Under the Market-wide Half Hourly Settlement (MHHS) programme, the management of Standard Settlement Configuration (SSC) and Time Pattern Regime (TPR) data is transitioning from Market Domain Data (MDD) to the Retail Energy Code (REC).
Key Changes:
- SSC and TPR data will no longer be maintained by Elexon in industry standing data.
- SSC remains essential for Traditional Metering Assets and must be populated in the Supplier Meter Registration Service (SMRS).
- SSC and TPR are now included in key MHHS interfaces and market messages (e.g., D0149, D0150, IF001–IF036).
- For Smart and Advanced meters, SSC population is optional but may be used by suppliers for business processes.
Supply Number Update:
- The SSC Id will be included in the top line of the Supply Number for MHHS Metering Points from milestone M8 onwards.
- Mandatory only for Traditional meters; optional for Smart/Advanced meters.
Future Considerations:
- Industry interest in continuing SSC use for Smart/Advanced meters is noted.
- REC Code Manager will explore appropriate use cases and keep stakeholders informed.
- Change proposal R0243 has been raised to support the transition of SSC and TPR ownership to REC.