Action 0002: Meter Error Notifications Simon Trivella – April 4th 2007 Review Group 131 – LDZ RbD Reconciliation Notification Process

Purpose Background to action WWU view on Information provision & timescales Proposed way forward

Background to action Number of issues highlighted with previous Offtake Meter Error(s) and the Mod 643 process Potential for reconciliation period of +9 years ‘Unfair’ Market share under RbD Meter Assurance activities and process Mod 643 process has ‘no legal authority’ Potential large LDZ RbD Reconciliations ‘invisible to industry’

Background to action Possible reconciliation period of +9 years UNC Modification 126 progressing well with this ‘Unfair’ Market share under RbD Potential Modification discussed at Distribution Workstream Meter Assurance activities and process Technical forums and future review of validation procedures

Background to action Mod 643 process has ‘no legal authority’ Review Group 131 tasked to identify a LDZ RbD Reconciliation Notification Process that is acceptable to all of the industry Potential large LDZ RbD Reconciliations ‘invisible to industry’ Action0002 on WWU (ST)

WWU view – potential process Process under control of OC/OAW and referenced in OAD Central published register of LDZ Offtake meter faults that will impact on RbD (regardless of size) Regular [monthly] updates to status and information until RbD reconciliation occurs

WWU view – Level of information Optional Volume of Gas (mcm) MER Date RbD Invoice Date Total RbD Amount (£) Energy (Gwh) Status Mandatory GT Offtake LDZ(s) Exit Zone Description Error Detected Detection Reason Error Dates

Way Forward Feedback welcomed Agreed proposed process between all Transporters Proposal taken to May 2007 OAW / OC

Action 0002: Meter Error Notifications Simon Trivella – April 4th 2007 Review Group 131 – LDZ RbD Reconciliation Notification Process