105
Free national fault line
Free, 24/7
SP Energy Networks
Your DNO
serves Isle of Anglesey
1+
towns covered
incl. Holyhead, Llangefni, Amlwch
up to £150+
Ofgem compensation
for cuts over 24h
Live outage map for Isle of Anglesey
The map shows incidents reported by users in real time, centred on Isle of Anglesey. Zoom in on your street to check whether a cut is your home only or a wider network fault — when neighbours are also dark, it is a SP Energy Networks job.
Mostly flat farmland with rocky coastline; the Menai Strait separates it from mainland Gwynedd. Atlantic and Irish Sea storms hit Anglesey directly; Holyhead's port operations are routinely affected by gales.
Live Power Outages in the UK
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Report a power cut in Isle of Anglesey
Seeing a cut the map hasn't caught yet? Add it in seconds. Your report is anonymous and appears on the live map above so neighbours in Isle of Anglesey know what's going on.
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Power cuts by town in Isle of Anglesey
Pick your town for local outage reports, the live map and your network operator's fault line.
Why the power goes out in Isle of Anglesey
Anglesey is a 270-square-mile island fed across the Menai Strait by the A55 grid corridor and several SP Manweb sub-sea cables. Mostly flat farmland with rocky coastline; the Menai Strait separates it from mainland Gwynedd.
Weather and terrain. Atlantic and Irish Sea storms hit Anglesey directly; Holyhead's port operations are routinely affected by gales.
How the network is run. SP Manweb depots at Llangefni and Holyhead dispatch engineers. The Wylfa nuclear site (decommissioning) once provided major export generation; the area is now being repowered for new nuclear and energy projects.
A local quirk worth knowing. Holyhead Port and the Stena/Irish Ferries operations have dedicated supplies for crane and ramp operations — domestic outages do not affect ferry departures.
What to do when the power goes out at home in Isle of Anglesey
Check whether neighbours are affected
Look at the street lights and the houses opposite. If they're on, your fault is inside your home — check the consumer unit. If they're out too, it is a SP Energy Networks network fault: call 105.
Dial 105 or 0800 001 5400
Have your full postcode ready. Ask the operator for an estimated time of restoration (ETR) and a fault reference number — both make any later compensation claim faster.
Unplug sensitive electronics
Unplug TVs, routers, computers and consoles to protect them from a surge when supply returns. Leave one light switched on so you'll know visually when the power is back.
Log start and end times
A cut over 24 hours in normal weather entitles you to £75 from SP Energy Networks under Ofgem's Guaranteed Standards. Severe weather has higher thresholds and a £2,000 cap. Keep a written log with photos — most payments arrive automatically within 10 working days.
The Selectra expert answers your questions on power cuts in Isle of Anglesey
Always to your Distribution Network Operator, not your supplier. In Isle of Anglesey that is SP Energy Networks. Dial 105 (Free national fault line) — free, 24/7 — or call SP Energy Networks directly on 0800 001 5400.
Atlantic and Irish Sea storms hit Anglesey directly; Holyhead's port operations are routinely affected by gales. SP Manweb depots at Llangefni and Holyhead dispatch engineers. The Wylfa nuclear site (decommissioning) once provided major export generation; the area is now being repowered for new nuclear and energy projects.
Yes. Under Ofgem's Guaranteed Standards of Performance, domestic customers in Isle of Anglesey receive £75 after 24 hours off in normal weather, plus £40 every additional 12 hours up to £300. Severe-weather events have higher thresholds and a £2,000 cap. Payment is normally automatic from SP Energy Networks within 10 working days — claim within 30 days if it doesn't arrive.
SP Energy Networks announces planned cuts by letter (and increasingly text or email) 2 to 8 days in advance. Most run 8am to 6pm and last 2 to 8 hours. Planned cuts do not qualify for Ofgem compensation unless your DNO failed to give adequate notice (a £40 payment applies then).
Power cuts in nearby areas
Other counties close to Isle of Anglesey — useful if your storm or fault crosses council boundaries.
Gwynedd
SP Energy Networks
Conwy
SP Energy Networks
Denbighshire
SP Energy Networks
Ceredigion
National Grid Electricity Distribution
Flintshire
SP Energy Networks
Wrexham
SP Energy Networks
Carmarthenshire
National Grid Electricity Distribution
Powys
National Grid Electricity Distribution
Other counties served by SP Energy Networks
Same operator, same emergency number, similar restoration patterns and compensation framework.