Norwich to Tilbury (formally East Anglia GREEN) - Planning Inspectorate Reference EN020027
Status: Pre-submission
The proposals are for a new 400kV electricity overhead transmission line in East Anglia running from Norwich (National Grid’s Norwich Main substation) to Tilbury in Essex.
They will also need to carry out some work at existing substations along the proposed route and build a new substation in the Tendring district to connect new offshore wind projects close to the coast.
The reinforcement in South Norfolk will consist of new overhead lines supported by a standard steel lattice pylons of 50metres in height with a distance of 350 metres between the pylons. It will start at Norwich Main substation, running to the west of the district, crossing the River Waveney into Suffolk.
The latest updates for this project can be found here.
Pre-application consultations
Non-statutory consultation: April to June 2022
NGET held a non-statutory consultation on their proposals between 21 April and 16 June 2022. This consultation was designed to provide an overview and justification for the project, present the options considered and preferred options identified and outline the next steps in the projects programme.
NGET held 12 consultation events and 12 online webinars throughout the consultation. South Norfolk Council's response to the initial consultation on the EA Green Project can be found here.
Second non-statutory consultation: June to August 2023
A second non-statutory consultation was held from Tuesday 27 June to Monday 21 August 2023. This consultation focussed on seeking feedback on the latest preferred draft alignment and further detailed development of the proposals.
Statutory Consultation: 10th April 2024 to 18th June 2024
National Grid have launched their Statutory Consultation for the Norwich to Tilbury Project which runs from 10 April until 18 June 2024.
The Project is a proposal by National Grid to upgrade the electricity transmission system in East Anglia between Norwich and Tilbury. The Project includes a new 400 kilovolt (“kV”) electricity transmission connection of approximately 184 kilometres ("km”) in overall length from Norwich Main Substation and Tilbury Substation via Bramford Substation, comprising:
• approximately 159 km of new overhead line supported on approximately 510 steel lattice pylons (approximately 50 metres (“m”) in height) some of which are gantries (typically up to 15 m in height) within proposed Cable Sealing End (“CSE”) compounds, or existing or proposed substations
• approximately 25 km of 400 kV underground cabling some of which is located through the Dedham Vale National Landscape (formerly known as Dedham Vale AONB)
• six new CSE compounds, each with a permanent access, to connect the overhead lines to the underground cables
• a new 400 kV East Anglia Connection Node (“EACN”) substation, with a new permanent access, on the Tendring Peninsula. This is proposed to be an Air Insulated Switchgear (“AIS”) substation
• substation extension works at the existing Norwich Main, and Bramford substations and works within the existing Tilbury Substation to connect and support operation of the new transmission connection
• temporary works associated with construction of the Project.
An alternative design at the Waveney Valley (referred to as the Waveney Valley Alternative) is also being considered and is the subject of consultation and ongoing assessment. This design alternative, if taken forward, would result in changes those elements of the Project set out below. This would instead comprise:
• installation of approximately 157 km of new 400 kV overhead line.
• installation of approximately 27 km of 400 kV underground cabling (some of which is located through the Dedham Vale National Landscape).
• eight new CSE compounds (each with a permanent access) to connect the overhead lines to the underground cables.
For information links to the documents are provided below.
Please see below a list of consultation documents and direct links to each of these documents, hosted on National Grid’s website.
|
Document |
Description |
Link |
|
Project background document |
This document provides a summary of the proposed Project including background, information about design changes, potential benefits and impacts, how we might propose to mitigate any significant effects and signposts for readers to more detailed information reports and how to provide feedback on the project. |
|
|
Community newsletter |
The newsletter sets out the proposed Project Information, details about the consultation, an overview map of the proposed Project area and how to provide feedback, along with a list of engagement activities throughout the consultation period. |
|
|
Preliminary Environmental Information Report (PEIR). The PEIR contains a description of the proposed Project, and a preliminary assessment of the likely significant environmental effects of the proposed Project based on the initial information available at that time. It also sets out how we propose to reduce these effects and how we propose to maximise the benefits of the proposed Project. |
Volume 1: Main Text (chapters) |
|
|
Volume 2: PEIR figures |
Split into multiple files in our document library: Norwich to Tilbury National Grid |
|
|
Volume 3: PEIR Technical Appendices |
Split into multiple files in our document library: Norwich to Tilbury National Grid |
|
|
PEIR non-technical summary |
||
|
2024 Design Development Report |
An in-depth technical document detailing the work we have undertaken to date, focusing on the work since the 2023 non-statutory consultation. |
|
|
2024 Strategic Options Backcheck and Review |
Provides an updated overview of the appraisal approach we have used to date to consider strategic options. These are reviewed and backchecked as part of the ongoing strategic options assessment and decision making process. |
|
|
2023 Non-Statutory Consultation Feedback Report |
Summarising the feedback we received during the 2023 non-statutory consultation and how it has been considered. |
|
|
Project maps |
A series of maps and plans showing the extent of the proposed Project. |
Multiple maps available in our document library: Norwich to Tilbury National Grid ET |
|
Consultation banners |
A series of exhibition banners with information relating to the proposed Project that will be used at the public information events. |
|
|
Interactive project map |
An interactive map of the proposed project. |
|
|
Statement of Community Consultation (SoCC) |
The SoCC sets out how NG intends to consult statutory consultees, stakeholders, affected residents, businesses and local communities ahead of its application for development consent for the Project. |
|
|
Feedback Questionnaire |
An online and paper feedback questionnaire to gather responses to the statutory consultation. |
|
|
Guide to interacting with our consultation plans |
A guide outlining the consultation maps and plans, and how to use them. |
National Grid ESO East Anglia Study: East Anglia study | ESO (nationalgrideso.com)
The Waveney Valley Valued Landscape Report was jointly commissioned by Suffolk County Council (SCC) and Norfolk County Council (NCC), with the support of SNC together with Mid Suffolk DC due to the proposed Norwich To Tilbury NSIP. This has now been published and available for you to view via the link below and please feel free to pass onto your communities.
The Waveney Valley Valued Landscape Report