Up to 10,000 families in the North are still without power after gale force winds and snow storms struck the province.
Northern Ireland Electricity engineers have worked throughout the morning to restore power.
The customers still without electricity are in Bangor, Downpatrick, Newry, Lisburn and Ballyclare.
Stormont enterprise minister Sir Reg Empey has called for a meeting with management once the latest emergency is over: "We do have to understand that there is an obligation placed on the company to ensure effective supplies of electricity.
It is under a statutory obligation and we would have to be satisfied that an appropriate and acceptable response has been made."