Market Rules

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 – Chapters and Appendices

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

Chapter 7

Chapter 8

Chapter 9

Chapter 10

Chapter 11

Appendices

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, 1 October 2009, 1 October 2010 and 1 October 2011 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 and commenced operation on 1 June 2010 and 1 January 2011 with different rules commencing on different dates as per the Final Report. Affected clauses were: 3.21A.2, 3.21A.3, 3.21A.4, 3.21A.7, 3.21A.16 (new), 4.1.26, 4.12.6, 4.26.1A, 7.9.4, 10.6.1 and the Glossary.

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.

The use of tolerance levels by System Management, RC_2009_22

This Rule Change was made on 5 July 2010 and commenced on 1 December 2010. Affected clauses were: 2.13.6, new 2.13.6A, new 2.13.6B, new 2.13.6C, new 2.13.6D, new 2.13.6E, new 2.13.6F, new 2.13.6G, new 2.13.6H, new 2.13.6I, new 2.13.6J, new 2.13.6K, 2.13.7,  2.13.8, 7.10.5, new 7.10.5B , 7.10.7, 10.5.1 and Chapter 11.

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.

Equipment Tests, RC_2009_37

This Rule Change was made on 17 September 2010 and commenced operation on 1 February 2011. Affected clauses were: Clauses 3.21AA (new), 4.11.1, 7.10.2, 7.10.5A, 7.12.1, 7.13.1 and the Glossary.

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.

Settlement in Default Situations, RC_2010_04

This Rule Change was made on 17 September 2010 and commenced on 1 October 2010. Affected clauses were: 6.16.1, 9.3.3, 9.24.3, 9.24.5 and 9.24.9.

Application of Spinning Reserve to Aggregated Facilities, RC_2010_06

This Rule Change was made on 8 October 2010 and commenced on 1 April 2011. Affected clauses were: 2.30.6, 2.30.7, 2.30.7A, 3.9.2 and Appendix 2.

Bilateral Submission Window, RC_2010_10

This Rule Change was made on 17 September 2010 and commenced on 1 October 2010. Affected clauses were: 6.4.6.

Removal of Network Control Services Expression of Interest and Tender Process from the Market Rules, RC_2010_11

This Rule Change was made on 6 April 2011 and commenced on 1 July 2011. Affected clauses were: 2.1.2, 2.8.13, 2.17.1, 2.22.1, 2.37.6, 2.37.7, 2.37.8, 2.38.1, 2.38.2, 2.38.3, 2.38.4, 2.38.5, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.2.1, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.3.1, 5.3.2, 5.3.3, 5.3.4, 5.3.5, 5.3.6, 5.3.7, 5.3.8, 5.3.9, 5.4, 5.4.1, 5.4.2, 5.4.3, 5.4.4, 5.4.5, 5.4.6, 5.4.7, 5.4.8, 5.4.9, 5.4.10, 5.4.11, 5.4.12, 5.4.13, 5.4.14, 5.5, 5.5.1, 5.5.2, 5.5.3, 5.5.4, 5.6, 5.6.1, 5.6.2, 5.6.3, 5.7.1, 5.7.2, 5.8, 5.8.1, 5.8.2, 5.8.3, 5.8.4, 5.8.5, 5.8.6, 5.8.7, 5.8.8, 5.9.1, 6.17.6, 7.1.1, 7.6.6, 7.13.1, 9.12, 9.12.1, 9.12.2, 9.14.1, 9.14.2, 9.18.3, 9.24.3A, the Glossary and Appendix 1 with the addition of new clauses 5.2A.1, 5.2A.2, 5.3A, 5.3A.1, 5.3A.2, 5.3A.3, 5.3A.4, 5.9.2, 5.9.3, 7.6.1A and 10.5.1(vD).

Required Level and Reserve Capacity Security, RC_2010_12

This Rule Change was made on 19 August 2011 and commenced on 1 October 2011. Affected clauses were: 2.8.13, 4.1.21, 4.1.27, 4.9.9, 4.10.3, 4.11.2A, 4.11.3B, 4.13.1, 4.13.1A, 4.13.1B, 4.13.1C, 4.13.2, 4.13.2A, 4.13.2B, 4.13.2C, 4.13.3, 4.13.5, 4.13.8, 4.13.10, 4.13.10A, 4.13.10B, 4.13.10C, 4.13.11, 4.13.11A, 4.13.11B, 4.13.12, 4.13.13, 4.13.14, 4.20.1, 4.25.1, 4.25.2, 4.25.3B, 4.25.4B, 4.26.1, 4.26.1A, 4.28.4, 4.28C.8, 4.28C.8A, 4.28C.12, 4.28C.12A and the Glossary.

Certification of Reserve Capacity , RC_2010_14

This Rule Change was made on 1 July 2011 and commenced on 8 July 2011 and 1 January 2012. Affected clauses were 2.24.1, 2.24.2, 4.1.8, 4.1.9, 4.1.10, 4.1.11, 4.1.12, 4.1.13, 4.1.14, 4.1.16, 4.1.17, 4.1.18, 4.1.20, 4.1.21, (new) 4.1.21A, 4.2.7, 4.4.1, 4.9.3, 4.9.5, 4.9.9, (new) 4.9.9A, 4.10.1, 4.10.2, 4.10.3. (new) 4.10.4, 4.11.1, 4.11.2, 4.11.3A, 4.11.5, (new) 4.11.10, 4.15.1, 4.20.1, 4.20.5A, 4.27.10, 4.27.11A, 4.28C.1, 4.28C.2, 10.5.1 and the Glossary.

MAC Membership Review, RC_2010_15

This Rule Change was made on 26 October 2010 and commenced on 1 November 2010. Affected clauses were: 2.3.5, 2.3.5A (new) and 2.3.13.

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.

Settlement Cycle Timeline, RC_2010_19

This Rule Change was made on 23 March 2011 and commenced on 1 May 2011. Affected clauses were: 9.16.3, new clause 9.16.3A and the Glossary.

Market Fees, RC_2010_20

This Rule Change was made on 1 April 2011 and commenced on 1 May 2011. Affected clauses were: 2.23.9, 2.23.11, 2.24.2 and 9.16.3 and new clauses 2.24.2A, 2.24.2B.

Excluding Providing Price Related Standing Data to System Management, RC_2010_21

This Rule Change was made on 8 April 2011 and commenced on 1 May 2011. Affected clauses were: 2.34.1, 2.34.12 and 7.7.4A.

Partial Commissioning of Intermittent Generators, RC_2010_22

This Rule Change was made on 22 July 2011 and commenced on 1 October 2011. Affected clauses were: 4.26.1 and 4.26.1A.

Consequential Outage – Relief from capacity refund and unauthorised deviation penalties, RC_2010_23

This Rule Change was made on 18 January 2011 and commenced on 1 May 2011. Affected clauses were: 3.21.2, 3.21.6, 6.15.1, 6.15.2 and the Glossary, and new clauses 3.21.8, 3.21.9, 3.21.10, 3.21.11 and 3.21.12.

Adjustment of Relevant Level for Intermittent Generation Capacity, RC_2010_24

This Rule Change was made on 1 April 2011 and commenced on 1 July 2011. Affected clauses were: 4.11.3A, 7.13.1C (new), 7.7.5B and 7.7.5E (new).

Calculation of the Capacity Value of Intermittent Generation - Methodology 1 (IMO), RC_2010_25

This Rule Change was made on 15 December 2011 and commenced on 1 January 2012. Affected clauses were: 4.10.1, 4.10.3, 4.10.3A (new) 4.11.2, 4.11.2A, 4.11.3A, 4.11.3B, 4.11.3C(new), 4.11.3D(new), 4.11.3E(new), 6.17.6, 7.7.5A, 7.7.5B, 7.7.5C, 7.7.5D, 7.7.5E, 7.7.9, 7.13.1, 7.13.1C, 10.5.1, Appendix 9(new) and the Glossary.

Correction of Minor, Typographical and Manifest Errors, RC_2010_26

This Rule Change was made on 16 November 2010 and commenced on 1 December 2010. Affected clauses were: 2.10.7, 2.34.2A, 2.34.10, 2.37.5, 3.4.5, 3.5.6, 3.17.1, 3.17.6, 3.21.4, 3.21.7, 4.8.3, 6.2.2, 6.2.2A, 6.2A.2, 6.3A.2, 6.3A.3, 6.3B.1B, 6.3B.3, 6.3C.3, 6.3C.9, 6.4.1, 6.4.3, 6.5.1A, 6.5.2, 6.5A.2, 6.5C.2, 6.5.4, 6.5C.6, 6.6.2A, 6.6.5, 6.7.2, 6.14.1, 6.16.1, 6.18.2, 6.19.3, 6.19.4, 6.19.9, 6.20.1, 6.20.9A, 6.21.1, 6.21.2, 7.10.5, 7.11.3, 7.11.4, 7.11.6A, 7.11.9, 8.7.1, 9.4.5, 9.4.7, 9.17.3, 9.18.3, 9.19.5, 9.20.5, 9.20.7, 9.24.10, 10.5.1, 10.7.1, 10.8.2 and the Glossary.

Curtailable Loads and Demand Side Programmes, RC_2010_29

This Rule Change was made on 17 June 2011. The Amending Rules commenced on 1 July 2011, 1 October 2011 and 1 December 2011. Affected clauses were: 2.27.1, 2.27.2, 2.27.4, 2.29.1, 2.29.1A, 2.29.5, 2.29.5A, 2.29.5B, 2.29.5C, 2.29.5D, 2.29.5E, 2.29.5F 2.29.5G, 2.29.5H, 2.29.5I, 2.29.5J, 2.29.5K, 2.29.5L, 2.29.5M, 2.29.5N, 2.29.5O, 2.29.8A, 2.29.8B, 2.29.9A, 2.29.9B, 2.29.9C, 2.30.3, 2.30.5, 2.30B.2, 2.30B.5, 2.31.23A, 2.33.1, 2.33.4, 2.35.1, 3.14.1, 3.17.5, 4.8.3, 4.10.1, 4.11.1, 4.11.4, 4.11.4A, 4.12.1, 4.12.4, 4.12.8, 4.14.1, 4.18.1, 4.18.2, 4.25.1, 4.25.2, 4.25.3B, 4.25.4, 4.25.4E, 2.25.4F, 4.25.9, 4.25.10, 4.25A.1, 4.25A.2, 4.25A.3, 4.25A.4, 4.25A.5, 4.26.1, 4.26.1A, 4.26.1B, 4.26.1C, 4.26.2, 4.26.2C, 4.26.2CA, 4.26.2D, 4.26.2E, 4.26.2F, 4.26.3, 4.26.3A, 4.26.4, 6.3A.2, 6.5A.1, 6.11.1, 6.11.2, 6.11A.1, 6.12.1, 6.15.2, 6.16.1, 6.16.2, 6.17.6, 7.1.1, 7.2.2, 7.6.10, 7.7.3, 7.7.4, 7.7.4A, 7.7.10, 7.10.4, 7.13.1, 9.3.3, 9.3.4, 9.3.7, 9.13.1, 10.5.1, the Glossary, Appendix 1 and Appendix 3.

De-Registration of Rule Participants who no longer meet registration requirements, RC_2010_31

This Rule Change was made on 19 August 2011 and commenced on 1 March 2012. The affected clauses were: 2.17.1, 2.31.13, 2.32.7A (new), 2.32.7B (new), 2.32.7C (new), 2.32.7D (new), 2.32.7E (new), 2.32.7F (new) and the Glossary. 

Cost_LR, RC_2010_33

This Rule Change was made on 16 May 2011 and commenced on 1 November 2011. The affected clauses were: 3.22.2, 3.22.3, 9.9.1, 9.9.1A, 9.9.2, 9.9.3, 9.9.3A (new), 9.9.3B (new), 9.9.4, 9.10A.1, 9.11.1 and the Glossary.  

Provision of Commissioning Information by System Management, RC_2010_34

This Rule Change was made on 20 December 2010 and commenced on 1 January 2011. The affected clause was: 3.21A.16.

Use of Forecasts in SRC Assessment, RC_2010_35

This Rule Change was made on 7 January 2011 and commenced operation on 1 February 2011. Affected clauses were: Clauses 4.24.1 and the Glossary.

Acceptable Credit Criteria, RC_2010_36

This Rule Change was made on 21 March 2011 and commenced on 1 April 2011. Affected clauses were: 2.38.7, 2.38.8, 2.38.9 and 4.13.7.

List of Entities Meeting the Acceptable Credit Criteria , RC_2011_04

This Rule Change was made on 17 October 2011 and commenced on 1 November 2011. The affected clause was: 2.37.8.

Curtailable Load Dispatch Clarification , RC_2011_05

This Rule Change was made on 19 October 2011 and commenced on 1 November 2011. The affected clause was: 7.6.3.

Correction of minor, typographical and manifest errors, RC_2011_06

This Rule Change was made on 6 October 2011 and commenced on 1 November 2011. The affected clauses were: 2.8.11, 2.24.1, 2.24.2A, 2.34.12, 3.19.12, 3.21.9, 4.1.11, 4.1.13, 4.1.18, 4.5.9, 4.10.1, 4.25.4F, 5.1.1 6.3B.1B, 6.6.3A, 6.14.4, 7.6A.5, 9.20.5, 9.24.5, the Glossary, Appendix 1 and Appendix 3.

Calculation of Net STEM Shortfall for Scheduled Generators , RC_2011_07

This Rule Change was made on 15 August 2011 and commenced on 1 December 2011. The affected clauses were: 4.26.2, 4.26.2B and 4.26.5.

Curtailable Load Dispatch for NCS and Changes to the RCOQ for Curtailable Loads under certain circumstances, RC_2011_08

This Rule Change was made on 22 November 2011 and commenced on 1 December 2011. The affected clauses were: 4.12.4, 4.12.8, 4.26.2D and 7.6.10.

Correction of Minor, Typographical and Manifest Errors, RC_2011_11

This Rule Change was made on 1 February 2012 and commenced on 1 March 2012. The affected clauses were: 2.33.1, 2.33.2, 2.33.3, 2.33.4, 3.2.1, 3.11.8A, 3.11.8B, 3.13.1, 3.13.3B, 3.13.3C, 3.14.3, 3.21B.7, 4.25.2, 4.25.2, 4.28.5, 6.5C.6, 6.18.2, 7.2.3B, 7.6.2, 7.6A.5, 10.5.1, Appendix 1 and the Glossary.

Extensions to Procedure Change Process Timelines , RC_2011_12

This Rule Change was made on 14 December 2011 and commenced on 1 January 2012. Affected clauses were: 2.10.17(new), 2.10.18(new) and 2.10.19(new).

Heads of Power for MRCP Market Procedure, RC_2011_13

This Rule Change was made on 6 December 2011 and commenced on 1 January 2012. Affected clauses were: 4.16.3(a).