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Modification: P356

Aligning the BSC with Grid Code Modification GC0099 'Establishing a common approach to interconnector scheduling consistent with the single intraday market coupling processes set out within Regulation (EU) 2015/1222 (CACM)'

Proposer: National Grid

Current Phase: Assessment Procedure

Lead Analyst: Chris Wood

Category: Interconnector

Implementation Date: 28 June 2018


P356 will align the BSC with Grid Code Modification GC0099, which seeks to introduce the interconnector scheduled transfer process to the Grid Code. This is in order to establish common, cross-code provisions which are compatible with both the EU single intraday market coupling processes, and GB and EU balancing processes.



P356 was raised by National Grid on 3 July 2017. The Initial Written Assessment was presented to the BSC Panel at its meeting on 13 July 2017.

The first P356-GC0099 joint Workgroup meeting was held on Tuesday 25 July 2017.

The Assessment Procedure Consultation was issued on 9 October 2017 until 27 October 2017.

The second P356-GC0099 joint Workgroup meeting was held at ELEXON on Tuesday 7 November 2017.



P356 Assessment Consultation  [958.9 Kb]
Document Date: 9 October 2017

P356 Initial Written Assessment  [734.7 Kb]
Document Date: 17 July 2017

P356 Proposal Form  [440.0 Kb]
Document Date: 3 July 2017