UNC0884: Uniform Network Code (UNC) changes
- Publication type:
- Code modification
- Publication date:
- Topic:
- Metering, Energy codes
- Subtopic:
- Uniform network code (UNC)
- Industry sector:
- Generation and Wholesale Market,
- Supply and Retail Market,
- Transmission Network
Outcome of changes to Uniform Network Code UNC0884, extending the read submission window for PC4 meter reads to improve settlement accuracy.
Details of outcome
Ofgem has directed that UNC Modification 0884 be implemented. The change extends the read submission window for Profile Class 4 (PC4) sites, allowing more valid meter reads to enter settlement. This is expected to reduce Unidentified Gas (UIG), improve Annual Quantity (AQ) accuracy, and reduce the need for manual AQ fixes and repeat site visits.
Start date
To be confirmed by the Code Administrator.
Code modification description
UNC Modification 0884 was raised by Ovo Gas Ltd on 11 June 2024. It seeks to extend the read submission window for PC4 meter reads beyond the current 25 Supply Point System Business Days (SPSBDs). The change introduces staggered benchmarks for both domestic and non-domestic premises to ensure timely data flow while allowing flexibility for complex reads. The modification was proposed in response to industry feedback and analysis showing that many valid reads are excluded from settlement due to timing constraints.