iGT UNC Consequential Changes What is expected by Ofgem and by when Anne Jackson

An overview of the Ofgem Switching Programme in relation to gas. Xoserve’s analysis about the consequences to the current system design from Ofgem’s Switching Programme (OSP) Source: Business Requirements Document - Ofgem Switching Programme, Sustaining Change to Xoserve Systems Gemserv

High Level Plan – where we are! 2nd – Code drafting maintenance 1st – SCR Drafting Source: Ofgem: Switching Programme: High Level Plan October 2018 Gemserv

Summary of proposed existing system change activity Source: E2E Transition Plan - Implementation Approach v1.0 Gemserv

Consequences to the iGT UNC of deploying the CSS design for switching Possible areas that might require attention under existing governance: Additional data fields and their population Redefinition of current data fields Changes to existing processes that will continue post CSS implementation Data cleansing Removal of retail elements from code (e.g. switching, objections) required for implementation of the CSS (i.e. removed and placed in RECv1.0 or v2.0 and not RECv3.0) Gemserv

Further questions? Please contact Anne Jackson for more details Anne.Jackson@Gemserv.com