Material Error Monitoring
Material Error Monitoring is designed to: Estimate the impact and materiality of a Settlement Error; Monitor error levels over time; and Estimate the contribution to overall market errors made by individual Parties and their Agents. The process also helps us rank customer performance in the market and identify operational issues.
Why is it used?
Material Error Monitoring provides assurance to Panel committees and other market participants that a Performance Assurance Party’s contribution to the error is quantified and the impact of such errors is established. This technique complements the BSC Audit, Technical Assurance, Error and Failure Resolution and Trading Disputes processes.
The PAB has a set of reporting requirements used to monitor materiality.
How does the process work?
We use the Material Error Monitoring process to analyse settlement data and supplementary data to estimate and track identified material errors. We can model and communicate the impact of identified settlement errors to the Performance Assurance Board and/or Trading Disputes Committee to help them make decisions. It also enables us to provide estimated error contribution to customers confidentially so they can monitor their progress in resolving errors.
What are the big issues at the moment?
Issues we’re currently monitoring include:
- Erroneous Large Estimated Annual Consumption (EAC)/Annualised Advances (AAs);
- Unmetered Supplies (UMS); and
- Incorrect Energisation Status.
- Additional Information
For more information see below:
Erroneous Large EAC/AAs
Our EAC/AA training video explains the management and resolution of Erroneous Estimated Annual Consumption (EACs) and Annualised Advances (AAs); its impact on the market, monitoring, reporting, and the actions to address it. He also covers how the Trading Disputes process is used to correct errors in Settlement.
Click on the image below to view the video – best viewed in IE9 and above, Firefox and Safari.
NHH Meter Reading Validation Algorithm [305 Kb]
Issued On: 7-November-2013
Work shop notes: 22 September 2011 [182 Kb]
Issued On: 24-November-2011
Incorrect NHH Energisation Status & Unmetered Supplies
Issued On: 10-February-2016
Issued On: 5-December-2016
UMS Monitoring Timetable 2019-2020
Issued On: 30-April-2019
Performance Assurance Framework
Material Error Monitoring is a detective technique in ELEXON’s Performance Assurance Framework.