We own the national electricity transmission system in England and Wales. The system consists of approximately 4,500 miles of overhead line, over 900 miles of underground cable and over 300 substations.
If you have any questions or need more information about working near our network assets, please contact the National Grid Asset Protection team or submit an enquiry via the Linesearch website.
Linesearch provides search facilities for our assets so you can:
Phone: 0800 001 4282 (Asset Protection)
Email: [email protected]
For domestic enquiries, such as metering or power cuts, please contact your local electricity distribution operator, which can be found on the ENA website.
National Grid Electricity Transmission’s Network Access Policy (NAP) is written to facilitate collaboration between Transmission Owners, National Grid Electricity System Operator (NGESO) and other stakeholders.
The Network Access Policy is designed to deliver value for consumers in relation to the planning, management and operation of the electricity transmission system in Great Britain.