A lightning strike has damaged power lines in the south of the country leaving up to 7,000 homes with no electricity.
ESB workers in the south-west to the south-east are working since early this morning to fix the problem and a spokesperson said they cannot predict when power will be restored.
ESB is reporting 250 faults to power lines on the network in parts of Kerry across to Wicklow, including Bandon in Co. Cork and Kilkenny city.
Meanwhile, Irish Ferries have cancelled a number of services for today and tomorrow due to the stormy conditions.
Passengers are being advised to check the website irishferries.com for the full list of sailings affected.
For the rest of the country the worst of the bad weather hasn't passed over just yet.
Met Éireann is forecasting potentially stormy conditions and gale force southerly winds with hail and sleet also expected.
Meterologist with Met Eireann Pat Clarke says the weather is very mixed as we approach Christmas.