Consultation papers

Power and Water is in the process of developing and revising a number of market procedures and guidelines.

For a summary of consultations that have recently taken place or will be undertaken in the near future, refer to the I-NTEM Consultation Work Program.

Current Consultation Documents

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Power and Water have produced a draft I-NTEM Dispatch and Pricing Procedure to provide an overview of the processes by System Control to perform relevant dispatch and pricing obligations under the Power System Controller Licence.

Interested parties can provide feedback to the Power System Controller by emailing market.operator@powerwater.com.au by 4pm Wednesday 25 November 2020. It should be noted that Power and Water will publish submissions in full. Should a stakeholder consider sections of their submission as confidential, a separate public version of the submission should also be provided to Power and Water Corporation for publication.

For further information on the consultation please refer to the Revision of Generator Offer Procedure and Tie Break Procedure- Consultation Paper.

Submissions received from Market Participants

UPDATE 4, 29 September 2021 – Power and Water Submission to the Utilities Commission

The System Control Technical Code Incident Reporting consultation has now been finalised and submitted to the Utilities Commission (UC). Power and Water would like to thank all parties who provided a submission on the proposed changes to the Code.

Below is the submission documents to the UC.

Clean copies of the System Control Technical Code will be provided in due course.
Interested Parties can provide feedback/questions to the Market Operator by email to market.operator@powerwater.com.au

UPDATE 3, 25 August 2021 – Submissions received from Market participants

Power and Water received four submissions in total, please find below all the public submissions received:

UPDATE 2, 9 July 2021 – Meeting between System Controller and Network Operator

Power and Water Corporation holds the Network Operator license and the System Control license and is subject to ring fencing arrangements. Representatives from these two ring fenced businesses within Power and Water Corporation met on 7 July 2021 to discuss the proposed changes to Incident Reporting in the System Control Technical Code. The discussion broached a number of suggestions by the Network Operator and the System Controller encouraged these suggestions to be provided by a submission to the consultation. The discussion is summarised in the below document for the benefit of all stakeholders.

View the Consultation Update – Meeting between System Controller and Network Operator PDF, 613.79 KB

UPDATE 1, 29 June 2021 – Deadline for submissions extended

Due to COVID lockdowns we are extending the deadline for submissions on the proposed changes to the System Control Technical Code by two weeks. Submissions are invited by 4PM ACST 13 July 2021 and should be emailed to market.operator@powerwater.com.au

Consultation commenced 14 May 2021

Power and Water Corporation in its capacity as the Power System Controller is seeking to make changes to provisions in the System Control Technical Code (Code) that relate to power system incident reporting procedures.

Section 7 of the Code currently prescribes obligations on the System Controller and System Participants in regards to reporting and investigation of power system incidents. The System Controller has determined that these provisions are not fit for purpose and should be amended to reflect good electricity industry practice.

In order to amend the Code, clause 1.8.2 requires the System Controller to consult with industry and seek approval of Utilities Commission (the Commission).

The proposed amendments are outlined in the following documents:

Submissions on the proposed amendments to Code are invited by 4 pm ACST 29 June 2021 and should be emailed to market.operator@powerwater.com.au

Power and Water will publish all submissions received in full. Should a stakeholder consider sections of their submission as confidential, a separate public version of the submission should be provided to Power and Water for publication.

Closed Consultation documents

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The Plant Outage Procedure 1.0 was approved on 19 October 2020. Power and Water would like to thank all parties who were involved in the consultation process to develop this new procedure.

The Plant Outage Procedure now applies to generation, transmission, or distribution plant connected to the Northern Territory regulated power systems for which the Power System Controller is responsible for coordinating and sanctioning in order to manage the risk of system security and reliability.

Consultation Impact Statement – Plant Outage Procedure
Draft Plant Outage Procedure
Submissions received from Market Participants
Power System Controller consultation response to submissions
Final approved Plant Outage Procedure
1. Final Plant Outage Procedure V1.0 (clean version)
2. Final Plant Outage Procedure V1.0 (track changes)

The System Strength Impact Assessment Guidelines (SSIAG) and Generator and Load Model Guidelines and Model Change Management Requirements (Model Guidelines) was approved on 16^th October 2020. Power and Water thanks all parties who were involved in the consultation process for the draft guidelines.

The final SSIAG and Model Guidelines were developed in accordance with the requirements in the Network Technical Code (NTC).

The SSIAG was developed with reference to the AEMO System Strength Impact Assessment Guidelines v1.0 effective from 1 July 2018. They provide guidance for undertaking a system strength impact assessment for a proposed new generating system, an alteration to existing generating system, or new network service facilities connected to one of Power and Water’s Regulated Networks.

The Model Guidelines provide guidance for Users regarding the requirements they are expected to meet in providing computer models and associated information for their connected plant and equipment. The guidelines have been developed in accordance with clause 3.3.4 of the NTC. Providing models that meet the functional and accuracy requirements specified in the Model Guidelines will assist in maintaining safe and reliable operation of the power system within its specified limits.

Consultation Impact Statement - System Strength Impact Assessment Guidelines and Generator and Load Model Guidelines and Model Change Management Requirements
DRAFT - System Strength Impact Assessment Guidelines
DRAFT - Generator and Load Model Guidelines and Model Change Management Requirements
Stakeholder Information session – presentation slides
Submissions received from Market Participants:
1.ENI Australia Limited
2.NT Solar
3.EDL
4.DIgSILENT Pacific Pty Ltd
5.Territory Generation
Response to stakeholder submissions – System Strength Impact Assessment Guidelines
Approved System Strength Impact Guidelines:
1. Approved System Strength Impact Assessment Guidelines v1.2 (clean version)
2. Approved System Strength Impact Assessment Guidelines v1.2 (track changes)
Response to stakeholder submissions – Generator and Load model Guidelines and Model Change Management Requirements
Approved Generator and Load Model Guidelines and Model Change Management Requirements:
1. Approved Generator and Load Model Guidelines and Model Change Management Requirements v1.1 (clean version)
2. Approved Generator and Load Model Guidelines and Model Change Management Requirements v1.1 (track changes)

Generator Offer Procedure and Generating Unit Tie Break Procedure

The Generator Offer Procedure 2.0 and Generating Unit Tie Break Procedure V2.0 revisions were approved on 4 September 2020. These revised procedures supersede V1.0 of both documents. Power and Water would like to thank all parties who were involved in the consultation process of the procedure revisions.

The revised procedures now cater for an increased number of Generator Participants and technology mix in the Darwin Katherine Power System.

Revision of Generator Offer Procedure and Tie Break Procedure- Consultation Paper
Draft I-NTEM Generator Offer Procedure
Draft I-NTEM Generating Unit Tie Break Procedure
Submissions received from Market Participants
1. EDL
2. Territory Generation

The Generator Forecasting Compliance Procedure (Procedure) was approved on 13 July 2020. Power and Water thanks all parties who were involved in the consultation process for the draft Procedure.

The final Generator Forecasting Compliance Procedure seeks to address the Network Technical Code (Code) requirement for Power and Water to publish a procedure that specifies the process to be used to detect and respond to generator capacity forecasting non-compliance to the accuracy obligations of the Code.

Consultation Impact Statement – Generator Forecasting Compliance Procedure
Draft Generator Forecasting Compliance Procedure
Submissions received from Market Participant
Market Operator consultation response to submissions
1. Generator Forecasting Compliance Procedure - Response to submissions
2. 24-hour Generator Forecasting Compliance Example
Approved Generator Forecasting Compliance Procedure
1. Final Generator Forecasting Compliance Procedure (clean version)
2. Final Generator Forecasting Compliance Procedure (track changes)

Final Decision/Approved Codes

On 5 March 2020, the Utilities Commission (UC) released their final decision on Power and Water’s proposed Generator Performance Standards (GPS). Power and Water would like to thank all parties who were involved in the consultation process on the proposed standards.

Attached below is the final approved version of the codes.

Power and Water have amended the Secure System Guidelines to reflect the final decision along with changes identified throughout the GPS consultation process. The Overview of changes to Secure System Guidelines Version 4.2 provides a summary of the revisions made to the guidelines.

Attached below is the final approved version of the Secure System Guidelines and an overview of the changes made:

Power and Water Submission to the Utilities Commission

The second round of the Generator Performance Standards (GPS) consultation has now been finalised and submitted to the Utilities Commission (UC). Power and Water would like to thank all parties who attended the workshops and provided a submission on the proposed standards.

Power and Water believe the solutions proposed in this application and code changes are appropriately tailored to the specific conditions that are found in the NT and will enable the ongoing secure operation of the NT power systems.

Attached below is the response to the UC along with a response to stakeholder’s submissions

Clean copies of the Network Technical Code and System Control Technical Code will be provided in due course.

Interested Parties can provide feedback/questions to the Market Operator by email to market.operator@powerwater.com.au

Round 2 Submissions

This second round of the Generator Performance Standards (GPS) consultation has now closed. Power and Water would like to thank all parties who attended the workshop and to those who have provided a submission on the proposed standards.

Power and Water received eleven submissions in total with three marked as confidential, please find below all the public submissions we received:

Power and Water Corporation’s responses to these submissions will be published in due course.

Workshop #2 – Presentation and Questions on Notice

Power and Water held its second workshop on the NT Generator Performance Standards (GPS) on Wednesday 26^th June at the Darwin Innovation Hub.
This workshop provided participants with Power and Water’s updated position on the GPS and sought to gain further feedback to continue the development of the standards. Attached below is the presentation from the workshop and the questions taken on notice during the workshop along with Power and Water’s responses.

Interested Parties can provide feedback to the Market Operator by email to market.operator@powerwater.com.au by COB Friday 19^th July 2019. Alternatively if participants prefer, submissions can be made directly to the Utilities Commission at utilities.commission@nt.gov.au.

For further information on the consultation process, please refer to the Consultation Overview Paper and additional materials which can be found below under the Round 2 Consultation tab.

Round 2 Consultation

Power and Water is commencing our second round of Generator Performance Standards (GPS) consultation with the release of the following documents:

Consultation overview paper
Appendix A | response to stakeholder submissions
Appendix B | Updated Codes
1. Network Technical Code (clean, track changes)
2. System Control Technical Code (clean, track changes)
3. Secure System Guidelines (clean, track changes)
Appendix C | Entrua’s technical verifier’s report

In addition to the documents attached, Power and Water is holding a second workshop scheduled for Wednesday 26 June. This workshop will begin with a high level summary of what the GPS are, the overarching regulatory and policy framework and a recap of the NT system context. This will ensure all participants have a common foundation of knowledge.

Our intention for this second round is to walk you (our key stakeholders) through the amended proposal and highlight key issues arising from our initial consultation, by:

Publishing a consultation pack that provides a standalone record of what we are now proposing and why,

Seeking to discover if the proposed GPS obligations are readily understood and if there is any relevant evidence that has not been considered, particularly in terms of the things our regulator must assess?

We seek open, honest and genuine feedback when conducting engagement with industry bodies and system participants and look forward to continuing our engagement journey with you. Interested parties can provide feedback to the Market Operator by emailing market.operator@powerwater.com.au by COB Friday, 19^th July 2019.

Alternatively if participants prefer, submissions can be made directly to the Utilities Commission at utilities.commission@nt.gov.au. For further information on the consultation process please refer to the Consultation Overview Paper.

Workshop #2 – Wednesday 26 June 2019

Power and Water invite all interested parties to attend our second workshop on the NT generator performance standards (GPS).

We thank everyone involved in our initial consultation and for the valuable feedback on our initial consultation paper. The feedback received to date and further analysis has moved our thinking. This further round of consultation seeks to provide a standalone record of what we are now proposing for the GPS and why. Before the workshop we will publish a consultation paper and proposed code amendments.

Date/time: Wednesday 26 June, 10am-4pm

Location: Darwin Innovation Hub (Level 1/48-50 Smith St, Darwin)

RSVP:market.operator@powerwater.com.au, by Monday 24 June 2019

The workshop will walk stakeholders through the current context of this review, key issues arising from stakeholder feedback and our amended proposals for the GPS. We will present for discussion case studies and technical examples that illustrate the key concepts that underpin the GPS requirements and which address our stakeholders’ feedback.

Network Technical Code, System Control Technical Code and Secure System Guideline Review

This consultation has now closed. Submissions for publication (including questions for the information session) were received from the following participants:

Power and Water Corporation’s responses to all submissions received will be published in due course.

UPDATE # 3 - GPS Review Consultation Supplementary Information – Contingency Frequency Control Ancillary Services (C-FCAS)

Attached is a supplementary paper to the Generator Performance Standards consultation process currently underway. The paper provides further clarity on the proposed C-FCAS capability obligation and how this service will be operated and paid for within the existing arrangements and the proposed new Northern Territory Electricity Market framework.

This will be the last supplementary paper to be released as part of this consultation. The consultation closing date is 4pm Friday 29 March 2019.

UPDATE # 2 - GPS Review Consultation Supplementary Information

Attached is a supplementary paper to the Generator Performance Standards consultation process currently underway. The content of this paper is based on the valuable feedback received so far from stakeholders via the information session held on 18 February 2019 and correspondence received to date. The paper includes:
further clarity on the objectives of the proposed Generator Performance Standard amendments;
new capacity forecasting requirements; and
further background regarding the proposed removal of the semi-scheduled generator classification.

A further paper on contingency frequency control ancillary services will be released as soon as possible.

As previously noted, to allow stakeholders sufficient time to factor in the additional information into their submissions, the consultation closing date has been extended until 4pm Friday 29 March 2019.

UPDATE # 1 - GPS Review Consultation Extension Friday 29 March 2019

The Power and Water Corporation (PWC) and the Department of Treasury and Finance (DTF) recognise it is critical for stakeholders and potential proponents to fully understand the links and interactions between the Generator Performance Standards review (conducted by PWC) and the draft NTEM Functional Specification review (conducted by DTF).

On Tuesday 12 March 2019 two additional papers will be released providing further clarity on forecasting and contingency frequency ancillary service requirements. Noting that stakeholders need time to review these documents and have sufficient time to factor in the additional information into their submissions and for all those who have already made a submission be able to reflect on this and amend or add to their submission, as appropriate. The date for submissions has been extended on both reviews until 4pm Friday 29 March 2019.

An Information session was held on the 18th February 2019.

Please click this link for a copy of the presentation.

To allow interested parties time to absorb the additional information and incorporate any further comments in their submission, the consultation period has been extended to COB Friday 8 March 2019.

To find out more about the proposed reforms and the consultation process, click here.

Power and Water are consulting on changes to the rules governing the connection of new generators in the Northern Territory. The proposed amendments seek to accommodate the increasing penetration of renewable generators while maintaining power system security and reliability to implement action 4(c) of the Northern Territory Government’s Renewable Energy and Electricity Market Reform Implementation Plan 2018-20, with further reviews of the Codes expected throughout 2019.

The Network Technical Code (NTC) lists the requirements that all network users are required to comply with regarding connections to and the use of the electricity network. The System Control Technical Code (SCTC) specifies the performance standards of power systems and operational requirements that apply to system participants’ plant and equipment connected to a power system. The Secure System Guidelines detail the principles for determining whether a Power System operated under Licence from the NT Utilities Commission is in a secure operating state.

Interested parties can provide feedback to the Market Operator by emailing market.operator@powerwater.com.au by COB 25 February 2019. Alternatively if participants prefer, submissions can be made directly to the Utilities Commission at utilities.commission@nt.gov.au. For further information on the consultation process please refer to the Consultation Overview Paper.

1. Generator Performance Standards Consultation Overview Paper

2. System Control Technical Code V6 (proposed draft)

3. System Control Technical Code V5 (marked up identifying amendments)

4. Network Technical Code and Network Planning Criteria V4 (proposed draft)

5. Network Technical Code and Network Planning Criteria V3.1 (marked up identifying amendments)

6. Secure System Guidelines Version 4.1 (proposed draft)

7. Secure System Guidelines Version 4.1 (marked up identifying amendments)

The Secure System Guidelines Version 4.2 was approved on 30 April 2020. This supersedes the Secure System Guidelines Version 4.0 which was updated to reflect the Utilities Commission (UC) final decision on Power and Water’s proposed Generator Performance Standards (GPS along with changes identified throughout the GPS consultation process.

The Secure System Guidelines Version 4.2 is open to comment on an ongoing basis, however a formal comprehensive review is expected to commence during 2020. Direct all comments and queries via email to the Market Operator.

The Secure System Guidelines detail the principles for determining whether a power system operated under licence from the Northern Territory Utilities Commission is in a Secure Operating State.

1. Consultation Impact Statement
2. SC R.6.1 Secure System Guidelines Revision 2_6 final
3. Secure System Guidelines Draft 3
4. Summary of Changes and Discussion
5. Submissions received from market participants

Territory Generation
Energy Developments Pty Ltd
System Control, Power and Water Corporation
Jacana Energy (late submission)

6. Market Operator consultation response to submissions

Secure System Guidelines Draft 3.1 – Preliminary Review Changes

Consultation Stage	Commencement date/time	Conclusion date/time
Submissions	Monday 3 April 2017, 0800 hrs	Friday 5 May 2017, 1400 hrs
Preliminary Review	Monday 8 May 2017, 0800 hrs	Friday 19 May 2017, 1400 hrs
Review Submissions	Monday 22 May 2017, 0800 hrs	Friday 2 June 2017, 1400 hrs
Final Review/Publication	Monday 5 June 2017, 0800 hrs	As required. Target of 2 weeks.

7. Review submissions stage
The second stage of submissions was conducted between Monday 22 May 2017, 0800 hrs and Friday 2 June 2017, 1400 hrs. During this time submissions were received from the following organisations:

Territory Generation (TGEN)

Two late submissions to the consultation were received from the following organisations:

System Control has determined to accept Jacana’s late submission on the basis that their Manager – Regulation and Industry Development was unaware of the 1400 hrs deadline, as outlined in Jacana’s justification response.

A clerical error by System Control resulted in Epuron not receiving notice of this consultation and missing the first stage of submissions entirely. System Control has accepted their submission for this consultation.

System Control is preparing responses to the above submissions and will publish the combined as soon as practicable. All comments and queries are to be directed via email to the Market Operator.

8. Final Review/Publication
The second stage of submissions (Review Submissions) for the Secure System Guidelines consultation was conducted between Monday 22 May 2017, 0800 hrs and Friday 2 June 2017, 1400 hrs. System Control has completed its final review of submissions.

The Market Operator has published online the following documents:

The Secure System Guidelines draft 3.2 contains tracked changes from the review submissions.
The Secure System Guidelines Version 4 final has identical content to draft 3.2, however, the sections are rearranged in a logical sequence, and changes from previous versions are no longer highlighted.

The Secure System Guidelines Version 4 will be in effect from Wednesday 12 July 2017 at 12:00 hours.

The consultation on Version 3 of the Secure System Guidelines is closed, due to the drafted changes throughout the consultation; the resultant Secure System Guidelines document is issued as “Secure System Guidelines - Version 4”.

The link below contains the Secure System Guidelines Version 4, which will be open to comment on an ongoing basis; please note this will be the location of the current in effect version of the Secure System Guidelines for the foreseeable future.

Secure System Guidelines

System Control intends to provide draft updates as further operational processes relating to Power System Security are reviewed. These are open to comment at all times, with a short consultation periodically (annually or as required for major changes) to formalise changes.

The National Metering Identifier (NMI) allocation Procedure has been prepared to specify the key principles to be adopted by the Network Operator for the allocation of NMIs to metering installations in the Northern Territory electricity supply industry and the key principles to be adopted by the Market Operator for the registration of those NMIs.

Consultation Impact Statement - NMI Allocation Procedure
Circulated NMI Allocation Procedure
Submissions received from Market Participants - nil
Market Operator consultation response to submissions
Approved National Meter Identifier (NMI) Allocation

The Generating Unit Tie Break Procedure provides a transparent method for dispatching generating units that have identical off-load orders or identical dispatch offer prices at the Pool Price Point.

Consultation Impact Statement - Generating Unit Tie Break Procedure
Circulated I-NTEM Generating Unit Tie Break Procedure
Submissions received from Market Participants
1. Territory Generation
Market Operator consultation response to submissions
Approved Generating Unit Tie Break Procedure

The Generator Offer Procedure specifies the principles and supporting rules, and points of clarification, for submitting daily dispatch offers to the Power System Controller.

Consultation Impact Statement - I-NTEM Generator Offer Procedure
Circulated I-NTEM Generator Offer Procedure
Submissions received from Market Participants
1. Jacana Energy
2. Territory Generation
Market Operator consultation response to submissions
Approved Generator Offer Procedure

The Market Timetable Procedure specifies the period (in days relative to the trading day) that various documents are to be provided to the Power System Controller or provided by the Power System Controller to relevant stakeholders.

Consultation Impact Statement - I-NTEM Market Timetable
Circulated I-NTEM Market Timetable Procedure
Submissions received from Market Participants - nil
Market Operator consultation response to submissions
Approved Market Timetable Procedure

Closed Consultation documents continued

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All Market Customers (Retailers) and Generators need to register with the Market Operator to participate in the Interim Northern Territory Energy Market. Below are the proposed application forms and templates.

These procedures identify the fundamental principles to be adopted by the Market Operator for the preparation and issuing of settlement statements under an agreed timetable, and the necessary information to be included in the statements during operation of the I-NTEM.

Consultation Impact Statement - Settlements Statements and Timetable Procedure
Circulated Settlements Statements and Timetable Procedure
Submissions received from Market Participants:
Market Operator consultation response to submissions
Approved - Settlement Statements and Timetable with the Market Operator

These documents bring to the attention of Market Participants, the Market Operator’s intention to use a deemed load profile as one element in determining Jacana Energy’s non-interval meter consumption, and for determining the total IES load at the Transaction Reference Point (TRP). The quantities for these Market Participants will be determined on a trading interval basis. This document fulfils a requirement in the pending System Control Technical Code for the Market Operator to consult with electricity market stakeholders on a suitable algorithm.

Consultation Impact Statement – IES Deemed Load Profile Proposal
Circulated IES Deemed Load Profile
Submissions received from Market Participants:
1. Jacana Energy
2. Territory Generation
Market Operator consultation response to submissions
Approved - Indigenous Essential Services Deemed Load Profile

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