P344 IWG 4: Virtual Lead Party processes

This industry working group is developing the processes and the associated Code Subsidiary Documents (CSDs) changes required to implement two requirements of the P344 ‘Project TERRE’ solution:

  • The lead Party of a SBMU shall be required to submit Half Hourly Delivered Volumes for each MSID Pair Notified to Settlement
  • SVAA shall allocate MSID Pair Delivered Volumes between the composite MSID Pairs to create Metering System Delivered Volume

Current status

Impacted documents were issued for industry review 17 October – 14 November 2018

Documents Impacted

  • BSCP503
  • BSCP507
  • BSCP508
  • NEW BSCP602

Background to P344 ‘Project TERRE’

P344 ‘Project TERRE’ seeks to align the Balancing and Settlement Code with the European Balancing Project TERRE (Trans European Replacement Reserves Exchange) requirements. This will allow the implementation of the TERRE balancing product at national level and ensure compliance with the European Electricity Balancing Guideline (EBGL).

The BSC Panel has recommended to the Authority (at its 14 June 2018 meeting) that it approve the P344 Alternative Modification (mandatory sharing of Half Hourly (HH) delivered volumes with the customer’s Supplier) and reject the Proposed Modification (customer consent required for sharing HH delivered volumes with the customer’s Supplier).

The Authority approved the Proposed Modification for implementation on 28 February 2019 (February 2019 BSC Release).

Elexon’s technical solutions

  • Foundation programme

About other IWGs

This IWG is part of a collection of groups that will focus on the implementation of Project TERRE and its impact on the UK electricity industry.


Click on the X next to any of the icons to replace them with a short-cut link to the page you are currently on or search for a specific page.

List of BSC Insights

Previous Circulars

Training videos and services

Market Entry

Charge Codes and Switch Regimes

Add New