Gas and electricity network route maps

Here you can find out the approximate location of our national gas and electricity transmission networks. You can also check if our transmission networks may be affected by your works by using the Linesearch website

A grey map of Britain on a white background showing where National Grid's gas and electricity networks are

Transmission network shapefiles

These datasets are for indicative purposes only. They can only be used for emergency and land use planning and cannot be used for commercial purposes. They are owned by National Grid and you are required to acknowledge us in your product or application using "© National Grid UK".

This data is supplied on a best-effort basis only, using available information as documented at the time by the transmission network operators. While every effort is made to make sure the information is accurate and up-to-date, we do not accept any liability for any direct, indirect, or consequential loss or damage of any nature--however caused--which may be sustained as a result of reliance upon such information.

The datasets contain gas and electricity transmission data only. For gas or electricity distribution data, please contact the distribution company for your area. You can find your local distribution company by going to the Energy Networks website.

If you are planning to undertake any ground works, please visit the Cadent Gas website or contact the Plant Protection team at least 14 days in advance.

All datasets are accompanied with Gemini 2.2 metadata.

Dates of modification: 

  • Cable – 08 Nov 2017
  • Gas Pipe – 25 May 2017 
  • Gas Site – 30 Oct 2017 
  • Overhead Lines – 23 Oct 2017 
  • Substation Site – 17 Nov 2017
  • Towers – 23 Oct 2017

Network maps

If you have any National Grid transmission GIS-related enquiries, please email [email protected]

Gas network maps

Identify the area you are interested in and download the corresponding document. Our national transmission high-pressure gas pipelines are shown in pink against a general map background.

If you are planning to undertake work please contact us at least 14 days in advance.

If you have a compatible GIS you may be able to use the gas shapefiles that represent this network.

A gridded map of the gas transmission network in Britain for reference

Electricity network overhead line maps

Identify the area you are interested in and download the corresponding document. Our high voltage overhead electricity lines are shown in red against a general map background. 

If you are planning work please contact us at least 14 days in advance. 

If you have a compatible GIS you may be able to use the overhead lines shapefiles that represent this network. 

A gridded map of overhead electricity line in Britain for reference

Electricity network underground cable maps

Identify the area you are interested in and download the corresponding document. Our high voltage underground electricity cables are shown in green against a general map background. 

If you are intending to complete work please contact us at least 14 days in advance. 

If you have a compatible GIS you may be able to use the underground cables shapefiles that represent this network. 

A gridded map of underground electricity cables in Britain for reference
Name Sort descending
NYNE - National Grid high-voltage cable location
NZNW - National Grid high-voltage cable location
NZSE - National Grid high-voltage cable location
NZSW - National Grid high-voltage cable location
SDNW - National Grid high-voltage cable location
SDSE - National Grid high-voltage cable location
SENE - National Grid high-voltage cable location
SESE - National Grid high-voltage cable location
SESW - National Grid high-voltage cable location
SHNE - National Grid high-voltage cable location
SHNW - National Grid high-voltage cable location
SHSE - National Grid high-voltage cable location
SJNE - National Grid high-voltage cable location
SJNW - National Grid high-voltage cable location
SJSE- National Grid high-voltage cable location
SKNE - National Grid high-voltage cable location
SKNW - National Grid high-voltage cable location
SKSE - National Grid high-voltage cable location
SKSW - National Grid high-voltage cable location
SONE - National Grid high-voltage cable location
SOSE - National Grid high-voltage cable location
SPNE - National Grid high-voltage cable location
SPNW - National Grid high-voltage cable location
SPSE - National Grid high-voltage cable location
SPSW - National Grid high-voltage cable location
SSNE - National Grid high-voltage cable location
STNE - National Grid high-voltage cable location
STNW - National Grid high-voltage cable location
STSW - National Grid high-voltage cable location
SUNE - National Grid high-voltage cable location
SUSE - National Grid high-voltage cable location
SUSW - National Grid high-voltage cable location
TGSW - National Grid high-voltage cable location
TLSW - National Grid high-voltage cable location
TMSW - National Grid high-voltage cable location
TQNE - National Grid high-voltage cable location
TQNW - National Grid high-voltage cable location
TRSW - National Grid high-voltage cable location

Gas emergencies

If you smell gas or have accidentally hit the NTS pipeline please call us urgently:

0800 111 999