HomeWholesale Electricity Market
Market GovernanceMarket ParticipantsInformation for ParticipantsMarket Rules EvolutionMarket DataReserve CapacityCompliance and AuditCorporateTrainingNews

Member Login

Forgot your password?

Register

Market Rules

The Wholesale Electricity Market Rules govern the operation of the Market in the South West interconnected system. The Rules cover the roles and functions of the IMO and other market governance bodies, and guide the operation of the market (including the trading and dispatch of energy, the reserve capacity mechanism and settlement).

The current Market Rules consist of the Wholesale Electricity Market Amending Rules which were gazetted on 19 September 2006, together with all gazetted amendments made by the Minister for Energy prior to 15 December 2006 and amendments made by the IMO since 15 December 2006.

Consolidated Clean Version of the Market Rules

This consolidated unofficial version of the Market Rules is provided as a clean copy for information and has no legal standing.

Market Rules Evolution Plan

The Market Rules Evolution Plan reflects the most important Market Rules evolution issues to be addressed over the coming three years. This plan incorporates a number of issues raised by various stakeholders since the commencement of the Market.

These issues have recently been prioritised by the Market Advisory Committee.  The IMO is currently developing a more detailed scoping document to outline the top issues and proposing a way forward. The IMO notes that the priorities and timelines may change during the three year period in the circumstances where new high priority issues are identified and resources have been diverted to address these issues.

The IMO will review and update the Market Rules Evolution Plan six monthly and present this to the MAC for its re-prioritisation annually. Updates will be published on this website following each review.

Market Rules – Chapters and Appendices

file type icon

WEM_Rules_Unofficial [1.2MB] - 01 September 2010

file type icon

WEM_Rules_Unofficial [1.8MB] - 01 September 2010

Chapter 1

file type icon

WEM_Rules_Unofficial_CH1 [38kB] - 20 January 2010

Chapter 2

file type icon

WEM_Rules_Unofficial_CH2 [266kB] - 01 September 2010

Chapter 3

file type icon

WEM_Rules_Unofficial_CH3 [159kB] - 01 September 2010

Chapter 4

file type icon

WEM_Rules_Unofficial_CH4 [293kB] - 01 September 2010

Chapter 5

file type icon

WEM_Rules_Unofficial_CH5 [58kB] - 06 July 2009

Chapter 6

file type icon

WEM_Rules_Unofficial_CH6 [217kB] - 01 June 2010

Chapter 7

file type icon

WEM_Rules_Unofficial_CH7 [122kB] - 01 June 2010

Chapter 8

file type icon

WEM_Rules_Unofficial_CH8 [28kB] - 20 January 2010

Chapter 9

file type icon

WEM_Rules_Unofficial_CH9 [161kB] - 01 February 2010

Chapter 10

file type icon

WEM_Rules_Unofficial_CH10 [65kB] - 01 September 2010

Chapter 11

file type icon

WEM_Rules_Unofficial_CH11 [102kB] - 01 September 2010

Appendices

file type icon

WEM_Rules_Unofficial_APPENDICES [130kB] - 01 February 2010

Amendments to the Market Rules

The following amendments to the Wholesale Electricity Market Rules have been made by the IMO:

Rule Change Synchronisation Approval, RC_2007_01

This Rule Change was made on 30 April 2007 and commenced operation on 10 May 2007. Affected clauses were 7.9.1, 7.9.2, 7.9.4, 7.9.5, 7.9.6, 7.9.8, 7.9.11 and 7.9.12

Rule Change Intermittent Generator Downward Dispatch Amendment, RC_2007_02

This Rule Change was made on 14 September 2007 and commenced operation on 1 October 2007. Affected clauses where 6.17.6 (c) , 7.7.5A and 7.7.5B

Rule Change Treatment of DSM in outage planning and PASA, RC_2007_03

This Rule Change was made on 14 September 2007 and commenced operation on 1 October 2007. Affected sections were: 3.16, 3.17, 3.18 and 3.19

Rule Change Requirements for Registration as a Market Participant, RC_2007_04

This Rule Change was made on 14 September 2007, approved by the Minister on 5 October 2007 and commenced operation on 15 October 2007. Affected clauses were: 2.28.16 and 2.28.16B

Rule Change Reserve Capacity Refund Shortfall Formula, RC_2007_05

This Rule Change was made on 18 June 2007 and commenced operation on 1 July 2007. The affected clause was 4.26.2


Rule Change STEM Timeline Flexibility, RC_2007_06


This Rule Change was made on 23 October 2007 and commenced operation on 25 October 2007. Affected clauses were: 6.4.6, 6.5A.1 and 6.12.1

Discretion of IMO to Decide Whether to Issue Warning, RC_2007_07

This Rule Change was made on 23 October 2007 and commenced operation on 20 November 2007. Affected clause was: 2.13.10

Calculation of Reserve Capacity Refund, RC_2007_08

This Rule Change was made on 23 October 2007 and commenced operation on 1 November 2007. Affected clauses were: 4.26.1, 4.26.3 and the Glossary

Intermittent Generator Resource Plan Exemption, RC_2007_10

This Rule Change was made on 17 January 2008 and commenced operation on 1 February 2008. Affected clauses were: 6.5.1A, 6.5.1C, 6.17.1, 6.17.5, 6.21.2, 7.10.1, 9.8.1 and the Glossary.

Rule Change IRCR for new meters – customer peak load diversity, RC_2007_11

This Rule Change was made on 17 August 2007 and commenced operation on 1 September 2007. The affected section was Appendix 5

Rule Change Release of STEM Submission Information, RC_2007_13

This Rule Change was made on 17 January 2008 and commenced operation on 1 March 2008. Affected clause was 10.5.1(i) ii

Rule Change Provision of Information to the IMO, RC_2007_15

This Rule Change was made on 24 September 2007 and commenced operation on 4 October 2007. Affected clauses were: 3.21.7, 7.13.1, and 7.13.1A.

Rule Change Outage Notification to the IMO RC_2007_16

This Rule Change was made on 24 September 2007 and commenced operation on 4 October 2007. Affected clauses were: 3.18.6, 3.21.4, 3.21.5, 3.21.6, 6.3A.2, 7.3.4 and 7.13.1.

Amendment to Business Day Convention, RC_2007_17

This Rule Change was made on 30 October 2007 and commenced operation on 1 November 2007. Affected clauses were: 1.4.1 and the Glossary.

Reserve Capacity Testing Payments, RC_2007_18

This Rule Change was made on 17 January 2008 and commenced operation on 1 February 2008. Affected clauses were: 6.17.6 and 7.13.1.

Intermittent Generator Resource Plan Exemption, RC_2007_19

This Rule Change was made on 17 January 2008 and commenced operation on 1 February 2008. Affected clause was: 4.28.8.

Correction of References and Minor Drafting Errors , RC_2007_20

This Rule Change was made on 30 October 2007 and commenced operation on 1 November 2007. Affected clauses were: 2.37.1, 3.19.1, 3.21.6, 4.24.13, 6.5.1, and the Glossary.

Stem Notification of Plant Availability, RC_2007_21

This Rule Change was made on 19 November 2007 and commenced operation on 1 December 2007. Affected clauses was: 4.12.6

Network Control Service Procurement Requirements, RC_2007_22

This Rule Change was made on 19 November 2007 and commenced operation on 1 December 2007. Affected clauses were: 5.2.1 and 5.2.2

Maximum Reserve Capacity Price Methodology and Review, RC_2007_24

This Rule Change was made on 19 November 2007 and commenced operation on 18 December 2007. Affected clause was: 4.16.5.

Alternative Maximum STEM Price - Monthly Adjustments, RC_2007_26

This Rule Change was made on 21 December 2007 and commenced operation on 21 December 2007. Affected clause was: 6.20.3.

SWIS Reliability Planning Criteria, RC_2007_28

This Rule Change was made on 9 April 2008 and commenced operation on 10 April 2008. Affected clause was: 4.5.9.

High Risk And Emergency Operating States Definition, RC_2007_31

This Rule Change was made on 1 May 2008 and commenced operation on 2 May 2008. Affected clauses were: 3.4.1 and 3.5.1.

Maximum Refund, RC_2007_36

This Rule Change was made on 1 May 2008 and commenced operation on 01 June 2008. Affected clauses were: 4.26.1, 4.26.1A, 4.26.1B, 4.26.2, 4.26.3, and the Glossary.

Capacity Test Notification To The IMO, RC_2008_01

This Rule Change was made on 23 May 2008 and commenced operation on 26 May 2008. Affected clause was: 4.25.9.

ST PASA Fuel Supply Issues Notification, RC_2008_02

This Rule Change was made on 23 May 2008 and commenced operation on 26 May 2008. Affected clauses was: 3.17.9.

Provision of information for ST and MT PASA, RC_2008_03

This Rule Change was made on 23 May 2008 and commenced operation on 26 May 2008. Affected clauses were: 3.16.4 and 3.17.5.

Standing Data Compliance Monitoring, RC_2008_04

This Rule Change was made on 23 May 2008 and commenced operation on 24 June 2008. Affected clauses were: 2.13.9 and 2.34.12

Calculation of MCAP, RC_2008_05

This Rule Change was made on 12 February 2008 and commenced operation on 20 March 2008. Affected clauses were: 6.14.2 , 6.14.3 and 6.14.4.

Reduction of Capacity Credits, RC_2008_06

This Rule Change was made on 3 July 2008 and commenced operation on 10 July 2008. Affected clauses were: 4.25.4A, 4.25.4B, 4.25.4C and 4.25.4D.

Energy Price Limits Methodology, RC_2008_07

This Rule Change was made on 8 July 2008 and commenced operation on 1 August 2008. Affected clauses were: 6.18.1, 6.18.2, 6.18.3, 6.20.1, 6.20.5, 6.20.7, 6.20.8, 10.5.1, the Glossary and Appendix 1.

Indisputable Market Prices, RC_2008_08

This Rule Change was made on 3 July 2008 and commenced operation on 10 July 2008. Affected clauses were: 6.4.7, 6.14.1A, 6.14.7 and 7.13.1B

NTDL New and Overnight Loads, RC_2008_09

This Rule Change was made on 2 April 2008 and commenced operation on 1 May 2008. Affected clauses were: 4.28.9 , Appendix 5 and Appendix 5A.

Capacity Credits and Facility Aggregation, RC_2008_10

This Rule Change was made on 6 June 2008 and commenced operation on 1 July 2008. Affected clauses were: 2.30.1A, 2.30.4, 2.30.5 and 4.23A.4.

Maximum Reserve Capacity Price , RC_2008_11

This Rule Change was made on 8 July 2008 and commenced operation on 6 August 2008. Affected clauses were: .26.1, 2.26.3, 2.26.4, 4.1.19, 4.16.3, 4.16.4, 4.16.5, 4.16.7, 4.16.8, 4.16.9, 4.22.3, and Appendix 4.

Dispatch Support Ancillary Services, RC_2008_12

This Rule Change was made on 18 March 2008 and commenced operation on 20 April 2008. Affected clauses were: 2.23.12, 3.11.8, 3.11.8A,  3.11.8B,  3.11.8C,  3.11.8D and 3.13.1.

Economic Regulation Authority’s Budget, RC_2008_13

This Rule Change was made on 15 April 2008 and commenced operation on 15 May 2008. Affected clauses were: 2.24.5 and 2.24.5A.

Information from Network Operators, RC_2008_14

This Rule Change was made on 20 October 2008 and commenced operation on 1 November 2008. Affected clauses were: 4.11.5 and 10.2.2.

Delay of Resource Plan Submissions, RC_2008_15

This Rule Change was made on 18 August 2008 and commenced operation on 20 August 2008. Affected clauses were: 6.5.1 and 6.5A.1.

Commissioning Tests and the Reserve Capacity Mechanism, RC_2008_17

This Rule Change was made on 18 August 2008 and commenced operation on 1 September 2008. Affected clauses were: 3.21A.7, 3.21A.7A (new), 4.1.26, 4.10.1, 4.27.10, 4.27.10A (new), 4.27.11, 4.27.11A (new), 4.27.11B (new), 4.27.11C (new), 4.27.11D (new), 4.27.12, 6.5.1A and 6.5.1C.

Delegation by the IMO, RC_2008_18

This Rule Change was made on 20 October 2008 and commenced operation on 18 November 2008. Affected clauses were: 2.1.3 and 2.2.3.

Correction of References and Minor Drafting Errors, RC_2008_19

This Rule Change was made on 23 June 2008 and commenced operation on 1 August 2008. Affected clauses were: 2.13.8 (b), 4.16.4 (e), 4.26.2, 6.14.4 (b), 7.7.5A (b), 9.10.1 and Appendix 5

Demand Side Management – Operational Issues, RC_2008_20

This Rule Change was made on 24 November 2008 and commenced operation on 1 March 2009 and 1 October 2009 with different rules commencing on different dates as per the Final Report. Affected clauses were: 2.29.5, 2.29.8A, 2.29.8B, 2.29.9A, 2.29.9B, 2.29.9C, 4.8.3, 4.10.1, 4.11.1, 4.11.4, 4.11.4A, 4.12.8, 4.14.1, 4.25.1, 4.25.2, 4.25.3B, 4.25.4, 4.25.4E, 4.25.4F, 4.25.9, 4.25A.1, 4.25A.2, 4.25A.3, 4.25A.4, 4.25A.5, 4.26.1, 4.26.1C, 4.26.2, 4.26.2C, 4.26.2D, 4.26.2E, 4.26.3, 4.26.3A, 6.17.6, 7.7.5D, 7.7.10, 7.13.1 and the Glossary.

Local Black Start Procedures, RC_2008_21

This Rule Change was made on 20 October 2008 and commenced operation on 1 November 2008. Affected clauses were: 3.7.3, 3.7.4, 3.7.5, 3.7.6 (all new).

LNG to be added to Liquid Fuel Definition, RC_2008_23

This Rule Change was made on 20 October 2008 and commenced operation on 1 November 2008. Affected clauses were: Glossary (Chapter 11).

Commissioning Tests for Intermittent Generators, RC_2008_24

This Rule Change was made on 22 December 2008 and commenced operation on 1 February 2009. Affected clauses were: 4.26.1 and 4.26.1A.

Intermittent Load Refund Maximum, RC_2008_25

This Rule Change was made on 22 December 2008 and commenced operation on 1 February 2009. Affected clause was: 4.28A.1(b).

Consistency between clauses 4.12.1 and 4.26.2 of the Market Rules, RC_2008_26

This Rule Change was made on 22 December 2008 and commenced operation on 1 January 2009. The affected clause was: 4.12.1.

Funding of Supplementary Reserve Capacity, RC_2008_27

This Rule Change was made on 22 December 2008 and commenced operation on 1 January 2009. Affected clauses were: 4.28.3 and 4.28.4.

Eligible Services for Supplementary Reserve Capacity, RC_2008_28

This Rule Change was made on 16 January 2009 and commenced operation on 1 February 2009. Affected clauses were: 4.24.3 and 4.24.15.

Change to Curtailable Load de-registration timeframe, RC_2008_29

This Rule Change was made on 16 January 2009 and commenced operation on 1 February 2009. Affected clauses were: 2.33.4(d).

Reserve Capacity Security, RC_2008_30

This Rule Change was made on 16 January 2009 and commenced operation on 16 February 2009. Affected clauses were: 4.13.1, 4.13.10, 4.13.10A, 4.13.11, 4.13.11A, 4.13.11B

Calculation of IRCR , RC_2008_32

This Rule Change was made on 23 March 2009 and commenced operation on 01 May 2009. Affected clauses were: Clause 8.6.1 and Appendix 5.

Compliance Standard of Performance and Reporting, RC_2008_33

This Rule Change was made on 16 January 2009 and commenced operation on 16 February 2009. Affected clauses were: 2.12, 2.14.5A, 2.14.6A, 2.14.6B, 2.14.7, 2.14.8, 2.14.9.

Least cost determination of ancillary service contracts, RC_2008_38

This Rule Change was made on 12 May 2009 and commenced operation on 01 June 2009. Affected clauses were: 3.11.8E (new) and 6.17.6.

Notification of synchronisation and desynchronisation, RC_2008_40

This Rule Change was made on 16 January 2009 and commenced operation on 1 February 2009. Affected clauses were: Clauses 7.9.1 and 7.9.5, new clause 7.9.1A.

Correction of Minor and Typographical Errors , RC_2009_01

This Rule Change was made on 20 February 2009 and commenced operation on 27 April 2009. Affected clauses were: 1.4.1(a), 2.5.7(f)(iii)(1) and 4.11.5.

Update to Protected Provisions, RC_2009_02

This Rule Change was made on 20 February 2009 and commenced operation on 27 April 2009. Affected clauses were: 2.8.13.

Provision of Intermittent Generator Forecast Information, RC_2009_03

This Rule Change was made on 19 June 2009 and commenced operation on 1 July 2009. Affected clauses were: 7.2.5.

Approval of proposed new, amended, and replacement Market Procedures , RC_2009_04

This Rule Change was made on 20 March 2009 and commenced operation on 27 April 2009. Affected clauses were: 2.10.6, 2.10.13, 2.10.14, 2.10.15, 2.10.16 and Glossary.

Confidentiality of Accepted Outages, RC_2009_05

This Rule Change was made on 7 August 2009 and commenced operation on 17 August 2009.  Affected clauses were: 3.18.4 and 3.18.5D.

Under Construction for the Reserve Capacity Mechanism, RC_2009_07

This Rule Change was made on 17 July 2009 and commenced operation on 1 November 2009.  Affected clauses were: 4.2.7, 4.14.6 and Appendix 3.

Updates to Commissioning Provisions, RC_2009_08

This Rule Change was made on 29 January 2010. The first set of Amending Rules commenced operation on 1 June 2010. Affected clauses were: 3.21A.2, 3.21A.3, 3.21A.4, 3.21A.7, 4.1.26, 4.12.6, 4.26.1A, 7.9.4 and the Glossary. The second set of Amending Rules will commence operation on 1 January 2011.

Exemption from real time compliance monitoring for certain commisioning units , RC_2009_09

This Rule Change was made on 17 March 2009 and commenced operation on 18 March 2009. Affected clauses were: Clauses 7.10.5 and new clause 7.10.5A.

Early Certified Reserve Capacity, RC_2009_10

This Rule Change was made on 15 September 2009 and commenced operation on 1 February 2010. Affected clauses were: 4.1.1A, 4.5.2, 4.9.3, 4.11.1, 4.12.6, 4.15.1, 4.15.2, 4.28C (new), 4.28C.1 (new), 4.28C.2 (new), 4.28C.3 (new), 4.28C.4 (new), 4.28C.5 (new), 4.28C.6 (new), 4.28C.7 (new), 4.28C.8 (new), 4.28C.9 (new), 4.28C.10 (new), 4.28C.11 (new), 4.28C.12 (new), 4.28C.13 (new), 4.28C.14 (new), 4.28C.15 (new), Chapter 11 and Appendix 3.

Changing the Window of Entry into the Reserve Capacity Market  RC_2009_11

This Rule Change was made on 7 August 2009 and commenced operation on 1 December 2009.  Affected clauses were: amended clauses 4.1.26 and 4.11.1

Definition of a Power System Operating Procedure , RC_2009_12

This Rule Change was made on 16 April 2009 and commenced operation on 17 April 2009. Affected clauses were: Glossary "Market Procedure" and "Power System Operation Procedure".

Timing flexibility for transfer of information from System Management, RC_2009_13

This Rule Change was made on 17 June 2009 and commenced operation on 1 August 2009.  Affected clauses were: amended clauses 7.2.3C and 7.3.6.

Removal of ERA Time Limit to Publish Investigation Results, RC_2009_15

This Rule Change was made on 1 September 2009 and commenced operation on 2 September 2009.  Affected clauses were: amended clause 2.16.9F and new clauses 2.16.9FA and 2.16.9FB

Correction of Minor and Typographical Errors, RC_2009_16

This Rule Change was made on 5 June 2009 and commenced operation on 6 July 2009. Affected clauses were: amended clauses 2.7.4, 2.7.5, 2.7.8 (c), 2.28.4, 2.31.1, 2.31.5 (b), 2.31.6 (b), 2.31.6 (c), 2.31.12, 2.31.13 (k), 2.31.21 (a), 2.34.8, 2.37.8, 2.41.2, 2.41.3, 4.27.10, 5.2.1 (c), 5.2.1 (f), 5.2.7, 5.4.2, 5.4.14 (a), 5.5.3 (f), 9.23.1, 9.23.1 (i), 9.23.1 (l), 9.23.5, 9.23.5 (b), 9.23.6 (b), 10.5.1 (e) (iii) and the Glossary of the Market Rules.

Transparency of Capacity Credit Allocation, RC_2009_17

This Rule Change was made on 18 September 2009 and commenced operation on 1 March 2010. Affected clause was: Clause 10.5.1(f)(iv).

Reserve Capacity Refund price calculation, RC_2009_18

This Rule Change was made on 18 September 2009 and commenced operation on 1 October 2009. Affected clause was: Clause 4.26.1.

Reserve Capacity Performance Monitoring, RC_2009_19

This Rule Change was made on 16 October 2009 and commenced operation on 1 November 2009. Affected clause was: 4.72.2.

Opportunistic Maintenance outage approval timeframe, RC_2009_20

This Rule Change was made on 18 September 2009 and commenced operation on 1 November 2009. Affected clause was: 3.19.2(a).

Treatment of Negative MCAP on the settlement of Ancillary Services, RC_2009_21

This Rule Change was made on 16 October 2009 and commenced operation on 01 February 2010. Affected clause was 9.9.2.

System Management Review Period Budget Coverage Amendment, RC_2009_23

This Rule Change was made on 30 October 2009 and commenced operation on 30 November 2009. Affected clauses were: amended clauses 2.23.1, 2.23.2, 2.23.3, 2.23.5, 2.23.7, 2.23.12, 3.11.11, 3.11.14, 3.13.1, 3.13.3, 3.13.3A (new), 3.13.3B (new), 3.13.3C (new) and 3.22.1.

Market Procedure Change Process Timelines, RC_2009_24

This Rule Change was made on 18 August 2009 and commenced operation on 1 October 2009. Affected clauses were: New clauses 2.10.4 and 2.10.11.

Heads of Power for Market Procedures, RC_2009_26

This Rule Change was made on 18 August 2009 and commenced operation on 24 August 2009. Affected clauses were: New clauses 3.11.15, 4.14.11, 7.13.3 and 10.2.7.

Market Advisory Committee Consitution and Operating Practice, RC_2009_28

This Rule Change was made on 7 December 2009 and commenced operation on 15 January 2010. Affected clauses were: Clause 2.3.1, 2.3.2, 2.3.5, 2.3.10, 2.3.14, 2.3.15, 2.3.17, 2.7.4, 2.7.5, 2.7.7, 2.10.8, 2.10.9, 2.10.13 the glossary and new clause 2.3.1A.

Determination of Capacity Shortfalls for Curtailable Loads, RC_2009_29

This Rule Change was made on 29 September 2009 and commenced operation on 1 October 2009. Affected clause was: Clause 4.26.2D.

Correction of Minor and Typographical Errors, RC_2009_30

This Rule Change was made on 19 November 2009 and commenced operation on 18 December 2009. Affected clauses were: 1.4.1, 1.5.1, 2.1.2, 2.5.7, 2.5.14, 2.5.15, 2.7.6, 2.7.8, 2.8.9, 2.13.10, 2.14.1, 2.14.3, 2.16.2, 2.28.16B, 2.29.9, 2.30.5, 2.30B.3, 2.30B.5, 2.30B.9, 2.30B.11, 2.30C.1, 2.31.3, 2.32.4(b)(i), 2.34.7, 3.10.2(a)(i), 3.18.11A(a), 3.18.11A(b), 4.10.1(e), 4.11.1(a), 3.18.11(aA), 3.19.6(a), 4.12.6(b), 6.3A.2, 6.5.1(b), 8.4.1, 8.4.2, 8.4.3, 8.4.4, 8.4.5, 8.5.2, 8.6.1, 8.6.2, 9.3.4, 9.16.2, 9.9.1, 9.23.4(b), 9.24.1, 9.24.2, 10.5.1, the Glossary, Appendix 4A and Appendix 5.

Energy Price Limits Methodology and Consultation Process, RC_2009_35

This Rule Change was made on 6 May 2010 and commenced on 1 June 2010. Affected clauses were: 6.20.2, 6.20.7, 6.20.9, 6.20.9A (new) and 6.20.10.

Provision of Load Following Ancillary Service, RC_2009_40

This Rule Change was made on 14 April 2010 and commenced on 1 May 2010. Affected clause was 3.9.1.

Removal of Appendix 8- "Top-up and Spill Rules", RC_2009_41

This Rule Change was made on 17 December 2009 and commenced on the 20 January 2010. Affected clauses were: 1.8.2, 1.9.7, 1.9.8, 1.9.9, 1.9.10 and Appendix 8.

Annual Review of Margin Values, RC_2010_01

This Rule Change was made on 25 June 2010 and commenced on 1 July 2010. Affected clause was 3.13.3A.

Correction of Chapter 4 minor, typographical and manifest errors, RC_2010_02

This Rule Change was made on 4 June 2010 and commenced on 1 July 2010. Affected clauses were: 4.1.2, 4.1.27, 4.13.5(a), 4.13.8(c), 4.13.10(c), 4.13.11, 4.23A.3(c), 4.24.1, 4.25.3A, 4.25.4(b), 4.25.4B, 4.25.4F, 4.25.8(b), 4.25.9, 4.25.12, 4.26.2C(d), 4.27.5, 4.27.6, 4.27.7, 4.27.8, 4.27.9, 4.27.10A, 4.27.11, 4.27.11A, 4.27.11D, 4.28C.2, 4.28C.4, 4.28C.7, 4.28C.8, 4.28C.9 and 4.28C.12.

Calculation of Net STEM Shortfall, RC_2010_03

This Rule Change was made on 30 March 2010 and commenced on 1 April 2010. Affected clauses were: 4.26.2, 4.26.2E, 4.26.2F (new) and 4.26.3.

Updates to Reserve Capacity Obligation Provisions, RC_2010_16

This Rule Change was made on 29 July 2010 and commenced on 1 September 2010. Affected clauses were: 3.21A.7A, 4.1.26 and 4.26.1A.

Change of Review Board name, RC_2010_18

This Rule Change was made on 19 July 2010 and commenced on 1 September 2010. Affected clauses were: 2.8.1, 2.8.2, 2.11.1, 2.11.2, 2.13.17, 2.13.18, 2.13.22, 2.13.23, 2.13.24, 2.13.26, 2.13.28, 2.15.3(f), 2.16.9G, 2.16.9H, 2.17.3, 2.31.13(e), 2.32.1, 2.32.5(b), 2.32.6, 2.32.7, 10.2.2 and 10.5.1(r) and the Glossary.