The Mona Offshore Wind Project is a proposed offshore wind farm located entirely in Welsh waters in the east Irish Sea.
At the closest points the array area is 28.8 km from the north coast of Wales, 46.9 km from the northwest coast of England, and 46.6 km from the Isle of Man.
potential generating capacity
UK households powered with clean electricity
Mona has a cable landfall near Llanddulas, Conwy on the North Wales coastline and a proposed connection to the Bodelwyddan National Grid substation in Denbighshire.
Mona includes offshore elements, to generate electricity, and both offshore and onshore elements to enable the transmission of the electricity generated to the national grid:
- Wind turbine generators (up to 96 turbines, generating around 1.5GW of electricity)
- Four offshore substation platforms
- Offshore interconnector cables, inter-array cables and export cables
- Four transition joint bays (connecting the offshore and onshore cables)
- Onshore cables
- Onshore substation
- Connection into the existing Bodelwyddan National Grid Substation
The Mona Offshore Wind Project is classed as a Nationally Significant Infrastructure Project (NSIP). This means that a development consent order (DCO) application was submitted to the Secretary of State.
On 4 July 2025, the Secretary of State for Energy Security and Net Zero, Ed Miliband, announced that consent has been granted for the Mona Offshore Wind Farm. On 24 September 2025, the Mona Offshore Wind Farm was also granted a Marine Licence by Natural Resources Wales.
All documents relating to our application for development consent, the Planning Inspectorate’s examination and the Secretary of State’s decision are available on the Planning Inspectorate’s website.
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February 2021
Secured site as part of The Crown Estate (TCE) Round 4 leasing round
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June/July/August 2022
Mona Offshore Wind Project non-statutory consultation
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January 2023
Agreement for lease awarded by TCE
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April/May/June 2023
Mona Offshore Wind Project statutory consultation
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February 2024
Mona Offshore Wind Project application submitted to the Planning Inspectorate for a development consent order (DCO)
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March 2024
Mona Offshore Wind Project DCO application accepted for examination
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January 2025
Mona Offshore Wind Project DCO application examination closed
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July 2025
Mona Offshore Wind Project granted consent by the Secretary of State
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September 2025
Marine Licence granted by Natural Resources Wales
Suppliers
We want to maximise local content in the procurement approach, benefitting the nations and regions closest to our wind farms. If you would like to register your interest in future work, please visit the page here.
Community relations team
- [email protected]
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Freepost Mona
- 0800 860 6263