P302 – Improve the Change of Supplier Meter read and Settlement process for smart Meters

Formal title: Improve the Change of Supplier Meter read and Settlement process for smart Meters

Current Status

Initial Written Assessment
Assessment Procedure
Report Phase
With Authority
Awaiting Implementation


The existing Non Half Hourly (NHH) Change of Supplier (CoS) process is complicated, relying on multiple information flows being sent between new and old Suppliers and Supplier Agents. Due to the number of flows of data being sent the process is prone to error. When the data flows are not sent or cannot be processed by the recipient, delays occur which can result in inaccurate data entering Settlement. The costs of resolving these delays and process errors are borne by Suppliers, Supplier Agents and ultimately the consumer.

P302 proposes changes to the Code and BSCPs to amend the CoS process to make use of the enhanced functionality that smart Meters will provide and improve the passing of timely and accurate consumption data into Settlement.

The Modification takes forward the discussions and suggested way forward considered under Issue 53 ‘Reforming the Change of Supplier meter read process for smart electricity meters’.


EDF Energy raised P302 on 16 May 2014. The Initial Written Assessment (IWA) was presented to the Panel at its meeting on 12 June 2015, which agreed that P302 should progress through a three month Assessment Procedure. However, the Workgroup sought an extension to the Assessment Procedure to further explore a number of alternatives identified during the first Assessment Procedure Consultation.

The Panel at its meeting on 14 August 2014 granted a four month extension. An additional two-month extension was granted by the Panel at its meeting on 11 December 2014 due to considerations of Ofgem work on the potential impacts on customers and to seek synergies with the equivalent changes being considered in the gas sector.

We issued a second Assessment Procedure Consultation, which closed on 6 February 2015. The P302 Assessment Report was presented to the Panel at its meeting on 12 March 2015.

On 13 March 2015, we issued the Report Phase Consultation with responses due back on 7 April 2015.

The Panel considered the P302 Draft Modification Report at its meeting on 14 May 2015 and unanimously recommended that P302 should be approved.

The Authority approved the P302 on 18 June 2015 for implementation on 30 June 2016 as part of the June 2016 Release.


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