Select Committee on Trade and Industry Written Evidence


ADDENDUM 4

WINTER SCENARIOS

  The WOR gives the following capacities of the various supply sources feeding the UK market. We have added our view or the sources.

Supply (mcm/day) Winter Outlook MaximumBase Case   INEOS view Max Capacity60 DayCapacity
Beach327 303320-330300-310
Isle of Grain17 131713
IC Imports48 424842
Total SupplyExcluding Storage 392358390 360
StorageLRS (Rough) 4242
MRS (Hornsea etc) 2913
SRS (LNG) 493
Total Storage120 11912058
Total SupplyIncluding Storage 512477510 418


  We agree with the capacity that is available from the various sources on an instantaneous basis. This is a major step forward from previous WORs that have tended to overstate the beach capability. We do however have two significant issues with the "Base Case" numbers used in winter outlook. The first relates to the storage numbers that are assumed. While the instantaneous delivery may be 120 mcm/day there is not much physical capacity in the medium and short-range storage systems. When taken over 60 days the "deliverability" of storage is only half the instantaneous capacity. This brings the maximum sustainable capacity to around 420 mcm/day, assuming almost full imports through the interconnector.

  Our second issue relates to the assumptions around the interconnector. It should be recognised that the interconnector exports as well as imports. If demand for gas is high on the continent it is unlikely that gas will be made available to supply the UK market and indeed the UK could be seen as a source of gas. If the interconnector has no flow the maximum sustained delivery is around 375 mcm/day. If the interconnector is exporting at 75% of capacity the maximum gas available to the UK falls to around 340 mcm/day.

  It is worth noting that the supply capacity available to the UK for this winter is greater than the capacity that was available last winter.

60 day capacity (mcm/d) 2004-052005-06 Change
Beach320 303-17
Isle of Grain0 13+13
IC Imports25 42+17
Total SupplyExcluding Storage 345358+13
Storage55 58+3
Total SupplyIncluding Storage 400416+16


  Clearly if capacity were the key issue, this winter should be seen by the market as better than last winter. The issue that the market is concerned about is whether there will be gas available to fill the capacity when it is required. We believe the sustainable deliverability available to the UK market during cold weather will be around 420 mcm/day if the new import systems are utilised but this could fall to as little as 340 mcm/day if the interconnector exports gas.

  On the demand side we would agree with the analysis in the WOR that gives demand between 400 and 520 mcm/day for the top 60 days of a cold winter. The 60 day demand rate seems to be around 450 mcm/day for a "1 in 10" winter and around 400 mcm/day for an average winter.

  The following table shows the supply/demand balance for average and cold winter conditions with various interconnector flows.
Supply/demand balance (mcm/day) Winter Scenarios Import

Zero import

Export
Interconnector flowmcm/day 420-35
60 day supply capacitymcm/day 420375340
UK 60 day supply/demand balance
"1 in 10" cold winter450 mcm/d -30-75-110
Average winter400 mcm/d +20-25-60


  In our view the UK can survive average winter conditions if the interconnector imports at reasonable rates and this is probably a safe assumption for an average winter. However in a cold winter it is less likely that gas will be available to import through the interconnector and more likely that the UK will be short of gas. The gas shortfall will depend on the interconnector flows but is very likely to lead to wide scale demand side destruction.


 
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Prepared 29 March 2006