Western Power Distribution says that five thousand homes in South East Wales are without electricity because of the bad weather.
They say that properties in Swansea, Cardiff and the Valleys are worst affected.
The high number of incidents due to strong winds and heavy rain mean that they are working at ten times their usual rate.
More top news
Cloudy skies overnight, accompanied by patchy rain through the first part of the night.
Here are all the details you need to know before heading into Cardiff to watch Justin Bieber on Friday.
The director of the Royal College of Nursing in Wales says nurses are prepared to ballot on strike action if the current pay cap remains