Joint Office of Gas Transporters

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0801 - Removal of capacity and balancing services from the role of CDSP

This Modification proposes to remove certain services, relating to capacity and balancing, from the role of the Central Data Service Provider (CDSP) within UNC. This will allow National Grid to deliver their UNC obligations through other means.

0800 - Introducing the concept of a derogation framework into Uniform Network Code (UNC) (Authority Direction)

This Modification seeks to introduce a framework for derogation as a concept in the Uniform Network Code (UNC), defining when and how these can be requested (Use Cases), as well as the process around consideration and approval or rejection of derogation requests. Also includes a Use Case for ‘Net

IGT UNC will require a Modification Proposal (as was the case for 0760). IGT160 was raised 16/2/22 and is intended to follow this timeline as closely as practicable

GB Gas Transporters

Independent Gas Transporters

0799 - UNC arrangements for the H100 Fife project (100% hydrogen)

Introduction of amended arrangements into the UNC to facilitate the use of 100% hydrogen gases specifically required for the industry H100Fife Ofgem Network Innovation Competition project.

Awaiting Implementation

Distribution Network Operators

0798S - Enablement of Exit Assignment process at Interconnectors

UNC Modification 0755S - Enhancement of Exit Capacity Assignments was approved for implementation on 15 July 2021. That Modification allowed for the application of the Assignment process to Unbundled Capacity at Interconnectors and is due to be implemented in Spring 2022. This Modification amends

Uniform Network Code (UNC), European Interconnection Document (EID)

0797 - (Urgent) Last Resort Supply Payments Volumetric Charges

To create a new charge type to pass Last Resort Supply Payments (LRSP) charges from Gas Distribution Networks to Shippers based on the originating market sector using a volumetric unit rate charging methodology.