This page provides a list of NTS Exit Zones and further materials regarding localised system management tools.
Training is available for Shippers via the E-Training package available via xoserve. Access to the E-Training package can be requested from the Xoserve Customer Life Cycle team. firstname.lastname@example.org.
NTS Exit Zones are defined areas of the National Transmission System, comprising a number of NTS Exit Points. The boundaries of these are defined by distinct pressure boundaries relating to the geographical location of the compressors, regulators and multi junctions connected to the NTS.
If system management actions are required, these may be carried out at NTS Exit Zone level.
View the NTS Exit Zones list
For queries regarding NTS Exit Zones or the Short Term Access to System Flexibility Methodology, please
contact the Shipper Liaison team via email
or call 01926 656568.
For all other queries, please contact
the Capacity team via email
or call 01926 654057
A copy of the 2014 Pre-Winter Webinars are availabe on the supporting information page
A copy of the web presentation given in September 2013 summarising National Grid's constraint management strategy and the tools available can be downloaded via the following links:
Constraint Management Actions Presentation
Constraint Management Live Meeting: Audio File
Constraint Management Information
We welcome your feedback; please send this to email@example.com
National Grid NTS will endeavour to notify Users via Active Notification System (ANS) messages if it believes that it may not be able to accommodate requests for short term system flexibility in one or more NTS Exit Zone(s).
Download the Short Term System Flexibility Allocation Methodology PDF
National Grid NTS may Scaleback Users’ Off-Peak Capacity if a constraint is forecast or experienced. Off-peak Capacity that has been scaled back may be restored if the constraint has been resolved.
Download the Off-Peak NTS Capacity Scaleback and Restoration Process PDF
National Grid NTS may ask Users for offers to surrender their Firm NTS Exit Capacity if a constraint is forecast or experienced.
Download the Firm NTS Exit Capacity Surrender Process PDF
National Grid NTS may ask Users for offers to deliver Offtake Flow Reductions if a constraint is forecast or experienced. An Offtake Flow Reduction is a reduction in flow at an offtake, relative to the prevailing OPN, for part or all of the gas day.
Download the Offtake Flow Reduction Process PDF
National Grid NTS may ask Users for offers for Locational energy actions if a constraint is forecast or experienced. This process is unchanged under Exit Reform.
Download the Locational Energy Actions Process PDF
View the latest operational data:
System Management Principles Statement (SMPS)
NTS Exit Capacity