Project update- December 2025
We're grateful for the feedback we received from stakeholders and residents throughout the pre-application process.
We’ve now begun submitting planning applications for our proposed new substations.
This includes:
- An application to Rotherham Metropolitan Borough Council for a proposed new substation at Long Lane.
- An application to Bassetlaw District Council for a proposed new substation in High Marnham
The full applications and supporting documents are available on the relevant Council planning portals:
Application information for all substations can be found on the substation proposal pages above. We'll continue to update this page as we submit further applications.
At National Grid Electricity Transmission, we’re investing around £1.3bn each year to adapt and develop our network - of pylons, overhead electricity lines, cables and substations - to connect new sources of low carbon energy to homes and businesses.
Our Brinsworth to High Marnham project would transport clean energy from the North of England to homes and businesses in the Midlands and beyond, and play an important role in building a more secure and resilient future energy system.
These proposals form part of The Great Grid Upgrade, which is the largest overhaul of the grid in generations. The Great Grid Upgrade will play a big part in the UK government’s plan to boost homegrown power. It will help the UK switch to clean energy and make sure our electricity network is fit for the future; carrying more clean, secure energy from where it’s generated to where you need it.
Project Overview
We need to build and operate three new substations – one near Brinsworth in Rotherham, South Yorkshire; another near Chesterfield in Derbyshire and a third in High Marnham, near Normanton on Trent in Nottinghamshire. The new substations will allow us to safely carry more energy between the North of England and the Midlands and beyond.
The proposed substations would also enable us to upgrade the existing Brinsworth to Chesterfield and Chesterfield to High Marnham overhead electricity lines and connect future electricity transmission network projects as part of The Great Grid Upgrade. By getting greater capability out of the existing network, it will allow more electricity to pass through the transmission network and help accelerate the connection of clean energy projects.
Find out more about our Brinsworth to High Marnham project here.
Public consultations
In summer 2024, we undertook an extensive consultation with local residents, businesses and stakeholders, and we'd like to thank everyone for their views. Your feedback has been invaluable in helping us shape our proposals and finalise our planning applications, which we plan to submit in late 2025.
Get in touch
Do you have questions about the project? Or would you like to register your interest for us to keep in touch? Contact our Community Relations Team:
Email: [email protected]
Freephone: 0800 073 1047 Monday to Friday 9am-5:30pm (An answering service is in place outside of these times)
Write to us: FREEPOST National Grid Projects (JBP) (no stamp or additional address information required)
You can also register your details to receive email updates on the project.
If you think our proposals could affect your land, please contact the Brinsworth to High Marnham Land Referencing Team at Ardent. You can call 0203 693 2500 or email [email protected]. Alternatively, you can write to Ardent, 36-38 Botolph Lane, London, EC3R 8DE.