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UK Power Grid

Updated

Power crossing the border

Great Britain is linked to its neighbours by subsea cables. Power flows in whichever direction is cheaper at the time, so the same cable can import one hour and export the next.

In the half hour from 18:30 GMT on 7 November 2026, Great Britain was a net importer of electricity by 1,454 MW across 10 interconnectors, with 2,806 MW flowing in and 1,352 MW flowing out.

Net imports

1,454MW

GB is drawing power from its neighbours

Flowing in

2,806MW

5 of 10 links importing

Flowing out

1,352MW

4 of 10 links exporting

Link capacity

10,300MW

Combined across 10 links

Flow on each link

Bars to the right are power arriving in GB; bars to the left are power leaving. Measured over the half hour from 18:30.

View as table
Link Connects to Direction Flow (MW) Capacity (MW) In use
North Sea Link Norway Importing 1,400 1,400 100%
East-West Ireland Exporting 530 500 106%
Greenlink Ireland Exporting 514 500 103%
Viking Link Denmark Importing 512 1,400 37%
IFA-2 France Importing 464 1,000 46%
Moyle Northern Ireland Exporting 250 500 50%
ElecLink France Importing 224 1,000 22%
IFA France Importing 206 2,000 10%
Nemo Link Belgium Exporting 58 1,000 6%
BritNed Netherlands Idle 0 1,000 0%

Net position over the last 24 hours

All links combined. Above the line GB is a net importer; below it, a net exporter.

View as table
Time Net flow (MW) Position
19:00 2,538 Importing
19:30 2,522 Importing
20:00 1,710 Importing
20:30 1,652 Importing
21:00 1,042 Importing
21:30 974 Importing
22:00 -166 Exporting
22:30 -272 Exporting
23:00 -1,930 Exporting
23:30 -1,976 Exporting
00:00 -518 Exporting
00:30 -468 Exporting
01:00 -468 Exporting
01:30 -516 Exporting
02:00 -1,956 Exporting
02:30 -2,026 Exporting
03:00 -2,068 Exporting
03:30 -2,072 Exporting
04:00 -2,250 Exporting
04:30 -2,314 Exporting
05:00 -3,910 Exporting
05:30 -4,002 Exporting
06:00 -4,844 Exporting
06:30 -4,802 Exporting
07:00 -3,370 Exporting
07:30 -3,196 Exporting
08:00 -868 Exporting
08:30 -712 Exporting
09:00 1,156 Importing
09:30 1,268 Importing
10:00 1,744 Importing
10:30 1,752 Importing
11:00 1,338 Importing
11:30 1,356 Importing
12:00 2,098 Importing
12:30 2,102 Importing
13:00 1,402 Importing
13:30 1,380 Importing
14:00 1,234 Importing
14:30 1,232 Importing
15:00 1,300 Importing
15:30 1,306 Importing
16:00 1,394 Importing
16:30 1,410 Importing
17:00 1,446 Importing
17:30 1,454 Importing
18:00 1,474 Importing
18:30 1,454 Importing
What this means

Interconnectors are high-voltage cables, most of them running under the sea, joining Britain's grid to those of its neighbours. There are 10 of them, reaching France, Belgium, the Netherlands, Norway, Denmark and both parts of Ireland.

Power flows towards wherever it is worth more at that moment. When Britain is windy and prices are low, the cables export; when it is still and prices are high, they import. That is why the direction on a single link can reverse within a day, and why the national net position swings so much.

Imports matter for emissions too: they carry the carbon intensity of the country they came from, which is why French nuclear or Norwegian hydro arriving here lowers Britain's own figure. Links occasionally run marginally above their nameplate rating, so “in use” can read slightly over 100%.

Common questions

Does Britain import electricity?

Yes, and it exports too. The cables run both ways, and the direction can flip within a day.

Which countries is Britain connected to?

France, Belgium, the Netherlands, Norway and Denmark, plus Northern Ireland and the Republic of Ireland.

Why would Britain export power and import it on the same day?

Power goes wherever it's worth more. If it's windy here and prices are low, it tends to head abroad. When the wind drops and prices climb, it tends to come back the other way.