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Imbalance Settlement Group (ISG)

The ISG is responsible for overseeing the operation of the Imbalance Settlement processes and systems in the Central Volume Allocation (CVA) Market.

These processes are associated with the operation of the Central Services Agents (i.e. Balancing Mechanism Reporting Agent (BMRA), Central Data Collection Agent (CDCA), Central Registration Agent, Energy Contract Volume Aggregation Agent (ECVAA), and Settlement Administration Agent (SAA), Funds Administration Agent (FAA) and the Interconnector Administrator).

ISG Meetings are open to any BSC Party, with the exception of any confidential business.  Attendees can observe the proceedings.

Interested in becoming an ISG Industry Member or Alternate?  Apply using our online form or contact isgsecretary@elexon.co.uk for more information.


  • Nicholas Rubin


  • Karen Lavelle

    Vice Chairman

  • Chris Stock

    ISG Technical Secretary

  • Tom Edwards

    ISG Panel Sponsor

  • Aaron Seamer

    Industry Member

  • Andrew Colley

    Industry Member

  • Dennis Timmins

    Independant Member

  • Gary Henderson

    Industry Member

  • Lisa Waters

    Industry Member

  • Martin Mate

    Industry Member

  • Phil Hewitt

    Industry Member

  • Walter Hood

    Industry Member

  • Olaf Islei

    Industry Member

  • Greg Heavens

    Industry Member

Imbalance Settlement Group (ISG) - Historical Meetings