National Grid invites communities to take part in consultation on proposals for electricity network reinforcement between North Humber and High Marnham
- The proposals, which are part of The Great Grid Upgrade, include approximately 90 km of new overhead line, between new substations at Birkhill Wood (East Riding of Yorkshire) and High Marnham (Nottinghamshire).
- The latest round of consultation follows over 700 feedback responses from two earlier rounds of public consultation – one in 2023 and another in 2024 - which have helped to shape the latest proposals.
- Network reinforcement is needed by 2030 to help carry renewable and low-carbon power to homes and businesses.
National Grid is inviting communities to comment on its latest proposals for North Humber to High Marnham, a planned new overhead electricity transmission line that would run for approximately 90 km between two new substations at Birkhill Wood and High Marnham. The eight-week public consultation begins on Tuesday 18 February and runs until Tuesday 15 April 2025.
The proposals for North Humber to High Marnham will reinforce the electricity transmission network and help provide much-needed additional capacity between the North of England and the Midlands. As part of The Great Grid Upgrade, the project will help the country meet future energy demands.
National Grid previously consulted communities on its early proposals for the project at two non-statutory consultations in 2023 and 2024. Since then, it has carefully reviewed the feedback received alongside the outcome of technical and environmental studies. This work has fed into the development of detailed plans, including a preferred route alignment. National Grid is now seeking feedback on these detailed plans ahead of submitting an application for development consent to the Planning Inspectorate next year.
Monica Corso Griffiths, Project Director for North Humber to High Marnham, commented: “As demand for electricity is set to double, we need to increase the capacity of the network between the North of England and the Midlands. This will support the Government’s decarbonisation targets, so that people living and working in these areas and beyond can benefit from the new renewable sources of energy planned to connect.
“We’re looking forward to sharing our detailed plans for North Humber to High Marnham with communities over the next eight weeks. We encourage anyone interested to take part in our consultation and share their views on the plans.
“National Grid’s detailed proposals will be available on the project website from midday on Tuesday 18 February. Additionally, National Grid is holding a series of in-person public information events and online webinars where those interested can learn more about the project and speak to members of the team.”
View the consultation materials
All consultation documents prepared for the statutory consultation will be available on the project website, nationalgrid.com/nh-hm, from midday on Tuesday 18 February. Printed copies of key consultation materials and visuals will also be available for reference at the below locations between Tuesday 18 February and Tuesday 15 April.
| Beverley Library, Champney Treasure House, Champney Road, Beverley, HU17 8HE | Misterton Library, High Street, Misterton, DN10 4BU |
| South Cave Library, 97 Church Street, South Cave, HU15 2EP | Retford Library, Churchgate, Retford, DN22 6PE |
| Goole Library, Carlisle Street, Goole, DN14 5DS | Bassetlaw District Council (Retford Office), 179 The Square, Retford, DN22 6DB* |
| Cottingham Library and Customer Service Centre, Market Green, Cottingham, HU16 5QG | Epworth Library, Live Well Isle of Axholme, Burnham Road, Epworth, DN9 1BZ |
| Crowle Library, The Market Hall, Crowle, DN17 4LA | Gainsborough Library, Cobden Street, Gainsborough, DN21 2NG |
| All Saints Parish Church Misterton, High Street, Misterton, DN10 4AL | Nottinghamshire Mobile Libraries (North Route 11) |
| Haxey Library, The Memorial Hall, Haxey, DN9 2HH |
*Bassetlaw District Council’s Retford Office is operating from a temporary location until late-February 2025. For more information, visit the Council’s website.
For up-to-date opening hours, please check with the relevant venue.
Attend a public information event
National Grid is holding a series of drop-in public information events at venues close to the preferred route alignment. At each event, attendees can view the proposals, speak to members of the project team and read printed copies of all consultation materials. Events are being held as follows:
| Date | Time | Venue |
| Saturday 1 March 2025 | 11am-4pm | Dunham on Trent Village Hall, Low Street, Dunham, NG22 0FJ |
| Monday 3 March 2025 | 1pm-7pm | Gringley on the Hill Community Centre, W Wells Lane, Gringley on the Hill, DN10 4QY |
| Tuesday 4 March 2025 | 1pm-7pm | North and South Wheatley Village Hall, Sturton Road, South Wheatley, DN22 9DL |
| Monday 10 March 2025 | 1pm-7pm | Crowle Community Hall, Woodland Avenue, Crowle, DN17 4LL |
| Friday 14 March 2025 | 1pm-7pm | All Saints Community Centre, Church Hill, South Cave, HU15 2EU |
| Saturday 15 March 2025 | 11am-4pm | Gilberdyke Memorial Hall, 11 Clementhorpe Road, Gilberdyke, HU15 2UB |
| Wednesday 19 March 2025 | 1pm-7pm | Garthorpe Village Hall, Shore Road, Garthorpe, DN17 4AD |
| Friday 21 March 2025 | 1pm-7pm | Epworth Imperial Hall, Chapel Street, Epworth, DN9 1HJ |
| Wednesday 26 March 2025 | 1pm-7pm | Cottingham Civic Hall, Market Green, Cottingham, HU16 5QF |
Attend a webinar
National Grid is holding six online webinar sessions where attendees can learn more about the proposals. Details of how to sign up for a webinar are available on the project website and are set out in the following table:
| Date | Time | Topic |
| Tuesday 25 February 2025 | 6:30pm-7:30pm | General – Overview of the proposals |
| Thursday 6 March 2025 | 6:30pm-7:30pm | Route sections 1, 2 and 3 |
| Tuesday 11 March 2025 | 6:30pm-7:30pm | Route sections 4, 5, 6 and 7 |
| Thursday 13 March 2025 | 6:30pm-7:30pm | Route sections 8 and 9 |
| Tuesday 18 March 2025 | 6:30pm-7:30pm | Route sections 10 and 11 |
| Thursday 27 March 2025 | 2pm-3pm | General – Overview of the proposals |
Providing feedback
To learn more about the consultation and how to get involved, members of the public can:
- visit the project website: nationalgrid.com/nh-hm
- email: [email protected]
- write to: Freepost NH TO HM
- call: 0808 189 1346
The deadline for feedback is 11:59pm on Tuesday 15 April 2025. Feedback can be submitted online, by email and by post using the details listed above.
About North Humber to High Marnham
North Humber to High Marnham is a proposal to build a new 400kV overhead electricity transmission line with an overall length of approximately 90km between two proposed new substations, Birkhill Wood 400kV substation and High Marnham 400kV substation.
The project is needed due to growing offshore wind generation, an anticipated tripling of wind generation connected across the Scottish networks by 2030 and the Government’s increased ambition to connect 50GW of offshore wind by 2030. This new renewable energy generation will increase power flows, which the existing electricity transmission network will not be able to accommodate without significant upgrades.
