PNUNC AMR3 Topic Workgroup 12th May, 2010.

Transporter response to actions.

AMR004: Transporters (CW) to provide supporting justification as to why, and what type of AMR asset information they believe they would require in a future unbundled solution and whether or not it is appropriate for them to specify AMR equipment standards

Transporter response to actions

AMR005: …consider what constitutes an appropriate upper threshold level for DM Mandatory sites and whether more rigorous business rules will be needed in the unbundled world.

Transporter requirements for AMR information in an unbundled DM regime

Current requirements:

Information provided split into Firm and Interruptible Supply Points

6 a.m. daily read

Hourly reads provided every 4 hours

Daily data

Required for energy settlement/allocation

FTi

Hourly data

Required for system operation (incl emergency & interruption management)

Re-sync information resulting from maintenance & or fault investigation.

Transporter requirements for AMR information in an unbundled DM regime

Inappropriate for Transporters to be specifying equipment standards.

DM eligibility

No aspiration to amend DM mandatory threshold which appears optimal.

Business rules anticipated to be more rigorous than DME given:

requirement for ‘within day’ data

implications to the industry of non-receipt of accurate and timely reads for daily settlement.

Possible next steps

DM data requirements ‘wider’ and more complex than the issues identified under Project Nexus

Unbundling benefits could in principle be realised ahead of Project Nexus timescales subject to appropriate funding

Consideration should be given to progress initiative as separate development outside of Project Nexus remit

Could be UNC Modification Proposal raised for development within UNC Distribution Workstream?

Scope to address all aspects of existing DM regime (DMM, DMV, telemetry, etc).