GRI Transparency Workshop London 19 September 2007 Centrica Storage Limited & Gas Storage Europe

2 GIE in 2007: 57 Members in 27 European Countries GIE represents the infrastructure operators GIE aims to contribute to the achievement of the European internal gas market GIE is voicing the views of the gas infrastructure operators and addresses issues affecting Transmission Storage LNG operators

3 GSE – Main Challenges Follow-up of the implementation of the GGPSSO Review and consider SEER proposals out today! Enhance Transparency and publication of storage data Promote a conducive investment climate - workshop on Investment in the week of 21st May

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5 Publication of Storage Projects Database - July

6 Dublin Updated 1.Operational Information Developing the weekly storage inventory proposals 2.Available Capacity Storage Operators announce available capacity 3.Storage Swaps NB97 ‘standard terms' equivalent to swap storage stock 4.Technical Issues Consider defining a rule to announce any technical issues affecting storage sites.

7 1) Way forward: GSE Transparency Initiative Publication of aggregated Storage Inventory GSE members publish weekly inventory levels in each of the areas of the Gas Regional Initiative Aggregation allows for the publication of information currently protected by commercial confidentiality However…

8 Answer Automate the process Resilience Accuracy Confidence

9 Storage Inventory Enhancement Suggested HUBCOUNTRYGSE SSO NBP & ZEEUK and BelgiumCSL, NG LNG, Fluxys TTF (Eurohub)Holland and DenmarkNAM, ESSENT, TAQA Energinet & DONG PEGNorthern, Central FranceGDF PSVItalySTOGIT & Edison Stoccagi EEX*GermanyBEB, EON R, RWE E, VNG & Wingas BaumgartenAustria, Czech Republic, Hungary & Slovakia.OMV, RWE T, EON FS, NAFTA & Pozagas. IberianSouthern France & SpainEnagas, TIGF and GDF Sud * It is proposed to include all German GSE SSOs within this market area. Storage hub and high accuracy from automation permits more frequent publication!

10 2) Available Storage Capacity

11 3) The ability to swap storage inventory and capacity throughout Europe reallocates capacity to where its most valued

12 4) Technical Issues Define a rule for when it is appropriate to release this info Will need to be mindful of: Severity and duration Contract Storage Portfolio GGPSSO – 6.8 Where unplanned disruptions [occur] the SSO shall ensure current system users are notified.. ASAP but no sooner than….X (?)