Formal title: Changes to SAA Service Description and SAA URS for P269 systems fix

Current Status

CPC Consultation
Committee Decision
Awaiting Implementation


On 1 June 2015, the sum of BM Unit Relevant Capacities in a Base Trading Unit exceeded zero for the first time. The solution implemented by P269 failed to have its intended effect, and the P/C Status of all (non-Exempt Export) Supplier BM Units in the North Scotland GSP Group ‘flipped’ from Consumption to Production. A successful workaround was subsequently implemented. However, Elexon will implement an enduring fix to the SAA systems on 12 April 2016 to deliver the original intention of P269.

CP1453 proposes to ensure that the detailed SAA system design and specification documents fully capture the steps used by the SAA to determine and use P/C Status as part of implementing the enduring solution for the P269 systems fix.


CP1453 was raised by Elexon on 7 January 2016. It was issued for CP Consultation on 11 January 2016, with responses due by 5 February 2016. CP1453 was approved by the ISG at its meeting on 23 February 2016 for implementation on 12 April 2016.

Next Events

CP1453 will be implemented on 12 April 2016.


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