People have been warned of the appliances they should plug out in the event of three-hour blackouts that could come early next year.
Some may face hours on end without electricity should there be a shortage of gas this winter.
If this happens, there is a chance the surge of electricity coming back may cause some plugged-in appliances to be damaged.
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Among the essential items which should be unplugged in the event of blackouts include televisions, irons and home computers.
After the power comes back on, it is advisable to wait before plugging these appliances back in, The Sun reported.
Should blackouts happen, they would be on weekday evenings in January and February when it is particularly cold, according to National Grid boss John Pettigrew.
As a result, it may be important to unplug the essentials before heading to bed in case appliances are damaged while people are sleeping.
Blackouts would most likely be from between 4pm and 7pm in the evenings on those weekdays when it’s really, really cold in January and February.
People should be ready in case the power goes off by having torches handy and batteries charged to get through the dark hours.
Some may opt for candles although beware as they may be a safety risk.
It is yet to be announced whether blackouts will definitely take place this winter in Ireland.
However, the potential blackouts depend on a number of factors including on whether the Irelnad fails to secure enough gas from other countries in time for the new year, especially if the country experiences a colder winter than expected.
This is combined with lower than usual wind speeds for wind turbines and restricted electricity imports via subsea cables from other European countries such as Belgium, France and the Netherlands.
Any plans for scheduled power cuts will need to be approved by the Government.
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