the project

A 750MW HVDC Interconnector between Ireland and Great Britain


MaresConnect is a proposed 750MW subsea and underground electricity interconnector system linking the electricity grids in Ireland and Great Britain.

Mares Connect Interconnect

MaresConnect will consist of two converter stations – one located close to the Maynooth 220kV substation west of Dublin and the other close to the Bodelwyddan 400kV substation in Denbighshire – connected by two High Voltage Direct Current cables under the Irish Sea.The cable route passes underground from Bodelwyddan to the coast and heads west under the seabed across the Irish Sea to landfall near Dublin Bay and continues underground to Maynooth in west Dublin.

Mares Connect Interconnector Map showing connection line between Ireland and the UK