Gas Transmission

We own, manage, and operate the national transmission network in Great Britain, making gas available when and where it’s needed.

Find out more

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One-stop shop for stakeholders

Our stakeholders are important to us. Find all you need to know at our page for Gas Transmission stakeholders.

Stakeholder resources
FutureGrid map high res

Introducing FutureGrid

The FutureGrid project will build a hydrogen test facility from a representative range of decommissioned assets.

Find out more about the project


Find out more about connecting to, diverting, and shipping using the gas National Transmission System (NTS).

Operational data

Here you can find gas transmission data for industry analysts, including operational data for all industry stakeholders.


Find out about the charges that users of the gas National Transmission System (NTS) have to pay and how they are calculated.

Calorific value

Find details of how the calorific value (CV) of gas is calculated which we use to determine the amount of energy transported by shippers and suppliers.

Gas Winter Outlook Report

The Winter Outlook reports are designed to inform the energy industry, engage with customers and stakeholders over particular issues observed in the period and support the industry’s understanding of last winter’s supply and demand patterns. 

The document is supported by a data worksheet

Download the Winter Outlook report

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ST Fergus

Electricity and Gas Networks in Scotland – principles document

Gas Transmission is central to a new set of principles published this week by The Scottish Government, Scotland’s energy companies and Ofgem.

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Keeping gas and electricity flowing throughout the coronavirus crisis

As the world tackles coronavirus, National Grid employees are working hard to make sure the lights stay on and the gas keeps flowing.

Gas :
Abstract image of gas streaming inside yellow gas pipe - used for the National Grid story 'Shaping the future of UK gas markets'

Shaping the future of UK gas markets

Gas keeps over 80% of Britain’s households warm and fuels much of our nation’s traditional industrial activity. But what might our use of this all-important resource look like as part of a low carbon future? National Grid, alongside our industry partners, today announces the publication of the Gas Markets Plan.