P379 ‘Multiple Suppliers through Meter Splitting’

Formal title: Enabling consumers to buy and sell electricity from/to multiple providers through Meter Splitting

Current Status

Initial Written Assessment
Assessment Procedure
Report Phase
With Authority
Awaiting Implementation


This Modification will enable individual consumers to be supplied by multiple Trading Parties through a Balancing and Settlement Code (BSC) Settlement Meter at the Boundary Point. It will amend the market rules to support development of non-traditional business models and innovation, expanding upon the solution to be implemented by BSC Modification P344 ‘Project TERRE implementation into GB market arrangements’. It will achieve this through the creation of a new Party Agent role, the Customer Notification Agent (CNA), who would reconcile power flows through the Settlement Meter, enabling accurate allocation of volumes and costs, which in turn will allow Trading Parties to reflect these volumes in their bills and payments to consumers.

This Modification is Proposed by New Anglia Energy, a recent BSC entrant who will be an Exempt Supplier, but the principle behind it has support from a range of BSC Trading Parties including OVO Energy and Cooperative Energy, and non-BSC parties, including Powervault and Verv.


P379 was raised on 3 January 2019, and the Initial Written Assessment (IWA) was presented to the BSC Panel at its meeting on 10 January 2019. The Panel progressed P379 to the Assessment Phase. The first Workgroup meeting for P379 was held on 27 February 2019. The group agreed the Terms of Reference and discussed views on the proposal.

Next Events

The first P379 Workgroup was held on 27 February 2019. The group agreed the Terms of Reference and discussed views on the proposal. ELEXON are currently progressing the actions from the first meeting and determining the best time for the second meeting.


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