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Change Proposal: CP1480

Creation of a new authorisation category for corrections to BOA related data

Proposer: National Grid Electricity Transmission Plc

Current Phase: CPC Consultation

Lead Analyst: Claire Kerr

Categories: CVA, SVA

Responsible Panel Committees: Imbalance Settlement Group (ISG), Supplier Volume Allocation Group (SVG)

Implementation Date: 2 November 2017 (November 2017 BSC Systems Release)


BSCP18 ‘Corrections to Bid-Offer Acceptance Related Data’ is ambiguous on who may authorise corrections to Bid-Offer Acceptance (BOA) data.  This lack of clarity is creating problems for the Transmission Company (TC) when trying to identify the right individual to contact and authorise corrections. This can cause delays in correcting BOA data. These delays could mean that corrections to data are not made by the Settlement Final (SF) Run causing incorrect data to enter Settlement.

CP1480 proposes the creation of a new Authorised Persons Category (Category “E”), specifically for this activity. Details of individuals in this new category would be made available to the TC for the purpose of seeking consent for corrections to BOA related data to be made. Additionally, the activity within BSCP38 can also be authorised by a Category “A” Authorised Person when no Category “E” Authorised Person is available.


The CP1480 Progression paper was presented to the ISG on 13 December 2016 to the SVG on 3 January 2017. It was then issued for CP Consultation on 9 January 2017, with responses due by 3 February 2017.

CP1480 was presented to the ISG on the 21 February 2017 for decision. ISG  asked for information on whether a shared mailbox can be used for an Authorised Person and if the list can be managed via the ELEXON portal. As a result, they deferred the decision for CP1480 as they were concerned the proposed solution would not adequately address the problem.

CP1480 was presented to SVG for decision on 28 February 2017 and similarly they decided to defer CP1480 for a month to await the outcome of ISG’s questions. They asked if ELEXON could explore an alternative solution and present the options at the next SVG meeting in April.

ISG and SVG at their meetings on 28 March 2017 and 4 April 2017 respectively agreed to amend the solution to allow Category “A” Authorised Persons details to be provided to the TC where the TC had not been able to contact the Category “E” Authorised Persons. Both Committees believed this ‘escalation’ route would deliver a more robust solution and address the key concerns previously raised. As a result, a new CP Consultation will be issued on 8 May 2017. CP1480 v2.0 will be presented to the ISG and SVG for decision on 27 June 2017 and 4 July 2017 respectively.

The Implementation Date for CP1480 has subsequently been moved from June 2017 to November 2017 as a result of the additional consultation required.


CP1480 Assessment Report (SVG193/06)  [1011.6 Kb]
Document Date: 28 February 2017

CP1480 Assessment Report (ISG191/04)  [1011.4 Kb]
Document Date: 21 February 2017

CP1480 Consultation  [975.3 Kb]
Document Date: 9 January 2017

CP1480 Progression Paper (SVG191/07)  [1.0 Mb]
Document Date: 19 December 2016

CP1480 Progression Paper (ISG188/06)  [1.0 Mb]
Document Date: 5 December 2016

CP1480 Proposal form  [191.0 Kb]
Document Date: 28 November 2016