Around 2,000 homes are still without electricity after storm force winds battered the west coast of Ireland.
The ESB said the majority of homes affected by power cuts were in counties Mayo, Sligo and west Galway.
A spokesman said ESB crews had been working since first light to rectify the situation and that the company was confident power would be restored to most homes by the end of the day.
He said outages had been caused by the high winds damaging pylons and blowing debris onto power lines in many areas. Earlier today up to 12,000 homes, many in Co Donegal, suffered power outages.
Meanwhile, Dublin's Pearse Station has been closed for the remainder of the day due to overnight storm damage to the roof. Iarnród Eireann has said its rail services will operate normally but will not stop at Pearse Station. It has advised customers intending to travel to or from Pearse Station to use Grand Canal Dock, Tara Street or Connolly Stations.
In the North around 1,000 homes were also without power this morning.
Both the ESB and the Northern Ireland Electricity advised members of the public to steer clear of fallen power lines.
Met Éireann said westerly winds gusted as high as 130km/h this morning, before easing later in the day.
Motorists and road users were warned to drive with care as high winds and heavy rain continue to sweep across the country.
The AA said overnight storms resulted in a number of obstructions with fallen trees and debris.
A number of ferry crossings were cancelled, including this morning's Stena services from Rosslare to Fishguard and Dun Laoghaire to Holyhead and all Irish Ferries crossings.
Walkers were advised to stay away from cliffs, beaches and other exposed coastal areas. The Coast Guard said the combination of tides, the forecasted gale warning and high sea conditions and swollen rivers may result in very dangerous conditions on the coast.