Greenlink is a proposed subsea and underground electricity interconnector cable (with associated converter stations) linking the existing electricity grids in Ireland and Great Britain (GB), and has a nominal capacity of 500MW. Greenlink will provide a new grid connection between EirGrid’s Great Island substation in County Wexford (Ireland) and National Grid’s Pembroke substation in Pembrokeshire (Wales). The power will be able to flow in either direction, depending on supply and demand in each country.
Greenlink has key strategic importance, as it will provide significant additional interconnection between Ireland and Great Britain, with onward connections to continental Europe. The construction and development of Greenlink will deliver increased energy security, regional investment and value for money to consumers, and will enable the further integration of low carbon renewable energy sources.
Constructing and commissioning an interconnector requires the completion of a thorough programme of environmental and technical assessment to ensure that the final interconnector design fully considers the environment in which it is built. The Greenlink interconnector is expected to be commissioned by the end of 2023 and to have a close on three-year construction programme.
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