the list of Regulatory Test Consultations that have now concluded.