The Government is giving the green light for a new electricity interconnector to be built between Ireland and Wales.
The 260 kilometre long cable will allow the two way flow of electricity, giving Ireland better access to the UK market.
The €600 million project will be funded by EirGrid, with assistance from the EU.
Energy Minister Eamon Ryan said the interconnector will unlock our wind and ocean resources and allow us to sell them to the rest of the world.
He is also promising that the project will lead to lower electricity prices in the years to come.