Review of Trade and Transfer Winter 09/10 Transmission Workstream 6 May 2010

Agenda Update on release of non obligated Oct 09 - Mar 10 Overview Trade &Transfer for Oct 09 - Mar 10 Update on release of non obligated Oct 09 - Mar 10

Transfer and Trades Oct 09 to Mar 10 All capacity requests satisfied in stage 1 (i.e by using capacity at the same ASEP) either by : Unsold NTS Entry Capacity (remaining Unsold from QSEC and AMSEC auctions) Surrendered NTS Entry Capacity (i.e. entry capacity made available by Shippers) Surrendered capacity allocated for at least one month at Bacton, Theddlethorpe, Easington, St Fergus More unsold remaining for daily auctions Stage 1 resulted in there being no unsatisfied bids. No Stage 2 required (i.e Transfer and Trade between ASEPs)

ASEPs where capacity was offered for surrender Capacity Surrendered – period 09/10 GWh ASEP OCT NOV DEC JAN FEB MAR Bacton 29 59 Barrow Theddlethorpe 5 3 Easington 218 139 65 135 106 107 Hatfield Moor Storage St Fergus 27 21 17 2 Hornsea Holehouse Farm Teesside 20 2.6

ASEPs where capacity offered for surrender was allocated Allocation met with surrendered – period 09/10 GWh ASEP OCT NOV DEC JAN FEB MAR Bacton 16 29 52 30 41 29.7 Barrow Theddlethorpe 2.5 Easington 1 1.5 2 Hatfield Moor Storage St Fergus 0.5 - Therefore, more unsold remained for daily auctions at these ASEPs

Totals for period October 09 to Mar 10 (GWh) ASEP Amount Requested Amount Surrendered Allocated from unsold Allocated from surrendered Bacton 211 293 13 198 Barrow 3 3.4 Theddlethorpe 4 8 1 Easington 6 771 Hatfield Moor Storage 35 St Fergus 0.5 72 Isle of Grain Hornsea Holehouse Farm Storage Teesside 31

Pre - October 2009 (GWh) April 09 to September 09 ASEP Amount Requested Amount Surrendered Allocated from unsold Allocated from surrendered Bacton 88 38 54 34 Barrow 0.2 Theddlethorpe 8.4 Easington 3.2 1.5 Hatfield Moor Storage St Fergus 4.6 Isle of Grain 963 Hornsea Holehouse Farm Storage 161 Teesside 3

Non obligated October 2009 to March 2010 Currently 3 mechanisms for releasing non obligated entry capacity QSEC Allocations at Isle of Grain WDDSEC Allocations at Hornsea, Avonmouth, Easington, Glenmavis, Partington, St Fergus DRSEC July 2009 – National Grid NTS received a request to initiate a DRSEC Auction National Grid NTS indicated, via letter to the Industry, 70 GWh available across 6 ASEPs for Oct 09 to Mar 10. 26GWh was allocated at Isle of Grain in October, November, December, January, February, March.