What this document covers
What this document does not cover
Settlement Accuracy and Settlement Error
- Limitations of Settlement Accuracy
- What is Group Correction Factor (GCF)?
- What is Annual Demand Ratio (ADR)?
Calculating GCF and ADR
- How are GCF and ADR Calculated?
- What is GSP Group Take?
- What are Consumption Component Class (CCC) IDs?
- How GSP Group Take and CCC IDs are used to Calculate GCF – Worked Example
- How GSP Group Take and CCC IDs are used to Calculate ADR – Worked Example
Investigating ADR Anomalies
- Potential Errors with the ADR Calculation
- Potential Errors with GSP Group Take Calculation or Data
- Potential Errors with SVA Volumes
- ADR Investigation Checklist
Potential Causes of ADR Anomalies other than Settlement Error
- Profiling Accuracy Drops Below 1.5%
- LLF Calculations are Compliant, but not Accurate
- Undetected Energy Theft
- Microgeneration Spill
Do you need more information?
Appendix 1: ADR Investigation Checklist
Appendix 2: GSP Groups
Appendix 3: VAU Aggregation Rule Example
Appendix 4: List of CCC IDs

Elexon ADR Guidance Note V1.0

Effective From Date:03/02/2025

Status:LIVE

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