Investment and growth in Thurrock

National Grid is proposing to construct approximately 180 kilometres of new 400 kilovolt electricity cabling connecting Norwich in Norfolk to Tilbury in Thurrock.

National Grid submitted its application for development consent for the Norwich to Tilbury project to the Planning Inspectorate in August 2025. The application is currently in the pre-examination stage.

For more information about the project, go to the project page on National Grid’s website: Norwich to Tilbury | National Grid. For more information about the application and examination process, go to the Planning Inspectorate’s page: Norwich to Tilbury - Project information.

Main proposals in Thurrock

In Thurrock, the proposals include:
• Installation of new pylons and overhead 400kV cabling.
• Construction of a new substation to the north of Linford.
• Installation of underground cabling near the new substation to replace some existing overhead cabling.
• Modification of a section of existing overhead cabling around Chadwell St Mary and Linford.
• Temporary installation of a separate set of pylons and overhead line at the section that is being modified.

Relevant representations and register to have your say

The registration period – during which members of the public can register to have their say during the examination of the application – opened on Thursday 16 October 2025 and will remain open for 6 weeks, until Thursday 27 November.

To register, go to the Planning Inspectorate page for the project, where affected persons or organisations can provide contact details and comments about the main issues and impacts of the proposal: Register to have your say about a national infrastructure project - National Infrastructure Planning.
 

Public consultation 

National Grid has undertaken a series of statutory and non-statutory public consultations during the pre-submission stage of its application process. The council’s responses to these public consultations are accessible below.

The public consultation period has now closed as National Grid has submitted its application for the project. If you wish to comment on the merits of the application during the examination period, you must register as an interested party and make a relevant representation by Thursday 27 November 2025.