Modifications

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Modification

0606S - National Grid Gas plc and National Grid Gas Distribution Limited transitional invoicing arrangement post Project Nexus

Implemented
Medium impact
Rough Storage
Shippers
Low impact
GB Gas Transporters
Modification

0605S - Amendments to TPD Section K - Additional Methods to Procure and Dispose of Operating Margins Gas

This modification seeks to enable National Grid NTS to procure and dispose of Operating Margins Gas in a more efficient and economical way
Implemented
Low impact
National Transmission System
Rough Storage
Shippers
Modification

0604S - Central Data Services Provider – Arrangements following implementation of Project Nexus

This modification identifies measures necessary to ensure the FGO arrangements implemented under Modification 0565A are effective upon implementation of Project Nexus by aligning the services introduced by Modifications 0432, 0434 and 0440 (and other Nexus related modifications with a PNID) to the
Implemented
Medium impact
CDSP
GB Gas Transporters
Independent Gas Transporters
Rough Storage
Shippers
Modification

0603S - Removal of liability for members of Performance Assurance Committee

To provide legal protection for members (and alternate members) of the Performance Assurance Committee (PAC) identical to those provided to members of the Energy Balancing Credit Committee.
Implemented
Low impact
CDSP
Centrica Storage Limited
Consumers
Distribution Network Operators
GB Gas Transporters
Independent Gas Transporters
National Gas Transmission
National Transmission System
On-the-day Commodity Market
Retail Energy Company
Rough Storage
Shippers
Suppliers
Modification

0602/A - Implementation of Non Effective Days and Variant Non-Business Days for Project Nexus Implementation (Project Nexus transitional modification)

This Modification Proposal identifies arrangements relating to the requirement for ‘noneffective days’ and ‘variant non-Business Days’ to enable an orderly and efficient transition from current UNC arrangements to the UNC regime identified within UNC Modifications 0432, 0434 and 0440. In addition
Implemented
High impact
GB Gas Transporters
Independent Gas Transporters
Rough Storage
Shippers