DM Elective Transfer Scenarios 29 January 2009

1. DM ElectiveTransfer Scenarios29 January 2009

2. Principles • Incoming Shipper or Read Provider responsible for obtaining read at Start of GFD – i.e. 01/01/09 • Where Outgoing Shipper or Read Provider provides reading this will be rejected, regardless of whether Incoming Shipper or Read Provider provides reading • If Actual Reading not provided by Incoming Shipper or Read Provider, Reading Calculated by: • D-7 • AQ/365 • NDM Estimate Read Process • File to notify Shippers of ‘Transfer’ Readings will be relevant to read service

3. Further Principles • If Outgoing Shipper disagrees with ‘Transfer’ Reading (whether Actual or Estimate), a Consumption Adjustment is required • Incoming Shipper will be required to raise • As per Shipper Agreed Reads process where a CA is received around transfer the CA is assumed to be agreed with Shipper A

4. Discussion Points: • Asset Exchanges • IDC Changes

5. Discussion Points: • Datalogger to AMR kit Exchanges • DMSP / IDC Switch

6. Discussion Points: • AMR to Datalogger kit Exchanges • IDC / DMSP Switch

7. Discussion Points – Read Not Provided: • No DM history for D-7, or AQ/365 • Previous NDM Readings may be aged • Discussion Points – General: • Assumes NDM-DM Readings follow on

8. Discussion Points – Transfer Reads (>D): • DM / NDM Readings may not be in sequence • Inferred large consumption for GFD 31/12 • Ratchet Functionality? • Opening Reading may not get loaded until D+10 • Likely to require Manual Intervention • Discussion Points – Transfer Reads (D): • DM / NDM Readings may not be in sequence • Opening Reading may not get loaded until D+10 • Likely to require Manual Intervention

9. Discussion Points – Transfer Reads (<D): • DM / NDM Readings may not be in sequence • Inferred negative consumption for GFD 31/12 • Opening Reading may not get loaded until D+10 • Likely to require Manual Intervention

10. Views • Confirm approach • Ensure consistency with Business Rules • Finalise analysis