Eamon Ryan (Dublin Bay South, Green Party) | Oireachtas source

The North-South Interconnector is critical to improving the efficient operation of the single electricity market and increasing security of electricity supply across the island of Ireland. It will also help us to move towards 70% renewable electricity, a commitment made in the Programme for Government - Our Shared Future. A resilient and well-connected energy infrastructure is vital for Ireland’s economic well-being and the ability to respond to the future needs of energy consumers.

The option of undergrounding the line has been assessed on several occasions over the years. Most recently, my Department published an independent study in October 2018 on undergrounding the interconnector which found that an overhead line remained the most appropriate option for the proposed interconnector.  The estimated cost, to answer the Deputy's question directly, of undergrounding the line was €680 million versus an estimated cost of €230 million for the overhead option.  This study, available on my Department's website, was the latest in a series of studies that reached the same conclusion. 

The decision last week by the Minister for Infrastructure in Northern Ireland to grant full planning permission to the project means that the project has now been fully consented both North and South. I expect Eirgrid and ESB Networks to engage openly and extensively with those living closest to the route of the interconnector. In that regard I note that EirGrid has already set in place a variety of engagements locally, including the appointment of community liaison officers and a mobile information unit active in the area. I expect such engagements to intensify in the coming weeks and months, subject of course to national public health guidelines on Covid-19.

I believe that this important new cross-Border infrastructure will significantly facilitate the integration of renewable energy into the power system, will bring economic benefits to the region and can address our climate objectives on an all-island basis.

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