IGG Agenda – April 19th 2007 Minutes from last IGG meeting 10.00 – 10.10 Review of Action Items 10.10 – 10.20 CER Update 10.20 – 10.30 Gemserv Update 10.30 – 10.40 Market Operations Update 10.40 – 11.00 Networks SEM Update 11.00 – 11.40 Retail Market Design Service Update 11.40 – 11.50 Market Design Update 11.50– 12.00 Discussion Requests & Market Change Requests Next Steps 12.00 - 12.10 1

Minutes Minutes from IGG meeting – March 8th 2007 2

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

Actions addressed in advance of meeting Action Item 14 Reminder to be sent out to Suppliers for nominations for the Assurance Advisory Group Action Item 15 Publish agreed ToR for AAG on RMDS website Action Item 42 Circulate the agenda for Suppliers Forum (CER) 4

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’ Working Practice 13 redrafted covering points made at the last IGG ESB Networks currently reviewing the document Will issue to Market Participants shortly 5

Update on Action Items Action Item 9 – Review possibility of creating and providing dedicated MPRN data for use in all IPT tests This approach was used in a recent Requalification IPT Lessons learnt: - IPT SAP client will always be out of sync with live - Will suppliers live with different data for every IPT? - Refresh of IPT SAP client will mean loss of generated test data 6

Update on Action Items Action Item 13 – RMDS Draft Business Plan 2007 Issued to MPs on 5th January Final version with CER for approval 7

Action Items to be covered later in the presentation MCR 0127 Decoupling of the Connection Agreement from Change of Supplier Action Item 12 Update DR 123 - Versioning of the 341 message Action Item 16 ESB Networks to report to CER on erroneous de-registrations Action Item 23 DR 0103 – Vulnerable Customers 8

Action Items to be carried forward Action Item 1 – Update MCC Guidance document Document in Final Review Stage 9

Action Items to be carried forward Action Item 5 – MCR 0130 – Extra validation checks required at creation of 306, 307, 106 and 332 messages MCR 0130 to issue shortly 10

Action Items to be carried forward Action Item 8 – Investigate whether new 131 message could be issued for Special Read Request DR 0117 has been updated and will issue shortly 11

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 12

Action Items to be carried forward Action Item 24 – DR 112 - New MPD 37 New Transmission Connected Sites Follow-up in progress 13

Action Items to be carried forward Action Item 38 – RMDS to investigate if there is a quicker route for raising basic changes Agreed at March IGG to defer this item until June IGG meeting 14

Action Items to be carried forward Action Item 39 – Get information on the volumes of readings – by DUoS Group - rejected because they are outside of the tolerance ranges Information requested but not available yet 15

Action Items to be carried forward Action Item 40 – Investigate, as part of DR 0128, whether advanced readings for de-energised sites could be outsorted Item under investigation Advanced Readings issue complicated by late CX111 processing 16

Action Items to be carried forward Action Item 41 – RMDS to raise a DR to propose the initiation of the updates to the Market systems of a QH to QH meter replacement at the same time as the MV90 is updated Under investigation 17

CER Update 18

Gemserv Update 19

Market Operations Update 20

Market Operations Update MRSO Update 21

Market Operations Update Information Point When acquiring a multi-site customer e.g. county council, could suppliers please check the MP Extranet for all of the relevant MPRNs to establish whether the sites are currently energised and confirm those that require energisation as the CoS process will automatically raise a re-energisation service order for de-energised sites on receipt of 010 22

Retail Electricity Market Issues Update Cormac Madden, RMDS 23

Retail Electricity Market Issues Log Log continuing to issue on a weekly basis Summary Statistics (as per last release – 18.04.2007) Total Number of Issues Logged 142 Total ‘Closed’ 126 Total ‘In Progress’ 12 Total ‘Being Monitored’ 1 Total ‘Logged’ 3 Issues Resulting in DRRs 9 Total Raised Since Last Issue 0 Total Closed Since Last Issue 0 24

Retail Market Design Service Update C. Madden, RMDS 25

Retail Market Design Service Update RMDS have passed NSAI Audit and have been recommended for ISO 9000:2001 Vulnerable Customer – Phase 1 – go live date 3rd May 2007 Information Point for Suppliers: - when a supplier is acquiring a multi-site customer, could they please check the MP Extranet for all of the MPRNs and establish whether the sites are energised and confirm those that require energisation as CoS process automatically raises a re-energisation service order 26

Discussion Requests & Market Change Requests Oonagh Delaney, RMDS 27

New Market Change Request MCR 141 - Vulnerable Customer Requirements Circulated to the market on 12th April Feedback by next Conference Call 28

New Market Change Request MCR 0127 - Decouple Connection Agreement requirement from Change of Supplier where MIC >= 100kVA and there is no Change of Legal Entity Following market approval this MCR is with CER for approval 29

Market Change Requests The following two MCRs went live as part of the Networks Special Enhancements project on 11th April 2007 MCR 0070 - Changes required to MPD 5 to cater for Management of QH Eligibility All new connections at LV (excluding embedded generators) will be set up as NQH (currently LV new connections at 200KVA or higher are set up as QH). MCR 0071 - MPD 35 CHANGE OF METERING FROM NQH TO QH This process covers the procedure for changes of metering from NQH to QH requested by the registered supplier at a meter point or following regular review of existing NQH sites by QHDC. These Changes will be incorporated in Version 6.1 of the Market Design. 30

Discussion Request MCR 144 – Data changes to accommodate new unmetered lamp types Circulated to the market on 12th April Feedback by next Conference Call 31

Discussion Request DR 123 - Versioning of the 341 message Version 1.4 Circulated to the market on 12th April Feedback by next Conference Call 32

Next Steps Proposed Diary dates for subsequent meetings 07.06.07 19.07.07 (proposed date change from 12th July) 23.08.07 33

Next Steps Propose to continue with conference call every two weeks – proposed dates - 03.05.07 17.05.07 Call details will remain the same: Number: 01-6647602 PIN : 77640 Contingency number remains: 01-6647777 PIN: 60236 34

Thank You 35