019 CVA Risk: CVA Registrations


This page outlines the Risk that a Volume Allocation Unit (VAU) is registered incorrectly or not at all such that the Central Data Collection Agent (CDCA) does not collect any or the relevant data.

How it relates to you

Those most likely to be affected by this risk are parties and party agents involved in the registration of new VAUs, the de-registration of VAUs, and those who transfer BM Unit’s between SVA and CVA.

Parties responsible for risk factors

  • Registrant
  • Licensed Distribution System Operator
  • CVA Meter Operator Agent

Parties responsible for risk controls

  • Non-Performance Assurance Parties

Potential causes

Potential causes, or as they known in the Risk Evaluation Register: Risk Factors are the points of failure that could result in erroneous or estimated data entering Settlement.

Elexon has identified a number of typical failure points related to this risk, parties should note the list is non-exhaustive, and not all risk factors are applicable to every role type.

  • Volume Allocation Unit energised but not registered
  • Volume Allocation Unit de-energised and Meters removed but still registered
  • Volume Allocation Unit registered in CVA and SVA
  • Incorrectly registering a non-Settlement Metering System
  • Registrant fails to update registration details when required (e.g. a new circuit added)

Potential solutions

Parties responsible for operating controls should take note of the information below. This identifies the BSC Sections and Procedures relating the risk.

Review the processes outlined in the following BSC section and ensure that internal processes match the requirements:

Impact of this risk on the industry

  • Impact: £4.2 Million
  • Upper Impact: £14 Million
  • Volatility: High

In order to calculate the impact this risk has on your Party, multiply your market share by the impact as outlined above

Further information

Risk Evaluation Register sets out further detailed information on the noted controls. Details can be found under Associated Documents. 

Support and training

Operational Support Managers (OSMs) are able to help with further information or training on this Risk and associated processes.

Methodology used for this risk

The following documents outline the methodology used to assess the Settlement Risk related to Agent appointments.


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