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Procedures

Current versions of the Wholesale Electricity Market (WEM) market procedures can be found on this page.

Administrative market procedures

Name

Description

Related Rules

Latest update

Information Confidentiality

This Procedure outlines setting the confidentiality status for market-related information and documents produced or exchanged under the Market Rules or Procedures.

2.37.4, 3.2.4, 7.13.1, 10.2.1, 10.2.7

30 November 2015

IT Interface Procedure –System Overview and Requirements

This Procedure provides details of the various IT interfaces for participating in the WEM.

2.36.5

18 April 2017

Monitoring and Reporting Protocol

This Procedure sets out how AEMO will implement its obligations under the WEM Rules to support the Economic Regulation Authority (ERA) in monitoring Rule Participants’ behaviour for compliance with the WEM Rules and the Market Procedures developed by AEMO.

2.15.6A, 2.15.6B, 2.15.6C

22 May 2019

Notices and Communications

This Procedure documents the method by which notices and communications required under, contemplated by or relating to, the WEM Rules are to be given to or by AEMO.

1.6.2

01 October 2017

Market operations market procedures

Name

Description

Related Rules

Latest update

Consumption Deviation Applications
This Procedure covers the process and information required for a Market Participant to submit a Consumption Deviation Application, and the process AEMO must follow when assessing an application.
4.26.2CB, 4.26.2CC, 4.26.2CD, 4.26.2CF, 4.26.2CG 
1 October 2019

Capacity Credit Allocation Procedure

This Procedure covers the process and information required for a Market Participant to make a Capacity Credit Allocation Submission.

9.4.3, 9.4.17, 9.4.18

1 June 2019

Facility Registration, De-Registration and Transfer Procedure

This Procedure covers the process for a Rule Participant to register, de-register or transfer its Facilities and the process to be applied by AEMO in processing applications.

2.31.23, 2.30.11, 2.30A.6

18 April 2017

Intermittent Load Refund Procedure

This procedure outlines the process by which Intermittent Loads will be subject to Reserve Capacity Refunds.

4.28A.3

18 April 2017

Determining Loss Factors

This Procedure covers the process for determining Loss Factors.

2.27.15, 2.27.17, 3.2.6, 3.2.7

1 July 2019

Meter Data Submission Procedure

This Procedure covers how Meter Data Agents submit Meter Data to AEMO, including the timing and format of submissions.

8.6.2

30 November 2015

Rule Participant Registration and De-Registration Procedure

This Procedure outlines the process for new participant registration and existing Market Participant de-registration.

2.31.23

18 April 2017

Prudential Requirements Procedure

This Procedure outlines how AEMO will manage liabilities that arise in the Settlement process.

2.37.4, 2.37.7, 2.37.8, 2.38.3, 2.40.1, 2.41.5, 2.42.4, 2.43.1

9 December 2019

Settlement Procedure

This Procedure outlines the financial settlement of trading through the WEM.

9.2.1

1 July 2019

Balancing Facility Requirements Procedure

This Procedure outlines the technical communication criteria that a Balancing Facility, or a type of Balancing Facility must meet.

3.2.2, 7A.1.6

1 July 2019

Balancing Market Forecasts Procedure

This Procedure outlines the information requirements from System Management to enable the Forecast Balancing Merit Order and Balancing Forecast to be prepared.

7A.3.3, 7A.3.4, 7A.3.15, 7A.3.19, 7A.3.20, 7B.3.3

1 July 2019

Determination of DSM Dispatch Payment Tranches and Adjustments
This Procedure documents the process AEMO has to follow to determine the Tranche 2 and Tranche 3 DSM Dispatch Payments that will be paid to DSM Providers for the decrease in energy consumption (in MWh) when a DSP is dispatched. Further, it outlines the process AEMO has to follow to adjust the calculation of the DSM Dispatch Payments in case the number of DSM Capacity Credits assigned to a DSP changes during a Capacity Year
6.17.6B, 6.17.6E, 6.17.6F
1 July 2019
Individual Reserve Capacity Requirements This Procedure documents the processes to be followed by:
a) Market Customers in providing information relating to their loads and demand side management arrangements for the determination of their IRCR on an annual basis and/or on a monthly basis.
b) AEMO in requesting information from Market Customers in respect of determination of the yearly IRCR and in calculating and publishing the Monthly IRCR.
4.28.12 01 October 2019
Power system operation procedures
Name Description Related Rules  Latest Update

Ancillary Services
(pdf, 443 KB)


This Procedure sets out the procedure to be followed: by AEMO when determining Ancillary Service Requirements and entering into Ancillary Service Contracts; any technical and communication criteria that an LFAS Facility, or a type of LFAS Facility, must meet, and the procedure to be followed by AEMO, Market Participants, Ancillary Service Providers and Network Operators where the WEM Rules require Ancillary Services to be provided 3.2.2, 3.3.3, 3.11.14, 3.11.15, 7B.1.2  1 July 2019

Commissioning Tests
(pdf, 78 KB)


This Procedure sets out the requirements that System Management and Market Participants must follow when planning and conducting tests of a generating system to verify its output. 3.21A.15  1 June 2019

Communications and Control Systems
(pdf, 387 KB)


This Procedure sets out the communications and control system requirements necessary to support the dispatch process and enable AEMO to remotely monitor the performance of a Network.   2.35.4, 2.36A.5  1 July 2019

Dispatch
(pdf, 570 KB)


This Procedure sets out the processes that Rule Participants must follow to meet dispatch requirements specified in the WEM Rules.

3.21B.5, 3.21B.8, 4.11.1, 7.2.5, 7.6.10, 7.6.10A, 7.6.13, 7.6A.2, 7.6A.7, 7.6A.8, 7.7.4A, 7.7.5A, 7.7.5B, 7.7.5C, 7.7.6, 7.7.9, 7.9.19, 7.13.1, 7.13.1C, 7.13.3, 7.13.5, 7A.3.7, 7A.3.7A, 7A.3.15, 7B.1.4

1 July 2019

Facility Outages
(pdf, 494 KB)


This Procedure sets out the processes that Rule Participants must follow when conducting outage planning for a Facility, when conducting final approval of outages, when determining and reporting Forced Outages and Consequential Outages, and that AEMO must follow when calculating Planned Outage and Forced Outage rates for the purposes of assigning Certified Reserve Capacity.

3.18.15, 3.18.21, 3.19.10, 3.19.14, 3.21.12, 4.11.1  7 January 2019
IMS Interface
(pdf, 480 KB)

 

This Procedure sets out the reasonable arrangement by which Network Operators and AEMO must provide each other with information under WEM Rules. The proposed amendments relocate content to the Power System Operation Procedure: Communications and Control Systems. 2.13.6A, 2.15.6A, 2.28.3A, 2.36A.1, 2.36A.5, 3.2.2, 3.2.4, 7.13.1, 7A.3.7, 7A.3.7A 1 July 2019

Medium Term PASA
(pdf, 90 KB)

This Procedure sets out the procedures System Management and Rule Participants must follow in the preparation and publishing of the Medium Term PASA. 3.16.4, 3.16.7, 3.16.8A, 3.16.10 1 June 2019
Network Modelling Data
(pdf, 300 KB)

 

This Procedure specifies the information that a Network Operator must provide to System Management for each of its Networks, the processes to be followed by Network Operators and AEMO, and the technical and communication criteria that must be met. 3.2.2, 3.2.4, 3.2.6, 3.2.7, 3.3.3, 3.4.9, 3.5.11 13 October 2017

Power System Security
(pdf, 413 KB)


This Procedure sets out the processes AEMO must follow to maintain Equipment Limit information, AEMO and Network Operators must follow when determining Security Limits and maintaining Security Limit information, AEMO must follow when establishing and modifying the Technical Envelope and AEMO must follow to ensure the SWIS operates according to the Technical Envelope applicable to each SWIS Operating State, and guidelines describing matters AEMO will consider when determining the SWIS Operating State.   3.2.2, 3.2.4, 3.2.6, 3.2.7, 3.3.3, 3.4.9, 3.5.11  1 July 2019

Short Term PASA
(pdf, 92 KB)

This Procedure sets out the procedures that System Management and Market Participants must follow in the preparation of the Short Term PASA. 3.17.10  1 June 2019 
Tolerance Ranges
(pdf, 183 KB)

 

This Procedure documents the process for determining and reviewing the annual Tolerance Range and any Facility Tolerance Ranges.   2.13.6K, 3.2.2, 3.3.3  21 April 2018 
Reserve capacity market procedures

Name

Description

Related Rules

Latest update

Certification of Reserve Capacity

This Procedure documents the process Market Participants must follow in applying for Certified Reserve Capacity or Early Certified Reserve Capacity, and AEMO must follow in processing those applications, including to assign Certified Reserve Capacity, set Reserve Capacity Obligation Quantities, and approve Early Certified Reserve Capacity.

4.9.3, 4.9.10, 4.11.1, 4.28C.15

1 July 2019

Declaration of Bilateral Trades and the Reserve Capacity Auction

This Procedure covers how Rule Participants propose the level of Certified Reserve Capacity intended to be traded bilaterally and how AEMO processes the declaration and assigns Certified Reserve Capacity.

3.2.6, 4.14.11, 4.17.9

30 Nov 2015

Reserve Capacity Performance Monitoring

This Procedure details the requirements and processes for determining the performance of the market with regard to Reserve Capacity.

4.27.5, 4.27.12

01 Oct 2017

Reserve Capacity Security

This Procedure outlines how Market Participants holding Certified Reserve Capacity must submit Reserve Capacity Security.

3.2.2, 3.3.3, 4.11.1, 4.13.4, 4.13.8, 4.13.10C, 4.25A.1

30 Nov 2015

Reserve Capacity Testing

This Procedure details the Reserve Capacity Testing steps.

4.11.1, 4.25A.1, 4.25.14

18 Apr 2017

Treatment of Small Generators

This Procedure describes the process for assigning Capacity Credits to New Small Generators.

4.28B.9

30 Nov 2015

Undertaking the LT PASA and conducting a review of the Planning Criterion

This Procedure documents the process by which AEMO conducts the Long Term PASA and the review required under clause 4.5.15 of the WEM Rules.

4.5.14, 4.5.16

01 Oct 2017

Determination of Expected DSM Dispatch Quantity and DSM Activation Price This Procedure documents the process by which AEMO calculates the Expected DSM Dispatch Quantity and the DSM Activation Price. 3.2.6, 4.5.14, 4.5.14B, 4.5.14C 09 Jun 2017 

Supplementary Reserve Capacity

This Procedure describes the process that AEMO and System Management must follow in acquiring Eligible Services, entering into the Supplementary Capacity Contract, and determining the Maximum Contract Value per hour of availability for any Supplementary Capacity Contract.

4.24.18

18 Apr 2017

Other Market Procedures

Economic Regulation Authority Market Procedures can be found here.

Rule Change Panel Market Procedures can be found here, with details of changes to those procedures available here.

 
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