Transmission Infrastructure for future generations

MaresConnect Interconnector will provide infrastructure to support energy security, put downward pressure on consumer energy prices and help facilitate the transition to a low carbon energy future

bringing benefits to the community

MaresConnect will foster the integration of further, substantial renewable energy sources to support the Irish and UK governments’ 2030 green energy targets and achieve their Net Zero goal. Further interconnection between the two nations will increase security of supply. Interconnection creates downward pressure on wholesale energy prices, leading to savings for energy consumers.

The project is expected to result in approximately €860 million of private capital investment in Ireland and Wales and will create long-term jobs in construction and operations. In addition, the project has the potential to bring further benefits with the inclusion of a high-speed direct fibre optic communications link between Ireland and Great Britain.

Note: The number of homes is based on the annual average household consumption of 4,200kWh (CRU’s decision paper published in March 2017 following its review of typical consumption figures (CER17042)) and an annual total of electricity transmitted via MaresConnect of approximately 2,400,000MWh.

Latest Project News and Updates

Media Release

Public Consultations to be held in Wales to discuss the MaresConnect Electricity Interconnector

North Wales, 13 February 2024 Public consultations to discuss MaresConnect, the proposed 750MW electricity interconnector between Ireland and Wales, have been announced by the developer MaresConnect Limited. Tom Brinicombe, Planning and Permitting Manager for MaresConnect commented: “We are pleased to announce a series of public consultation events designed to introduce and discuss the project with local communities and stakeholders. “MaresConnect is intended to create a link between the Irish and …

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Media Release

MaresConnect: Public Consultation Announcement

MaresConnect is a proposed 750MW electricity interconnector designed to link the Irish and British electricity transmission networks, enabling electricity transmission in both directions between Ireland and Wales. In Wales, MaresConnect will include a converter station near the existing Bodelwyddan substation in Denbighshire and underground cabling, which will be routed within the local road network and agricultural land. The proposal is in the early stages of development, and members of the …

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Media Release

MaresConnect welcomes Ireland’s Draft Updated National Energy & Climate Plan (NECP) for 2021-2030

Submitted to the European Commission in December 2023, the NECP highlights Ireland’s commitment to a sustainable energy future.   We are delighted to be recognized as a vital component of Ireland’s energy evolution. MaresConnect, currently in the development phase, has recently progressed under the TYNDP 2024 application process, solidifying its position as the most realistic project for delivery by 2030.   Ireland’s dedication to shaping a greener, more connected energy …

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Media Release

MaresConnect welcomes new interconnector policy in Ireland

Dublin, 27 July 2023   Department for the Environment, Climate and Communications confirms further interconnection to Great Britain by 2030   MaresConnect welcomes the publication of the Irish Government’s National Policy Statement on Electricity Interconnection, announced on 25 July 2023 by the Minister for the Environment, Climate and Communications Eamon Ryan. The Interconnector Policy confirms Ireland’s support for further connection between Ireland and Great Britain by 2030, with proposed projects …

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News

Ireland: Application for a foreshore licence and invitation for public submissions or observations for the purpose of conducting stage 2 appropriate assessment

13 July 2023 MaresConnect Limited (MCL) has applied to the Minister of Housing, Local Government and Heritage for a Foreshore Licence under Section 3 of the Foreshore Act 1933, as amended, to carry out site investigation survey works off the coast of County Dublin; these site investigation works are to be carried out in order to determine the suitability of the area for cable routeing and other electrical infrastructure associated …

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News

Wales: Application for a marine licence for the MaresConnect Interconnector seabed survey

12 July 2023 MaresConnect Limited has applied to Natural Resources Wales (NRW) for a licence to undertake marine surveys to inform the design and routeing of the marine cable component of the potential Interconnector. The aim of the surveys is to identify environmental and technical constraints to be incorporated into a final marine licence application. The results of surveys and details of the constraints will be clearly set out in …

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