IGG Agenda – July 19 th 2007

1. Minutes from last IGG meeting 10.00 – 10.10 Review of Action Items 10.10 – 10.20 CER Update Supplier of Last Resort (H Mullany) 10.20 – 10.50 RMDS Update – Supplier of Last Resort 10.50 – 11.05 Gemserv Update 11.05 – 11.15 Market Operations Update 11.15 – 11.30 Networks SEM Update11.30 – 12.10 Retail Market Design Service Update 12.10 – 12.20 Market Design Update 12.20– 12.30 - Discussion Requests & Market Change Requests Next Steps 12.30 – 12.35 IGG Agenda – July 19th 2007 1

2. Minutes • Minutes from IGG meeting – June 7th 2007 2

3. Action Items • Actions Addressed in Advance of Meeting • Update on Action Items • Actions to be covered during remainder of presentation • Actions to be carried forward • Other Action Items 3

4. Actions addressed in advance of meeting • Action Item 85 Suppliers to provide comments on the MCC Guidance document • Action Item 86 RMDS to issue final version of Business Plan 4

5. Update on Action Items • Action Item 7 – RMDS to investigate the procedural issue whereby a duplicate MPRN is generated when a quotation is ‘rolled back’ • Feedback received from suppliers • Working Practice 13 has been redrafted again to incorporate feedback • ESB Networks expected to agree draft which will then issue to Market Participants 5

6. Update on Action Items • Action Item 72 – Make the test MPRN data available to suppliers two weeks in advance of IPT • On target for Monday 30th July 6

7. Action Items to be covered later in the presentation • Action Item 73 Suppliers to provide Feedback on Non Transactional Code Change Requests • Action Item 74 Use the Transactional Code Change Requests template to document request for 10 (plus 2) new Meter Category Codes 7

8. Action Items to be covered later in the presentation • Action Item 76 Gemserv to collate participant’s clarification points, circulate them to the AAG and gain approval from CER • Action Item 77 ESB Networks to produce a data archiving and deletion proposal broken down by message type and date • Action Item 90 Provide feedback on MCR 147 phase 2 Vulnerable Customer Requirements • Action Item 91 Provide feedback on MCR 130 8

9. Action Items to be covered later in the presentation • Action Item 93 Provide feedback on DR 0123 – Versioning of 341 message 9

10. Action Items to be carried forward • Action Item 24 – DR 112 - New MPD 37 New Transmission Connected Sites • Ongoing discussions with Eirgrid 10

11. Action Items to be carried forward • Action Item 41 – Raise a DR to propose the initiation of the updates to the Central Market Systems of a QH to QH meter replacement at the same time as the MV90 is updated • Final discussions taking place with ESB Networks 11

12. Action Items to be carried forward • Action Item 87 – Request technical feedback on MPCC architecture presentation • Further supplier responses awaited 12

13. Action Items to be carried forward • Action Item 10– Prepare proposals on addresses in the Retail Market • Deferred until after SEM go-live at the request of the IGG 13

14. Action Items to be carried forward • Action Item 88 – Organise TAG meeting in Jan/Feb 2008 to discuss MPCC architecture • Deferred until January at the request of the IGG • Action Item 89 – RMDS to contact NIE to discuss the EMMA architecture • Will be done in advance of January IGG 14

15. Other Action Items • Supplier Forum Action • MCC 50 – Quantify the number of MCC 50 sites by Supplier that currently exist in ESB Networks Systems • There are currently a total of 591 MCC 50 sites • Individual breakdown by supplier will be made available after this meeting 15

16. CER Update 16

17. SoLR CER Decision 06/006 Main Changes to MPD 4 • Addition of a Regulatory Authority swim lane • The defaulting supplier is given a remedy period to rectify issues • Removal of the 102N message • The SoLR has responsibility for communicating with the customer • DSO have the option to estimate MD readings 17

18. SoLR CER Decision 06/006 Key Dates and timings • Remedy Period up to 5 days • SoLR Direction date • SoLR Notification date • Change of Supply period (14 days) • Lock in period (3 months) • Affected customer placed on regular tariff (6 months) 18

19. Gemserv Update 19

20. Market Operations Update 20

21. Retail Electricity Market Issues Update Susan Morrissey, RMDS 21

22. Retail Electricity Market Issues Log • Log continuing to issue on a weekly basis • Summary Statistics (as per last release – 18.07.2007) • Total Number of Issues Logged 147 • Total ‘Closed’ 128 • Total ‘In Progress’ 13 • Total ‘Being Monitored’ 1 • Total ‘Logged’ 5 • Issues Resulting in DRRs 9 • Total Raised Since Last Issue 0 • Total Closed Since Last Issue 0 22

23. Retail Market Design Service Update O. Delaney, RMDS 23

24. RMDS Update – SEM IPT Test • 1 hour timeslots have been assigned to Market Participants • Market Participants to install Release 13.0 on their TEST MPCC and carry out connectivity testing (999 message) • Testing of additional messages can also be arranged if any Market Participant requires this • Data for IPT Test will be available end of July • Any potential SoLRs will require an additional Supplier Unit Id. 24

25. RMDS Update – SEM IPT Test Summary of amendments to Gemserv Assurance Requirements • MCR 88 re the M320 • this is an optional step • MCR 96 re IPT1 • QH sites are to be used for IPT1 as 115R issues to TSO, evidence from TSO would be recommended • MCR 96 re IPT2 • suppliers with only one supplier unit, the change of SSAC test will not be required. • MCR 94 • evidence for 102P is required from suppliers for one IPT test only 25

26. Retail Market Design Service Update • Plan to release ARIS v6.1 at the end of July 26

27. Discussion Requests & Market Change Requests Susan Morrissey, RMDS 27

28. Market Change Request • MCR 147 – Vulnerable Customer Requirements • Phase 2 – covers the addition of the Mobility • Impaired Code • Approved at conference call – 5th July • Sent to CER for Approval 28

29. Market Change Request MCR 152 – Vulnerable Customers Phase 3 • Remaining Schema Changes to support additional customer attributes and include these attributes on 114 and 116 messages • Will issue shortly 29

30. Market Change Request • MCR 130 – Extra validation checks required at creation of 306, 307, 106 and 332 messages • Released to the market on 31.05.07 • Discussed at Conference Call – 05.07.07 30

31. Discussion Request DR 0123 – Versioning of the 341 Market Message • Version 1.5 issued on 30.05.07 • Discussed at Conference Call 05.07.07 31

32. Discussion Request DR 0139 - Additional Reject Reason Codes to be included with SEM schema changes • Circulated to the market on 28.06.07 • Discussed at Conference Call 05.07.07 32

33. Discussion Request • Non Transaction Code Change Document • Renamed Code Change Document • Approved at Conference Call 05.07.07 • Sent to CER for Approval 33

34. Defect Resolution Request DRR 0103 - Removal of Redundant Data • Approved at IGG 18.05.06 • MCC68(Autoproducers) and DG4 are removed from Version 6.1 of the xml schema 34

35. Next Steps • Proposed Diary dates for subsequent meetings • 06.09.07 (proposed date change from 23rd August) • 18.10.07 • 29.11.07 35

36. Next Steps • Propose to continue with conference call every two weeks – proposed dates - 02.08.07 • 16.08.07 • Call details have new contingency PIN No: • Number: 01-6647602 PIN : 77640 • Contingency number remains: 01-6647777 New PIN: 80490 36

37. Thank You 37