Orsted confirms preferred cable route for East Irish Sea Transmission Project

Ørsted, a global leader in offshore wind, has confirmed its preferred onshore cable route for the East Irish Sea Transmission Project, which will bring secure renewable energy from the Mooir Vannin Offshore Wind Farm in the Isle of Man’s territorial waters to the UK.
Following extensive early engagement with communities across the proposed cable route search area, Ørsted has taken the decision to progress an application for a landfall at Fleetwood. As a result, the previously proposed southern landfall at Sefton will no longer be pursued.

This decision reflects detailed environmental, technical, commercial and planning assessments, alongside the valuable feedback received during seven local information events held in September 2025, which were attended by more than 550 residents.

Once operational, the majority of the electricity generated by the wind farm – enough of power more than 1.4 million homes – will be supplied to the UK grid. Up to 100MW could also be supplied to the Isle of Man to help meet the Island’s net zero and energy security goals.

Ørsted’s grid connection point remains at Penwortham, as directed by the National Energy System Operator (NESO) following their assessment of suitable connection locations. A potential alternative connection at Stanah substation is being explored; however, the final decision lies with NESO. Ørsted has also confirmed that the project will now proceed with an offshore booster station, meaning plans for an onshore booster station have been withdrawn.

Community feedback covered a wide range of topics including ecology, flood risk, traffic, land use, noise, vibration and grid connection. Ørsted is using this feedback to refine the project and continues to work closely with stakeholders such as Natural England, the Environment Agency, local planning authorities and local parish councils as part of its ongoing environmental and technical assessments.

The proposals will be developed further ahead of statutory consultation before submitting a Development Consent Order (DCO) application, which will be determined by the Secretary of State for Energy Security and Net Zero.

A spokesperson for the project, said: “We are extremely grateful to everyone who took the time to attend our events and share their views. This local feedback is playing a vital role in shaping the project as we work to deliver renewable energy infrastructure that is sensitive to local communities and the environment.”

Further information will continue to be shared with communities as the project progresses.