1. IGG Agenda – 29th November 2007
Minutes from last IGG meeting – 10.10
Review of Action Items – 10.20
CER Update – 10.30
Gemserv Update – 10.40
Market Operations Update – 10.50
Networks SEM Update – 11.20
Retail Market Design Service Update – 11.30
Market Design Update – 11.40
Next Steps – 12.00 1

2. Minutes
Minutes from IGG meeting – October 18th 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. Action Items addressed in advance of meeting (closure proposed)
To address at a future IGG (to be specified) E. Barr’s query about the implications of a potential future change to DST. 4

5. Action Items addressed in advance of meeting (closure proposed)
Use the Transactional Code Change Requests template to document request for 10 (plus 6) new Meter Category Codes
Action Item 148
Participants to communicate to RMDS any problems with messages arriving in the in the incorrect order or not at all
Action Item 150
Receive feedback on DR 126 Changes to ARIS Data Definitions by the next Conference call 5

6. Action Items addressed in advance of meeting (SEM Cutover Actions - closure proposed)
SEM to advise participants on the status of the Extranet upgrade
Action Item 162
Participants to install Release 14.0 of the MPCC and Webforms on their test MPCCs by Tuesday 23rd October
Action Item 163
Participants to feedback comments on the percentages to be used for the SLA for Actual/Estimate Flag on Aggregation messages by cob 22nd October
Action Item 164
Carry out a ‘go-live’ Data Verification exercise with Retail Market Participants 6

7. Action Items addressed in advance of meeting (SEM Cutover Actions - closure proposed)
Update cutover personnel by and text on Sunday 28th, as to the progress of the SEM cutover.
Action Item 168
Reissue the RMDS Approach to Cutover document with updated tasks and timings. 7

8. Action Items to be covered later in the presentation
Give feedback on the impact the introduction of this new Universal Meter Category Code, has on the Change of MCC and Meter Reading processes
Action Item 160
Send KPMG Confidentiality Agreement to participants 8

9. Action Items to be covered later in the presentation (Market Design)
Issue note to participants requesting feedback on the versioning of the 341 market message
Action Item 173
Update the SoLR process to take account of the SoLR decision paper /07/171 9

10. Update on Action Items
Action Item 7 (& Action Item 92) – RMDS to investigate the procedural issue whereby a duplicate MPRN is generated when a quotation is ‘rolled back’
Working Practice 13 has been issued by RMDS on 2nd November
Note that WP will be amended to clearly state that no de-energisation messages will issue
Feedback received 10

11. Update on Action Items
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
Working Practice 16 has been issued by RMDS on 22nd November
Feedback awaited 11

12. Update on Action Items
Action Item 95 – Investigate the possibility of addressing inconsistencies between the DUoS rules and the MICs and DUoS Groups in the MPRN data.
ESBN (Commercial) are preparing a proposal for submission to CER.
Some figures are in the Table below:
1 Broadly equivalent to QH threshold
2 Broadly equivalent to MIC 50kva
3Broadly equivalent to MIC 30kva 12

13. Update on Action Items
Action Item 108 (& Action Item 159) – Issue Data Storage and Archiving Document to Market Participants
Originally issued on Thursday 22nd November and subsequently withdrawn
Updated version will be re-issued shortly 13

14. Update on Action Items
Action Item 117 – All Retail Market Participants who intend to use the QH Readings Processor software after SEM go-live should notify RMDS before July 26th
Formal issued to all MPs on 14th November 2007
All relevant Market Participants have responded confirming that the software is not in use at their sites
Next Steps: RMDS to propose formal de-commissioning of software to CER 14

15. Update on Action Items
Action Item 131 – Establish the current status of the postcode proposals
Position unchanged since last IGG
Propose to close this item 15

16. Update on Action Items
Action Item Review the ‘28 open issues’ from the Issues Log at the next conference call
16 open issues
Long standing request to MPs to review Issues Log, no responses received so far
Next steps ? 16

17. Update on Action Items
Action Item 153 – Give a progress report on Year End Arrangements at the next IGG
Originally issued on 22nd November and subsequently withdrawn
Settlement calendar awaited from SMO 17

18. Update on Action Items
Action Item 156 – Update on ‘Universal Meter’ (3 register meter)
Awaiting outcome of Support Centre analysis. The likely approach is:
Conventional MCCs will be used i.e. 24hr. or Day/Night
The MCC requested will appear on the service order.
At new connection, the NT takes the appropriate readings and completes the service order.
ESBN will do a development to ‘force’ the meter characteristics into the relevant mode at completion in database depending on the MCC.
The Meter Reader will ‘see’ only the relevant registers on his/her handheld. 18

19. Update on Action Items
Action Item 156 – Update on ‘Universal Meter’ (3 register meter) (contd.)
Change in MCC
Conventional MCCs will be used i.e. 24hr. or Day/Night
The MCC requested will appear on the service order.
The NT takes the appropriate readings and completes the service order.
On completion in database, the meter characteristics into the relevant mode depending on the MCC.
The Meter Reader will ‘see’ only the relevant registers on his/her handheld.
Will update at next IGG. 19

20. Update on Action Items
Action Item 165 – RMDS to raise the issue of meter roll-overs with ESB Networks
Examples of this problem provided to the Data Collector
Reply awaited 20

21. Update on Action Items
Action Item 166 – Raise a Discussion Request to prevent the use of estimate reads for a Change of Supplier
Draft DR 0152 issued to originator for review 21

22. Update on Action Items
Action Item 169 – Examine preventative measure with the message reconciliation and resending processes to ensure there are no exceptions over the Christmas period
A process of cross checking by both parties involved in this manual process was introduced when a problem was originally identified back in July
This process will be ongoing 22

23. Update on Action Items
Action Item 174 – RMDS to Advise IGG of assurance measures to detect issues with future schema changes by IPT stage
In the future, the Hub team will carry out extra tests prior to the issue of a new draft schema using a software tool:
a compare between the live schema and the new schema to ensure that the only differences are those covered by MCRs
To validate a sample of real XML messages against the draft schema
Incorporate dependency for sign-off on completion of internal Regression Testing in advance of commencement of IPT 23

24. Action Items to be carried forward
Action Item 24 (& Action Item 75) – DR New MPD 37 New Transmission Connected Sites
Meeting has been arranged to finalise the proposed changes to MPD 37 24

25. Action Items to be carried forward
Action Item 39 – To get information on the volumes of readings that are currently rejected because they are outside of the tolerance ranges for the different DGs
In progress 25

26. Action Items to be carried forward
Action Item 109 – New Commercial Policy required to cover Erroneous De-registrations
Draft Commercial Policy under discussion in ESB Networks 26

27. 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 27

28. 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 addressed in advance of January IGG 28

29. CER Update 29

30. Gemserv Update 30

31. 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 31

32. Market Operations Update32

33. Retail Electricity Market Issues Update
Cormac Madden, RMDS 33

34. Retail Electricity Market Issues Log
Log continuing to issue on a weekly basis
Summary Statistics (as per last release – )
Total Number of Issues Logged
Total ‘Closed’
Total ‘In Progress’
Total ‘Being Monitored’
Total ‘Logged’
Total Raised Since Last Issue
Total Closed Since Last Issue 34

35. Retail Market Design Service Update
C. Madden, RMDS 35

36. Retail Market Design Service Update
ESB Networks SAP-ISU outage on 18th November 2007
ARIS software upgrade 36

37. Retail Market Design Service Update
ESB Networks SAP-ISU outage on Sunday 18th November 2007
ESB Networks SAP-ISU and ESB Customer Supply SAP-ISU are separate applications with separate data stores running on separate processors but located within a single cabinet and sharing the power supply and other services
Unusually, this outage involved the common power supply (memory upgrade to ESBCS SAP)
A gap in the outage agreement procedure meant that ESBN did not agree to the outage prior to its announcement.
ESBN has taken this incident up with its IT service provider and clarified the market impact
A formal procedure has now been implemented to secure prior agreement by the ESBN designated SLA holder to all future planned outages 37

38. ARIS Upgrade Successful upgrade of ARIS software last week
About to launch new web features
Improved Interface
Increased Model Information
Zooming and Full-Screen Mode
Printing to PDF
Simple Report
Online Help 38

39. 39

40. Discussion Requests & Market Change Requests
Susan Morrissey, RMDS 40

41. Market Change Request
MCR Amending Generator Unit ID and Generation Unit ID
Circulated on 31/10/07
No Feedback received
Approval Requested 41

42. Market Change Request MCR 158 – Changes to ARIS Data Definitions
MCR circulated on Thursday 22nd November
Approval requested 42

43. Discussion Request
DR Proposal to add Acceptance, Completion and Cancellation messages to Meter Works design
Feedback from one participant raised issues about the process for cancellation of Meter Works/De-energisations/Re-energisations
Further internal ESB Networks discussions ongoing
Valid ‘cancellation’ codes will be added to 131 message when the DR is re-circulated (Action Item 70) 43

44. Market Change Request MCR 0154 – Versioning of the 341
Propose to rename the MCR from
‘Versioning of the 341’ to
‘Versioning of the Meter Data on the 341 Market Message’
Question raised – How will the MCR handle version numbers for import and export data
Proposed Solutions for MCR 154
Solution 1 Provide a separate Version Number at the MPRN level for Import and Export data and a read replacement flag at the Channel Level Details which would indicate the channel being updated.
Solution 2 Provide a Version Number at the channel level. This would mean that the Import QH kW, Import QH kVAr, Export QH kW and the QH Export kVAr would each have a version number. The Read Replacement Flag would no longer be required as the version would indicate the reading being replaced.
Longer term raise a new DR to build a new message 342 for Export data only and use 341 for import data only. 44

45. Market Change Request DR 0113 Supplier of Last Resort Update
The Supplier of Last Resort Decision (SoLR) CER/07/171 has impacted the Market Design Process in the following ways:
No.
CER 07/171 Impacts on MPD 4 SoLR Process 1.
The Defaulting Supplier is given an undisclosed amount of time to rectify the issue. (This was previously a 5 day rectification period). 2.
MRSO will supply the SoLR with the percentage market share of the defaulting supplier, within 1 working day of the Suspension Notice in the wholesale market. 3.
The SoLR Supplier Unit is sent to the Market Operator. 4.
The SoLR contacts affected customer within 5 working days of the SoLR Direction. Customers then have 14 working days to choose an alternative supplier at the end of the 5 day Contact period. 45

46. Market Change Request DR 0113 Supplier of Last Resort Update
Issues still outstanding
The content of the CSV file to be issued to Suppliers and the SoLR.
How to handle MPRNs which are not currently practical to send in on an 010, for example, denergised sites, sites with meter works in progress etc,
The creation of a SoLR sub process to handle SoLR exceptions plus the interactions between ESB Networks and the SoLR along with issues such as disputed reads. 46

47. Prioritisation of MCRs/DRs for next schema release
Top MCRs/DRs
DR Proposal to add Acceptance, Completion and Cancellation messages to Meter Works design
MCR Addition of New Market Message for the Provision of Reconciliation Data
MCR Decouple Connection Agreement requirement from Change of Supplier where MIC >=100kVA and there is no Change of Legal Entity 49

48. Next Steps Proposed Diary dates for subsequent meetings
(Note: there will be a TAG meeting afterwards with a designated start time, covering the MPCC strategy)
– to be confirmed
– to be confirmed 51

49. Next Steps
Propose to continue with conference call every two weeks – proposed dates
– Proposed date (note: 27th December call cancelled!)
Call details have new contingency PIN No:
Number: PIN :
Contingency number remains: New PIN: 80490 52

50. Thank You 53