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  • IGTs

  • Independent Gas Transporters

    IGTs design and construct gas infrastructure but retain ownership. This allows customers to have a choice when planning how they wish to obtain a gas supply, an example being a housing estate developer choosing an IGT other than National Grid to construct and own a gas transportation network.

    The point where an IGT’s network connects to the National Grid network is called a Connected System Exit Point or CSEP. At the CSEP connection point National Grid would retain ownership of the connection apparatus.

    A list of IGTs can be obtained from the Ofgem website.

    Agency agreement process

    National Grid recognise that there are operational requirements on IGT customers, wishing to make CSEP connections to National Grid’s gas distribution network, to contract the physical works and the administration interfaces to a nominated ‘Agent’.

    Where requested to do so National Grid will allow the IGT to formally nominate another organisation to act on their behalf, a guidance note to clarify the process is available from the National Grid website.

    IGT Agency Agreement Process

    National Grid offer the following framework of contracts and agreements to support the IGTs:-

    • General Conditions of Contracts for Site Engineering Works of Connected Offtake Systems
    This contract covers all connection works where National Grid is required to conduct connection and / or reinforcement work in support of a new gas network

    • UIP/IGT Connection, Service Disconnection and Service Alterations Agreement
    This contract allows the IGTs, and the Utility Infrastructure Providers (UIPs) who they may employ, to self connect to the National Grid gas distribution system.

    • CSEP Network Exit Agreement (NExA)
    This agreement sets out the provisions applying to the offtake of gas from the National Grid gas distribution system. The NExA is a generic document, but site specific schedules are produced for each site through the quotation systems. Ancillary agreements are required where any supplies within a non-daily metered (NDM) NExA move to needing to be daily metered (DM).

    • Emergency Call Handling Service Agreement
    National Grid provide the national emergency call handling service to all IGTs and Independent Gas Distribution Networks (IDNs), utilising the same number for consumers on its own network (0800 111 999)

    • Emergency Service Agreement
    National Grid provides a gas emergency service to all consumers living on IGT sites within the boundary of its gas distribution network. The service is consistent with that provided to consumers living on National Grids own network, except where a permanent repair is required to be made to the upstream gas network which is offered on a optional basis.

    • Emergency Metering Service Agreement
    National Grid provides a gas emergency metering service to all consumers living on IGT sites within the boundary of its gas distribution network. The service is consistent with that provided to consumers living on National Grids own network.