1. MIPI European Transparency Project (ETP) Transmission Workstream 7 th October 2010

2. 2 Introduction  3rd package of EU energy market legal obligations (ref 715/2009) agreed 3rd September 2009.  Legislation aims to facilitate an EU-wide gas market by provision of a common dataset by 3rd March 2011.  Requirements on EU gas transporters for the transparency and publication of specified data passed to respective governments.  National Grid European Transparency Project (ETP) project will build on the current strategic MIPI platform for to deliver the data consistency and transparency in line with other EU TSO’s such as;  Standardisation of Units of Measure.  Additional data to be published (both increased volume & frequency).  Upgrade of graphics package - provision of new graphs and enhancement to existing graphs.  Extend the online retrieval availability of MIPI data to a rolling five years of history (data to be available with effect from 01/10/2010 and to be built up over time).  Link to MIPI: www.nationalgrid.com/uk/Gas/Datawww.nationalgrid.com/uk/Gas/Data

3. 3 MIPI European Transparency Project (ETP) May Jun 03/03/2011 SepAugJul Design Testing 03/03/2011 OctNov Development Implementation Governance EU 3 rd Package Implementation Deadline Timeframe Governance Activity Date Data Dictionary updated to reflect the MIPI changes 1st September 2010 Submit updated Reporting Manual to UNCC 2nd September 2010 UK Link Committee 14th October 2010 UNCC Meeting 21 st October 2010 MIPI ETP Go-Live 15th November 2010

4. 4 Summary of changes  4 NEW MIPI reports  4 ENHANCED MIPI reports (inclusive of the new Capacity Application screen)  4 MIPI reports CHANGING LOCATION  New graphical package (new and enhanced graphs)  4 new data items to ENTSOG  2 data items now (automated) to ENTSOG  Increased on-line data storage (5yrs)  Provision of unit conversions  Consistent Units of Measure across MIPI  Additional ASEP’s added to MIPI reports  Note: The current API functionality should not be affected, users with API’s will continue to receive the data requested.  For API information including API data names (including new data items) please access the following link: www.nationalgrid.com/uk/Gas/Data/help

5. 5 Summary of UNCORM / Data Dictionary Changes  Some minor housekeeping changes to UNCORM  Addition of some 32 additional data items  Sign-off of UNCORM required to formalise above changes AreaSummary of Additional Data ItemsNo. Balancing:Individual Entry & Exit Points Noms & Allocs (NTS direct connects only published at aggregated pending outcome of Ofgem EU 3 rd Package ‘Relevant Point’ Consulation) 6 Exit CapacityD+1 & D+6 Exit Zone offtake volumes6 CVCV at individual offtake level (D+1 to D+6)1 DemandForecast & Actual demand as % of peak day demand (D-1, D, D+1)5 LinepackD+1 & D+6 Linepack value for a given Exit Zone for a given Hour bar2 LNGDaily flows (ins, outs) and capacity at LNG facilities on D+1 basis4 StorageDaily stock, flows (ins and outs) and physical capabilities of storage facilities on D+1 basis 6 SupplyAggregate Physical Energy & Volume delivered to NTS on D+1 and M+15 basis 2

6. 6 Useful information  For further information on the 3rd package of EU energy market legal obligations please refer to the European Commission Energy Website;  http://ec.europa.eu/energy/gas_electricity/third_legislative_package_en.htm  Link to ENTSOG platform www.gas-roads.euwww.gas-roads.eu  Link to MIPI www.nationalgrid.com/uk/Gas/Datawww.nationalgrid.com/uk/Gas/Data  Please note that the link from IE3 to MIPI will be removed during the ETP project  For general queries please contact us;  By phone: 01926 65 6474 (weekdays 9-4:30pm)  By email: sysop.centre.reporting@uk.ngrid.comsysop.centre.reporting@uk.ngrid.com  Link to more detailed MIPI ETP presentation: http://www.nationalgrid.com/NR/rdonlyres/0A7A1EF0-CAA9-4FFC-85CA- FAA2E98B1082/43081/MIPIETPv7.ppt http://www.nationalgrid.com/NR/rdonlyres/0A7A1EF0-CAA9-4FFC-85CA- FAA2E98B1082/43081/MIPIETPv7.ppt