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Presentation on theme: "Place your chosen image here. The four corners must just cover the arrow tips. For covers, the three pictures should be the same size and in a straight."— Presentation transcript:

1 Place your chosen image here. The four corners must just cover the arrow tips. For covers, the three pictures should be the same size and in a straight line. UNC Mod Proposals 0498/0502 – Update on actions Transmission Workgroup 3 rd July 2014 National Grid NTS Phil Hobbins (deputising for Dennis Rachwal)

2 22 Action 601 Issue 1 a) Entry gas quality data Gas Entry Condition limits can be provided to shippers under UNC TPD I 2.1 – please write to National Grid NTS receives measurements and records CV, Wobbe and CO 2 at all NTS Entry Points Daily average measurements for the period 01/06/13 to 31/05/14 are provided from the Teesside area on the next slides (BP and Px (TGPP) comingled gas): CO 2 and Wobbe Index CO 2 and CV National Grid NTS does not forecast gas quality

3 Daily Averages 1/6/13 – 31/5/14 Teesside Wobbe Index and CO 2 3

4 Daily Averages 1/6/13 – 31/5/14 Teesside CV and CO 2 4

5 55 Action 601 Issue 1 b) Exit gas quality data Gas quality at NTS Exit Points has to comply with GS(M)R limits (as set out in answer to action 501) National Grid NTS receives measurements and records CV and relative density (enabling Wobbe determination) at all NTS Exit Points At NTS to LDZ offtake points a more comprehensive data set is generally obtained, including CO 2 National Grid NTS will seek to provide sample exit data for the August Workgroup meeting

6 66 Action 605 Issue 5 Impact on DN and NTS (and IPs) National Grid NTS gave a provisional view on NTS impact on 1 st May. There is no further update at this time National Grid NTS has written again to DNs – this time to Panel members, suggesting any views are directly fed into this workgroup National Grid NTS has written to IUK and GasLink suggesting any views are directly fed into this workgroup


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