1. ERGEG Gas Regional Initiative North-West IP Medelsheim / Obergailbach TSOs’ joint diagnostic 9 October 2007

2. 2 Agenda 1. Physical capacity between market zones 2. Flows at the interconnection point 3. Forward firm capacity products 4. Forward interruptible (temperature dependent) capacity products 5. Forward interruptible (UIOLI / Overbooking) capacity products 6. Summary forward capacity 7. Backhaul (reverse) capacity products 8. Summary backhaul capacity

3. 3 1. Physical capacity between market zones Est H Waidhaus Oberkappel Wallbach Oltingue Burghausen 435 GWh/d + 64 (I) Obergailbach Medelsheim 430 GWh/d + 30 (I) Gas Year 2007/08 situation Gas Year 2009/10 situation Nord H Waidhaus Oberkappel Wallbach Oltingue Burghausen 543 GWh/d + 64 (I) 620 GWh/d + 30 (I) Dornum Emden Dunkerque Montoir LNG Gross Calorific Value = 11,1 kWh/m 3 Hourly capacities on the german side have been converted to daily Obergailbach Medelsheim Dornum Emden 26 GWh/d + infinite (I) 118 GWh/d + infinite (I)

4. 4 2. Flows at the interconnection point Germany ->France flows Fra -> Ger flows Annual use rate (GRTgaz data): Gas Year 2005/6 = 64% Gas Year 2006/7 = 49% (to date)

5. 5 3. Forward firm capacity products GDF DTEGTGRTgaz Durations offeredMulti-yearly, yearly, half-yearly, 3- monthly, monthly, weekly, daily Multi-yearly, yearly, monthly, daily Allocation modeFirst Committed First Served Long term (80%): FCFS Short term (20%): Open Subscription Period, then FCFS if capacity unsold Quantity (GWh/d)435 -> Sept 2008 543 from Oct 2008 07/08: 25.57 08/09: 70.37 09/10: 117.65 430 -> Nov 2008 550 -> Nov 2009 620 from Dec 2009 Availability (GWh/d) Sold out 86 (20% of total) kept for short term bookings + up to 50 (16% of total) redistributed from majors capacity holders to new entrants

6. 6 4. Forward Interruptible (temperature dependent) capacity GDF DTEGTGRTgaz Durations offered Multi-yearly, yearly, half-yearly, 3- monthly, monthly, weekly, daily Interruptible product described in next slide Multi-yearly, yearly Allocation mode First Committed First Served Long term (80%): FCFS Short term (20%): Open Subscription Period (OSP), then FCFS if capacity unsold Quantity (GWh/d) 2730 (except between December 2008 and November 2009: zero) Availability (GWh/d) Sold outSold out for 2007/08 After November 2009: - Long term: sold out (open season) - Short term: not open for sale yet (will be sold through an OSP)

7. 7 5. Forward Interruptible (UIOLI/Overbooking) capacity GDF DTEGTGRTgaz Durations offered Multi-yearly, yearly, half-yearly, 3-monthly, monthly, weekly, daily Daily (no yearly booking, only day-ahead) Allocation mode First Committed First Served Click & Book (+ pro-rata if necessary) Quantity (GWh/d) 21 -> Sept 2007 37 from Oct 2007 no limitUp to physical capacity (430) Availability (GWh/d) 13 GWh/dno limitHistorical serving rate: 74% of requested capacity since Dec 2005 Note: if capacity has to be interrupted: - GRTgaz: prorata - GDF-DT and EGT: last committed, first interrupted

8. 8 6. Summary forward capacity (1/3) (information from EGT - available on private Extranet ENTRIX) (information from GDF-DT - published on the Internet website) (information from GRTgaz - published on the Internet website)

9. 9 6. Summary forward capacity (2/3) Comparison of available capacity by type (MWh/d) (information from EGT - available on private Extranet ENTRIX) (information from GRTgaz - published on the Internet website) (information from GDF-DT - published on the Internet website)

10. 10 6. Summary forward capacity (3/3) Note: on GRTgaz’ network, additional firm entry capacity could be made available to the market (if needed) through the so-called « releasable capacity » mechanism

11. 11 7. Backhaul (reverse) capacity products GDF DTEGTGRTgaz Durations offeredMulti-yearly, yearly, half-yearly, 3-monthly, monthly, weekly, daily Multi-yearly, yearly, monthly, daily Allocation modeFirst Committed First Served Open Subscription Period, then FCFS if capacity unsold Quantity (GWh/d)47No firm available but no limit for interruptible 80 Availability (GWh/d) 31 from Oct 2007 33 from Feb 2008 No firm available but no limit for interruptible 68 to 75 by end 2008 80 from Dec 2008

12. 12 8. Summary backhaul capacity (1/3) Capacity in MWh/d (information from EGT - not published) (information from GRTgaz - published on the Internet website) (information from GDF-DT - published on the Internet website) Note: if capacity has to be interrupted: - GRTgaz: prorata - GDF-DT and EGT: last committed, first interrupted

13. 13 8. Summary backhaul capacity (2/3) Capacity in MWh/d (information from GRTgaz - published on the Internet website) (information from GDF-DT - published on the Internet website) (information from EGT - not published)

14. 14 8. Summary backhaul capacity (3/3) For EGT: infinite available backhaul