Global GridMoyle: Great Britain to Northern Ireland
Moyle is the undersea power cable between Scotland and Northern Ireland, from Islandmagee, County Antrim, to Auchencrosh, Ayrshire. It can carry 500 MW, the joint 9th largest of Great Britain's 10 interconnectors, and opened in 2001.
See Moyle's flow right now, every 5 minutes, on the live dashboard (Great Britain's Interconnectors card), or on the Live map.
Recent flows
On 28 October 2026 (the 22.9 hours to 22:55 UK time), Great Britain exported 3.4 GWh over Moyle to Northern Ireland, an average of 148 MW, 30% of its capacity.
Key facts
| Connects | Great Britain and Northern Ireland |
| Route | Islandmagee, County Antrim, to Auchencrosh, Ayrshire |
| Capacity | 500 MW |
| Technology | High-voltage direct current, 250 kV |
| Length | about 64 km, 55 km under the sea |
| Opened | 2001 |
| Owner | Mutual Energy |
Questions and answers
What is Moyle?
Moyle is a high-voltage power cable between Great Britain and Northern Ireland, running from Islandmagee, County Antrim, to Auchencrosh, Ayrshire. It can carry 500 MW, 4.9% of Great Britain's interconnector capacity, and opened in 2001.
How much power can Moyle carry?
500 MW: the joint 9th largest of Great Britain's 10 interconnectors. That is about 4.9% of the 10,304 MW all of them can carry together.
How long is Moyle?
About 64 km, 55 km under the sea: the 9th longest of Great Britain's interconnectors.
Who owns Moyle?
Mutual Energy.
When did Moyle open?
In 2001, so it has been running for about 25 years.
Where can I see Moyle's flow now?
The Global Grid dashboard shows Moyle's flow every 5 minutes, from Elexon's figures: whether Great Britain is importing or exporting, and how much.
Great Britain's other interconnectors
| Interconnector | To | MW | Opened |
|---|---|---|---|
| IFA | France | 2,000 | 1986 |
| North Sea Link | Norway | 1,400 | 2021 |
| Viking Link | Denmark | 1,400 | 2023 |
| IFA2 | France | 1,000 | 2021 |
| ElecLink | France | 1,000 | 2022 |
| Nemo Link | Belgium | 1,000 | 2019 |
| BritNed | Netherlands | 1,000 | 2011 |
| Greenlink | Ireland | 504 | early 2025 |
| East-West | Ireland | 500 | 2012 |
Every UK interconnector, with the UK's imports since 2000 and the cables being built
Sources: the cables' owners and operators (capacities, routes and opening dates, as on the Pipelines tab's power link details); the flows on the live dashboard contain BMRS data © Elexon Limited copyright and database right; the United Kingdom's net imports are Ember's yearly electricity data (CC BY 4.0). Facts checked 28 October 2026.
To cite this page: Global Grid, “Moyle: Great Britain to Northern Ireland”, globalgrid.uk/interconnector/moyle, and the original source named above.