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Grimsby to Walpole: Targeted consultation feedback form

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Survey Closes 08 Dec 2026


Grimsby to Walpole is a proposed 140 km overhead line with substations between Northeast Lincolnshire and north Norfolk.

These proposals form part of The Great Grid Upgrade, the largest overhaul of the grid in generations, which will provide homes, businesses and public services with secure, cleaner, home-grown British energy from more affordable sources.

Alongside our own assessments, what we hear from local people, landowners and stakeholders is important.

Your feedback has already helped shape our plans, and it continues to help us better understand what matters most to communities along the route.

This consultation seeks feedback on two specific proposed changes. These changes are being consulted on because they are both located in close proximity to the communities of Wisbech, West Walton and Walton Highway. Feedback on them could help inform their final design.

These changes are:

  • a proposed UK Power Networks (UKPN) power supply connection between the existing Walsoken substation and the proposed new Walpole B substation
  • proposed use of School Road and Salts Road for construction access and future maintenance associated with the proposed Walpole B substation

We would welcome your feedback on these updates. The targeted consultation is open from 12 noon on 3 November 2026 until 11:59pm on 8 December 2026. 

Consultation documents


A range of consultation documents and online tools are available to help you understand and provide feedback on the proposals.

These include:

  • plans of the identified changes
  • the community newsletter
  • this feedback form
  • the targeted consultation approach document
  • the Environmental Implications of Change Report
  • an interactive map

All of these documents are available to view on our project website.

Printed copies of most of our consultation documents are available free of charge on request. These can be requested by emailing contact@g-w.nationalgrid.com or by calling 0808 258 4395.

Some detailed technical documents may be subject to a printing charge.