1. Datalogger / DMV Modification Proposals - Summary
Simon Trivella – 24th June 2010
Distribution Workstream - Elexon

2. Background / Drivers
The world is changing – increase in AMR usage and new supplier obligation increases the number of devices attached to meters
More options for obtaining data
More cases of devices being disconnected resulting in lost data and therefore data not being usable
DM elective (DME) due to be introduced in November 2010
Consistent with meter reading being a competitive activity
Modification Proposal 0258 already implemented which reflects this changing world
Allows Transporter to procure data from 3rd parties

3. Background / Drivers DM Unbundling to be considered / developed
Potential lengthy timescales
WWU is drafting three Modification Proposals
Priority of position for Transporter equipment
Removal DM voluntary (DMV) sites from DM liability regime
Removal of DMV regime when DME is operational and after transition period
Detailed discussions to take place at June 2010 Distribution Workstream
Feedback / comments welcome in the interim period

4. Priority of position for Transporter equipment
Gives priority of position to Transporter dataloggers and data recorders installed for UNC purposes
UNC refers to IGE Meter Recommendations
Installation of Supply Meter only
IGEM/GM/7A proposes that loggers used for fiscal purposes should have priority
This does not apply to equipment used for other purposes (e.g. Demand Estimation)
We recognise work to develop standard MPU contract
For historical reasons Transporter equipment tends to have priority of position
Modification raised to regularise situation and ensure that the position is clear within the UNC

5. Removal DM voluntary sites from DM liabilities
DMV sites can be from 73,200kWh to 58,599,000kWh
Not material to daily balancing requirements
Daily settlement data requirements are D+5
Removal of DMV from DM liability regime would mean that networks concentrated on the DMM sites that are material to daily balancing

6. Removal of DMV regime
Once competitive activity established then the bundled service should cease to be an obligation
Transporters could act as a DM(E)SP (outside of UNC arrangements)
Consistent with meter reading being competitive activity
DM elective will provide competitive alternative to DMV
Phased approach consistent with DME rollout
Transition period of [3] months following each Phase
1st Phase transition period of [6] months
After transition period all DMV sites become DME or NDM

7. Next steps Comments / Feedback welcome
[Draft] Modification Proposals raised in June 2010
Further Discussion / Development at June 2010 Distribution Workstream

8. Datalogger / DMV Modification Proposals - Summary
Simon Trivella – 24th June 2010
Distribution Workstream - Elexon