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  • Gas Transmission Connections

  • About the NTS

    • Gas interconnector points


      Gas is delivered to nine reception points, or terminals, by gas producers.

      The gas producers deliver gas to the terminals from offshore facilities at fields beneath the sea around the British Isles and through pipelines which connect to the UK from Norway, Holland and Belgium. In addition, recently commissioned terminals at the Isle of Grain and Milford Haven allow liquefied natural gas (LNG) to be delivered to the terminal by boat from producers all over the world.

  • After treatment, which includes checking the gas quality meets statutory safety requirements and measuring the calorific value (the amount of energy contained), the gas is transported around Great Britain.  

    From the terminals, gas enters the National Transmission System (NTS), which is the high-pressure part of National Grid's pipeline network, consisting of more than 7,600 kilometres of high quality welded steel pipeline operating at pressures of up to 85 bar (85 times normal atmospheric pressure, over 1250 psi). The gas is forced through the system using 23 strategically placed compressor stations.

    The NTS can also supply gas to and receive gas from other countries via interconnecting pipelines to Europe and Ireland.

    The NTS supplies gas to UK end consumers from over 175 off-take points including large end users which are primarily large industrial consumers and power stations who receive gas directly from the NTS.  The eight distribution networks operate pipes at lower pressures which supply end consumers, including domestic customers.

  • Gas Distribution Connections Glossary of terms Contact Transmission Customer Commitment - Capacity