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EU Gas Balancing Code – Nomination Update [Revised to reflect action TX1002]

EU Gas Balancing Code – Nomination Update [Revised to reflect action TX1002]. Action TX1002: EU Balancing Code/Nominations: Provide an overview of what areas/decisions National Grid has autonomy over, and those that must be agreed with other parties. Nomination Process at IPs.

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EU Gas Balancing Code – Nomination Update [Revised to reflect action TX1002]

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  1. EU Gas Balancing Code – Nomination Update [Revised to reflect action TX1002] Action TX1002: EU Balancing Code/Nominations: Provide an overview of what areas/decisions National Grid has autonomy over, and those that must be agreed with other parties.

  2. Nomination Process at IPs Balancing Code Defines: Nomination Deadline Nomination Confirmation Deadline Renomination Process Timings

  3. NG Impact Assessment [May 2013]

  4. Nomination Policy – NG Current View • Nominations can be submitted from D-30 as per the UNC (the EU Balancing Code is silent on this point) [Application TBC with adjacent TSOs] • National Grid will not be offering a Pre-nomination cycle [TSOs may agree to offer] • Over-nomination requests for within-day interruptible capacity will not be offered: [TSO may reject nom if allocated capacity is exceeded and/or may treat over-nom as a request for interruptible capacity] • The GB regime will continue whereby Nominated gas quantities will not be validated by National Grid against any prevailing Entry or Exit Capacity Entitlement except in the case of an Exceptional Event • Any quantities of gas allocated to NTS Users in excess of Entry or Exit Capacity Entitlement will accrue Overrun Charges

  5. Nomination Policy – NG Current View (2) • A User holding both Bundled Capacity and Unbundled Capacity at an IP may submit separate Single Sided Nominations and Double Sided Nominations [CAM/Bal is only concept level – application TBC with adjacent TSOs] • A ‘Single Sided Nomination’ is a notice issued by a User to an Initiating Transporter, who forwards this to the Matching TSO • A ‘Double Sided Nomination’ is a notice issued by the User/s either side of an IP to their respective Transporters • National Grid intends to maintain the requirement for the provision of flow notifications from operators at NTS entry and exit points (i.e DFNs and OPNs) [TSO may require network users to provide further information]

  6. Nomination Assumptions • Prior to the implementation of the Nomination rules, National Grid and the adjacent Transporter will agree (and specify within the IA): • Identity of Initiating Transporter and the Matching Transporter • The harmonised information contained within the data exchange for the matching process - ‘EDIGAS xml’ messages will be utilised • The agreed method to ensure that the Processed Quantities for the National Grid User and the User’s Counterparty are equal (which by default shall be the ‘Lesser Rule’) • The adjacent TSO will be; Interconnector UK (IUK), BBL & Gas Link (subject to outcome of two way/three way capacity bundling discussions)

  7. Nomination Process Overview

  8. Example 1 – “Easy” match (Double Sided Nom)

  9. Example 2 – “Easy” match (Single Sided Nom)

  10. Example 3 – “Easy” match (Multiple Double Sided Nom)

  11. Example 4 – Lesser Rule (Double Sided Nom)

  12. Example 5 – Overrun (Double Sided Nom)

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