Northern Ireland electricity guide
Power Cuts in NI: What to Do Before and During an Outage
Published on 22 June 2026 by Wee Switch NI Team. Last reviewed 22 June 2026.
A practical Northern Ireland power-cut checklist covering NIE Networks, Powercheck, medical equipment, appliances and supplier follow-up.
A power cut is usually a network issue rather than a supplier billing issue, so the fastest route is to check the supply safely, report the outage to NIE Networks, and keep the right details handy. A little preparation also makes it easier to manage food, heating, phones and medical equipment if the lights go out for longer than expected.
Start inside the property. Look at the fuse box, trip switches and, if you use keypad or prepayment, whether the meter has credit and is displaying normally. If only part of the house is off, or a switch will not reset, the issue may be inside the home and you may need an electrician rather than a network fault report.
Write down when the power went off, when it came back, any reference number, and whether the outage affected the whole street or only your property. Those notes help if you later need to query damage, food loss, repeated interruptions, or whether any guaranteed standard might apply.
Check that hazardous appliances stayed off, reset clocks and heating timers, and make sure keypad or smart controls have not lost settings. If your meter, fuse box or an appliance behaves oddly after supply returns, get advice before repeatedly switching it on and off.
A power cut does not normally change your tariff, but it can disrupt timers, EV charging schedules, Economy 7 routines and stored meter displays. Once things are stable, check that your normal usage pattern and tariff comparison assumptions still make sense.
Check whether it is only your home
Report it to NIE Networks, not your supplier
Make the house safe while you wait
Plan ahead if electricity is medically important
Keep notes if the outage is long or repeated
How this guide is reviewed
This guide is reviewed for Northern Ireland relevance, current supplier status, and tariff-sensitive claims. Tariff figures should be checked against the latest Consumer Council NI source before publication.