- 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.'
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.
Source: National Grid
