Gas Regional Initiative North-West Transmission Transparency Second Mini Transparency Workshop Transmission Transparency Project GRI North-West Operators‘ Group Transparency Workstream London, 10 July 2008 Contact: Oliver Altenhoff E.ON Gastransport AG & Co. KG Kallenbergstr Essen GERMANY

Gas Regional Initiative North-West Transmission Transparency Agenda:  Intro- duction  Project  Where do we stand  Next steps  Outlook Page 2 Mini Transparency Workshop; London, 10 July 2008 Agenda  Introduction  Transmission transparency project  Where do we stand  Next steps in the project  Transparency workstream outlook

Gas Regional Initiative North-West Transmission Transparency Agenda:  Intro- duction  Project  Where do we stand  Next steps  Outlook Page 3 Mini Transparency Workshop; London, 10 July 2008 Introduction SG meeting in Dublin, TSOs announced the development of a project based on requests of market participants EFET wish list established (beyond current legislative requirements) Transparency questionnaire responses and First Ofgem-Workshop Transparency Project plan presents TSO commitment First development report shows progress

Gas Regional Initiative North-West Transmission Transparency Agenda:  Intro- duction  Project  Where do we stand  Next steps  Outlook Page 4 Mini Transparency Workshop; London, 10 July 2008 Participating TSO

Gas Regional Initiative North-West Transmission Transparency Agenda:  Intro- duction  Project  Where do we stand  Next steps  Outlook Page 5 Mini Transparency Workshop; London, 10 July 2008 Project Overview Objective of the transmission transparency project:  Improve the publication of capacity and flow data  Provide clarity over published data  Demonstrate commitment to market reqirements Steps:  Enlist participating operators  Develop anticipated time schedule  Establish individual TSO implementation plans  Monitor improvements

Gas Regional Initiative North-West Transmission Transparency Agenda:  Intro- duction  Project  Where do we stand  Next steps  Outlook Page 6 Mini Transparency Workshop; London, 10 July 2008 Information to be published Capacity Information  (C1) Max technical capacity of the transmission system  (C2) Level of interruption probability  (C3) Daily commercial firm and interruptible capacity Flow Information  (F1) Daily flow and interruptions  (F2) Daily prompt allocation information to each shipper  (F3) Daily aggregate day-ahead nominations  (F4) Historic gas flow information database

Gas Regional Initiative North-West Transmission Transparency Examples of the project

Gas Regional Initiative North-West Transmission Transparency Agenda:  Intro- duction  Project  Where do we stand  Next steps  Outlook Page 8 Mini Transparency Workshop; London, 10 July 2008 Daily allocations

Gas Regional Initiative North-West Transmission Transparency Agenda:  Intro- duction  Project  Where do we stand  Next steps  Outlook Page 9 Mini Transparency Workshop; London, 10 July 2008 Nominations, allocations, interruptions

Gas Regional Initiative North-West Transmission Transparency Agenda:  Intro- duction  Project  Where do we stand  Next steps  Outlook Page 10 Mini Transparency Workshop; London, 10 July 2008 Max technical capacity

Gas Regional Initiative North-West Transmission Transparency Agenda:  Intro- duction  Project  Where do we stand  Next steps  Outlook Page 11 Mini Transparency Workshop; London, 10 July 2008 Daily technical and available capacity

Gas Regional Initiative North-West Transmission Transparency Agenda:  Intro- duction  Project  Where do we stand  Next steps  Outlook Page 12 Mini Transparency Workshop; London, 10 July 2008 Progress: January to October 2008

Gas Regional Initiative North-West Transmission Transparency Agenda:  Intro- duction  Project  Where do we stand  Next steps  Outlook Page 13 Mini Transparency Workshop; London, 10 July 2008 Next Steps Project:  Sept./Oct.: implementation monitoring  Nov: report progress SG-Meeting  Dec./Jan.: implementation monitoring  2009: review the results of the project  2009: lessons learned  2009: Any improvements left?

Gas Regional Initiative North-West Transmission Transparency Agenda:  Intro- duction  Project  Where do we stand  Next steps  Outlook Page 14 Mini Transparency Workshop; London, 10 July 2008 Outlook Road map - work plan 2009: Discussion to define further requirements, if any  Where is less than 3 rule applicable?  Should the publication on the TSOs‘ websites be harmonized?  Do TSOs need to publish further information? A lot of progress has been made and there is still room for success!