iGT Agency Services Background A number of responses to the Nexus consultation in 2008 supported a single agency service for both GT and iGT services In August 2011 E.On raised iGT UNC modification 039 “Use of a Single Gas Transporter Agency for the common services and systems and processes required by the iGT UNC” Xoserve was invited to join the 039 work group in December Working with iGTs, Shippers and GTs it has been concluded that iGT Ageny Services would best be progressed as an eighth business requirements document under Project Nexus The associated funding and governance topics will be discussed under the 039 workgroup

iGT Agency Service Scope Xoserve iGT Invoicing iGTs iGT data requirements MPRN creation Pricing data Supply Point Register: Create Update Delete AQ process UIPs MPRN creation (GTs only) Allocations GT Invoicing Inc EBI Supply Point Administration GTs GT data requirements Asset data, Supply point data, CoS events, Read data, AQ files, Invoices, Queries, etc Shippers

Suggested next steps Confirm PNUNC support this approach If so, identify streams of work, at high level expected to be: Supply point register Supply point administration Invoicing Develop business requirement document