IGG Agenda – 11th April 2008 Minutes from last IGG meeting 11.00 - 11.10 Review of Action Items 11.10 - 11.30 Schema Release 11.30 - 12.00 Recalculation of Estimates 12.00 - 12.15 CER Update 12.15 - 12.25 Gemserv Update 12.25 - 12.35 Market Operations Update 12.35 - 12.45 Proposal for applying the DUoS rules 12.45 - 13.00 Retail Market Design Service Update 13.00 - 13.15 Market Design Update 13.15 - 13.30 Next Steps 13.30 - 13.40 1

Minutes from IGG meeting – 29th February 2008

IGG Action Items 3

IGG Action Items Closed IGG Actions: List issued in advance of meeting detailing IGG Actions to be closed IGG Actions to be carried forward: Feedback sought on list of IGG Actions carried forward 4

Update on Action Items Action Item 108 (& Action Item 159) Issue Data Storage and Archiving Document to Market Participants Issued on 10th April 2008 5

Update on Action Items Action Item 108 (& Action Item 159) Issue Data Storage and Archiving Document to Market Participants Issued on 10th April 2008 6

Update on Action Items Action Item 278 RMDS to investigate why both suppliers are not currently being contacted as outlined in WP13 Working Practice needs to be amended so that both suppliers are advised of duplicate MPRN scenario The current level of duplicate MPRNs is 2 to 3 per month One Supplier maintains if a duplicate MPRN is registered and then de-registered as a result of ESB Networks identifying the MPRN as a duplicate, the supplier will have incurred costs signing up that MPRN and there doesn’t appear to be a mechanism to recoup these costs. Feedback requested. 7

Tony Carroll, ESB Networks Schema Release Tony Carroll, ESB Networks 8

Recalculation of Estimates Cormac Madden 9

Recalculation of Estimates Existing Recalculation only where present less than previous Only as far back as present ceases to be less than previous Proposed Recalculation of all estimates, subject to a significance threshold DUoS tariff change flag Actual Reading 2 Actual Reading 1 Estimates A1 E1 Time E2 E3 A2 Consumption History with Estimates 10

Recalculation of Estimates Actual Reading 2 Actual Reading 1 Estimates A1 E1 Time E2 E3 A2 Consumption History with Estimates Significance Thresholds: Time Consumption Time: No. of consecutive estimated periods Set initially to 3 11

Recalculation of Estimates Actual Reading 2 Actual Reading 1 Estimates A1 E1 Time E2 E3 A2 Consumption History with Estimates Significance Thresholds: Time Consumption Consumption: Level of kWh consumption for the last period indicated by actual read Set initially to 25% of AUF i.e. 3 months average. 12

Recalculation of Estimates (contd.) Present status: Based on current functionality Operational impact of increased message volumes: Not thought to be an issue with thresholds in place Next steps: DR to be raised 13

CER Update 14

Gemserv Update 15

Market Operations Update 16

Proposal for applying the DUoS rules Brendan O’Connor, Commercial Section, ESB Networks 17

Retail Electricity Market Issues Update Cormac Madden, RMDS 18

Market Issues Update Issues Raised since last IGG Market Issue No. 153 - Customer special needs not populated on 105 message Market Issue No. 154 - The current service order does not take into account where a customer requests night/day meter but is also installing night storage heating. This often results in two calls to premises 19

Market Issues Update Issues Closed since last IGG Market Issue No. 135 - Technical Contact Name and Phone number sent on CoS request without Tech contact address causes 105 to issue with blank street field in Tech Contact Address 20

Retail Market Design Service Update C. Madden, RMDS 21

RMDS Update Report on Service Objectives Message Reconciliation process Revised Outage Notification process 22

Retail Market Design Service Update Key Service Objectives Area Activity Measure Objective  Actual (2007) Customer Surveys No. per year 1 1  Process Design releases No. of significant errors 5 Information released to website Time to release from receipt <1 day  80% approx. Change Control Circulation of documents (days before meeting) 100%  Query Helpline Response time to Design Queries 95% approx  Market Meetings Agendas (days before meeting)  100% Minutes (days after meeting) 22%  Resolution or escalation of IGG Actions (weeks) 12   80% approx New Release of design documents (No. of significant errors)  2 System planned outages Notice of part weekend outage (days) 50% approx  23

Retail Market Design Service Update Other Service Objectives Area Activity Measure Objective  Actual Process Design releases No. of non-significant errors < 5  5+ Response time to queries requiring input from 3rd parties (e.g. ESBN) 10 95% approx  Market Meetings Working documents (days before meeting) 2 100%  Presentations (days before meeting) 0%  Final presentations (days after meeting)  100% Change Control New Release of design documents (no. of typographical errors) < 5  24

RMDS Service Objectives IGG Agendas (5 days before meeting) IGG Change Control Documents (5 days) IGG Working Documents (2 days before meeting) IGG Presentations (2 days before meeting) IGG Final Presentations (2 days after meeting) IGG Minutes to be distributed (within 5 days) IGG Conference Call Agenda (5 days before Meeting) IGG Conference Call Minutes (5 days after Meeting) System Planned Outages (5 days notice) 25

RMDS Service Objectives Days Quantity Met Agendas 5 8 100% Change Control Documents 9 Working Documents 2 7 71% Presentations 0% Final Presentations Minutes 22% Conference Call Agenda 19 79% Conference Call Minutes 95% Overall 87 75% 26

Number of Action Items by Category 27

Total Number of Action Items 28

Number of Action Items Closed 29

Resolution or escalation of IGG Actions (within 12 weeks) 30

Message Reconciliation Colm Gaffney, RMDS 31

Reconciliation Reports Missing Receipt Acknowledgements Issued to Hub but not transmitted (failed validation) Numbers of Messages received by the HUB Inbound from Suppliers and transmitted to CMS (for 24 hr period) Numbers of Messages received by the HUB Outbound from CMS and transmitted to Suppliers (for 24 hr period) ∑ Total Validation Failure No RA 32

Reasons for message failures Message failed to be routed Cause - no data or invalid data Message routed but did not pass the Routing Schema Cause – incorrect Port or Topic in the routing table Message failed to be converted Cause – invalid data type Message failed validation Message failed to be packaged Message failed to be transmitted Discrepancies between CMS counts and HUB counts Messages delayed due to outages 33

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Outage Notification Process Colm Gaffney, RMDS 36

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Discussion Requests & Market Change Requests Cormac Madden, RMDS 38

Discussion Request MCR 063 Data Fields Published for QH Import Report Data Fields Published for NQH Import Report MPRN Supplier Unit DUoS Group MCC 10000055555 SU_427000 DG7 MCC10 MPRN Supplier Unit DUoS Group MCC Load Factor 10000002321 SU_424000 DG6 MCC06 LF3 Profile Description Role Role Description Usage Factor AUF/EUF Flag STD Prof 8 Day 00D 00 Standard day 4,523.78 A 39

Discussion Request MCR 0154 A new 342 market message for export channel data only The 341 market message is to be modified to exclude the Export data. A new Version Number field will be added to the 341 and 342 Market Message at the ‘MPRN Level Information’ segment. 341 and 342 market messages are to be prevented form issuing with single channel data. The Channel Status that currently resides at the Channel Level details should be moved up to the MPRN level and renamed ‘Alert Flag’. 40

Market Change Request MCR 0160 - Working Practice 0016 - Document the procedure to be used for like-to-like QH meter replacement Issued to the market on 04.04.08 Approval requested 41

Draft Discussion Request Action Item 212 Publish multiplier value associated with an MPRN on the MP Extranet 42

Next Steps Proposed Diary dates for IGG meetings in 2008: 15.05.2008 26.06.2008 07.08.2008 18.09.2008 30.10.2008 11.12.2008 22.01.2009 Proposed dates are on Calendar of Events on RMDS website 43

Next Steps Propose to continue with conference call every two weeks: 17.04.2008 01.05.2008 29.05.2008 Call details have new contingency PIN No: Number: 01-6647602 PIN : 77640 Contingency number remains: 01-6647777 New PIN: 80490 44

Thank You 45