Modifications

The purpose of the modification is to shorten the code cut-off date (or line in the sand) from a 3 to 4-year period to a monthly rolling 3-year period.

This enabling Modification will facilitate a change to the current contractual oxygen limit at the St Fergus SAGE System Entry Point, through modification of a network entry provision contained within the Network Entry Agreement (NEA) between National Grid Gas plc and SAGE North Sea Limited (SNSL)

Under UNC TPD, M, 5.9.4, Shippers have 25 Supply Point Systems Business Days (SPSBD) after the read date to submit a read for settlement. Where there's an issue preventing the read from being validated, and that issue is not resolvable within the 25 SPSBD timeframe, the read becomes unusable. This

This Modification proposes to add a further ‘eligible cause’ to the Annual Quantity (AQ) amendment process within TPD Section G - 2.3.21.