105
Free national fault line
Free, 24/7
National Grid Electricity Distribution
Your DNO
serves Monmouthshire
3+
towns covered
incl. Monmouth, Abergavenny, Chepstow
up to £150+
Ofgem compensation
for cuts over 24h
Live outage map for Monmouthshire
The map shows incidents reported by users in real time, centred on Monmouthshire. 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 National Grid Electricity Distribution job.
Wye valley running south through Monmouth, Usk valley running south through Usk and Caerleon, and the Black Mountains fringe in the north. Wye and Usk flooding submerge low-lying substations at Monmouth, Chepstow and Usk most winters; Black Mountain storms bring overhead-line damage at Llanvihangel Crucorney.
Live Power Outages in the UK
Unable to load outage data. Please try again later.
Report a power cut in Monmouthshire
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 Monmouthshire know what's going on.
Thank you. Your report has been submitted and will help others in Monmouthshire.
Reports are anonymous. We use your address to place the marker on the map and never display your personal details.
Power cuts by town in Monmouthshire
Pick your town for local outage reports, the live map and your network operator's fault line.
Why the power goes out in Monmouthshire
Monmouthshire sits on the Welsh side of the Severn estuary, from Chepstow north to Monmouth and the Black Mountains fringe. NGED's South Wales licence covers the entire county. Wye valley running south through Monmouth, Usk valley running south through Usk and Caerleon, and the Black Mountains fringe in the north.
Weather and terrain. Wye and Usk flooding submerge low-lying substations at Monmouth, Chepstow and Usk most winters; Black Mountain storms bring overhead-line damage at Llanvihangel Crucorney.
How the network is run. NGED depots at Chepstow and Abergavenny dispatch engineers. The Severn crossings (M48 and M4) have dedicated supplies for tolling and traffic management.
A local quirk worth knowing. Tintern Abbey, the Wye Valley AONB and the Forest of Dean fringe all have dedicated tourism supplies — heritage operations are largely decoupled from public-network outages.
What to do when the power goes out at home in Monmouthshire
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 National Grid Electricity Distribution network fault: call 105.
Dial 105 or 0800 6783 105
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 National Grid Electricity Distribution 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 Monmouthshire
Always to your Distribution Network Operator, not your supplier. In Monmouthshire that is National Grid Electricity Distribution. Dial 105 (Free national fault line) — free, 24/7 — or call National Grid Electricity Distribution directly on 0800 6783 105.
Wye and Usk flooding submerge low-lying substations at Monmouth, Chepstow and Usk most winters; Black Mountain storms bring overhead-line damage at Llanvihangel Crucorney. NGED depots at Chepstow and Abergavenny dispatch engineers. The Severn crossings (M48 and M4) have dedicated supplies for tolling and traffic management.
Yes. Under Ofgem's Guaranteed Standards of Performance, domestic customers in Monmouthshire 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 National Grid Electricity Distribution within 10 working days — claim within 30 days if it doesn't arrive.
National Grid Electricity Distribution 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 Monmouthshire — useful if your storm or fault crosses council boundaries.
Torfaen
National Grid Electricity Distribution
Newport
National Grid Electricity Distribution
Blaenau Gwent
National Grid Electricity Distribution
Caerphilly
National Grid Electricity Distribution
Cardiff
National Grid Electricity Distribution
Merthyr Tydfil
National Grid Electricity Distribution
Rhondda Cynon Taf
National Grid Electricity Distribution
Vale of Glamorgan
National Grid Electricity Distribution
Other counties served by National Grid Electricity Distribution
Same operator, same emergency number, similar restoration patterns and compensation framework.