Up to 500 households in Mayo and Donegal are facing a night without power, as ESB crews work to repair the damage caused by Storm Rachel.
Most of those affected by blackouts have had power restored, but there are still 3 thousand homes without supply.
The severe weather has claimed the life of a man on the outskirts of Lisburn, whose car was hit by a tree.
Dozens of flights have been cancelled at Dublin airport due to high winds.
The National Coordination Group says the impact of Storm Rachel was not as severe as it might have been.
Bernadine Moloney of ESB Networks says repair crews are battling difficult conditions:
